Posted on 26 October 2015
BMW transmissions are susceptible to wear and failures. Proper maintenance ahead of time can avoid more costly repairs. We have a BMW 650i with a transmission failsafe message and exhibiting symptoms such as car doesn't go into gear, gear disengages and shifts into neutral while driving and rough downshift. The transmission will enter a failsafe mode, also known as limp-home mode, when the EGS module senses a fault or missing input for proper operation. This can be caused by mechanical wear such as worn clutches, communication problems, low fluid and more. After retrieving the fault codes from the EGS module, we'll remove the transmission pan to inspect for wear. Mechatronics Sealing Sleeve Failure This E63 6 series is equipped with a 6HP ZF transmission. Upon inspection we've found a worn mechatronic seal on the valve body causing low fluid pressure which will prevent the transmission gears to engage and triggering fault code such as 507D Park ... read more