time for my standard comment on all posts relating to this topic, in the hope that as many people as possible are made aware:

If ever you need a car checked, you only need to go to the Bosch Service Center. Qr.500/- for a bumper to bumper inspection or Qr. 250/- for a core systems check like engine/transmission.

Three branches in Industrial Area and Wakra. International brand with the needed experience and equipment.

I don't see why anyone even bothers with those shady places when you got the best in the business right here in Qatar.

Failing all else, the dealership is the best option, at a price of course