Porsche training p001 sports cars

Electrics JDiagnosis system: Read out fault memory; reset maintenance interval JWindshield wiper/washer system, headlight washer: Check function and nozzle adjustment JHorn: Check operat

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AfterSales Training

Servicing & General Repair – Sports Cars

P001

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Student Name:

Training Center Location:

Instructor Name:

Date: _

Important Notice: Some of the contents of this AfterSales Training brochure was originally written by Porsche AG for its

rest-of-world English speaking market The electronic text and graphic files were then imported by Porsche Cars N.A, Inc and edited for content Some equipment and technical data listed in this publication may not be applicable for our market Specifications are subject to change without notice.

We have attempted to render the text within this publication to American English as best as we could We reserve the right to make changes without notice

© 2012 Porsche Cars North America, Inc All Rights Reserved Reproduction or translation in whole or in part is not permitted without written authorization from publisher AfterSales Training Publications

Dr Ing h.c F Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®, Cayman®, Panamera®, Tiptronic®, VarioCam®, PCM®, 911®, 4S®, FOUR, UNCOMPROMISED.® and the model numbers and the distinctive shapes of the Porsche automobiles such

as, the federally registered 911 and Boxster automobiles The third party trademarks contained herein are the properties of their respective owners Porsche Cars North America, Inc believes the specifications to be correct at the time of printing Specifications, performance standards, standard equipment, options, and other elements shown are subject to change without notice Some options may be unavailable when a car is built Some vehicles may be shown with non-U.S equipment Please ask your dealer for advice concerning the current availability of options and verify the optional equipment that you ordered Porsche recommends seat belt usage and observance of traffic laws at all times Printed in the USA

Electrical Troubleshooting Logic

1 -Do you understand how the electrical consumer is expected to operate?

2 -Do you have the correct wiring diagram?

3 -If the circuit contains a fuse, is the fuse okay & of the correct amperage?

4 -Is there power provided to the circuit? Is the power source the correct voltage?

5 -Is the ground(s) for the circuit connected? Is the connection tight & free of resistance?

6 -Is the circuit being correctly activated by a switch, relay, sensor, microswitch, etc.?

7 -Are all electrical plugs connected securely with no tension, corrosion, or loose wires?

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“The best 911 ever.” With every new generation of the sports car classic comes the expectation that it is even better than itspredecessors Attempting to make the perfect sports car even better is both an honor and an obligation The new 911 onceagain succeeds in setting new benchmarks thanks to its sporty design, intelligent lightweight construction and new technolo-gies - and is even sportier and more suitable for day-to-day use than its predecessor.

The new 911 is the first to be completely redesigned in the last 15 years It has grown by 2.4˝ (6 cm) to 14.75’ (4.50 m) inlength One of the most noticeable changes, however, is the 3.9˝ (10 cm) longer wheelbase, which is clearly evident in theenhanced driving dynamics and the larger cabin Steel and aluminum have been combined in a perfectly coordinated hybriddesign that has made it possible to reduce the weight of 3042 lbs (1,380 kg) by 77 lbs (35 kg) despite the increased dimen-sions

The new 911 generation is available with two different engines The 3.4-liter flat-six engine of the Carrera delivers 350 hp andhas a top speed of 179 mph (289 km/h) A regenerative brake system, demand-controlled auxiliary units, a coasting function(rolling without engine power) and Auto Start Stop contribute to a reduced fuel consumption The new 7-speed transmissionhas been a significant contributing factor here The Carrera S reaches a top speed of 188 mph (302 km/h) with its 400-hp3.8-liter engine In addition to the higher engine speeds for both engine variants, the new roll stabilization system and thedynamic engine mountings, which are available with the Sport Chrono package, have played a major role in reducing the laptime on the Nordschleife with the Carrera S by 13 seconds to 7 minutes and 40 seconds

A high level of qualification throughout the entire AfterSales organization is essential to meet the high expectations of Porschecustomers, in spite of the ever increasing complexity of the technology used in the vehicles and the growing number ofdifferent variants The Information in this student guide describes the technical modifications that have been made to the new

911 (991) generation based on the vehicles from the 2nd generation 911 (997) model years 2008 to 2012

