neoBentley+A work in progress.
Bentley Publishers (link below) publishes the best available tech info for VWs outside of genuine factory information.
Bentleys are (somewhat loosely) based on the genuine factory information, unfortunately, Bentley leaves out some information that they have decided for you that you don't want or need or shouldn't have.
Still, Bentley offers the best available to the majority of enthusiasts, so we buy and use. If you don't yet have your own copy, you ought to start budgeting for one soon.
The intent of this page is to offer links from various enthusiast sites that fill in some of what's missing from Bentley. Sometimes these sources offer info in plainer language than Bentley, some cover areas of the car not addressed by Bentley at all.
Technical articles, write ups, howtos and forum threads applicable to VW A1 chassis cars.
The organization below approximates that found in VW Factory shop information systems.
Exceptions are made where a topic could, by some logic, apply in more than one section, such as Dynamic Oil Pressure Warning Systems. VW includes DOPWS info only in the lubrication section, here, DOPWS info can be found in both the Lube and Instrumentation sections.
All links will open new windows.
Bentley VW manuals, paper, CDRom, web.
Buy direct from Bentley Publishers or use the ISBN information to aid your on-line shopping, or order it from any retail bookseller.
Group 0, General
How to Ask for Help in Automotive Forums
General Lubrication Info
How to google Search forums.vwvortex.com
About "Triple Square" "XZN" bolts.
A VIN Decoder.
Totally NOT A1 Related, Volkswagen Vanagons with Subaru WRX Turbo engines
Some Suby>Vanagon Conversion parts.
Kennedy Engineering, the old standard in adapter parts for whatever engine to Air Cooled VW Transaxles.
Group 1, Engine
10, Crank and Block
15, Head, Cam, Valves
Valve adjustment.17, Lube System
Head Gasket Failure Diagnosis.
Cam Belt Tensioner Tool Pic. Purchase link.
Timing Belt Timing.
19, Cooling System
Group 2, Engine Management
20, Fuel Storage and Supply
23, Diesel Injection
Duty cycle adjustments.
Real basic CIS mixture adjustments.
CIS Injector Cleaning, Seal and Holder Replacement.
Fuel pump relay wiring bypass for early A1s with AMP fuse/relay panel.
Dwell and/or Duty cycle meters; Actron CP7677 ($66.00) Sears, 82138 ($30.00) Fluke 88V
CIS fuel pressure gauge set from Harbor Freight
Air shrouded injectors.
Injector Puller Pic. Purchase Link.
Underhood Air Temperature Measurements.
27, Starting and Charging
Starter booster relay installation for starter 'Heat Soak' issues.
Heat soak thread at Bentley publishers including factory TSB.
Auto trans shift lock/starter interlock relay bypass, '90 - '93 Cabriolets.
Starter Replacement on Automatic Transmission Cars.
Get You off of the Side of the Road Charging System Patch, no duct tape or tie wraps needed.
Diesel Starter Tear Down.
Tweak Charging System Voltage.
DigiFant, CIS-E Only Static Timing (no CIS Basic or lambda).
Ignition Switch/Steering Column Lock howto
Ignition Switch Terminal "X" Explaination and Diagnosis.
Knock Controller Wiring for Adding Knock Sensing Ignition to CIS Basic or CIS lambda.
Another Knock Sensing Ignition Install Write up.
Group 3, Transmission and Clutch
scirocco.org's ratio page
funksoulkitty's 020 trans build, 02J teardown, 02J build.
Speedo drive gear details.
020 trans fluid change
cheapassron's Homebrew 020 Transaxle Tooling. dang, dead link, was good stuff here too.
rabbitnothopper on the 'tex found some of cheapassron's stuff at the internet achive.org, I copied the photos I found there, they are now in this directory.
Broke's Reverse Light Switch Autopsy
32, Torque Converter
34, Manual Trans Controls and Assembly.
35, Manual Trans Gears and Shafts.
37, Automatic Trans Controls and Assembly.
38, Automatic Trans, Case, Gears and Shafts.
Group 4, Suspension, Brakes and Steering.
40, Front Suspension and Drive Axles
42, Rear Suspension.
44, Wheels, Tires, Alignment.
45, ABS Brakes
46, Brakes, Mechanical.
Group 5, Body Assembly.
50, Body, General
57, Front Doors.
58, Rear Doors
Group 6, Body Externals.
61, Convertible Top
Briano1234's Top replacement, the152, TRF
Make your own side cables.
Make your own rear cable.
How to replace a Cabriolet Top, by Forrest King. ( M$ Word .doc)
Rain gutter fabrication.
Cabriolet rear window and window frame replacement.
Complete Top Assembly Removal, (archived as a .pdf)
Some Cabriolet Water Leak Tips.
Replace Cabriolet Roll Bar Padding.
Links to Links to All of Briano1234's Convertible Top Howtos.
Generic Cabriotet Top Strut replacements.
Off Topic, A3 Cabrio Top Removal and Installation.
66, Accessories, Exterior.
69, Seatbelts, Air Bags.
Group 7, Interior
7, General Interior
Group 8, HVAC
80, Heating and Ventilation.
87, Air Conditioning.
Shortcut heater core replacement for A/C cars.
Another Shortcut heater core replacement for A/C cars.
HVAC vacuum control distributor.
HVAC air distribution box mode for heat from the side vents.
Refurbish dash side vents to seal.
A/C compressor clutch hub bearing replacement.
Compressor clutch details.
Group 9, Electrical.
92, Wipers and Washers.
94, Exterior Lights.
96, Interior Lights and Accessories.
97, Schematics, Wiring.
Credits, oh yes, credits are due!!
Many sources were used compiling this links page including
A Huge Thanks to all these sites for your positive contribution to the worldwide auto enthusiast community.