PORSCHE 996.1 (1997-2001) -  WORKSHOP MANUAL
- English Service Manual, Wiring Diagram and Spare Parts Catalogue to vehicles Porsche 996 1997 to 2001.
CONTENTS:
WORKSHOP MANUAL 1999 (3153 pages)
GROUP 0 GENERAL 
996 WORKSHOP 
Entire Vehicle - General 
General 
Technical Data 
Lifting the vehicle 
Power unit 
Transmission 
Running Gear 
Body 
Electrics 
Power supply - general (work instructions after disconnecting the battery) 
Technical data - GT3 
Sales Check 
Deactivating the transport lock 
Activating the parking aid 
Fitting front lip - GT3 
Fitting roll-over bar (cage) - GT3 
Fitting six-point seat belt - GT3 
Removing transport lock (spring strut locking devices) - Carrera and GT3 
Maintenance 
Maintenance schedule 
Maintenance 
Maintenance - GT3 
Diagnosis, Part 1 (up to Repair Group 45) 
General 
Installation location, diagnositc socket 
Operating instructions, Porsche System Tester 2 
DME 
System M 11 
Programming DME control module 
Tiptronic 
System G 50 
Anti-lock brake system diagnosis 
System PSM 5.3 and ABS/TC 5.3 
PSM 
System PSM 04 
System PSM 05XX 
Diagnosis, Part 2 (as of Repair Group 61) 
Convertible-top diagnosis 
System B 3.2 
Airbag Diagnosis 
System B 04 
Airbag Diagnosis 
System B 05 
Roll-over protection system diagnosis 
System UEB11 
Seat memory diagnosis 
System S 01 
Heating diagnosis 
System H 01 
Alarm system diagnosis 
System I 32 
Instrument cluster diagnosis 
System K 0X 
PCM diagnosis 
System N 01 
ParkAssistent diagnosis 
System P 01 
Headlight beam adjustment diagnosis 
System HBA 01 
Engine, Part 1 (up to Repair Group 13) 
Engine 
Tightening torques for engines M96/01 
3.4 l engine performance kit / X51 
Engine - Crankcase, suspension 
Removing and installing engine (vehicle with Tiptronic transmission) 
Disassembling and assembling engine 
Disassembling and assembling crankcase halves 
Removing and installing engine - GT3 
Disassembling and assembling engine - GT3 
Disassembling and assembling crankcase - GT3 
Removing cylinder - GT3 
Engine - Crankshaft, pistons 
Removing and installing drive belt 
Removing and installing deflection rollers for drive belt 
Removing and installing tensioning roller for drive belt 
Removing and installing belt tensioner 
Disassembling and assembling belt tensioner 
Disassembling and assembling bearing housing with crankshaft 
Removing and installing crankshaft sealing ring 
Removing and installing crankshaft sealing ring - engine installed 
Removing and installing pistons 
Removing and installing drive belt - GT3 
Disassembling and assembling belt tensioner - GT3 
Disassembling and assembling crankshaft - GT3 
Removing and installing pistons - GT3 
Installing pistons - GT3 
Installing piston pin with piston-pin circlip - GT3 
Engine, Part 2 (as of Repair Group 15) 
Engine - Cylinder head, valve drive 
Diasassembling and assembling cylinder head - Inner parts 
Removing and installing valve springs 
Removing and installing valve stem seal 
Installing cylinder head 
Disassembling and assembling cylinder head - Camshaft drive 
Removing and installing camshafts 
Installing camshafts 
Adjusting timing - cylinder bank 1 - 3 
Adjusting timing - cylinder bank 4 - 6 
Removing and installing valve tappets - engine removed 
Removing valve tappets of cylinder bank 1 - 3 
Installing valve tappets - Cylinder bank 1 - 3 
Removing valve tappets of cylinder bank 4 - 6 
Installing valve tappets - Cylinder bank 4 - 6 
Completing camshafts 
Sealing cover for camshaft housing (cylinder head cover) 
Checking guide for valve tappets 
Removing and installing oil protection tube (engine installed) 
Removing and installing valve tappets (engine installed) 
Removing valve tappets of the cylinder bank 1 - 3 (engine installed) 
Installing valve tappets of the cylinder bank 1 - 3 (engine installed) 
Adjusting timing of cylinder bank 1 - 3 (engine installed) 
Removing valve tappets of the cylinder bank 4 - 6 (engine installed) 
Installing valve tappets of the cylinder bank 4 - 6 (engine installed) 
Adjusting timing of cylinder bank 4 - 6 (engine installed) 
Removing and installing closure cap for camshaft bore (engine installed) 
Checking camshaft (timing) (engine installed) 
Removing and installing sealing ring for intermidiate shaft (engine installed) 
Removing and installing solenoid hydraulic valve 
Reworking cylinder head 
Removing and installing camshaft housing - GT3 
Removing camshaft housing - GT3 
Installing camshaft housing - GT3 
Removing and installing cylinder head - GT3 
Removing cylinder head - GT3 
Installing cylinder head - GT3 
Disassembling and assembling intermediate shaft - GT3 
Engine - Lubrication 
Removing and installing air/oil separator 
Removing and installing oil pump with coolant guide housing 
Removing and installing oil extraction pumps 
Removing and installing oil extraction pump (engine installed) 
Removing and installing oil-water heat exhanger - Engine installed 
Removing and installing oil pan (engine installed) 
