Drive Belt Tensioner: Service and Repair

WM 137319 Removing and installing belt tensioner on DFI engines

Technical values





Preliminary work

Information

Always read the information provided in the Technical Information.-> 137300 V6 engine: Belt tensioner defective (19/09)

1. Slacken the drive belt. -> 137819 Removing and installing drive belt on V6 DFI engines - section on "Removing" Service and Repair

Removing belt tensioner

1. Screw M8 x 50 screw -arrow- into the belt tensioner.
Slacken the belt tensioner until the drive belt is loose.





Loosening belt tensioner

2. Loosen fastening screws for belt tensioner. -arrows-
3. Remove belt tensioner.





Fastening screws for belt tensioner

Installing belt tensioner

1. Screw a screw (M8 x 50) into the new belt tensioner until the belt tensioner is slightly tensioned. -arrow-





Pre-tensioning belt tensioner

2. Fit belt tensioner.
3. Tighten fastening screws for the belt tensioner. -arrows- => Tightening torque: 25 Nm (19 ftlb.)





Fastening screws for belt tensioner

Subsequent work

1. Fit drive belt. -> 137819 Removing and installing drive belt on V6 DFI engines - section on "Installing" Service and Repair