Vehicles with diesel engines This type of engine got its name from the German engineer Rudolf Diesel, who built the first self-ignition engine in 1897. Structurally, a diesel engine is similar to a gasoline...
Direct fuel injection With direct fuel injection, fuel is injected directly into the combustion chamber. The fuel pump delivers fuel at a pressure of about 900 bar, and the fuel is injected in two...
Diesel fuel system technical data Engine code AGP AGH/ ALH AHF Idle speed, rpm 875–1000 875–950 875–950 Maximum revolutions, rpm 4950–5150 5000±100 5000±200 Fuel injection pressure: – nominal, bar 190–200 190–200...
Checking the diesel engine preheating system Location of the diesel engine controls in the engine compartment of a vehicle with a TDI diesel engine 1 - valve for exhaust gas recirculation; 2 - intake manifold switching...
Checking glow plugs Verification conditions The voltage of the car's on-board network must be at least 11.5 V. The engine control device must be in good condition. The fuses in the voltage supply...
Removal and installation of glow plugs Removing 1. Disconnect electrical wires from glow plugs. 2. Unscrew the glow plugs. Installation 1. Screw in the glow plug and tighten to 15 Nm. 2. Do not exceed the tightening...
Fuel heating system To increase the fluidity of diesel fuel at low outside temperatures, it must be heated. Heating is produced by additional pumping of fuel, which is returned from the high pressure...
Fuel injectors Warning: When checking the operation of the fuel injectors, never put your hands or any part of your body under the jet of fuel coming out of the injector. The fuel exits the...
Removal and installation of fuel injectors Warning: Maintain cleanliness when handling fuel injectors. Removing 1. Clean the area around the fuel injectors and fuel line union nuts. 2. Unscrew the union nuts and remove the...
High pressure fuel pump injection timing Diesel High Pressure Fuel Pump 1 - bolt, 20 Nm + tighten by 90°. At installation it is necessary to use new bolts; 2 - fuel pump pulley; 3 - nut; 4 - connecting fitting, 25 Nm....
The main malfunctions of the engine management system Before troubleshooting, make sure that there is enough fuel in the fuel tank, the engine has no mechanical defects, the battery is charged and the starter cranks the engine at a...