20 Most Recent 2006 Audi A4 - Page 7 Questions & Answers

Emission can be an 02 sensor or catalic converter or fuel related problem. You need to have the codes read and go from there. You can drive the car, but you will damage the catalic converter after time. And it will eventually shut down on you.

cruise control is a vacuum system that holds the accelerator at a steady level if the vacuum is bad it wont work

up under the dash this isnt a do it your self thing its quite involved here is a picture so you can see

There is a oil level sensor that is at the bottom of the engine oil pan. There is also an oil pressure switch that threads into the back of the engine block.

never herd of idle air motor maybe idler pully sqealing

This depends on the settings for the on board computer and the type of oil used for services.if set when NEW,using fully synthetic oil the service interval will show up on the dash as "service"(approx 20k/2 years) BUT if OEL shows,then use semi synthetic oil and change at 10k/every year.weight of oil should be 10/30 upto 60k then use 10/40 after or when you notice an increase of oil consumption.These engines WILL use oil, as the bores are plasma coated,roughly 1ltr to 500km is acceptable(according to AUDI).Yes i know that AUDI fit 5/30 when new from the factory,BUT only supply 10/30 or 10/40 to the dealers for aftermarket services....(they have a deal with castrol,gemini,worldwide).Same goes for all VW group products,after all it is a VW engine.

check the seal on your gas cap if the seal is bad it will cause that issue
make sure the cap gets tight
just because the cap clicks doesnt meen its tight you might just replace the cap
they cost about 20 dallors

You will probably need to have the original chip reprogrammed since it was reinstalled. Either at a dealer or an independant shop that specializes in german automotive.

hmmm... is fuel level good above 1\4 tank

TO RESET, MOST VEHICLES TURN ON THE IGNITION SWITCH, [DO NOT START THE ENGINE ] PRESS THE GAS PEDAL TO THE FLOOR 3 TIMES, THE LIGHT SHOULD GO OUT. IF THAT DOESN'T WORK, YOU CAN DISCONNECT THE NEG. BATTERY CABLE FOR A MINUTE THEN RECONNECT, START THE ENGINE, THE LIGHT SHOULD BE OUT

Normally there are four screws to remove. Top left and right of the panel and under the door pull. Remove screws and lift the panel straight up. There is a shield under the door pull . Remove screw and pop out shield. Door panel screws should be visible.

Well I would make sure that whoever is changing your oil is using an oil filter with an anti flow back valve. I had the same problem with a few of my car when I used filters without the anti flow back valve. I can't stand that noise when you first start it. Now I always use anti flow back filters and I never hear it anymore.

It should be in your owners manual. If you do not have one you can get one online.

Take your car to your local auto parts store most will read the codes for free as a service to their customers. And will try to troubleshoot the code to help you out. They also want to sell you the parts it may take to fix it.

1. The engine does not have any fuel system screw bleeder!
2. The only one way for start the engine is to fill up the tank, then turn the ignition key in "ON" position for 4 - 5 times, wait for 10 seconds between two attempts, without cranking engine.
3. After that push the clutch pedal, (if exists), to the floor, and the accelerator pedal to the floor too. Now turn the ignition key in "ON" position, wait for 5 seconds, and crank the engine for maximum 40 ... 50 seconds. Wait for 60 seconds between two starting attempts, in order to save the battery & starter motor.
4. Repeat the step no.#3 until start the engine.

IMPORTANT NOTE: DO NOT TOW THE CAR IN ORDER TO ATTEMPT TO START THE ENGINE!!!

Sounds like it is some kind of vaccumm tube. Not real familiar with this car though.

Just take your Audi to a State Inspection Station. It's a Slam Dunk for them. And it will be in accordance with the Law.

Best Regards

these vehicles are known for ignition coil failure. typical symptoms include: Misfire, power loss, vibrating engine, poor fuel consumption. If the vehicle's engine vibrates, it be misfiring. Is your chk engine light on???

The computer usually sits on the wall next to the driver's legs, but yours could be under the seats, or under the dash, that one I don't know, but it should be kept dry, not under the hood. The valve body is in the transmission. It is accessible from underneath, just under the filter, or on top I should say, holds all your shift solenoids etc.