Quote:
Originally Posted by pkortun
well, the dealer checked the car again, didn't find any codes, checked the fluid level and updated the engine and transmission software. I noticed a minor improvement of upshifting in Sport and Manual modes - it became very smooth. However, the jerking between 3rd and 4th gear wasn't fixed. Dealer claimed they did notice that. However, if they would, they can only advice to replace the whole transmission. So, what's next for me? Replacement of solenoids or the whole valve body unit? Any suggestions?
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Valvebody/Mechatronic problems are common. IIRC, it has to do with o-rings and maybe needles. You can do a search and read up on it. Dealer will not rebuild tranny. They can only offer to sell & install a remanufactured (not rebuilt) tranny.
Others may chime in with things to try but ultimately you might just have to take it to a reputable transmission shop for a proper diagnosis. It would be very helpful if they can reproduce the problem. It may be a combination of torque converter, valve body and/or other things.
If you are a person that leans towards rebuilding vs replacing the transmission, its critical that the shop is familiar with working on ZF transmissions or have access to a proper tech. From my experience looking into rebuilding, most shops don't have a knowledgeable tech - they usually have to farm it out.
Rebuilding will save you money from just dropping a remanufactured but may cost you some time. Also, rebuilding may save you the headache of the mechatronic trans module not having to be recoded to your vehicle.
Good luck and I will follow this thread with interest on how it all concludes.