Maintenance: Technical Service Bulletins
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Transmission Fluids - Specifications
- Engine - Motor Oils That Minimize Carbon Build-Up
- Tools - Special Wheel Balancing Adapter
- Towing - Long Distance & Emergency
- Tools - Auto Scopemeter & Engine Analyzer
- A/C - Substitutes for R-12 Refrigerant
- A/C Refrigerant - Identifier
- A/C - Refrigerant 134a Use
- Camshaft Drive Belts - Recommended Usage
- Balance Shaft Belt - Align Paint Mark When Installing
- Engine - Drive Belt Checking and Adjusting Values
- Engine - Oil In the Cooling System
- Toothed Engine Belts - Storage, Packing and Handling
- Engine - Poor Performance After A Cold Start
- Cooling System - Clean & Flush After Repairing Leak
- Radiator - Plugged Up
- Coolant - Phosphate-Free Replacement Recommended
- Cooling System - Approved Phosphate Free Anti-Freeze
- Spark Plug - Application Chart
- Spark Plugs - Install With Threads Clean and Dry
- Spark Plugs - Revised Plugs and Tightening Torque
- Distributor Rotor - Replacement Procedure
- Camshaft Drive Belt - Check/Adjust After Replacement
- Camshaft Spur Belt - Proper Tension Adjustment
- Camshaft Spur Belt - Tension Value Changed
- Cam Belt Tensioner Nut - Torque Specification
- Camshaft Drive - Replaced Parts Upon Belt Failure
- Tools - Testing Device for Tensioning Toothed Belts
- Wheels - Unapproved Installation of 18 Inch Wheels
- Summer Tires - Wheel Rim Summary
- Tires/Wheels - Summer Recommendations
- Tires/Wheels - Summer Tire and Wheel Rim Summary
- Wheels - Non Approval of Chrome Plating Aluminum Wheels
- Front Wheel Alignment - New Toe-In Specifications
- 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/Tire - General Information
- Tires/Wheels - Winter Tire/Wheel Rim Summary
- Wheels - Using 28 mm Spacers to Widen Rear Axle Track;
- Tires - Manufacturer Contact Information
- Tires (VR-Rated Summer ) - Do Not Mix With ZR Rated
- Tires - Winter Tire Summary Supplement
- Wheels - Lockable Fasteners Available
- Engine - Noise From Distributor Area
- Engine - Cold Start Problems at Low Temperatures
- Engine - Remove Dip Stick When Refilling With Oil
- Engine - Additional TDC Mark on Flywheel
- CO Sample Pipe - Material and Mounting Change
- Tools - For Starter Ring Gear, Balance Shaft Belt
- Engine Lubrication - Oils That Minimize Carbon Build-Up
- Engine - Approved Engine Oils
- Coolant Hose - Damaged By Headlight Linkage
- Engine - Diagnosing Performance Problems
- Drive Belt - Tension Specifications, Checking/Adjusting
- Tools - Wheel Alignment Equipment
- A/C - Use of Correct Refrigerant
- A/C - Refrigerent Oil Volume Capacities
- Tires - Summer Tire Summary
- Tires/Wheels - Handling Instructions After Damaged