Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Customer Interest
- Speedometer - Inoperative
- A/C - Noise From Evaporator Housing
- Starting System - Poor Starter Engagement
- Starter - Poor Engagement
- M/T - Hard Shifting of 1ST and 2ND Gears
- Crankcase - Oil Leaks from Cast-on Oil Pipe
- Battery - Discharged
- Cylinder Head Ceramic Liners - Cracks or Breaks
- Door Handle/Door Lock (Outer) - High Operating Effort
- Leather Upholstery - Reconditioning
- Sunroof - Rattles While Open
- Clutch Pedal - Clatter
- Battery - Diagnosing a Discharging Condition
- Overview
- 1. General Information
- 2. Battery Service/General
- 3. Vehicle Delivery Hints (See Delivery Check Sheet)
- 4.0 Replacement Battery (Filled or DRY)
- 5. Discharged Battery
- 6. Battery Voltage Checking
- 7. Starting Capability (Load Test)
- 8. Checking Constant Current Draw ( All Vehicle Types)
- 9. Summary
- Battery Maintenance Log Sheet
- Battery Check Sheet
- Brakes - Pedal Pulsation/Vibration
- Starter Motor/Gear - Damage
- Cabrio Top - Water Leaks
- Muffler Mounting Bolt - Loose or Broken
- Engine Performance - Erratic Running or Stalling
- M/T - Scraping Noise When Operating Clutch
- Rear Window - Scratches in Middle
- Vent Window Frame Support - Breakage
- M/T - Shift Rod Clatter at Idle, Coast or 2500-3500 RPM
- M/T - Jumps Out of 1ST or 2ND Gear
- M/T - Jumps Out of 4TH Gear
- M/T - Noise
- M/T - Noise While Coasting 3000 to 4000 RPM
- Engine Performance - Poor or Intermittent Loss of Power
- Cabriolet Top - Locating Pins Stick/Bind When Opened
- Seat Rail - Adjusting For More Leg Room
- Brakes - Squeaks May Be Normal Performance
- Labor/Parts Updates
- Superceded Bulletins
- 20/07 - 12/21/07
- 91/05 - 07/28/05
- 11/04 - 02/25/04
- 49004 - 02/15/90
- 49006 - 06/22/90
- 68903 - 10/06/89
- 48811 - 12/02/88
- 48705 - 06/05/87
- 49006 - 08/07/90
- 49101 - 01/22/91
- 49104 - 04/09/91
- 9201 - 06/25/92
- 9407 - 02/17/94
- WARR9409 - 09/02/94
- WARR9508 - 01/26/95
- 18712 - 06/03/87
- Warranty Program - Pre-Owned Vehicles
- Hinge Pillars and Doors - Modified
- Alpine CD-2 Radio - Security Code
- Power Steering Racks - Diagnosing & Repairing Leaks
- Brake Caliper - Sliding Lubricant Use During Service
- Wheels (17 Inch Wheels) - Installation
- Tires/Wheels - Winter Rim Recommendations
- Tires/Wheels/Snow Chains - Winter Applications
- Tire Manufacturers - Customer Service Phone Numbers
- Engine - Porsche Approved Engine Oils
- Tires/Wheels/Snow Chains - Winter Application
- Engine - Engine Oils Approved By Porsche
- Engine - Overview Of Approved Engine Oils
- Engine - Approved Engine Oil Specifications
- All Technical Service Bulletins
- Drivetrain - Drive Shaft Grease Incorrectly Labeled
- Vehicle - Use Only Approved Parts For Collision Repairs
- 18801 - 02/12/88
- Warranty - Revised Parts Submission Report Print Cycles
- Tools - Car Protection During Service
- 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
- Warranty - Special Colored Mailing Envelopes
- Warranty - Parts Submission Acknowledgements
- Warranty - Major Unit Replacement Authorization Required
- Warranty - Engine Follow Up Service After Major Repairs
- Central Locking System - Wiring Diagram Update
- Electrical Harnesses - Routing and Securing
- Speedometer - Inoperative
- VIN, Certification, & Emission Label - Availability
- Vehicle - Approximate Oil/Fluid Capacities Chart
- Tools - Minimum Requirement Listing
- Service Publicatons - Additional Bulletins & Microfiche
- Warranty - Access Start Dates and Recall Inquiry
