So you hate the way tranny shifts and dealer and other shops didn’t find any faults and told youit is what it is and this is how it is intended to work! Well it is total lie they are trying to get rid of you with. Remember-cheap people usually pay twice (no offense). Replacing just solenoids without rebuilding valve body, where accumulators/pistons always go bad after 60-70k, will not get you perfect results, but might improve shifting quality. Rule of the thumb is not to drive it if it jerks,or shifts wrong. All those jolts, bumps or harsh shifts cause premature wear and tear on your tranny. IF AFTER REBUILT, it's not shifting well, it means YOU WAITED TOO LONG WITH VALVE BODY REBUILT AND DESTROYED transmission hardware (bushings or actual clutches failed) and you need to rebuild it, but like i said main problem STARTS at valve body and then if not fixed in time you get worn out transmission. If after you rebuilt or replaced valve body and R ESET ADAPTATIONS USING BMW SOFTWARE INPA OR ISTA IS A MUST, OR YOU WON'T SEE ANY DIFFERENCE AFTER REBUILT, BECAUSE TCM KNOWS VALVE BODY PRESSURE VALUES AND THEY MUST BE RESET. DRIVING WITH LEAKING VALVE BODY WILL EVENTUALLY WEAR OUT ACTUAL TRANSMISSION HARDWARE.īEST ADVICE FOR YOU: SINCE 99% issues with this trannies are related to valve body fluid pressure loss, I strongly recommend new (re manufactured) valve body from ZF (expensive 1600$), (you can find some companies offer this rebuild, but they charge almost new VB price, or rebuild it yourself with NEW SOLENOIDS PACK (300-400$) and SONNAX zip kit (150$). AND EVERYTHING IS RELATED TO VALVE BODY PRESSURE LOSS DUE TO SOLENOIDS OR ACTUAL VALVE BODY SEALING GASKETS LEAKING INSIDE, BUT BETTER DO BOTH. On the highway this tranny will easily last 200-300kmls. In this post i will be explaining why you have transmission issues like:Īll highlighted problems you can experience even on low miles cars less than 70-80k, it depends on at what speeds your car mostly runs. It applies to all BMW, Jaguar, Bentley, Rolls Royce, Maserati, Audi and others with ZF 6HP26, 6HP19, 6HP28 What you are supposed to know about your ZF6HP26, 6HP19, 6HP28 and similar ford Transmissions.

Repair manual zf 6hp19