NOTICE For "extracting" the engine oil with TDI Common Rail engines, the flexible probe with a diameter of 5 mm and length of 750 mm must be used to make sure that this has been inserted completely into the guide tube of the oil dipstick.

Special tools and workshop equipment required

• 13 mm socket wrench
• 32 mm socket wrench

• Remove central soundproofing
• Unplug the connector -1- of the pump for the active cycle after the motor has run.
• Undo the generator line -2- with clamp -3- and turn in the -direction of the arrow-.

• Unscrew the oil drain plug -1- using a 13 mm socket and drain the engine oil from the screw connection -3-.
• Unscrew the oil drain plug from the oil sump and drain the engine oil.
• Tighten the screw connection -3- with a 32 mm socket wrench .
• Remove the filter insert -5-.

NOTICE Observe environmental requirements for disposal.

• Lubricate the new O-ring -4- with engine oil and replace the filter insert -5-.
• Tighten the screw connection -3- with a 32 mm socket wrench to the specified tightening torque.
• Insert the O-ring -2- in the groove of the oil drain plug of the screw connection -1- and tighten with the specified tightening torque using a 13 mm socket wrench .
• Screw the oil drain plug of the oil sump in with a new sealing ring and tighten at the specified tightening torque.

NOTICE If the sealing ring of the oil drain plug for the oil sump cannot be replaced separately, the complete screw must be replaced - Electronic parts catalogue .

• Fit central soundproofing.
• Top up engine oil.