- Technical Information Books - Available Stock Listing
- Technical Bulletin Index
- Techincal Information Booklets - Current Availability
- Literature Bulletins - Valid Listing
- Warranty - Claim Review Procedures
- Microfiche - New Issues and Table of Contents
- Parts Marking - Law/Policy
- Tools - Needed to Perform Certain Vehicle Repairs
- Tools - Needed to Correctly Perform Certain Repairs
- Warranty - Microfiche Tips, Types of Labor Time
- Vehicle - Mileage Maintenance Requirements
- Warranty - Close-Out of 1987 Transactions
- Warranty Policy and Procedures Manual - Revision
- Workshop Manuals - Ordering Information
- Warranty - Improper Modifications to Electrical System
- Warranty - Customer Signature Requirement on RO
- Warranty - 911 Club Sport Version
- Tools - Testers for Alarms, Central Warning, & Air Bag
- A/C - Capacities Update
- A/C - Leakage Survey
- Rear Heater Fan - Modified
- Rear Window Wiper - Installation Update
- Additional Heater Fans - Repairing
- A/C - Revised Sealing Rings for Expansion Valves
- A/C - Noise From Evaporator Housing
- 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
- Starting System - Poor Starter Engagement
- Starter - Poor Engagement
- M/T - Hard Shifting of 1ST and 2ND Gears
- Ambient Air Valve - Rattling Noises
- Chain Tensioner Oil Supply Lines - Modified
- Crankcase - Oil Leaks from Cast-on Oil Pipe
- Cylinder Heads - Tightening Procedure & Service Changes
- Connecting Rod Nut - Revised Torque Procedure
- Oil Filters - Unnecessary Perforation of When Removing
- Valve Guide - Checking Procedure
- VIN Plate, Certification & Emission Label - Availability
- VIN, Certification & Emission Labels - Availability
- Battery - Discharged
- Electrical System - Poor Pin/Ground Lug Connections
- Power Steering Pump - Flush Hoses After Replacing
- Brake Pad - Installation Hardware Ordered Separately
- Brake Pads - Available Without Asbestos
- Front Brake Pads - Revised
- Valve Seat - Checking Depth
- Spark Plug & Connector - Removal
- Spark Plug - Replacement Intervals
- Spark Plugs - Install With Threads Clean and Dry
- Spark Plugs - Revised Plugs and Tightening Torque
- Tools - A/C Compressor Repairs
- A/C Compressor - Survey
- Tools - Compressor Seal Replacement
- Heater Fans - Additional Units Use 10 Amp Fuses
- Power Steering Gear - Diagnosis
- Cylinder Head Ceramic Liners - Cracks or Breaks
- Shock Absorbers - Usage Identification Chart
- 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
- Overview
- Tire Pressures
- Collapsible Spare Tire Information
- Recommended Winter Tires For Porsche 4 CYL. ENG. Cars
- Winter Wheel Rim and Tire Sizes For Porsche 4 CYL. ENG. Cars
- Survey of 4 CYL. Porsche Wheel Rims For Winter Tires
- Recommended Winter Tires For Porsche 6 CYL. ENG. Cars
- Winter Tire/Wheel Rim Summary and Tire Sizes For 6 CYL. ENG. Cars
- Survey of 6 CYL. ENG. Porsche Wheel Rims For Winter Tires
- Recommended Winter Tires For Porsche 8 Cylinder Engine Cars
- Winter Wheel Rim and Tire Sizes For Porsche 8 Cylinder Engine Cars
- Survey of Porsche Wheel Rims For Winter Tires - 928/S/S4/GT
- Wheel Balancing - Service Recommendations
- Wheel/Tire - General Information
- Tires/Wheels - Winter Tire/Wheel Rim Summary
- Tires - Bridgestone RE 71 Tires Approved
- Tires - Goodrich COMP T/A Tires Approval information
- Tires - Manufacturer Contact Information
- Tires (VR-Rated Summer ) - Do Not Mix With ZR Rated
- Rear Spoiler Control Unit - Revised, Manual Operation
