Having been around 7 garages in the area of Roquetas de Mar I was struck by the poor diagnostic ability and greed of the owners. The VW main agent is dreadful!
Finally I found a garage that sorted my problem and did not attempt to rip me off. If anyone in this area needs a garage I can recommend Automocion RH in the Urb of Roquetas. Tel 627 440 701.
The owner is a very decent man called Ruben who repairs cars for lots of foreigners Brits, Durch, German and Spanish. It's a small back street place and, like a good small garage in Britain, he gives decent service with a smile.
A good garage is like finding a decent dentist so if you have problems pay him a visit.