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Following the new 911 Carrera (991), is the new Boxster (981) Breathtaking styling, legendary driving dynamics combinedwith efficient performance and excellent day-to-day usability are the values that characterize the new Boxster The goal withthe third generation of the performance-oriented roadster was to confirm its top position in a very competitive environment inthe areas of driving dynamics as well as maximum performance with reasonable fuel consumption and low CO2emissions and

to further consolidate this position As with the new 911, the new Boxster also has a longer wheelbase and short overhangsfor a further improvement in driving dynamics

A completely redesigned, fully electrical convertible top provides for quieter driving and emphasizes the elongated side view

A significant reduction in weight through the use of aluminum and steel in the bodyshell has also reduced the fuel tion and emission values, as has downsizing the standard engine as well as using thermal management, vehicle electricalsystem recuperation and the Auto Start Stop function for all engine and transmission variants State-of-the-art audio andcommunication equipment with a top sound system as well as integration of driver assistance systems, such as the drivinglight assistant for increased comfort and safety, also ensure increased day-to-day usability

consump-A high level of qualification throughout the entire consump-AfterSales organization is essential to meet the high expectations of Porschecustomers, despite the ever increasing complexity of the technology used in the vehicles and the growing number of differentvariants The Information in this student guide describes the technical modifications that have been made to the new Boxstergeneration based on the vehicles from the 2nd generation 987 (model years 2008 to 2012)

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Description Section

Section 0 – General Information 0

Section 1 – Engine 1

Section 2 – Fuel, Exhaust and Engine Electrics 2

Section 3 – Transmission/Clutch 3

Section 4 – Chassis and Brakes 4

Section 5 – Body .5

Section 6 – Body Equipment, Exterior 6

Section 7 – Body Equipment, Interior 7

Section 8 – Heating and Air Conditioning 8

Section 9 – Electrical System 9

Conversion Charts 10

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Porsche Vehicle Identification Number (VIN) Structure

A81 = Boxster (981) (2013) A87 = Boxster/Cayman (2010-12) A91 = 911 (991) (2013) A97 = 911 (997) (2010-12) A70 = Panamera (2010-on) APA = Cayenne (2010) A2A = Cayenne (2011-on)

types, such as; Coupe,

Cabriolet, Targa, SUV

(Cayenne), sedan

(Panamera), etc This

character can vary from

* Please check the specific VIN in the Model

Informa-tion, PPK Group 17, D2 series for exact vehicle

specific Model Type and Engine Type.

** See PPK Bulletin Group 16 D12 for complete list.

Model Years 1981–2009: Used VIN positions 7, 8 & 12 as Porsche model type

designation digits USA model years in ( ).

As of Model Year 2010: VIN position 7 was

changed to a “A”, leaving positions 8 & 12 as Porsche model type designation digits.

indicate engine types, such

as; normally aspirated,

turbo, Hybrid, etc This

char-acter can vary from year to

year.

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Model Designations Used In Parts Catalogs and Workshop Manuals

911 911 (various 6 cylinder)911T 911 model (1968-73)911T 911 Turbo911S 911S (1975-77)911SC 911SC (1978-83)911C 911 Carrera (1984-89)911C2 911 Carrera 2911C4 911 Carrera 4911RS RS America (1993-94)912E 912E (1976)

914 914 (various models)

924 924 (various models)924T 924 Turbo924S 924S (1987-88)

928 928 (various 8 cylinder)928S 928S

928 S4 928 S4 (1987-91)

928 GT 928 GT (1989-91)

928 GTS 928 (1993-95)

944 944 (various models)944T 944 Turbo944TS 944 Turbo S (1988)944S 944S (1987-88) (4 valve)

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Sports Cars Engine Type Designations Since Model Year 1989

Engine Number Identification

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Model Engine Displ Engine Power Installed In

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* The HP number over the years has been listed in SAE or DIN (Kw to SAE HP factor is x 1.34, SAE HP to DIN HP factor is x 1.014)

Sports Cars Engine Type Designations Since Model Year 1989 (cont’d)

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Sports Cars Transmission Type Designations Since Model Year 1989

Transmission Number Identification

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Model Transmission Technical Installed In

Sports Cars Transmission Type Designations Since Model Year 1989 (cont’d)

