Radiator Cooling Fan: Service and Repair
WM 190819 Removing and installing electric fan - Turbo
Technical values
Preliminary work
Preliminary work for removing electric fan
1. Remove front left or right wheel. -> 440519 Removing and installing wheel - section on "Removing" 440519 Removing and installing wheel
2. Remove front left or right wheel housing liner. -> 505619 Removing and installing front wheel housing liner - section on "Removing" Service and Repair
3. Remove front apron. -> 631519 Removing and installing front apron - section on "Removing"
Removal
Removing electric fan (with frame)
Information
Specifications for wrench sizes (a/f specifications) for screw heads are described as follows:
- Torx screws: (E.) for external Torx, (T.) for internal Torx.
- Hexagon-head bolts (internal and external hexagon): Wrench size (a/f)
1. Remove holding strut -1- by unscrewing the M6 nuts (a/f 10) -2-.
Side bracket and strut
2. Release and pull off plug connection -1- for electric fan.
Cable connector for fan
3. Remove sheetmetal clips -3- and washers used to secure the radiator to the bracket.
3.1. Remove hexagon-head bolt (a/f 10, M6 x 16) -1- on the hose holder.
Side bracket
4. Unscrew screw (a/f 10, M6 x 20) -1- on the control unit holder -2-.
4.1. Remove control unit holder from the bracket.
The control unit holder is located on the radiator bracket at the right in direction of travel.
Control unit holder.
5. Unclip vent line -1- at the holder for the bracket -2- in the wheel housing.
Vent line
6. Unscrew hexagon-head bolt (a/f 13, M8 x 12) -1- used to secure the bracket -2-.
Bottom bracket
7. Unscrew M8 nuts (a/f 13) -2-.
7.1. Carefully pull the bracket downwards and pull the hose holder from the guide.
Side bracket
8. Remove the bracket by pulling it downwards.
9. Unscrew the tapping screws (T 25) -1- used to secure the frame at the outside.
9.1. Bend electric fan with frame from the outside in and pull it out of the guides -2-.
Cooling fan
10. Remove electric fan from frame.
10.1. Disconnect electric line from the frame. Remove tie-wrap.
10.2. Loosen and unscrew three M6 hexagon nuts (a/f 10) -1-. Remove electric fan.
Electric fan with frame
Installing electric fan (with frame)
1. Install electric fan in frame.
1.1. Position electric fan in frame. Screw in and tighten three M6 hexagon nuts (a/f 10) -1-.
=> Tightening torque: 10 Nm (7.5 ftlb.)
1.2. Secure electric line to the frame with a tie-wrap.
Electric fan with frame
2. Slide electric fan with frame into the guides -2-.
2.1. Bend electric fan with frame from the inside out.
2.2. Screw in and tighten tapping screws (T 25) -1-.
Cooling fan
3. Install bracket from below.
3.1. Fit hose holder into the guide and screw in and tighten the screw (a/f 10, M6 x 16) -1-.
=> Tightening torque: 13 Nm (9.5 ftlb.)
3.2. Screw in and tighten nuts (a/f 13, M8 x 12) -2-.
=> Tightening torque: 23 Nm (17 ftlb.)
3.3. Fit and secure washers and sheetmetal clips -3-.
Side bracket
4. Secure bracket -2- at the bottom.
4.1. Screw in and tighten screw (a/f 13, M8 x 12) -1-.
=> Tightening torque: 23 Nm (17 ftlb.)
Bottom bracket
5. Clip in vent line -1- at the holder for the bracket -2- in the wheel housing.
Vent line
6. Connect plug connection -1- for electric fan.
Cable connector for fan
7. Fit holding strut -1- and tighten M6 nuts (a/f 10) -2-.
=> Tightening torque: 13 Nm (9.5 ftlb.)
Side bracket and strut
Subsequent work for installing electric fan
1. Install front apron.-> 631519 Removing and installing front apron - section on "Installing"
2. Install wheel housing liner at the left and right. -> 505619 Removing and installing front wheel housing liner - section on "Installing" Service and Repair
3. Fit front right and left wheel. -> 440519 Removing and installing wheel - section on "Installing" 440519 Removing and installing wheel