Porsche 911 CARRERA - 1999 Manual de usuario

TechnicalManual

9.1'.1' ~7~ (996)

Technicallnformation

Contents:

Group9

Electrics

WKD483 721

www.WorkshopManuals.co.uk

911 Carrera (996) Foreword

Foreword

Theworkshopdocumentationfor the 911 Carrera(996)model hasthe designation

"911 Carrera (996)" Technical Manual

and containsTechnical Information as well as instructionsonRepairs.

Theintegrationof the technicalinformationpublishedin the"911 Carrera(996)"TechnicalManualwith

the instructionson repairs providesthe userwith a complexreferencework that combinesinto one book

associatedor cross-referencedmaterialof relevanceto workshopsandoriginatingfrom various informa-

tion media.

The"911 Carrera (996)"TechnicalManualconsists of 15 folders,subdividedintothe followingGroups

0 Entirevehicle-General

0 Diagnosis,part 1 (upto RepairGroup45) .1

0 Diagnosis,part 2 (asof RepairGroup61) .2

1 Engine,part 1 (upto RepairGroup 13) .3

1 Engine,part 2 (asof RepairGroup 15) .4

2 Fuel,exhaust,engineelectronics

3 Transmission,manualtransmission

3 Transmission,automatictransmission

4 Runninggear

5 Body

6 Bodyequipment,exterior

7 Bodyequipment,interior

8 / 9 Air conditioning/ Electrics

9 Circuitdiagrams,part 1 (upto and includingthe '99 model).5

9 Circuitdiagrams,part 2 (as of the '00 model).6

*1 Thetwo folders with Group0 are to be regardedas one folder;i.e. file the "TechnicalInformation"

notices onlyin front of the repair descriptionsin the folder "Group0 -Diagnosis, part I"

(up to Repair Group 45).

*2 Thesecond folder "Group0 -Diagnosis, part 2" (as of Repair Group 61) includesthe further

RepairGroupsbelongingto GroupO.

*3 Thetwo folderswith Group1 are to be regardedas one folder; i.e. file the "TechnicalInformation"

noticesonlyin front of the repair descriptionsinthe folder "Group1 -Engine, part 1"

(upto RepairGroup13).

*4 Thesecond folder "Group1 -Engine, part 2"(as of Repair Group 15) includesthe further Repair

Groupsbelongingto Group1.

VORW.CHP

Foreword

Printed in Germany -35, October 1999

www.WorkshopManuals.co.uk

*5 ThetwofolderswithGroup9 areto beregardedasonefolder;i.e.filethe"TechnicalInformation"

noticesonlyinfrontoftherepairdescriptionsinthefolder"Group9 -Circuit diagrams,partI" (upto

andincludingthe '99 model).

*6 Thesecond folder "Group9 -Circuit diagrams,part 2" (as of the '00 model) includesthe further

circuit diagramsbelongingto Group9.

The"911 Carrera(996)"TechnicalManualhasthe same structure in each folder,with the followingbreak-

downfor all Groups:

Title page: "911 Carrera (996)" Technical Manual

> Foreword

Title page: "Technical Information"

> Table of Contents,Technicalinformation

> Technicalinformation

Titje page: "Repair"

> RepairGroups:overview

> Table of Contents,repairs

> General/technical data

> Instructionson repairs

As can be seenfrom the breakdown,the publishedTechnicalInformationis in the front part of eachfol-

der -numbered accordingto the Groups.TheTable of Contentsassignedto eachGroupwill be peri-

odicallyupdated.

Followingthe TechnicalInformation,separatedby a title page,the instructionson repairs-assigned

accordingto the Groupsor brokendowninto RepairGroups-are includedin the folders.

Theinstructionsonrepairswillbeextendedandupdatedbymeansofsupplements.