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PNA 000 162 MA Boxster/S (981) - Intermediate Maintenance (MY 2013) .Online Only PNA 000 162 MB Boxster/S (981) - Maintenance (MY 2013) .Online Only

PNA 000 162 EA Boxster/S/Cayman S (987), 911/S/4/S4/T (997) - Minor Maintenance (MY 2005-07) .50 Sheets

PNA 000 162 EB Boxster/S/Cayman S (987), 911/S/4/S4/T (997) - Major Maintenance (MY 2005-07) .50 Sheets

PNA 000 162 EC Boxster/S/Cayman S (987), 911/S/4/S4/T (997) - Minor Maintenance 1 (MY 2008) .Online Only

PNA 000 162 ED Boxster/S/Cayman S (987), 911/S/4/S4/T (997) - Minor Maintenance 2 (MY 2008) Online Only

PNA 000 162 EE Boxster/S/Cayman S (987), 911/S/4/S4/T (997) - Major Maintenance (MY 2008) .Online Only

PNA 000 162 EG Boxster/S/Cayman S (987), 911/S (997) - Intermediate Maintenance (MY 2009) .Online Only PNA 000 162 EJ Boxster/S/Cayman S (987), 911/S (997) - Intermediate Maintenance (MY 2010-12) .Online Only PNA 000 162 EH Boxster/S/Cayman S (987), 911/S (997) - Maintenance (MY 2009) .Online Only

PNA 000 162 EK Boxster/S/Cayman S (987), 911/S (997) - Maintenance (MY 2010-12) .Online Only PNA 000 162 LA 911/S/4/4S (991) - Intermediate Maintenance (MY 2012-on) Revised Online Only

PNA 000 162 LB 911/S/4/4S (991) - Maintenance (MY 2012-on) Revised Online Only

PNA 000 162 HA 911 Turbo (997) - Intermediate Maintenance (MY 2009) Online Only PNA 000 162 HB 911 Turbo (997) - Maintenance (MY 2009) Online Only

PNA 000 162 HC 911 Turbo (997) - Intermediate Maintenance (MY 2010-12) .Online Only PNA 000 162 HD 911 Turbo (997) - Maintenance (MY 2010-12) .Online Only

PNA 000 162 EF Boxster/S/Cayman S (987), 911/S/T (997) Oil Change Service Checklist (MY 2009-12) .Online Only PNA 000 162 LC 911/S/4/4S (991), Boxster (981) Oil Change Service Checklist (MY 2012-on) Revised Online Only

PNA 000 162 GA 911 GT2/GT3 (997) Oil Change Service Checklist (MY 2009-12) .Online Only PNA 000 162 GB 911 GT2 (997) - Intermediate Maintenance (MY 2009) .Online Only PNA 000 162 GC 911 GT2 (997) - Maintenance (MY 2009) Online Only

PNA 000 162 GD 911 GT2 RS (997) - Intermediate Maintenance (MY 2011-12) .Online Only PNA 000 162 GE 911 GT2 RS (997) - Maintenance (MY 2011-12) .Online Only

PNA 000 162 FA 911 GT3 (997) - Minor Maintenance (MY 2007-08) 10 Sheets PNA 000 162 FB 911 GT3 (997) - Major Maintenance (MY 2007-08) 10 Sheets PNA 000 162 FC 911 GT3 (997) - Intermediate Maintenance (MY 2010-12) .Online Only PNA 000 162 FD 911 GT3 (997) - Maintenance (MY 2010-12) .Online Only

PNA 000 162 FE 911 GT3 RS 4.0 (997) - Intermediate Maintenance (MY 2011) .Online Only PNA 000 162 FF 911 GT3 RS 4.0 (997) - Maintenance (MY 2011) Online Only

Note !

Pre-MY 2008 Maintenance Sheets are available for sale However, due to a short application cycle, MY 2008-on

Maintenance Sheets will only be available online for download

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Intermediate Maintenance Checklist– 911 Carrera/S/4/4S (991) (2012-on)

Required Maintenance and Lubrication Service

* Oil Change Every 10,000 miles (15,000 km) or 1 year See Below Check Box.

JIntermediate Maintenance (Labor Operation 03 14 00 ) See Technical Manual After 20,000, 60,000, 100,000, 140,000 miles etc / 30,000, 90,000, 150,000, 210,000 km etc

Note: If the mileage for scheduled maintenance is not reached, intermediate maintenance must be performed no later

than after 2, 6, 10 years.

