2000 540 transmission problem when hot
My 540 with 155,000 miles and Steptronic is having a problem when the weather is warm (70+). I will be cruising when the car has been running for a while and the transmission will drop into the failsafe mode. If I keep driving the service engine light will come on. Stopping and restarting the car wil lsometimes reset it but on a warm day that doesn't work.
The PRDL are all lit on the dash display. I had it checked at a good shop where they checked the codes and several solenoids were replaced just before winter. Runs like a champ otherwise.
Anyone have a similar experience and was able to find a solution? Thanks!