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SMS Motors Whitchurch

Vehicle Repairs & Sales - Motorhomes, Caravans, Towbar Specialists & 4x4

What We Do

Hydrogen Engine Carbon Cleaning

What Is Hydrogen Engine Carbon Cleaning?

Engine Carbon Cleaning is a process where a machine equipped with a Hydrogen Generator and Oxy-Hydrogen gas is created by using electrolysis of distilled water. Once the gas is produced, it is simply transferred into the engine through a tube into the air intake of the vehicle being cleaned.
The process restores the optimum performance of your engine.
Using hydrogen technology, carbon deposits are removed from inside of your engine which naturally build up during the lifetime of the vehicle.

Possible causes of carbon build up

Benefits of having your engine cleaned

Towbars for Caravans and Trailers

“My motorhome might be different, can I still have a towbar?”

We make sure you get the product you want EVERYTIME!

Its one of the first questions we’re asked here at SMS and we can help you make the right and safe decision on towing.

As of 2012 there have been many law changes in the fitting of towbars to Motorhomes. We are dedicated in giving the best services by supplying the right product to you and your Camper, Motorhome or RV.



Our expert mechanics are trained to service any make and model of car. Maximise the lifespan and value of your car with regular Car servicing. Friendly & experienced family run business.


Checking lights, tyres, exhaust and operations of brakes and steering. Ensuring your engine is 'tuned' to run in its peak condition. Checking hydraulic fluid and coolant levels. Checking the cooling system (from radiators in your car to pumps and hoses)


A car diagnostic test can determine if your vehicle has issues with its engine, exhaust, transmission, ignition coils, oil tank, throttle, and more.

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