general problems of the 2007 Audi A6

Oil separator intake leek. No heat. Coolant purges in an out of resavoir.

Takata recall - the nearest Audi dealer is 125 miles away. I have a recall notice but have spent approximately $6,000 on electrical problems in vain and cannot trust the car to make it to the dealer to repair the airbag. . Then there is the problem of trusting the airbag in the time I drive to the nearest dealer not with standing the air bag problem alone. In regard to the electrical failures, I was nearly run over by a semi at freeway speed when the engine suddenly stopped. The problem comes and goes like a ghost is involved and nobody has been able to properly repair it. At one mechanical shop I lost a windshield and at another I lost a taillight with replace cost over $392. 00. What can I do with all of the above considered? I cannot sell the car due to safety concerns for the next owner and have suffered a large depreciation. This problem can occur anytime but most often when going across a speed bump or upon a rough street. It has happened many times over the past three years. The date I give below is best guess.