The terms ‘check’ and ‘inspection’ include all necessary subsequent work such as adjusting, readjusting, correcting and topping off, but do not include repairing, replacing and reconditioning parts or assemblies.

Electrics

JDiagnosis system: Read out fault memory; reset maintenance interval

JWindshield wiper/washer system, headlight washer: Check function and nozzle adjustment

JHorn: Check operation

JTires: Check tire pressure (TPM)

JBatteries and ventilation hoses: Check condition

JElectrical equipment as well as indicator and warning lights: Check operation

Inside of Vehicle

JPollen filter: Replace filter element

Front Luggage Compartment

JPollen filter: Replace pre-filter element

JCheck front lid lock and safety hook of the front lid for secure seating and function properly

JWindshield wiper/washer system, headlight washer: Check fluid level and antifreeze protection level

JCheck firewall body drains for debris

Outside of Vehicle

JCheck wiper blades

JVehicle lighting: Check operation

JAll headlights: Check adjustment

JRadiators and air intakes: Visual inspection for exterior debris and blockage

Under the Vehicle

JDrain engine oil

JTires: Check condition

JBrake system: Visual inspection of the brake pads and brake discs for signs of wear (without removing wheels)

JBrake hoses and lines: Visual inspection for damage, correct routing and corrosion Check brake fluid level

JAxle shafts: Visual inspection of the dust boots for leaks & signs of damage

Engine Compartment

JChange oil filter and fill engine oil (Every 10,000 miles/15,000 km, see separate Oil Change Sheet, PNA 000 162 LC)

JCoolant: Check level and antifreeze protection level

JPDCC: Check fluid level

Additional Maintenance – Replace Spark Plugs (Labor Operation 03 81 00 )

JReplace spark plugs: every 40,000 miles / 60,000 km or 4 years

Additional Maintenance - Drive Belt Labor operation 03 60 00

JCheck drive belt at 40,000 miles (60,000 km) or every 4 years

Additional Maintenance every 60,000 miles / 90,000 km or 6 years (Labor Operation 03 83 00 )

JReplace PDCC reservoir

JReplace drive belt

JChange all-wheel drive controller oil – 911 Carrera 4 – 4-wheel drive models

Additional Maintenance every 80,000 miles / 120,000 km or 4 years (Labor Operation 03 85 00 )

JAncillary unit mounts and chassis: visual inspection of all rubber mountings and boots for damage

JManual transmission: change oil

JPDK transmission: change oil

JPDK transmission: change clutch oil

JChange front differential oil – 911 Carrera 4 – 4-wheel drive models only

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Additional Maintenance every 2 years (Labor Operation 03 51 00 )

Change brake fluid (use only Original Porsche Brake Fluid)

Replace tire sealant

Inspection Performed - Technician Signature:

Road Test Check

Remote control, front seats, foot brake and electric parking brake (also operating travel), engine, clutch, steering,

transmission, ParkAssist, cruise control, PSM, PASM & Sport switches, sports exhaust system, door mirror fold-in

func-tion, heater, air-conditioning system and instruments: Check operation

Oils, fluids: Visual inspection for leaks

Road Test Performed - Technician Signature:

Customer Name: Date: / /

VIN: WPO _

Mileage (check one) Miles Kilometers: _

Dealer Name: Dealer Code:

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Maintenance Checklist– 911 Carrera/S/4/4S (991) (2012-on)

JMaintenance (Labor Operation 03 16 00 ) See Technical Manual After 40,000, 80,000, 120,000, 160,000 miles etc / 60,000, 120,000, 180,000, 240,000 km etc

Note: If the mileage for scheduled maintenance is not reached, maintenance must be performed no later than after

4, 8, 12 years.

