Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Recalls
- Customer Interest
- Labor/Parts Updates
- Seals, Gaskets
- Superceded Bulletins
- All Technical Service Bulletins
- Drivetrain - Drive Shaft Grease Incorrectly Labeled
- Vehicle - Use Only Approved Parts For Collision Repairs
- 49005 - 05/08/90
- 18801 - 02/12/88
- Parts Designation - Turbo Versus Non-Turbo
- Warranty - Pre-Owned Program Changed
- Tools - Quick Scope Plus
- Tools - Auto Scopemeter & Engine Analyzer
- Vehicle - Operater Guidelines for Storage
- Technical Information (Advanced) - 23rd Supplement
- Overview
- 928 M.Y. 1985/86 Flywheel/Ignition Timing-Performance Problems
- 924S, 944, 944S M.Y. 1988 Crankcase Ventilation Heater
- 928 S4 M.Y. 1988 Engine Oil Level Checking System -- Modified
- 944 Engine Performance - to Determine Cause of Problem
- 928/928 S4 Ignition Trigger Control Heat Conducting Paste
- 911 Turbo M.Y. 1986 Ignition Delay Relay - Modified
- 911 Turbo M.Y. 1986 Acceleration/Enrichment Relay - Modified
- 924 Turbo M.Y. '81/'82 Ignition Control Unit - Pressure Line
- 911 Carreara M.Y. 1987 DME Control Unit Modified
- 911 Turbo M.Y. 1987 Acceleration - Enrichment Relay - Modified
- 944S, 944T M.Y. 1988 DME Control Unit: Modified
- 944S, 944T Knock Sensor - Modified
- 928 S4 M.Y. '87 - '89 Battery - Modified
- 928 S4 M.Y. '89 TDC Sending Unit - Deleted
- 911C2/4 *Reduced Engine Broking Effect
- 911 Carrera M.Y. 1984 Trans Mainshaft Bearing Loose
- 944 Transmission/Drive Train Noise
- Carrera 2/4 *Additional Shifter Boot Installed
- 911 Carrera M.Y. 1987 Rear Stabilize BAR - Modified
- 944, 944S 944T M.Y. 1988 With M-593 ABS - Modified
- 911 Carrera 911 Turbo M.Y. '88 Hand Brake Shoes - Modified
- 944, 944S, 944 S2, 944T, 928, 928S 928 S4, 928 GT P.S. Belt Tension
- 911 Carrera Door Lock/Tumbler Set - Replacements
- 928S Front Hood - Height Adjustment
- 944 Front Fender - Modified
- 944, 944T M.Y. '89 Rear Lid Modified
- 911 C 2/4 *Door Contact Switch Modified
- 911 Carrera M.Y. 1985 Electric Window Winder Relay - Relocated
- 911 Carrera M.Y. 1985 Mirror Switch and Window Heater
- 911 Cabrio M.Y. '86 - '89 Convertible Locking Motors - Modified
- 911 C2/4 *Tonneau Cover Strap Fasteners Installed
- 944, 944 Turbo M.Y. '86 Seat Back Unlocking Knob - Installation Procedure
- 944, 944T M.Y. '89 A/C High and Low Pressure Switch Modified
- 924 Turbo M.Y. 1981 Tachometer - Supersession
- 911 Carrera 911 Turbo M.Y. 1988 Luggage Compartment Wiring Harness
- 928 S4 Securing of Battery Ground Cable - Modified
- 928 S4 911/T M.Y. '88 Alarm System - Modified
- 928 S4 All 4 CYL. M.Y. 1988 Windshield Wiper Relay - Modified
- 928S/928 S4 M.Y. '86, '87, '88 Modified Rear Lid Motor
- 911 Carrera 911 Turbo 928 S4 Spare Paint Deleted
- Tools - Tester 9268 Cable Connection Precautions
- Warranty - Special Colored Mailing Envelopes
- Warranty - Roadside Assistance Rental Car Authorization
- Warranty - Revised Page for Customer Assistance Policy
- Warranty - Recall and Service Action Reminders
- Warranty - Payment Advisory Report
- Tools - Modules for Bosch Tester 9288
- Warranty - Engine Follow Up Service After Major Repairs
- Electrical Harnesses - Routing and Securing
- VIN, Certification, & Emission Label - Availability
- Vehicle - Approximate Oil/Fluid Capacities Chart
- Tools - Minimum Requirement Listing
- Warranty - Access Start Dates and Recall Inquiry
- Technical Information Books - Available Stock Listing
- Techincal Information Booklets - Current Availability
- Warranty - Parts Submission Policy
- Warranty - Claim Processing Specialist Reassignment
- Vehicle - Storage Information
- Microfiche - New Issues and Table of Contents
