i have the same problem mate, is it possible to get the file of your "1431" version? i need it to write it on my dsg.... thanks in advanceSOLVED
Following on from my previous post. The solution to the gearbox fault caused by the 23X4 software update is to reverse the TCU software back to the previous version.
After the 23X4 software update was carried out by VW the software versions on my vehicle were:
ECU - 7728
TCU - 1637
Reversing the TCU software back to the previous version, which is version 1431 removes the gearbox fault. This returns the vehicle back to the condition it was in before the 23X4 update. I did not change the ECU software, only reversing the TCU software is required.
My advice to anyone reading this who is experiencing the same problem after having the 23X4 update carried out by VW is to not listen to them and not let them touch your vehicle. Certainly do not let them replace the AUX pump. Find a tuning garage local to you that has the ability to reverse the TCU software.
After nearly two weeks of arguing with VW, they would not listen to me and their "technical department" insisted that the software could NOT be reversed and the AUX pump would need to be replaced. This is complete rubbish, of course the software can be reversed. I took my vehicle to a third-party garage who reversed the TCU software back to the previous VW version in less than 10 minutes, problem solved. VW do not want to take responsibility for the problems caused by the 23X4 update and will insist it is not the software that is causing any issues.
For anyone in the UK you can raise a complaint to the VW customer service team, the number is 0800 083 3914. Once you have raised the complaint you need to request to escalate it to the executive office. This bumps the complaint up to the head office and a case handler will be assigned. The more people that highlight this issue to VW the better.