As I had previously posted on the 1995 Mercedes S500. ABS ASR LIGHT ON. No Speedo, no engine operation under any circumstance over 4500RPM, Park, Neutral or any forward gears. I ran down what I could, and paid to have it scanned at the local independent Mercedes shop. They said the only thing wrong was the Brake Pedal Switch, about $17.00 for the part. I am sceptical, I even read the print out. Is it possible this part has caused all this to go wrong?

Thanks,
TOM