Cardiff Diesel Services

  • Cardiff Diesel Services 02920 787187

Service and Support


Service and Support


We understand that reliable and efficient power systems are vital. We appreciate the importance of knowing your equipment is well maintained and available when you need it. We offer the peace of mind that you can call on a service provider for specialist support whether it’s for routine maintenance or emergency response.

Our trained engineers and staff are on hand to support you with technical support and servicing whenever you require it. We know that keeping your equipment maintained and serviceable is paramount to keeping your operations running.

Our engineers based in Cardiff are able to offer support across Wales, the South West and further afield, with a mobile fleet of fully equipped service vehicles able to reach you quickly.


Our aim is to provide first class support and technical advice to our customers. Great customer service, reliability and quick response times are our core aims, delivered by our team of experienced and professional engineers.
We offer:

  • Emergency call out
  • Tailored preventative maintenance agreements
  • Service agreements
  • Product support
  • Warranty support
  • On site servicing and repairs
  • Fault diagnosis
  • Power system installation
  • Refurbishment and repair of existing plant
  • Supply and installation of fuel tanks
  • Supply, installation, upgrade and repairs of control panels
  • Fuel pump and injector repairs and maintenance
  • Load bank testing
  • Fuel testing and polishing
  • Hire of generators and ancillary products
  • Performance and safe handling checks
  • Oil testing

Industrial Service and Support Packages

For our marine customers, we provide servicing and maintenance for inboard and outboard engines, whether it’s a commercial vessel, small motorboat, sailing yacht or large motor cruiser. Our team of engineers can offer you advice, help and support to ensure your engine is well maintained and you have the peace of mind of knowing that it’s in good working order.

In addition, we can offer the help and support of the boatyard services of our sister company, The Marine Group, more information about their services can be found at

We offer:

  • Engine servicing
  • Full engine and drive rebuilds
  • Engine maintenance
  • Engine repairs
  • Engine overhauls
  • Installation of new & reconditioned engines
  • Engine alignment
  • Fuel injection – repair, overhaul and calibration
  • Pumps and compressors- repair and overhaul
  • Coolers – Overhaul and pressure testing
  • Instrument and control system testing and calibration
  • Propulsion systems
  • Oil testing
  • Cleaning out of raw water strainer
  • Greasing gear/throttle control linkages
  • Checking and replacing as necessary: oil filters, impeller, anodes, air filters, v belts, oil
  • level
  • Engine report
  • Cleaning of engine bay
  • Winterisation
  • Fuel testing and cleaning service


  • Stern drives
  • Cutlass bearings
  • Anodes
  • Propeller servicing
  • Stern glands
  • Shafts
  • Bow thrusters
  • Seacock valves
  • Sail drives
  • Rope cutters



  • Mercury/ Mercruiser Dealer
  • Yanmar Dealer
  • Beta Marine Dealer
  • Perkins Marine Dealer
  • Mermaid Marine Dealer
  • WaterMota Dealer
  • Yamaha Service Centre
  • Suzuki Service Centre
  • Tohatsu Service Centre