The Forum Garage in Blandford Forum recommended

[Tazar]

I’ve used Rob, a self employed motor engineer, here for years and he’s given me excellent garage services. I’ve taken various German cars, Saab turbos, 4wds, both relatively new and classics. He analyses problems and does the minimum to achieve full working order. Obviously routine services and if you have something different to request then he’ll get on and do it.
If you live locally give him a try. I’m not associated with the garage, just a satisfied customer.