1,6,7,8 - Series and Mini CooperGeneral Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.
I just did $5,400 worth of work on my 840ci yet the car still goes into Trans. fail safe mode "limp mode" a couple times a day when I slow down...has anyone had that problem? is it the tranny?Even the tech is having a problem with this 1.....its not the fluid or sensor or connection
When you changed the fluid a filter what procedure did you use as it has to be done a certain way,if the fluid is low when in 'N' and the engine running this will also cause the problem and using the incorrect fluid will also it has to be Dextron III.
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Thanks for info Marti5...I also forgot to mention that the tranny now sometimes at a light does not engage when I hit the gas initially, and if I hit gas too hard, car goes into fail safe mode but if I press gas lightly then tranny engages....Does not do it all the time though....Would you know if the ABS brakes have something to do with this?
1997... the Q is when was the tranny last serviced? i.e. oil and filter changed, or the tranny flushed?
If not in a long while... it's a good time to do it now.
Although, the symptoms you describe... they point to low level of tranny fluid or the fluid itself may have "burnt out" over time and lost its vicosity.
Loss of viscosity equals loss of friction in the internal clutch plates of the auto-tranny. So when u push the gas hard, the sensors will detect the imbalance in engine speed and tranny speed, and wheel speed - thus, the fail-safe or limp home mode.
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