FixVault

11 51 Coolant Pump With Drive

N55 ENGINE (2016-2018): 

11 51 COOLANT PUMP WITH DRIVE - TIGHTENING TORQUE SPECIFICATION

  Type Thread Tightening specifications Dimension
1AZ Coolant pump to crankcase N55 M8 x 26 Replace screws.
Thread repairs exclusively with aluminium Helicoil threaded insert.
Jointing torque and angle of rotation must be observed without fail.
Jointing torque
Angle of rotation
10 Nm 90°
2AZ Coolant pump to holder (only for vehicles with holder). N55 M8 x 27 Replace screws.
Thread repairs exclusively with aluminium Helicoil threaded insert.
Jointing torque and angle of rotation must be observed without fail.
Jointing torque
Angle of rotation
10 Nm 90°
3AZ Coolant hose between coolant pump and coolant thermostat. N55 L42-48   3 Nm
4AZ Coolant hose between coolant pump and feed line. N55 L42-48   3 Nm
5AZ Auxiliary water coolant holder for EME to retaining bracket N55, F10h/F01h/F02h/F30h M6 x 14   10 Nm

S55 ENGINE (2019-2022): 

11 51 COOLANT PUMP WITH DRIVE - TIGHTENING TORQUE SPECIFICATION

  Type Thread Tightening specifications Dimension
1AZ Coolant pump to crankcase S55 M6x25
M6x52
  10 Nm
2AZ Coolant hose between coolant pump and feed line. S55 M6   10 Nm