Note

Sheetsthat alreadyexist in the "911 Carrera(996)"TechnicalManualandare updatedor revised

and therebyexchangedby a supplementare designated"replacementsheet".Revisionsor technical

modificationson pagesof these replacementsheetsare identifiedfor the userwith a vertical bar at

themargin.

www.WorkshopManuals.co.uk

Overview of repair groups

911 Carrera (996)

Group 0: Entire vehicle -General

Salescheck

Maintenance

Group 0: Diagnosis

On-boarddiagnosis

DMEdiagnosis

Tiptronicdiagnosis

ABSdiagnosis

Group 0: Diagnosis

Convertible-topdiagnosis

Airbagdiagnosis

Roll-overprotectionsystemdiagnosis

Seatmemorydiagnosis

Heatingdiagnosis

Alarmsystem diagnosis

PCMdiagnosis

ParkAssistentdiagnosis

HBAdiagnosis

Group 1: Engine

Engine-Crankcase, suspension

Engine-Crankshaft, pistons 1

Group 1: Engine

Engine-Cylinder head,valvedrive

Engine-Lubrication

Engine-Cooling 2

Group 2: Fuel, exhaust, engine electronics

Fuelsupply,control

Exhaustsystem,turbocharging

Fuelsystem,electronicinjection

Fuelsystem,K-Jetronic

Exhaustsystem

Starter, power supply,cruisecontrol

Ignitionsystem 3

Group 3: Transmission, manual transmission

Clutch, control

Manual transmission -Actuation, housing

Manual transmission -Gears, shafts, into gearsh,

Final drive, differential, differential lock

Group 3: Transmission, automatic transmission

Torqueconverter

Automatictransmission-Actuation, housing

Automatictransmission-Gears, control

Finaldrive, differential,differentiallock

Overview of repair groups

Printed in Germany -35, October 1999 REPGRU.CHP

www.WorkshopManuals.co.uk

Overview of repair groups 911 Carrera (996)

Group 4: 4

Running gear

Frontwheelsuspension,driveshafts

Rearwheel suspension,driveshafts

Wheels,tires, suspensionalignment

Ant~LockBrakeSystem(ABS)

Brakes-Brake mechanics

Brakes-Hydraulics, regulator,booster

Steering

Group 5: 5

Body

Bodyfront

Bodycenter,roof,frame

Bodyrear

Lids,flaps

Doorfront,centrallockingsystem

Group 6: 6

Body equipment, exterior

Slidingroof

Convertibletop,hardtop

Bumpers

Glazing,windowcontrol

Exteriorequipment

Interiorequipment

Passengerprotection 7

Group 7: Body equipment, interior

Linings,insulation

Seatframes

Seatupholsteries,covers

Group 8: Air conditioning

Heating

Ventilation

Air conditioning

Auxiliaryair conditioningsystem

Group 9 Electrics

Instruments,alarmsystem

Radio,telephone,on-boardcomputer,navigation

Windshieldwiper andwashersystem

Lights, lamps,switchesexterior

Lights, lamps,switchesinterior,theft protection

Group 9: Circuit diagrams

Wiring(upto and includingthe '99 model)

Group 9: Circuit diagrams

Wiring(fromthe '00 model)

Overview of repair groups

Printed in Germany -35, October 1999

REPGRU.CHP

www.WorkshopManuals.co.uk

911 Carrera (996) Contents

8Air

Air conditioning

Technicaldatafor the air-conditioningsystem 1

802319 80 -1

Heating

Removingandinstallingheatexchanger

851019

851519

851106

8530 19

85 78 19

85 10 19

Ventilation

Removing and installing mechanical heating / fresh air control. ..

Removing and installing heating / fresh air unit.Installing and adjusting bowden cables of the heating/fresh air control

Removing and installing heater/fresh-air blower motor.Removing and installing drive motor for fresh-air/recirculation valve.

Removing and installing bulb for rotary blower switch.

8703

8703 17

8783 19

87 55 19

8734 19

87 70 19

870119

87 50 19

87 27 19

8720 19

87 59 19

8782 19

87 58 19

87 78 19

875319

8769 19

8702 19

87 34 19

87.

87-

87.

87-

87.

87-

87.

87-

87.

87-

87.

87-

Air conditioning

Safety regulations when handling refrigerant R 134aAssembly work on the air-conditioning system.Setpoints for pressures and temperatures.Removing and installing pressure switch for the air-conditioning system

Removing and installing fluid tank.Removing and installing the compressor.Removing and installing the expansion valve.Removing and installing the heatingjair-conditioning unit.Removing and installing the condenser.Removing and installing the magnetic coupling.Removing and installing drive motors of the heater/air-conditioning unit

Removing and installing drive motor for fresh-air/recirculation valve. .