Electrics

JSeat belts: check function and condition

JDoor locks: check function

JCheck wiper blades

JDrain engine oil

JVehicle underside and engine compartment: Visual inspection for leaks (oils and fluids) and abrasion (lines and hoses); Underbody panels: visual inspection for completeness, secure installation and damage

JSteering gear: Visual inspection of the dust boots for damage Tie rod ends: Check play and dust boots

JAxle shafts/Drive shafts: Visual inspection of the dust boots for leaks & signs of damage/wear

JExhaust system: Visual inspection for leaks and damage; check mounting and heat shields

JAir filter: Replace filter elements

JChange oil filter and fill engine oil (Every 10,000 miles/15,000 km, see separate Oil Change Sheet, PNA 000 162 LC)

JFuel lines and connections: Visual inspection for damage and leaks

JVisual inspection for leaks (oils and fluids)

JPDCC: Check fluid level

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Replace PDCC reservoir

Replace drive belt

Change all-wheel drive controller oil – 911 Carrera 4 – 4-wheel drive models

Ancillary unit mounts and chassis: visual inspection of all rubber mountings and boots for damage

Manual transmission: change oil

PDK transmission: change oil

PDK transmission: change clutch oil

Change front differential oil – 911 Carrera 4 – 4-wheel drive models only

Road Test Check

VIN: WPO _

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Intermediate Maintenance Checklist– Boxster/S (981) (2013)

JIntermediate Maintenance (Labor Operation 03 14 00 ) See Technical Manual After 20,000, 60,000, 100,000, 140,000 miles etc / 30,000, 90,000, 150,000, 210,000 km etc

Note: If the mileage for scheduled maintenance is not reached, intermediate maintenance must be performed no later

than after 2, 6, 10 years.

Electrics

JCheck wiper blades

JDrain engine oil and change oil filter

JAxle shafts: Visual inspection of the dust boots for leaks & signs of damage

Rear Luggage Compartment

JFill engine oil (Every 10,000 miles/15,000 km, see separate Oil Change Sheet, PNA 000 162 LC)

JReplace drive belt

JAncillary unit mounts and chassis: visual inspection of all rubber mountings and boots for damage

JManual transmission: change oil

JPDK transmission: change oil

JPDK transmission: change clutch oil

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Road Test Check

VIN: WP _

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Maintenance Checklist– Boxster/S (981) (2013)

JMaintenance (Labor Operation 03 16 00 ) See Technical Manual After 40,000, 80,000, 120,000, 160,000 miles etc / 60,000, 120,000, 180,000, 240,000 km etc

Note: If the mileage for scheduled maintenance is not reached, maintenance must be performed no later than after

4, 8, 12 years.

Electrics

JSeat belts: check function and condition

JDoor locks: check function

JCheck wiper blades

JDrain engine oil and change oil filter

JVehicle underside and engine compartment: Visual inspection for leaks (oils and fluids) and abrasion (lines and hoses); Underbody panels: visual inspection for completeness, secure installation and damage

JSteering gear: Visual inspection of the dust boots for damage Tie rod ends: Check play and dust boots

JAxle shafts/Drive shafts: Visual inspection of the dust boots for leaks & signs of damage/wear

JExhaust system: Visual inspection for leaks and damage; check mounting and heat shields

Rear Luggage Compartment

JAir filter: Replace filter elements

JFill engine oil (Every 10,000 miles/15,000 km, see separate Oil Change Sheet, PNA 000 162 LC)

JFuel lines and connections: Visual inspection for damage and leaks

JVisual inspection for leaks (oils and fluids)

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Replace drive belt

Ancillary unit mounts and chassis: visual inspection of all rubber mountings and boots for damage

Manual transmission: change oil

PDK transmission: change oil

PDK transmission: change clutch oil

Road Test Check

VIN: WP _

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Oil Change Service Checklist– 911/S/4/4S (991), Boxster/S (981)

USA and Canadian Models Only (2012-on)

Oil Change Service (Labor Operation 03 04 00 ) See Technical Manual Every 10,000 miles (15,000 km) or 1 year

Note: See appropriate Maintenance Checklists for complete maintenance requirements.

