Welcome to M and C Diesel Services Ltd
Your trusted partner for dealer-level diagnostics and diesel fuel injection services
Our Specialist Services
Dealer Level Diagnostics
State-of-the-art diagnostic tools for all makes and models
- Latest diagnostic equipment
- All vehicle makes covered
- Expert fault finding
DPF Cleaning & Servicing
Professional DPF cleaning using MetClean XL technology
- Advanced cleaning system
- Restore DPF performance
- Competitive pricing
Engine Tuning
Professional engine remapping and performance optimization
- Improved fuel economy
- Enhanced performance
- Custom tuning solutions
Fuel Injection Services
Specialist diesel fuel injection repairs and testing
- Injector testing & repair
- Pump diagnostics
- Common rail specialists
Fuel Injection Brands We Work With







What Our Customers Say
We can't THANK these guys enough!!! They are not pirates, nor flyboys! They are SOOOO 100% Professional. And So bloody Nice!
We are an old couple in our 70's, and was advised by our local repair shop C&C in Chelmsford who always do our repairs etc, to go to M&C Deisel Repairs, because the thing that was wrong with the vans engine HAD to be done by specialists.
So they gave us M&C's number and advised us to go there. We were a bit dubious in going to another repair shop as we'd only ever put our trust in C&C's hands for years, as does our kids. But we took a chance on M&C and booked an appointment with them anyway. We were gob smacked when they told us what the repair in the engine would cost including VAT etc of £3400.00 ! But it had to be done, so we paid them, and cried all the way home on the bus ride for 2 & a Half hours, after we left the van with them for over a week. And then we had to use public transport everywhere for that week, and hated every trip to go buy something, what with every stop the buses had to make! AND GETTING ON THE WRONG BUSES! And wondered how we ever got along before without our own transport!!! So when the guys eventually called us to say our van was ready to be picked up, we were elated! So off we went on the buses again for another 2 hour and a half trip to go retrieve out beloved van. (which only took us 40 mins in our van to get it to them originally!) How we hated the buses by then!
But in M&C's office we had a chat with the manager/accountant, and his crew who are such lovely chaps, came in to tell us what they had done for the van. But the biggest surprise we got from them was a £1000.00 refund!!! As they done something else with the exhaust which was choking up all the time, and affecting the engine, because of its filter. Which they said was a big problem for vans like ours. But for them to give us a £1000.00 back was extraordinary! Any other repair shop would have just binned the money, and we would have been none the wiser! AND FOR THEM TO HAVE BEEN SO HELPFUL AND HONEST, WE GAVE THEM £160 BACK FOR A DRINK FOR THEM ALL. Then skipped out of there, holding hands like a couple of 10yr olds! So now that we have our beloved van back, which we had converted it to a camper van, we are making plans and looking forward now to a long trip to Scotland! Knowing that our vans up and running and safe to use again. But we want to still GIVE A BIG SHOUT OUT TO THESE GUYS, AND A BIG THANK YOU FROM THE BOTTOM OF OUR HEARTS FOR BEING SO BLOODY NICE, PROFESSIONAL, AND ABOVE ALL HONEST!
If only I had their URL I could write this review to TRUST PILOT! But I will get this info from them after the bank holday.
AND ALSO A BIG THANK YOU TO C&C IN CHELMSFORD FOR SENDING US TO THEM!
FROM A WELL HAPPY, KAT & STEVE ! XXX
Outstanding service from M & C.
My car had been having problems for over 5 years. Several diagnostics and 5 MOTs failed to identify the issue, but M & C finally figured it out!
What impressed me even more was that they didn’t simply replace the part. They went the extra mile and repaired it instead, saving me over £1,000 in the process.
You’re certainly in safe hands with this company. Honest, knowledgeable and clearly committed to doing the right thing for their customers.
Highly recommended! ⭐⭐⭐⭐⭐
Partners car had injector problems. They diagnosed it and fixed it and even kept it an extra day just to make sure it was okay. It now runs better than ever!
Good services,professional guys.