John Hamilton Diagnostics

John Hamilton Diagnostics North East UK based. Time served technician with a strong dealer background in Mercedes Software and

This is what sets us apart from the others. Fitting a factory supplied engine that gives 2 year dealer warranty. There...
21/05/2026

This is what sets us apart from the others. Fitting a factory supplied engine that gives 2 year dealer warranty. There is a difference.

Here at the garage it’s all about quality. For ages now we’ve used only the best oils we can find. Moving forward for...
14/05/2026

Here at the garage it’s all about quality. For ages now we’ve used only the best oils we can find. Moving forward for our car and van customers we are able to give you the choice of the oils we use to service your vehicles. We have Petronas oils in stock and now also have Mercedes branded oils available.

Did you know we do aircon servicing. We have both machines. Old and new type gas.
20/04/2026

Did you know we do aircon servicing. We have both machines. Old and new type gas.

One of today’s little missions was this fantastic 4x4 sprinter. It had recently had injector work done at another garag...
15/04/2026

One of today’s little missions was this fantastic 4x4 sprinter. It had recently had injector work done at another garage and kept getting a misfire. We were able to find the fault as burnt and worn pins in the injector plugs. We were able to source a complete top end loom, then solder in the repair wiring. There’s a reason why our customers travel to us. We aim to have your vehicle fixed first visit and out earning its keep.

As we get towards finishing the workshop we’re now able to get the bigger vans lifted on the new 5.5 ton van ramp. This...
15/04/2026

As we get towards finishing the workshop we’re now able to get the bigger vans lifted on the new 5.5 ton van ramp. This is a great addition to the garage and is proving its might lifting the biggest vans. If you have a big Merc van other garages are struggling to get in please get in touch.

Address

Chester Le Street
Chester-le-Street
DH23

Telephone

+447946530920

Website

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