Oil Change Service Performed - Technician Signature:

VIN: WP _

Repair Order #: _

Technician Name:

Technician Signature:

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Subject Page

General Information – 911 Carrera (991) 2

General Information – Boxster (981) 3

Belt Drive 4

Crankcase 4

Pistons 5

Engine Oil System 5

Oil Level Measurement 6

Cooling System 8

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General Information

911 Carrera/S (991)

Two different engines are available for the 911 Carrera

(991) The standard models come with an engine where

the displacement has been reduced (to 3.4 liters from the

previous 3.6 liters) but the high torque of the previous

engine has been retained and the power increased further

This has been made possible by increasing the nominal

rpm from 6,500 rpm to 7,400 rpm

The S models still come with a 3.8-liter engine Here the

power has been increased by 15 hp to 400 hp (294 kW)

As with the 3.4-liter engine, the nominal rpm have been

increased to 7,400 rpm (+ 900 rpm) and the maximum

engine speed has been increased to 7,800 rpm (+ 300

rpm) The maximum torque is now 440 Nm (+ 20 Nm)

Full load curves for the 3.4-liter engine MA1.04

Technical Engine Specifications

Engine weight, MT/PDK 432 lbs (196 kg)/423 lbs (192 kg) Cylinder firing order: 1-6-2-4-3-5

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Boxster/S (981)

Two different engines are available for the Boxster (981)

The standard models come with an engine where the

displacement has been reduced (to 2.7 liters from the

previous 2.9 liters) but the power has been increased

further (from 255 to 265 hp) This was made possible by

the use of direct fuel injection and an increase in the

nominal revs from 6,400 rpm to 6,700 rpm

The displacement of 3.4 liters has been retained for the S

models, although here too the power has been increased

from 310 to 315 hp by increasing the nominal rpm

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Belt Drive

Since the 9x1 Sports Cars features electromechanical

steering, the servo pump on the engine is no longer

required If the vehicle is equipped with the optional PDCC

system, the hydraulic pump for this system is located at

• Attachment point for the engine strut

• Attachment point for the coolant pump

• Omission of the lifting eyebolt

The reason for these changes is the increased load at the attachment points.

Crankcase, Engine Suspension – Boxster (981)

The crankcase has been adopted from the predecessorengine with only minor changes in the following areas:

• Attachment point for the engine strut

• Omission of the lifting eyebolt

The engine suspension has been changed from a three-point mounting to a four-point mounting A special screw is used in order to remove the belt for maintenance work.

Notes:

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Precision milling is used on the piston in the groove for the

oil scraper ring as a way of effectively improving

emis-sions stability

Camshafts

Assembled camshafts are used on the 9x1 Sports Cars

An assembled camshaft is a camshaft on which the cams

are manufactured separately from the shaft body and are

subsequently attached permanently to the shaft body

Camshaft Adjuster

All engine versions are still equipped with VarioCam Plus,

the adjustment range is now 50° crank angle The vane

adjuster has an aluminum housing in order to optimize

weight

Engine Oil System

Variable Oil Pump

As on the 9x7 predecessors, the 9x1 series engine oilpressure is supplied via a variable oil pump This meansthat the correct oil quantity and the correct oil pressureare always delivered

Since only internal leaks can occur in the oil pump andthese do not cause any harm, it has been possible todispense with the following seals on the oil pumpcompared with the predecessor:

• Round seals on the oil extraction pumps

• O-ring on the pressure outlet

This has also allowed machining of the groove to bedispensed with

Additional changes are the asymmetric strainer and omission of the holder (see above illustrations)

Notes:

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Oil Level Measurement

The 9x1 series Sports Cars provide the option of

per-forming a dynamic oil level measurement when the vehicle

is moving and a static measurement without the engine

running when the vehicle is stationary If a display is shown

in the instrument cluster then it is valid in principle

The measuring options described below are possible due

to the integrated dry-sump lubrication of the engine and

the associated structure of the oil pan and sensor The

engine is filled with approx 10.6 qts (10 liters) of engine

oil, the change quantity is approx 7.9 qts (7.5 liters)

Important !

Engine oil must only be added when the engine is

switched off.

> When the rear lid is open, the engine-oil level in the

instrument cluster is only updated when the engine is

switched off

> When the rear lid is open and the engine is running, the

oil level is not updated, i.e the engine can be overfilled.

