?> Mini-HOWTOs   |   Replacement Parts   |   Supplies and Staples   |   Routine Maintenance   |   Troubleshooting   |   HOWTOs OK, first things first. Some of the procedures in this section are very involved and if you do something wrong you could cause expensive damage to your car (or your health)! Before you attempt anything in this section, you should make sure that you have: All of the necessary tools Enough time to complete the job from start to finish Auto repair experience (or at least a good knack for mechanical things) An alternative form of transportation in case something goes wrong Enough money to have your car towed to a mechanic and fixed in case something goes really wrong You've been warned! I've tried to be as thorough as possible with these instructions, but I'm only human so there are no guarantees. Perform these procedures at your own risk. And if your car falls on you and you break both of your legs, don't come running to me. (or something) Checking/replacing sensors: Engine Coolant Temperature (ECT) sensor [G62] Heated Oxygen Sensors (HO2S) [G39] and [G108] Testing/fixing/replacing single small components EVAP canister purge regulator valve [N80] Fuel injectors and fuel pump relay [J17] Idle Air Control (IAC) valve [N71] Interior repairs Replace the backlight bults in the outside temp. display and/or shift indicator Repair the instrument cluster to fix intermittent digital display problems Major undertakings (don't say undertaking!) Replace the timing belt Replace the head gaskets Replace the fuel filter (A6/100) Replace the oil check valves under the valley pan Replace front suspension components (80/90/Coupe/Cabriolet)

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