Fullback Automatic Transmission Problems

Whoa, that sounds rough! I had a similar experience with my old BMW 3 Series, although it was a petrol engine. The transmission started acting up in a crazy way. For me the culprit ended up being low voltage causing all sorts of electrical gremlins. Have you checked your battery and charging system? It might be worth a look before you start tearing into the transmission itself.

Interesting! So, what exactly do you mean by 'low voltage'? Was it just a dead battery, or something more complicated? And how did that mess with your transmission? I'm not really a car expert, so any details you can share would be super helpful.

Well, in my case, the battery was getting old and not holding a charge properly. This meant the car's electrical system wasn't getting the voltage it needed, which can really mess with the sensors and control units that manage the automatic transmission. It's like the brain is getting scrambled signals! Honestly, I’d suggest getting the battery and charging system professionally checked. It might save you a fortune compared to just assuming it's the transmission itself. My car ended up at the workshop.

Thanks a lot for the tip! I took your advice and had the battery and charging system checked out. Turns out there was indeed undervoltage in the vehicle. Apparently, that was messing with the transmission control unit. They sorted out the electrical issue, did a transmission oil change and now it’s shifting smoothly again. Total cost was 240€. I really appreciate you pointing me in the right direction!