dgm said:Exactly JayD and that's the problem with servicing outwith the BMW network. If your car hasn't got a full BMW service history you can't extend the warranty beyond the initial warranty period and that's a big problem when it comes to selling them, most people will want that on a 3 year old Z4M. Additionally BMW can't sell it as an AUC which will cut the value if you're trading it in to them. Like it or not the car with a full BMW service history will sell more easily than one without especially at only 3 years old. Not as straightforward as some think.
In my experience at trade in time, if you want a car from the range thats in demand they will only offer you bottom book anyway, I wont be paying a main dealer for a service again thats for sure.