Diesel injection system Volkswagen Polo 4

Methods of mixture formation in diesel engines
In a diesel engine, clean air is sucked into the cylinders and highly compressed. This causes the temperature in the cylinders to rise above the autoignition temperature of the...

Preheating system
The main parts of a glow plug are the housing and the pin heating element pressed into it. Note: Due to the good starting properties of the direct combustion diesel engine,...

Removal and installation glow plugs
Removal Disconnect the glow plug connectors. Remove the glow plugs, for example, using the HAZET 2530 or VW/AUDI-3220 socket wrench. Installation Using a socket wrench, screw in...

High pressure fuel pump/nozzle/unit-nozzle
Distributor type injection pump for 1.9-I-SDI engine 1 - bolt, 25 Nm 2 — fuel injection pump gear 3 - hub mounting nut Do not release it, because it will be impossible to perform...

Checking the preheating system
Checking the work Disconnect the coolant temperature sensor plug connector at the upper coolant connection pipe. Note: Disconnecting the plug connector simulates a cold engine...

Diagnostics of faults in diesel engine injection systems
Before detecting a fault using diagnostics, the following prerequisites must be met: conditions for starting errors are excluded. There must be fuel in the tank, the engine is...

Saving fuel while driving
Driving style has a great influence on engine efficiency. Below are some rules for careful handling of the gas pedal (accelerator). Immediately after starting the engine, even in...

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Polo 4 Polo 3