VW Up Transmission Sensor Failure Causing Multiple Issues

Had similar transmission issues with my 2019 VW Polo TSI last year. The symptoms match closely, rough shifting, starting problems, and transmission-related error codes. The root cause was actually a defective transmission control unit, which affects multiple systems including gear linkage and shift lock mechanisms. This explains why you are experiencing problems engaging park and having rough transitions between gears. This is a serious issue that requires immediate attention. In my case, the problem progressively worsened until the transmission would out of nowhere go into neutral position while driving. The repair involved replacing the control unit and recalibrating the entire transmission system. The fix requires specialized diagnostic equipment to properly identify all affected components and perform the necessary reprogramming. This is not a typical repair that can be handled by general repair shops, it needs a technician with specific transmission repair expertise. Important: Continuing to drive with these symptoms risks causing additional damage to the transmission. The sooner this is addressed, the better chance of avoiding more extensive repairs. Would suggest gathering all error codes and having them properly documented before visiting a specialist. This helps narrow down the exact nature of the transmission control unit failure.

These symptoms match exactly what happened to my VW Up back in 2021. The automatic transmission started acting up, especially with the shift lock not engaging properly and rough gear changes. The transmission specialist diagnosed it as a faulty gear shifter assembly combined with electrical issues in the control module. Getting the car into neutral position became increasingly difficult before I had it fixed. The repair resolved all issues and the transmission has worked flawlessly since then, but I wonder how much you ended up paying for your fix? Did any other problems surface after the repair was done? My transmission failure scared me enough to be extra cautious with maintenance now.

I can confirm that getting the faulty transmission control unit replaced completely resolved my transmission issues. Since having the specialist repair done 8 months ago, the gear shifter and park position have worked perfectly with no additional problems surfacing. The total repair cost came to 1000€ for replacing the affected control unit. While not cheap, it was worth every cent considering how smoothly the transmission operates now. The rough shifting is gone, and the parking position engages reliably every time. The transmission specialist also performed a full system diagnostic and recalibration as part of the service. I was relieved to learn that catching the issue early prevented any damage to other transmission components. Regular maintenance is definitely key to preventing future transmission issues. The transmission repair specialist recommended fluid changes every 60000km and checking the gear linkage during annual inspections to catch any potential problems early.

I took my VW Up to a specialist transmission shop last week after seeing these replies. The symptoms were spot-on, my automatic transmission was acting up with rough shifting and park engagement issues. The mechanic found a failing transmission sensor and damaged gear shifter assembly. The total repair came to 1200€, including parts and labor. They had to keep the car for 2 days to complete all the work and testing. Since getting it back, the transmission shifts smoothly again and the neutral position engages perfectly. No more problems getting it into park either. The check engine light is finally off and all transmission codes are cleared. What a relief to have this fixed before it caused more damage. Already scheduled regular transmission fluid changes going forward. Having gone through this, I highly recommend not waiting if anyone notices similar shift lock or gear engagement issues.