99 audi a4 won't start please help
I own a 99 audi a4. I replaced the battery and the car would start and after a few seconds the engine would stall. I had the fuel pump checked and it is working perfectly fine. The mechanic couldn't find out the problem and mentioned about an "immobilizer", is there such a thing? Also, the stereo displays a "safe" sign and wouldn't function. I don't have the manuals anymore which apparently contains the code of the stereo. Please help.