Troubleshooting Guide Cooling System Components Audi A4 When repairing only use spring-type clips. VAG 1921 pliers are recommended when installing spring-type clips. The O-rings installed at the quick-release connections must be replaced if damaged or leaking. When installing coolant hoses, make sure that they are free of stress and do not come into contact with [...]
General Information Audi 3.6-litre V8 Twin Turbo FSI Engine As a consequence, the engine performance is limited by air-restrictor(s) upstream of the air intake system(s) and by additional electronically controlled boost limits for turbocharged engines. The size of the restrictors depends on the engine capacity and technical complexity.The choice of the injection process was determined to a large [...]
Common Problems Troubleshooting – Audi Hints and Tips Series If the immobiliser control unit has no fault stored, the cause is a loose contact or an excessive transition resistance on connectors or earth connection. Check the earth cable and earth contact for the immobiliser control unit. The cables of the control unit must be routed free [...]
Complete List Fault Code Diagnostic Reference for Volkswagen & Audi Blink 1988 / 5 cylinder / California models – Records permanent faults. 1988 / 5 cylinder / 49 state models – Does not record permanent faults. Fault codes consist of 4 digits -1st digit evenly spaced flashes, 2.5sec OFF -2nd digit evenly spaced flashes, 2.5sec [...]
Electrical Testing for Audi Air Conditioning The adapters from VAG 1598 A test box must not be connected to the A/C Control Head -E87- during the self diagnostic. The electrical testing on Audi vehicles from model year 2002 is described with the VAS 5051 Vehicle Diagnostic, Testing and Information System. The electrical testing can also [...]
Platform BiTurbo Engine Mechanical Audi B5 1996 – 2002 Do not open coolant circulation system. Removing First determine whether a coded radio is installed. If so, determine the correct coding. Switch ignition off and disconnect battery Ground (GND) strap. Remove bolts (arrows) and remove engine covers -A- and -B-. Remove cover above air filter. Remove [...]
Secondary Air Injection (AIR) system Checking Audi TT The heat produced by secondary oxidation greatly reduces start-up time for the catalytic converter, therefore improving exhaust quality during the cold start phase significantly. In the cold start phase, the ECM -2- activates the secondary air pump – 12- via the relay for Secondary Air Injection (AIR) [...]
Do it Yourself Adjust Audi Allroad Suspension With your engine not running, but the car’s ignition set to “on”, log into the allroad using your VAG-COM tool. Select “Less Common Modules” you’ll see the following screen: When the adaptation screen appears, be warned that you MUST finish the entire adaptation or else you will cause [...]
Brake Installation Manual Audi A4 Be aware that brake fluid may leak from line once disconnected. 8. Disconnect ABS sensor grommet from mounting bracket by pulling straight up. 11.Place the pad sensor plug in the small opening on the upright. 12.With a zip tie included in the kit, secure the plugs placement by zip tying [...]
Transmission and Final Drives Fluid Level Checking and Filling Audi A8 The Audi Distributor Gear is akin to a 4WD transfer case; the transmission drives front and rear axles through this center differential The “A8 4.2Q Distributor Gear Seal Replacement Procedure” posted was aimed at the center differential driveshaft seal located at the very rear [...]
