I have an Audi Q5 2.0T (automatic). The car has an issue where when it slows down to a stop, the car starts to judder, sometimes quite violently and on some occasions it cuts out all together.

I bought the car second hand from Dees of Wimbledon, and bought the extended warranty (Waaranty4life). Before taking it back to them, I took it to Audi in Sydenham and explained the problem and asked them to have a look and advise of the issue. They had a look and advised that on the minimum the car will; need a software update, but 9/10 it doesn't usually resolve the issue, and that the likely resolution would be to get a new gear box at which the quoted to be £9,700 (I paid £18k for the car). At which point I pretty much fell off my seat. They said it was my choice on whether to do the software update at a cost of £150 or arrange for a new gearbox. I then contacted Dees of Wimbledon and explained the situation and the report back from Audi. They then said I need to bring the car in for them to perform their own diagnostics for a price of £96 (to be fair they waived this price because they couldn't find the fault and recommended a software just as Audi did). I explained to Dees of Wimbledon that Audi have already told me the software update is very unlikely to work and that this will likely be a watse of £150, and it turns out it was. The fault is still their and the update has made no difference whats at all.

I am now trying to get Dees of Wimbledon to resolve the fault or replace the gearbox as it should be covered under the warranty, but im being met with resistance from them.

What would you recommend as the best approach to get this resolved? and have you come across anyone who has had a similar issue with the Audi Q5?