5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
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!
I did that. They analyzed the transmission and it is fine. The shop localized the root causesto a communications network error and said to go to a BMW dealership. Delarship said "bad tranny" and never even checked with the shop. Other things have occurred to make me believe the BMW dealership service department is not good on diagnostics. Just replace parts and see what fixes it.
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