- Parts Marking - Law/Policy
- Warranty - Microfiche Tips, Types of Labor Time
- Vehicle - Mileage Maintenance Requirements
- Overview
- Model 911, 911 Turbo
- Model 928 S4
- Model 944, 944S, 944 Turbo, 924S
- 1000 Mile Maintenance Service
- 7,500, 22,500, 37,500 Miles, Etc. Maintenance Service Turbo Engines Only
- 15,000, 45,000, 75,000 Mile Maintenance Service
- 30,000 60,000 90,000 Mile Maintenance Service
- Warranty - Policy Revision
- Warranty - Policy and Procedures Manual
- Warranty - Improper Modifications to Electrical System
- Warranty - Current Bulletins
- Tools - Testers for Alarms, Central Warning, & Air Bag
- Air Regulation Controls - Modified
- A/C - Revised Sealing Rings for Expansion Valves
- A/C Refrigerant - General Recovery & Recycling Tips
- A/C - Substitutes for R-12 Refrigerant
- A/C Refrigerant - Identifier
- A/C - Retrofitting R12 Systems to R134
- A/C - Refrigerant 134a Use
- Power Steering - New Procedures Working on Pumps/Racks
- A/T - Correct 2ND Gear Brake Piston Rod Length
- Oil Pump/Crankcase Sealing Surface - Alignment
- Camshaft Drive Belts - Recommended Usage
- Connecting Rod Nuts - Incorrectly Made
- Cylinder Wall - Preparation
- Toothed Drive Belts - Diagnosing Condition
- Exhaust Valves/Stem Seals - Seized
- Mechanical Tensioner - Material Changed
- Oil Cooler O-Rings/Pressure Testing Cooler - Revised
- Engine - Oil In the Cooling System
- Poly Rib Belt - Part Number Invalid
- Poly Rib Belt - Tensioning Procedure
- Poly Rib Pulley Bolts & Washers - Revised
- Camshaft Drive Belt - Failure
- Oil Pressure Reducing/Relief Valve - Replacement
- Tools - Oil Cooler Testing
- Oil Pan - Sealing
- Cylinder Heads - Tightening Procedure & Service Changes
- Timing Belt Cover - Ventilation System Change
- Toothed Engine Belts - Storage, Packing and Handling
- Valve Seal - Replacement Procedure
- Tools - Rebuilt and Exchange Program for Tools
- VIN Plate, Certification & Emission Label - Availability
- VIN, Certification & Emission Labels - Availability
- Engine - High Temperature Gauge Readings
- Cooling System - Approved Phosphate Free Anti-Freeze
- Electrical System - Poor Pin/Ground Lug Connections
- Power Steering Pump - Flush Hoses After Replacing
- Brake Pad - Installation Hardware Ordered Separately
- Brake Pad Retaining Pin Lock - Changed
- Brake Pads - Available Without Asbestos
- Brakes - Objectionable Noise
- Front Brake Pads - Changed
- Spark Plugs - Install With Threads Clean and Dry
- Spark Plugs - Revised Plugs and Tightening Torque
- A/C Compressor - Survey
- Tools - Compressor Seal Replacement
- Front Brakes - Groaning Type Noise
- Strut Mount - Revised With Additional Washer
- Power Steering Gear - Diagnosis
- Connecting Rod - Modified to Thin Shank Cast
- Camshaft Belt - Adjustment
- Cam Belt - Only Revised Part is Recommended for Use
- Cam Belt Tensioner Roller - Noise
- Camshaft Drive - Replaced Parts Upon Belt Failure
- Cylinder Heads - Machining and Using Correct Gaskets
- Cylinder Head - Revised Torque Value and Procedure
- Coolant Pump - Leaks
- Cooling Fan Motor - Correct Positioning
- Shock Absorbers - Part Identifier Chart
- Wheels - Modifying 16 Inch Wheel to 17 Inch Wheel
- Wheels - Unapproved Installation of 18 Inch Wheels
- Tires/Wheels - Summer Tires Wheel Rim Summary
- Tires/Wheels - Summer Recommendations
- Tools - Special Wheel Balancing Adapter
- Wheels - Non Approval of Chrome Plating Aluminum Wheels
- Wheels - Retrofitting Unapproved 18 Inch Wheels
- Tire/Wheel Rim - Latest Winter Recommendations
- Wheels - Specific Application to 944 Turbo S
- Wheel/Tire - General Information
- Tires/Wheels - Winter Tire/Wheel Rim Summary
- Tires/Wheels - Installing Approved 17 Inch Wheels