- Door Handle/Door Lock (Outer) - High Operating Effort
- Leather Upholstery - Reconditioning
- Seat Back Frames - Repairing
- Lifting Roof Gear - Replacement
- Sunroof - Rattles While Open
- Clutch Release Lever Shaft Bearings - Modified
- Clutch Release Bearing & Guide Sleeve - Revised
- Clutch Pedal - Clatter
- Battery - Check Sheet
- Battery Check Sheets - Documentation
- Battery - Diagnosing a Discharging Condition
- Overview
- 1. General Information
- 2. Battery Service/General
- 3. Vehicle Delivery Hints (See Delivery Check Sheet)
- 4.0 Replacement Battery (Filled or DRY)
- 5. Discharged Battery
- 6. Battery Voltage Checking
- 7. Starting Capability (Load Test)
- 8. Checking Constant Current Draw ( All Vehicle Types)
- 9. Summary
- Battery Maintenance Log Sheet
- Battery Check Sheet
- Battery - Revised With 70 Ah Rating
- Air injection - Pipe Clamp On Additional Air Pump
- Exhaust System - Sulfur Like Smell
- Blaupunkt AM/FM Cassette Radio - Survey
- Radio Serial Number Labels - Availability
- Cellular Phone (Fujitsu) - Installation
- Brakes - Pedal Pulsation/Vibration
- Engine Performance - Tune Up Specifications
- Fuel/Ignition Modules - Use of Aftermarket Microchips
- Starter Motor/Gear - Damage
- Headlight - Adjustment
- Rear Axle Cross Tube - New Spacer Between Spring Plate
- Cabrio Top - Water Leaks
- Paint - Manual Supplements
- Tools - Celette Collision Repair Systems
- Air Bag - Scheduled Maintenance
- Vehicle Security Codes - Requesting
- Muffler Mounting Bolt - Loose or Broken
- Control Unit - Parts, Coding/Adapter Plug, O2 Sensor
- Engine Performance - Erratic Running or Stalling
- Doors and Hinge Pillar - Modifications
- M/T - Scraping Noise When Operating Clutch
- Tools - Converting Release Lever Shaft Bearings
- Cabriolet Top - Basic Adjustments
- Windshield Cement - Mixing
- Body - Windshield Replacement Parts/Installation
- Rear Window - Scratches in Middle
- Vent Window Frame Support - Breakage
- Engine Lubrication - Oils That Minimize Carbon Build-Up
- Engine - Motor Oils That Minimize Carbon Build-Up
- Engine - Approved Engine Oils
- Engine - Porsche Approved Oils
- 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
- M/T - First and Fifth Gear Thrust Washers Now Identical
- M/T - Shift Rod Clatter at Idle, Coast or 2500-3500 RPM
- M/T - Torque Specifications
- M/T - Jumps Out of 1ST or 2ND Gear
- M/T - Jumps Out of 4TH Gear
- M/T - Noise
- M/T - Noise While Coasting 3000 to 4000 RPM
- Tools - Boost Measuring Gauge Hose Available
- Transmission Fluids - Specifications
- Engine Performance - Poor or Intermittent Loss of Power
- Vehicle - Year 2000 Hardware/Software Readiness
- Alignment - Caster Adjustment Values
- Front Wheel Seals - Squeaking or Whistling Noise
- Tools - Wheel Alignment Equipment
- CV Joint - New Grease
- Electrically Operated Top - Test Plan Revised
- Cabriolet Top - Revised Tension Cable Securing
- Cabriolet Top - Locating Pins Stick/Bind When Opened
- Radios/CD Players - Obtaining & Entering Security Codes
- Paint - Repair Spraying Medium Solid Paint
- Cylinder Head Studs - Installation Precautions
- Cabriolet Top Control Unit - Revised
- Hand Brake Shoe Retaining System - Correct Installation
- Seat Rail - Adjusting For More Leg Room
- 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
- Tires - Summary Of Summer Tires
- Engine - Approved Porsche A40 Engine Oils
- Tires/Wheels - Handling Instructions After Damaged
- Engine - Approved Engine Oil Specification
- Computers/Controls - Component Diagnosis