Removing and installing oil filler neck 
Removing oil extraction pump - GT3 
Disassembling and assembling oil extraction pump -GT3 
Installing oil extraction pump - GT3 
Removing and installing oil cooler - GT3 
Removing and installing bracket for oil cooler - GT3 
Removing bracket for oil cooler - GT3 
Installing bracket for oil cooler - GT3 
Removing and Installing oil temperature sensor - GT3 
Engine - Cooling 
Draining and topping up with coolant 
Removing and installing coolant regulator 
Removing and installing cooling pump 
Coolant warning light in instrument cluster 
Removing coolant pump (engine installed) - GT3 
Installing coolant pump (engine installed) - GT3 
Removing and installing coolant regulator - GT3 
Removing and installing housing for coolant guide - GT3 
Removing housing for coolant guide - GT3 
Installing housing for coolant guide - GT3 
Removing and installing temperature sensor for coolant - GT3 
Oil/coolant mixing 
Checking the cooling system for leaks 
Removing and installing coolant hoses - GT3 
Removing coolant hoses 
Installing coolant hoses 
Tightening torques 
Fuel, exhaust, engine electronics 
Fuel supply, control 
Checking fuel pressure 
Checking quantity delivered by fuel pump 
Removing and installing fuel pump 
Calibrating fuel level sensor system 
Removing and installing fuel filler neck 
Removing and installing fuel tank 
Calibrating fuel level sensor system - GT3 
Fuel system, electronic injection 
Disassembling and assembling fuel ring pipe 
Disassembling and assembling intake distributor 
Programming DME control module 
Disassembling and assembling intake distributor - GT3 
Exhaust system 
Removing and installing exhaust system - GT3 
Removing exhaust system - GT3 
Installing exhaust system - GT3 
Removing and installing catalytic converters (engine installed) 
Starter, power supply, cruise control 
Removing and installing starter 
Removing and installing three-phase generator 
Removing and installing cruise control actuator 
Removing and installing starter - GT3 
Removing and installing three-phase generator - GT3 
Removing and installing bracket for oil generator - GT3 
Work instructions after disconnecting the battery 
Ignition system 
Removing and installing ignition switch 
Removing spark plugs - GT3 
Installing spark plugs - GT3 
Transmission, manual transmission 
911 Carrera (996) 
Transmission 
Technical data 
6-Speed manual transmission G96/30 
Manual transmission tightening torques 
Front wheel drive Z96.00 
Front-axle drive tightening torques 
Clutch, control 
Removing and installing clutch 
Disassembling and assembling clutch 
Bleeding the clutch system 
Removing and installing clutch slave cylinder 
Removing and installing clutch pedal 
Clutch boost spring: allocation and grease specification 
Removing and installing release bearing - GT3 
Manual transmission - Actuation, ass. housing 
Changing transmission oil 
Removing and installing transmission G 96 
Removing and installing the shift console 
Removing and installing shift and selector cables 
Removing and installing closure cap for selector force mechanism 
Manual transmission - Gears, shafts, int. gearsh. 
Removing and installing sealing ring for input shaft 
Final drive - Differential, differential lock 
Removing and installing cover for final drive 
Removing and installing sealing ring for halfshaft flange of limited-slip differential 
Removing and installing sealing ring for halfshaft flange of differential 
911 Carrera 4 (996) 
Power Transmission 
Technical data 
Final drive - Differential, differential lock 
Removing and installing front final drive 
Removing and installing cardan shaft 
Removing and installing sealing ring for cardan flange 
Removing and installing viscous clutch 
Checking function of installed viscous clutch 
Removing and installing sealing ring for flanged shaft 
Removing and installing cover for final drive 
Changing oil for final drive 
Removing and installing support for final drive 
Repair 
911 Carrera 4 (996) 
Power Transmission 
Technical data 
Final drive - Differential, differential lock 
Removing and installing front final drive 
Removing and installing cardan shaft 
Removing and installing sealing ring for cardan flange 
Removing and installing viscous clutch 
Checking function of installed viscous clutch 
Removing and installing sealing ring for flanged shaft 
Removing and installing cover for final drive 
Changing oil for final drive 
Removing and installing support for final drive 
911 Carrera (996) GT3 
Power Transmsiion 
Technical data (GT3) 
Manual transmission - Actuation, hausing 
Removing and installing the transmission 
Removing and installing closure cap for selector force mechanism 
Disassembling and assembling transmission 
Disassembling and assembling front transmission cover 
Disassembling and assembling gear housing 
Disassembling and assembling transmission housing 
Manual transmission - Gears, shafts, int. gearsh. 
