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- Superceded Bulletins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
- Warranty - Pre-Owned Program Changed
- Tools - Quick Scope Plus
- Tools - Auto Scopemeter & Engine Analyzer
- 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 - Minimum Requirement for Vehicle Repairs
- Warranty - Special Colored Mailing Envelopes
- Warranty - Roadside Assistance Rental Car Authorization
- Tools - Modules for Bosch Tester 9288
- Warranty - Engine Follow Up Service After Major Repairs
- Wiring Diagram - Update
- Electrical Harnesses - Routing and Securing
- VIN, Certification, & Emission Label - Availability
- Outside Temperature Instrument and Sensor - Diagnosis
- Fuel Level Gauge Sender - Replacement/Checking
- Campaign - Rear Heater Blower Resistor Replacement
- 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 - Close Out of Repair Transactions
- Parts Marking - Law/Policy
- Warranty - Microfiche Tips, Types of Labor Time
- Vehicle - Required Maintenance
- Overview
- Maintenance Service
- 2000, 2500, 7500, 22000, 37500 Miles Maintenance Service
- 15,000, 45,000, 75,000 Miles Maintenance Service
- 30,000, 60,000, 90,000 Mile Maintenance Service
- Requirements Information
- Warranty - Revision of the Policy & Procedure Manual
- Warranty - Improper Modifications to Electrical System
- Warranty - Current Bulletins
- Tools - Testers for Alarms, Central Warning, & Air Bag
- A/C - Capacities Update
- Heater Fan Fuse - Required in the Engine Compartment
- Rear Heater Fan - Modified
- Rear Blower Motor - Does Not Function
- 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
- Recall 93V204000: Rear Heater Resister Defect
- A/C Hoses - Contact Ventilation Screen
- Climate Control - Unnecessary Replacement of Parts
- Power Steering - New Procedures Working on Pumps/Racks
- Starter - Poor Engagement
- Front Wheel Drive - Do Not Drive While Disconnected
- Tools - Gear Puller for G50 and G64 Transmissions
- Sodium Filled Valves - Scrapping Instructions
- Crankcase - Oil Leaks from Cast-on Oil Pipe
- Connecting Rod Nut - Revised Torque Procedure
- Oil Filters - Unnecessary Perforation of When Removing
- Valve Guide - Checking Procedure
- Engine Crankcase - Standard Replacement Parts
- VIN Plate, Certification & Emission Label - Availability
- VIN, Certification & Emission Labels - Availability
- Cooling Fan - Noisy
- Battery - Discharged Unit Diagnosis
- Electrical System - Poor Pin/Ground Lug Connections
- Power Steering Pump - Flush Hoses After Replacing
- Brake Pads - Available Without Asbestos
- Brakes - Objectionable Noise
- Front Brake Pads - Revised
- Valve Seat - Checking Depth
- Spark Plug & Connector - Removal
- Spark Plug - Replacement Intervals
- Spark Plugs - Install With Threads Clean and Dry
- A/C Compressor - Warranty Return Procedures
- Tools - Compressor Seal Replacement
- A/C - Refrigerant Loss from Expansion Valve Connections
- Power Steering Gear - Diagnosis
- Cylinder Head Ceramic Liners - Cracks or Breaks
- Cylinder Head - Correct Torque Specification
- Cylinder Heads - Refacing Information
- Tools - Refacing Cylinder Heads Using Tool (9526)
- Engine Cooling Fan Hub - Available as Separate Part
- Wheels - Unapproved Installation of 18 Inch Wheels
- Tires/Wheels - Summer Recommendations
- Tools - Special Wheel Balancing Adapter
- Wheels - Non Approval of Chrome Plating Aluminum Wheels
- Wheels - Approved 17 Inch Wheels
- Wheels - Retrofitting Unapproved 18 Inch Wheels
- Tire/Wheel Rim - Latest Winter Recommendations
- Tires/Wheels - Winter Tire/Wheel Rim Summary
- Tires - Manufacturer Contact Information
- Tires (VR-Rated Summer ) - Do Not Mix With ZR Rated
- Rear Spoiler Control Unit - Revised, Manual Operation
- Spoiler Motor Cable Cap - Water Entry
- Central Locking/Spoiler Control Unit - Location Changed
- Rear Spoiler Drive Gear Mounting Screws - Loosening
- Seat Heating Wiring Diagram - Update
- Leather Upholstery - Reconditioning
- Window Lift Relay - Installed With Seat Heating
- Sunroof - Rattles While Open
- Recall 96V147000: Steering Noise & Excessive Freeplay
