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Re: Transmission advice (archive)

[ Follow Ups ] [ 8-series (E31) Message Board ] [ Msg. Board FAQ ]

Posted by Stan on June 16, 2000 at 09:09:30:

In Reply to: Transmission advice please posted by Steve on June 16, 2000 at 06:36:09:

Your OBC probably read out "TRANS FAILSAFE PROG", which is the 'limp-home' feature when something goes wrong. What happens is the trans will shift to 3rd and stay there, when there is a system error (just take it easy and drive slowly and carefully, these wonderful machines will get you home).

That said, it may not be your transmission at all. I had the same problem (and it was intermittent) and it was a cam-shaft position sensor. Justin recently went through this as well and I believe it was an engine sensor as well, although he did find a faulty electromotive clutch later. The reason for this is that the electronics are so integrated in the car, a failure in a sensor can trigger a cascade of error-faults and lead to a read-out of something like the transmission fail-safe. Have your mechanic look carefully at the fault code readout and chances are that there are a few codes prior to the transmission code. Check items starting with the primary fault code first, and work down the list. If the primary fault is a transmission one, you may have a tranny problem, but it doesn't sound like it. But take heart, chances are that it's in an engine sensor and should be easy to repair.

Calm your wife's fears, these cars ARE reliable, as long as you take care of them, give them regular maintenance, and lot's of love.

Stan C.
'92 850iA
Bay Area 8's


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