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Old 11-30-2012, 11:11 AM
goldenbird goldenbird is offline
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Location: Lebanon
Join Date: Nov 2012
Posts: 5
Mein Auto: BMW X5
When trans failsafe program warning show up,it means that there is a problem with the transmission. it might be a sensor, a worn gear, an electrical wire corrosion, low level fluid etc.... U need to check with your mechanic the error code related to the problem the transmission faced just before going into failsafe prog. the stored error code or codes guides you to the proper solution. the trans failsafe means : in order to protect your trans. due to a fault, from damaging your transmission, the proper work of your transmission is halted. you could then still driving, but the gear number 3 or 4 is auto selected. you can turn ur car off for a couple of minutes than restart normally with TFSP cleared. Changing ATF is only done based on those error codes. it might enhance drive shifting as it could make it worse, but don't replace ATF for no reason unless your ATF is regularly replaced each 50k miles. At 150k miles without prior replacement, changing ATF is somewhat risky, where your gears are adapted with the bad fluid quality. Replacing with a new ATF with better viscosity may push your gears to start slipping and will also due to the detergents in the new ATF will clean the oil oil passages pushing stains to move and may clog something in the transmission
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