Removing and installing sealing ring for input shaft 
Disassembling and assembling input shaft 
Removing and installing pinion shaft 
Removing pinion shaft bearing 
Final drive - Differential, differential lock 
Disassembling and assembling GKN differntial lock 
Removing and installing differential lock 
adjusting drive set 
Transmission, automatic transmission 
911 Carrera (996) 
Transmission 
Technical data 
5-speed Tiptronic transmission A96/30 
Tightening torques for Tiptronic transmission 
Front wheel drive Z 96.00 
Front-axle drive tightening torques 
Automatic clutch - Torque converter 
Removing and installing torque converter 
Removing and installing torque-converter sealing ring 
Automatic transmission - Auction, ass. housing 
Removing and installing selector knob 
Adjusting selector lever cable 
Removing and installing selector support 
Removing and installing selector lever cable 
Removing and installing shiftlock solenoid 
Checking and topping up ATF fluid 
Replacing ATF fluid 
Removing and installing ATF filter 
Removing and installing inner oil tube 
Removing and installing multi-function switch 
Removing and installing sealing ring for selector shaft 
Removing and installing tiptronic transmission A 96/00 
Automatic transmission - Gears, control 
Removing and installing hydraulic control unit 
Removing and installing wiring harness 
Removing and installing ATF cooler 
Removing and installing sensor for transmission input speed 
Removing and installing transmission speed sensor 
Removing and installing pressure regulator 
Final drive, differential, differential lock 
Changing and checking transmission oil in final drive 
Removing and installing differential 
Removing and installing sealing ring for short flanged shaft 
Removing and installing long flanged shaft 
Removing and installing sealing ring for long flanged shaft 
Removing and installing final drive/transmission housing double sealing ring 
911 Carrera 4 (996) 
Transmission 
Technical data 
Final drive - Differential, differential lock 
Removing and installing sealing ring for cardan flange 
Running gear 
911 Carrera (996) 
Running gear 
Running gear - Overview: 911 Carrera (996) 
Stabaliser allocation 
Removing spring strut locking devices - Carrera and GT3 
Running gear, general - GT3 
Notes on repair instructions - GT3 
Tests / notes - GT3 
Front wheel suspension, drive shafts 
Tightening torques for front axle 
Removing and installing front spring strut 
Removing and installing front spring strut - GT3 
Disassembling and assembling front spring strut 
Disassembling and assembling front spring strut - GT3 
Removing and installing front wheel bearing 
Installing caster eccentric 
Rear wheel suspension, drive shafts 
Tightening torques for rear axle 
Removing and installing rear spring strut 
Disassembling and assembling rear spring strut 
Disassembling and assembling rear spring strut - GT3 
Removing and installing rear wheel bearing 
Removing and installing rear tie rod (toe control arm) 
Removing and installing rear wheel bearing housing (wheel carrier) 
Removing and installing drive shaft (manual transmission) 
Removing and installing drive shaft (Tiptronic transmission) 
Wheels, tires, suspension alignment 
Wheels and tyres (tyre pressure / mounting wheel on vehicle) 
Adjustment values for suspension alignment 
Alignment cards for Carrera (996) and GT3 
Complete suspension alignment 
Suspension alignment GT3 
General tyre mounting instructions 
Checking rims 
Identifying size for 18-inch Turbo wheels (Technologie wheels) 
Tyre failure/tyre sealant - GT3 
Tyre mounting for critical wheels/tyre pairs 
Anti-Lock Brake System (ABS) 
Important information on ABS 5.3 and ABS/TC 5.3 
ABS 5.3 system description 
ABS/TC 5.3 system description 
Component arrangement (ABS and ABS/TC) 
Function of individual components 
ABS test with Porsche System Tester 2 
Removing and installing front speed sensor 
Removing and installing rear speed sensor 
Brakes - Brake mechanics 
Tightening torques for brake mechanics 
Technical data (brake disc wear limit) 
Technical data (brake disc wear limit) - GT3 
measuring brake pad thickness 
Removing and installing front disc brake pads 
Removing and installing rear disc brake pads 
Adjusting brake push rod 
Checking brake-light switch setting 
Adjusting parking brake shoes 
Removing and installing front brake disc 
Removing and installing rear brake disc 
Removing and installing parking brake shoes 
Measuring lateral runout of front brake discs 
Measuring lateral runout of rear brake discs 
Removing and installing brake pedal 
Brakes - Hydraulics, regulator, booster 
Tightening torques for brake hydraulics 
Bleeding brakes 
Changing brake fluid 
Steering 
Tightening torques for steering 
Test and assembly work on power steering 
