Note: If the fuse is removed, the power supply to the fuel pump control unit is interrupted.
Start the engine and let it run until it stops. Switch off the ignition. Loosen clamps -1- and -2- and remove air pipe.
Disconnect connector -2- and remove screw -1-.
Remove ignition coils with output stages. Remove spark plugs with a spark plug wrench, e.g. -3122 V-. Check compression with compression tester -VAG 1763-. Ask the 2nd mechanic to fully depress the gas pedal and turn the engine crankshaft with the starter until the instrument readings stop increasing. Repeat this for each cylinder.
Compression amount
Assembly
Installation in reverse order. Install spark plugs, tightening torque 22 Nm. Installation of ignition coils with output stages Since the electrical connectors were disconnected and the engine was cranked by the starter, errors were stored in the event recorder of the engine control unit: clear the event recorder and generate a readiness code.