About Us and what we do !


Cornerstone Garage was established in 1998 as an Independent Mercedes Benz specialist.

We have the equipment and experience to deal with any work required on your Mercedes Benz.

Our labour rate is a fraction of the main dealer rates and is also very competitive compared with other independent specialists.

Our service rates reflect even greater value for money with our fixed rate service prices for vehicles with service assyst.

There is a substantial parts department stocking genuine Mercedes Benz parts to allow us to keep the most common service and repair parts in stock.

In 2014 we changed our name to Cornerstone Autos Limited to reflect the addition of Servicing and MOT’s on Motorcycles.


We can work on any marque of vehicle and or aim is always to provide you with the best service available but not at main dealer prices.

We also now have a new VOSA approved MOT test bay for Motorcycles so we are now able to offer classes 1,2,4 & 7 which includes Cars,Vans,Motorhomes,Long Vehicles,Motorcycles,Mopeds,RV’s,Quad bikes,Campers and Commercials.

What happens to my new car warranty if I have my car serviced outside of the main dealerships ?

Due to EEC regulations you no longer have to get your car serviced at a main dealer to maintain your vehicles warranty so book in for a service with us now