Removing and installing outside temperature sensor.Removing and installing interior temperature sensor.Removing and installing footwell blower outlet sensor.Removing and installing blower driver.Removing and installing fan for condenser.Removing and installing ballast resistor for fan motor.Removing and installing the heatingjair-conditioning control.Removing and installing compressor -GT3

8 Air conditioning

Printed in Germany -25, 1999 996TOC

7,11

.31

35.37

.43

.47

.49

.51

www.WorkshopManuals.co.uk

911 Carrera (996) Air conditioning

8Technical data for the air-conditioning system

Compressor type 7 58 16

Refrigerantquantity 900 g refrigerant R 134a

195:t 15 cm3NO8

Refrigerantoil inthe compressor

Hexagon-head bolts on Thread Tightening torque in Nm (ftlb.)

Tightening torques:

Expansionvalve M6 9 (6.5ftlb.:

M5 6 (4.5 ftlb

Compressor M8 23 (17ftlb.

M8 23 (17ftlb.)

Refrigerantline

M10 26...36(19...27ftlb.)

Oilfiller screw

Fluidtank M6 6 (4.5ftlb

M8 14(10.5ftlb.:

Flangeconnections

ofthe refrigerantlines

Note

Wheninstallingthe refrigerantlines,the screwconnectionsandthe a-rings mustbe wetted

with refrigerantoil.

The refrigerant oil must be disposed of as special-category waste.

.8 -1

8 Technical data for the air-conditioning system

Printed in Germany -5, 1997 9968_1

www.WorkshopManuals.co.uk

Heating

Boxster

80 23 19 Removing and installing heat exchanger

Removal

1. Removethe covers overthe heating/air-con-

ditioningsystem, battery andfluidtank. Dis-

connectthe battery andcover the terminalor

battery.

6. Releaseheatexchangerandpullitupandout.

/'I

2. Removethe entirewiper linkwith wiper motor

(seeRepairGroup92). ..0:::::;;

~;;." =_J {\

~ =I

3. Loosenrightdomestrutandbracketatthe

cowlframeandremove. 0-=I

~\~

;

\:"" \'\

""'

288 -96

\Installation

1. Sealcoveroverthe heatexchangerairtight

with butyladhesive.

-I , ~

~ \ 2. Replacecover ifdamaged.

3. The heatexchangeris connectedto the

enginecooling system,and coolantflows

through it whenthe engineis running.After re-

movingor installingthe heatexchanger,vent

the coolingsystem(seeRepairGroup19).

90.97

4. Clamp shutboth heater hosesin front of the

heatexchangerwith a commerciallyavailable

hoseclamp. Loosenheaterhoses at the heat

exchangerandpulloff.

5. Carefullyremovecover overthe heatex-

changer.

80 -1

80 23 19 Removing and installing heat exchanger

Printed in Germany, 1996 986801

www.WorkshopManuals.co.uk

911 Carrera (996) Ventilation

85 10 19 Removingand installing mechanical heating and fresh-air control

Removal

1. Carefullyunclipbafflefromtheheatingand

fresh-aircontrol.

Installation

1. Clipin Bowdencablesandroute carefully

(do notbend).

2. Unscrewfastening screws(4 ea.)andpullcon-

trol moduleout ofthe dashboard. 2. Engageelectricalplug connections:do not

jam cables.

3. Pulloff electrical plug connections.

UnclipBowdencablesandpull outupwardsor

detachcables. LabelBowdencablesbefore

removal.

289 -98

85 10 19 Removing and installing mechanical heating and fresh-air control

Printed in Germany, 1997 996851

85 -1

www.WorkshopManuals.co.uk

911 Carrera (996) Ventilation

85 15 19 Removingand installing heating and fresh-air control

Removal

1. Removethe covers overthe heating/fresh-air

system,batteryandfluidtank. Disconnectand

removethe battery.

4. Looseninstrumentpanelanduncliprightside

upwards.Disconnectthe electricalplug corr

nections.

2. Removesteeringwheelandloosensteering-

columnpanel.Complywith safetyregulations

whenhandlingairbag units(seeRepairGroup

69).

3. Undothe central screw (clamp)onthe stee-

ring columnswitchfrom belowandpull it

forwardsslightly. Removethe cover atthe top

and disconnectthe electricalplug connecti-

ons. Removethe steeringcolumnswitch.

92.97

5. Removesteering-columncover (4screws).

107 -96

46.97

85 15 19 Removing and installing heating and fresh-air control

Printed in Germany, 1997 996851

85 -3

www.WorkshopManuals.co.uk

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