I was driving my fiat 500 Abarth recently. As I pulled out of a junction on to a busy main road and changed gear my vehicle revved very high and jumped into neutral. I quickly shut the engine off and was stuck on the middle of a busy roundabout with it making a horrendous noise from the gearbox. I managed to get my car towed to my local dealer, but have been told my warranty is void because I have serviced the car myself.

I think this is unfair. I used genuine parts bought from the dealership. I also work as a service technician and am very much aware that no service will inspect a gearbox so it shouldn't come into this matter unless it is due a fluid change under a age and mileage interval of which it has not reached.