I have 150,000 miles on my Z3; the manual states the transmission fluid is for life and should not be changed. I am having problems on the 3rd gear slipping on acceleration. Two engine lights will appear... Should I take a chance to change the transmission fluids or replace the transmission (if replacement, should it be a rebuild or ...)
BMW Q&AAsk Your Question
1999 BMW Z3 Question: Transmission Service
Answer #1ghostima96 December 27, 2010, 15:08Technician
Take it to a transmission shop have them diagnos it then take it from there.
Generally if the manufacturer recommends not changing it they make it very difficult to change. And if memoty serves correct there is no tranny dip stick to check the fluid level. I believe you have to use a scanner to cmmunicate with the tranny ECM to know the fluid lvl