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Diesel Servicing

diesel servicing

Diesel powered vehicles can have service intervals as low as 3 months/5,000kms however if the vehicle is not used off road or in dusty conditions that can be extended to 6 months 7500kms. Once again the modern diesels can have service intervals the same as the new petrol's.

In many ways a diesel engine is less complicated than a petrol engine, with greater reliability and a longer working life. There is little difference between servicing a diesel and a petrol engine except that the diesel has no ignition system to worry about. However, the fuel system needs very careful attention, as part of the regular service, to prevent dirt and water in the fuel damaging it. Filter/water trap: The very small working clearances in diesel engine injector pumps and injectors means it is vital that the fuel passing through the system is always clean. The filter element is disposable and should be replaced at the recommended service intervals or sooner. The fuel filter also traps any water in the fuel and you should drain it at regular service intervals, or sooner if the engine is suffering from misfiring. Diesel engine oils need to be changed as specified, as they are made to keep the injectors burn cleanly & collect the impurities from combustion.

The same service criteria apply when servicing a diesel or European diesel vehicle (Audi, BMW, Jaguar, Land Rover, Mercedes, MINI, Volvo, VW, Porsche and more) except for:

  • Use correct spec oil
  • Replace diesel filters regularly to stop damage to injectors & SCV (Suction control valve) issues
  • Injector replacement intervals
  • DPF (DPF or Diesel Particulate Filter)

This filter is located in the exhaust system of most modern diesel vehicles. The purpose of the DPF is to catch the soot particles in the exhaust stream before they escape into the atmosphere. This is done by having a honeycomb filter fitted in the exhaust system, usually as close to the engine as possible. The filter traps the particles in its honeycomb structure and the particles are burnt off once the temperature of the DPF gets to approx 600C.