Removing and installing steering wheel (airbag) 
Replacing steering system after accident damage 
Removing and installing steering gear 
Plug couplings for steering hydraulics 
Removing and installing lock barrel 
Replacing steering lock 
Removing and installing hydraulic pump 
911 Carrera 4 (996) 
Running gear 
Overview of 911 Carrera 4 running gear 
Notes on repair instructions 
Tests/notes for all-wheel drive 
Stabalizer allocation 
Anti-Lock Brake System (ABS) 
Overview of PSM references 
Calibrating steering angle sensor 
PSM component arrangement 
Brakes - Brake mechanics 
Technical data (brake disc wear dimension) 
Brakes - Hydraulics, regulator, booster 
Bleeding brakes (vehicle with PSM) 
Changing brake fluid (vehicle with PSM) 
Body 
Body - general 
Safety instructions for body repair 
Safety instructions for disassembling components 
Safety instructions for air conditioning 
Safety instructions for fuel tank 
Safety instructions for for paintwork, glass, upholstery, linings 
Safety instructions for airbag system 
Safety instructions for door 
Safety instructions for sliding roof 
Safety instructions for rear spoiler 
Safety instructions for rear window 
Safety instructions for windscreen 
Safety instructions for heat shields 
Safety instructions for cabriolet convertible top 
Safety instructions for roll-over protection system 
Safety instructions for plug location plan (body) 
Safety instructions for water drains (body) 
Safety instructions for welding 
Safety instructions for Teromix-6700 two-component adhesive 
Safety instructions for hydraulic system 
Safety instructions for hardtop 
Safety instructions for belt strap holder 
General information and quality notes 
Electronic control modules 
- Protection against overvoltage 
- Replacing control modules 
Tools and metalworking tools for body repairs 
Straightening systems 
Metalworking tools 
- Electrical equipment 
- Mechanical equipment 
- Compressed-air equipment 
- Welding equipment 
Check dimensions for body repair 
Floor assembly control dimensions for the 996 Carrera model up to model year 2000 
Floor assembly control dimensions for the the GT3 model 
Floor assembly control dimensions for the 996 Carrera model from model year 2001 
Body parts of high-strength steel 
Water drainage plan 
Water drainage plan - Cabriolet 
Check dimensions for body repair - Cabriolet structure 
Plug location plan 
Diagram - body gap dimensions 
Diagram - keys to symbols for welding work 
Resistance spot welding 
Inert-gas arc welding (MAG procedure) 
Gas welding 
Seam seals 
Accessories 
- Front lid 
- Doors 
- Sliding roof panel 
- Rear lid 
Work sequence for accident repair 
Body front 
Removing and installing wheel housing liner 
Removing and installing the wing 
Replacing closing panel 
Cutting out closing panel and front floor panel 
Preparing closing panel and front floor panel for installation and fitting 
Welding in closing panel and front floor panel 
Tools and materials 
Replacing wheel housings and side members (sectional repair) 
Cutting out wheel housings and side member 
Preparing wheel housings and side members for installation and fitting 
Welding in wheel housing and side members 
Replacing wheel housings 
Removing wheel housing, lower shell and outer side member from the body 
Preparing wheel housing, lower shell and outer side member for installation and fitting 
Welding wheel housing, lower shell and outer side members into the body 
Tools and materials 
Cleaning front water drains on Coupe and Cabriolet 
Replacing front wall 
Cutting out front wall 
Preparing front wall for installation and fitting 
Welding in front wall 
Tools and materials 
Replacing front wall - Carrera 4 / GT 3 
Cutting out front wall 
Preparing front wall for installation and fitting 
Welding in front wall 
Tools and materials 
Body centre, roof, frame 
Removing and installing underbody cover 
Repalcing rear centre panel 
Removing and installing deformation element 
Replacing roof 
Disconnecting roof 
Preparation of roof for installation and fitting 
Welding in roof 
Tools and materials 
Replacing lower side member 
Cutting out lower side member 
Preparation for installation of lower side member and fitting 
Welding in lower side member 
Tools and materials 
Replacing lower side member - Cabriolet 
Cutting out lower side member 
Preparation for installation of lower side member and fitting 
Welding lower side memeber 
Tools and materials 
Replacing seat cross member 
Cutting out seat cross member 
Preparation of seat cross member for installation and fitting 
Welding in seat cross member 
Tools and materials 
Body rear 
Removing and installing wheel housing liner 
Cleaning rear water drains on Coupe and Cabriolet 
Replacing side section 
Replacing side section - Cabriolet 
Replacing rear closing panel
AND  MORE....