Diesel injection systems In a diesel engine, clean air is sucked into the cylinders and compressed there. Due to this, the temperature in the cylinders rises above the auto-ignition...
Turbocharger The BMW diesel engine is equipped with a turbocharger. In the turbocharger, two wheels, turbine and compressor, are located on one shaft, which are located in...
Exhaust Gas Recirculation (EGR) The power system of diesel engines is equipped with an exhaust gas recirculation system (EGR), allowing to reduce the amount of harmful nitrogen oxides emitted...
Fuel filter preheating system At low ambient temperatures, the fluidity of diesel fuel decreases due to the crystallization of the paraffin contained in it. Diesel fuel gets thick like...
Diesel engine preheating system When the engine is cold, it is not possible to create a high temperature in the combustion chamber, which allows self-ignition of the fuel, due to compression...
Checking Glow Plugs — Model 530d Withdrawal Test prerequisite: battery voltage must be greater than 9 volts. Charge the battery if necessary. Attention. If the glow plugs are malfunctioning,...
Removal and installation of glow plugs — model 530d Withdrawal Switch off the ignition. Disconnect ground wire (-) battery. The battery is located in the luggage compartment behind the right side trim....
Removal and installation of nozzles — model 525tds Defective injectors can cause heavy knocking in the engine and raise the suspicion of damaged bearings. With such suspicions, the engine should be switched to...