11 40 000 Checking the oil pressure (N47D20 K/U/O/T 1)

Special tools required: 

• 11 4 050
• 13 3 061
• 13 3 063
• 13 6 051
• 13 6 054

Necessary preliminary tasks: 

• Remove oil pressure switch  . See 12 61 280 REMOVING AND INSTALLING/REPLACING OIL PRESSURE SWITCH (N47 D16/20 K/U/O/T 1) or 12 61 280 REMOVING AND REFITTING/REPLACING OIL PRESSURE SWITCH (N47 D20 O 1 WITH SCR) .

Install special tool 11 4 050 with sealing ring (1) in place of oil pressure switch.

Check engine oil pressure with DIS Tester 

Attach special tool 13 6 054 with sealing ring (1) and special tool 13 6 051 and connect to DIS Tester.

Check engine oil pressure with pressure gauge 

Install special tool 13 3 063 and special tool 13 3 061 (pressure gauge).

Fit pressure gauge 13 3 061 .

Check engine oil pressure.

Start engine and run at idle speed.

SETPOINT VALUE .

Remove all special tools.

Reassemble vehicle and set in horizontal position.

Switch off engine, wait approx. 5 minutes and then check engine oil level.

Top up engine oil if necessary.