- Goodyear Tires - WIthout `NO' Designation Not Approved
- Tires - Manufacturer Contact Information
- Tires (VR-Rated Summer ) - Do Not Mix With ZR Rated
- Tires - Winter Tire Summary Supplement
- Gas Cap Lock - Modifying
- Leather Upholstery - Reconditioning
- Lifting Roof - Modification
- Rubber Clutch Hub - Determining Damage
- Clutch Disc - Measuring the Lining Thickness
- M/T - Different (RO) Value for Pinion Depth
- Hydraulic Clutch - Pedal Stays Down/Air In the System
- DME/LH Control Unit - Adaption if Battery Disconnected
- Brake Calipers - Modified Piston and Dust Seals
- Brakes - Lubricate During Repair for Brake Pulling
- Battery - Diagnosing a Discharging Condition
- Battery - Revised With Vent Hose
- Starter Solenoid - Troubleshooting and Replacing
- Recall - Replacement of Fuel Hose/Rail
- Polyamide Fuel Lines - Handling
- Exhaust System - Sulfur Like Smell
- Tools - Radio/CD Player Removal
- Telephone - Installation and Operation
- Airbag Impact Sensors - Revised
- Fuse 11 - Blown
- Brakes - Pedal Pulsation/Vibration
- Fuel/Ignition Modules - Use of Aftermarket Microchips
- Wiper Motor Cover - Revised
- Wiper Motor Hole (In the Rear Hatch Glass) - Changed
- Stabilizer Bar - Modification
- Steering Wheel - Noise When Turning
- Recall - Defective A-Arm
- Windshield Washer Tank - Fluid Loss From Drain Cap
- Paint - Manual Supplements
- Tools - Celette Collision Repair Systems
- Air Bag - Notice of Deployment & Service Information
- Air Bag - Notification of Deployment & Service
- Air Bag - Scheduled Maintenance
- Vehicle Security Codes - Requesting
- Rear Lid Latch Assembly - Water Entry
- CO Sample Pipe - Material and Mounting Change
- Control Unit - Parts, Coding/Adapter Plug, O2 Sensor
- Engine Controls - Diagnosis With Tester 9268
- Wiper Blades - Correct Application
- Third Stoplight Mounting Frame - Installation
- Windshield Cement - Mixing
- Windshield - Revised Mounting Spacer
- Windshield - Water Leaks
- Fender (Rear) - Replacement
- Cylinder Head - Coolant Loss/Coolant in Oil
- Engine Lubrication - Oils That Minimize Carbon Build-Up
- Engine - Motor Oils That Minimize Carbon Build-Up
- Engine - Approved Engine Oils
- Engine - Porsche Approved Oils
- Power Steering Pressure Hose - Touches Oil Pan
- A/T - ATF Loss From Housing Vent
- A/T - Engine Vacuum Testing
- A/T - How To Use A Pressure Gauge
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - Choosing the Right ATF
- M/T - Synchronizing Ring Diagnosing Failures
- Clutch - Lubrication of Parts During Service
- M/T - Recommended Oil
- Engine Mount - Revised, Installation and Checking
- Transmission Fluids - Specifications
- Engine - Misfire
- Oil Cooler Return Hose - Chafe On Stabilizer Bar
- Brake Vibration Damper - New Application Information
- Camshaft - Basic Setting
- Vehicle - Year 2000 Hardware/Software Readiness
- Recall 90V061000: Defective Fuel Hose
- Cruise Control System - Troubleshooting
- Tools - Wheel Alignment Equipment
- Wheels/Tires - Winter - Tires/Wheels/Snow Chains
- CV Joint - New Grease
- Radios/CD Players - Obtaining & Entering Security Codes
- Engine - Oil Pressure Too High
- Leather Interior - Paint Used for Cosmetic Repairs
- Cam Housing Gasket - Installation
- Hand Brake Shoe Retaining System - Correct Installation
- A/C - Use of Correct Refrigerant
- Brakes - Squeaks May Be Normal Performance
- A/C - Refrigerent Oil Volume Capacities
- Engine - Approved Engine Oils Overview
- Tires - Summer Tire Summary
- Engine - Approved Porsche A40 Engine Oils
- Tires/Wheels - Handling Instructions After Damaged
- Engine - Approved Engine Oil Specification
- Computers/Controls - Component Diagnosis