Fuel system (diesel) car Audi A6 C5

General information
The fuel system is designed to clean and supply atomized fuel to the engine cylinders in the amount required for the corresponding operating mode. The fuel...

How a diesel engine works
When a diesel engine is running, fresh air, having passed through the filter, is sucked into the cylinders and is strongly compressed, as a result of which it...

Functioning of the fuel injection system
In the high-pressure fuel pump, the fuel is compressed and fed through pipes and injectors into the combustion chamber. Air sucked in by the engine passes...

Fuel heating device
As the outside temperature decreases, the fluidity of diesel fuel decreases due to paraffin crystallization. For this reason, additives are mixed into the fuel...

Glow plugs
Verification conditions The battery voltage must be at least 11.5 V. The fuses in the glow plug supply circuit must be in good condition. The engine control...

Nozzles
Engines 1.9-I-110 hp/2.5-I-TDI The serviceability and correct adjustment of the injectors are very important for the normal operation of the engine. If the...

Main faults of diesel engine control system
Call up and eliminate errors recorded in the self-diagnostic system memory. Before troubleshooting, check that there is fuel in the fuel tank, there is no air...

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A6(C5 AR, 1999-2005)

A6(C5, 1997-2004)

A6(C4, 1994-1997)