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A4s are known for airbag lights due to the bag in the side of the driver's seat. The yellow connector under the seat gets stretched and opens up partially if you move the seat too far. It's just a quick opening but it's enough to trip the light. In mine, I ziptied the connector tightly together, then turned off the light (you need the VagCom diagnostic software for this).
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"Retriger airbag control unit"??? NOT! If the airbags are deployed in a 2000 Audi A4, the airbag control unit MUST be replaced. Pleases refer to 2000 Audi A4 service information for more details.
First remove the driver's side fog lamp plastic cover out from front bumper. After that you will find torx socket head panel screws from fog lamp. See picture below:
I had the same issue with my '05 A4 1.8T. Turns out it was the RPM sensor. Audi tried to tell me it was teh fuel pump and the cam-shaft positioning sensor. Paid for teh fuel pump replacement and it died 6 blocks from the dealership. Then they replaced the RPM snesor, works great now... Except it's still an Audi.
The main thing with dealing with airbags is to ground yourself before plugging them in. Any electronics shop can sell you an ESD (electrostatic discharge) wrist strap and ground cord for a few dollars. Use this to ground yourself securely to the frame of the car. This gives a pathway for static electricity in your body to discharge into the car, rather than into the airbag connector, potentially blowing the airbags. All the same, whenever possible, don't sit in front of the bag you're installing in case something goes wrong and it does blow.
hey well Fuel pressure will cause this concern as with a failing fuel pump, also a
misfiring engine from worn plugs or defective coils will cause any bucking/jerking
if u have as you try to accelerate, but this would cause a check engine lamp. A bad Mass
Air Flow sensor can also cause a poor acceleration and usually does not turn on
the check engine lamp.
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