- Clutch Release Lever Shaft Bearings - Modified
- Clutch Release Bearing & Guide Sleeve - Revised
- Clutch Pedal - Clatter
- Clutch Pedal - Adjustment Procedures
- Cruise Control - Inoperative
- Engine - Erratic Idle, Loss of Power, or Stalling
- Brake Fluid Reservoir - Revised Venting
- ABS Brakes - Hydraulic Pump, Supply Line Overheating
- Battery - Diagnosing a Discharging Condition
- Battery - Revised With 70 Ah Rating
- Alarm System - Activates Intermittently, Dead Battery
- Ignition Distributor - Install Ventilation When Serviced
- Oil Cooler Fan - Updated Ballast Resistor
- Recall 91V103000: Fuel Line Damage
- Filler Pipe - Fuel Odor
- Fuel Tank - Replacement Information
- Exhaust System - Sulfur Like Smell
- Electric Seat - Jammed in Backward Stop Position
- Radio - Discharged Battery/Alarm System Malfunction
- Cellular Phone (Fujitsu) - Installation
- Telephone - Installation and Operation
- Seat Belt Bolt Cover - Deformed
- Brakes - Pedal Pulsation/Vibration
- Ignition Cables - Chafe on Ground Strap, and MIL ON
- Fuel/Ignition Modules - Use of Aftermarket Microchips
- Horn Buttons - Repairing On Vehicles WIth Air Bags
- Camshaft Housing Covers - Additional Aluminum Washer
- Crankshaft Pulley - Excessive Run-Out After Installation
- Tools - Coupler to Use With ABS II System Tester
- Steering Wheel - Noise When Turning
- Dashboard Cover - Deformed
- Rear Side Panel - Cracks
- Fenders (Front) - Detach Tack-Welds When Removing
- Cabrio Top - Water Leaks
- Paint - Manual Supplements
- Tools - Celette Collision Repair Systems
- Air Bag - Scheduled Maintenance
- Radio - Alarm Contact Installation With Replacement
- Radio - Alarm Contact Insulator When Replacing
- Central Locking and Alarm - Water Ingress
- Vehicle Security Codes - Requesting
- Heat Shield Mounting Bolts - Seized
- Muffler Mounting Bolt - Loose or Broken
- Muffler Carrier Plate/Bolt - Loose or Broken
- Recall 91V012000: Hood Safety Latch Improvement
- Doors and Hinge Pillar - Modifications
- Tools - Converting Release Lever Shaft Bearings
- Door Panel - Air Leak
- Windshield Cement - Mixing
- Windshield Frame - Modification
- Body - Windshield Replacement Parts/Installation
- Vent Window Frame Support - Breakage
- Storage Box - Installation
- Engine Lubrication - Oils That Minimize Carbon Build-Up
- Engine - Motor Oils That Minimize Carbon Build-Up
- Engine - Approved Engine Oils
- Engine - Porsche Approved Oils
- Tenax Snaps - Opening and Securing
- Folding Top - Opening and Closing
- A/T - Tiptronic Product Report
- Warranty - Tiptronic Transmission Repair Limitations
- 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 - Second Gear Paint Dot Markings
- Transmission Fluids - Specifications
- Recall 92V142000: Cruise Control Ball Sockets Revised
- A/C Condenser Fan - Updated Ballast Resistor
- Fuse - Ratings Have Been Revised
- Engine Performance - Poor or Intermittent Loss of Power
- Vehicle - Year 2000 Hardware/Software Readiness
- Engine - Cleaning of Oil Circuits
- Cruise Control System - Troubleshooting
- Alignment - Caster Adjustment Values
- Front Wheel Seals - Squeaking or Whistling Noise
- Warranty - First Alignment & Convertible Top Checks
- Tools - Wheel Alignment Equipment
- Alignment - Revised Specifications
- Wheels/Tires - Winter Wheels/Tires/Snow Chains
- Clutch - Does Not Disengage Fully
- CV Joint - New Grease
- Front Trunk Carpet - Damage
- Radios/CD Players - Obtaining & Entering Security Codes
- Cylinder Head Studs - Installation Precautions
- Hand Brake Shoe Retaining System - Correct Installation
- Seat Rail - Adjusting For More Leg Room
- A/C - Use of Correct Refrigerant
- Steering Gear - New Type Oil
- Brakes - Squeaks May Be Normal Performance
- A/C - Refrigerent Oil Volume Capacities
- Engine - Approved Engine Oils Overview
- Lighting - Center Mounted Brake Lamp Retrofitting
- Tires - Summer Tire Summary
- Tires - Summary Of Summer Tires
- Wheels/Tires - Summer Wheels/Tires & Spacers
- Engine - Approved Porsche A40 Engine Oils
- Tires/Wheels - Handling Instructions After Damaged
- Engine - Approved Engine Oil Specification
- Computers/Controls - Component Diagnosis