Oil Sensor

The sensor consists of an ultrasonic sensor with an

integrated evaluation unit and a temperature sensor for

detecting the engine oil temperature A measuring cup

with an inlet hole at the bottom and a vent hole at the top

is placed over the ultrasonic sensor A meander-shaped

element is used at the inlet hole to permit an accurate

measurement

Oil level OK, 100% Oil level OK, 75%

Oil level OK, 50% Oil level OK, 25%

Dynamic Measurement

Conditions for recalculation:

• Rear lid closed

on driving style

The measured values are only used for calculation if theconditions are met The result is then displayed in theinstrument cluster via CAN This value can also bedisplayed in the instrument cluster when the ignition is on

Static Measurement

Conditions for recalculation:

• Engine off

• Oil temperature at the sensor > 158° F (70° C.)

• Longitudinal and lateral acceleration < 1 m/s2, and tiltangle < 5.7°

• Wait max 60 seconds

When the ignition is switched on, the result is thentransmitted to the instrument cluster via CAN anddisplayed after 2.5 seconds

The following applies to both measurements:

If the conditions are not met when the measurement isperformed, the last valid value will be displayed A meanvalue calculated from the static measurement anddynamic measurement is displayed If there is no dynamicmeasurement, the static measurement value is alwaysdisplayed

Oil level measurement after opening the engine compartment lid:

When the engine compartment lid is opened for more than

45 seconds, all previously determined measured valuesare discarded because the DME control unit assumes thatoil was added

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The oil level is no longer displayed in the instrument

cluster and the message "Display only possible after short

time" appears A new static value is measured 60 seconds

after switching off the engine (engine oil temperature >

158° F./70° C.) even if the ignition is switched off

Minimum oil level reached

Oil level below minimum

Oil level below maximum

Notes:

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Cooling System

911 Carrera (991)

The coolant expansion tank is located in the service

opening under the engine compartment lid, on the left in

the direction of travel There are two caps on the tank,

both of which are black for reasons of appearance

The left-hand cap is for coolant, while the right-hand cap is

used as an oil filler opening The caps themselves are

identified with appropriate symbols The two threads are

different to avoid interchanging

The red ball indicates the current coolant level This ball

must be in the area between the min and max markings

when the engine is cold and the vehicle is level The

coolant quantity can vary between 30.3 and 32 qts (28.7

and 30.3 liters) depending on equipment

The coolant level indicator must be between the “MIN” and

“MAX” markings when the engine is cold and the vehicle ishorizontal The coolant quantity can vary between 6.1 and6.6 gal (23 and 25 liters) depending on equipment.Oil fill is on the right in direction of travel

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Subject Page

General Information – 911 Carrera/S (991) 2

General Information – Boxster/S (981) 3

DME Control Unit 5

Exhaust Systems/Emission Control 20

Auto Start Stop Function 25

Thermal Management .30

Thermal Management Operating Conditions 42

Cooling Systems 47

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General Information

911 Carrera/S (991)

An enhanced engine generation based on the DFI (direct

fuel injection) engines familiar from the previous models is

used for the 911 Carrera (991) models By improving

effi-ciency and using the latest engine technology, it has been

possible to bring about a further significant reduction in

the fuel consumption values for the 3.4-liter and 3.8-liter

engines compared with the previous models

Development Goals for the Engine

The characteristics that are typical of the 911 Carrera,

such as superior driving dynamics and performance

combined with low fuel consumption, low CO2emissions

and exceptional day-to-day usability, have been further

improved

Increase in engine power (compared to 2nd Gen 997):

• + 5 hp for the 911 Carrera (3.4-liter)

• + 15 hp and + 20 Nm for the 911 Carrera S (3.8-liter)

Reduced fuel consumption and emission values:

• Reduced by 8 to 15%, depending on the model

• Fuel consumption and emission values on the 3.4-liter

Carrera with Porsche Doppelkupplung (PDK), for

example, have been reduced by 15%

In addition to direct fuel injection (DFI), which was duced to sports cars with the 911 Carrera (997) and hasalready allowed improvements in fuel economy comparedwith the previous models, the flat-six engines feature thefollowing new technologies:

intro-• Thermal management for engine, transmission andheating

• Auto Start Stop function

• Variable deceleration fuel cutoff

• Vehicle electrical system recuperation (- 0.1 liters inNEDC - New European Driving Cycle)

• Displacement downsizing on the 911 Carrera (- 0.2liters)

• Coasting in conjunction with 7-speed PorscheDoppelkupplung (PDK)

• 7-speed manual transmission

• Electromechanical power steering (- 0.1 liters) Performance/driving dynamics:

