I recently bought an Audi A4 Avant 1.8SE from a dealer. It was registered in 2002 so I assumed (incorrectly) that it was a B6 model and priced it accordingly. it was priced at £3795. It had completed 71,000 miles with no cam belt change. I test drove it briefly and had a look round, and it seemed clean and tidy. We came to an agreement that if I paid the asking price the dealer would get the cam belt, pulleys, thermostat and water pump changed. There was no spare key and the electric window master controller on the driver's side wasn't fully functional. Both, I was informed, would be sourced and replaced.

It's now four weeks since I picked up the car. I'm still awaiting the invoice, spare key and electric pack and obviously have realised my mistake with how it was priced. In my communication the dealer admitted he had priced it as a B6 model. In that time it has become apparent that first and reverse gears can sometimes be difficult to select, suggesting a clutch problem, and the steering has a creaking noise that either wasn't present on the test drive or I didn't notice. I just wonder where I stand legally on the whole subject.