ZF S6-40 Transmission Repairs

 

 The most common problems with the S6-40 transmission are clashing on gear shifts and popping out of gear.

 

·        Clashing is usually remedied with replacement of a synchronizer ring. The ZF company distributes the synchronizers in full sets. The first through fourth gear synchros can be replaced for $1,988. This includes removing and replacing the transmission in the car.

·        Synchronizer replacement for  first through sixth gears. $2,213.

    Note that if the transmission has had more than a few hard gear clash events, the gear and its associated sliding ring may also need replacement. For example, the parts cost for a second gear and its sliding ring is $697.

·         Popping out of gear. In many cases replacement parts are about $700. In addition, replacement of the synchronizer rings is recommended.