• Sport button as standard

• Sport Chrono package incl dynamic engine mountings(optional)

The new engines use new injectors with 6 holes compared

to previous models These ensure more efficient mixtureformation, smoother running and maximum power output The flow resistance has been reduced byoptimizing the air cleaner and air cleaner housing

The intake system has been derestricted by omitting thehot-film mass air flow sensor in the intake tract and using

a pressure sensor for load detection on the intakemanifold instead

The exhaust system has also been derestricted by zing flow characteristics in order to reduce exhaust back-pressure

optimi-The new thermal management system also helps toreduce emissions and fuel consumption through controlledheating of the engine and transmission

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Technical Data

3.4-liter engine – Displacement has been reduced from

3.6 liters to 3.4 liters by reducing the stroke from 81.5

mm to 77.5 mm Nominal rpm have been increased to

7,400 rpm and the maximum engine speed to 7,800 rpm

in order to increase power output by + 5 hp despite the

reduction in displacement

3.8-liter engine – On the Carrera S, the nominal RPM

have been increased to 7,400 rpm and the maximum

engine speed to 7,800 rpm in order to increase power

output by + 15 hp The engine torque has been increased

by 15 ft lb (20 Nm) The 3.8-liter engine also has a tuning

flap in the intake manifold for improved charging, high

torque at low to medium rpm and an even torque curve In

addition, the 3.8-liter engine has a flap exhaust system in

order to increase engine power by further reducing

exhaust backpressure at high rpm

Notes:

Boxster/S (981)

An enhanced engine generation based on the DFI (directfuel injection) engine familiar from the previous model isused for the new Boxster (981) models Both engines nowfeature Direct Fuel Injection (DFI), which was already intro-duced with the 3.4-liter DFI engine of the Boxster S (987)

By improving efficiency and using the latest engine logy, it has been possible to bring about a further signifi-cant reduction in the fuel consumption values for the new3.4-liter and 2.7-liter DFI engines compared with theprevious models

techno-Development Goals for the Engine

Increase in engine power (compared 2nd Gen 987):Boxster (2.7 l) + 10 hp

Boxster S (3.4 l) + 5 hp Reduced fuel consumption and emission values:

A significant reduction in fuel consumption and emissionvalues has been achieved by measures including downsi-zing of the 2.7-liter standard engine and using thermalmanagement, vehicle electrical system recuperation andthe Auto Start Stop function for all engine and trans-mission variants The fuel consumption and CO2emissionvalues have been reduced by over 15%, depending on themodel

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The reduction in fuel consumption compared with the

previous model is primarily achieved with the following

new technologies:

• Displacement downsizing (with a simultaneous increase

in power) on the Boxster 2.7 l DFI

• Thermal management for engine, transmission and

heating

• Auto Start Stop function

• Vehicle electrical system recuperation

• Variable deceleration fuel cutoff

• Electromechanical power steering

• Coasting in conjunction with 7-speed Porsche

• SPORT button as standard

• Sport Chrono package incl dynamic transmission

mount (optional)

Technical Data

2.7-liter engine – The displacement for the Boxster modelshas been reduced from 2.9 liters to 2.7 liters The reduc-tion in displacement has been achieved by reducing thestroke from 77.5 mm to 72.5 mm The power has beenincreased by 10 hp to 265 hp (195 kW) compared withthe previous model through the use of direct fuel injection(DFI) The fuel consumption and CO2emissions of theBoxster with standard manual transmission have beenreduced by 12.8% In conjunction with the Porsche Doppelkupplung (PDK), the fuel consumption and CO2emissions have been reduced by 15% and 16%

respectively

3.4-liter engine – The power of the Boxster S has beenincreased by 5 hp to 315 hp (232 kW) As with the new2.7-liter engine, the nominal rpm have been increased to6,700 rpm (+ 300 rpm) and the maximum engine speedhas been increased to 7,800 rpm (+ 300 rpm) The torquehas stayed the same at 265 ft lb (360 Nm), but is appliedover a wider rpm range The fuel consumption values are

up to 15% lower than those of the previous model

The 3.4-liter engine has an additional switchable tuningflap in the intake duct compared with the 2.7-liter engine

to optimize power and torque

Notes:

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