Replacing Belt Tensioner

Clamp belt tensioner in a vice at the hexagon.
Use protective jaws!
Unscrew screw -arrow- on the lever.

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Damper/tensioner →
- When fitting the damper element/tensioner, make sure that the letterng can be read from outside.
- The bellows must be facing upwards.
Fit new tensioner on the holder with the deflection roller and check installation position.
Tighten screw (M8 x 33).

> Tightening torque 23 Nm (17 ftlb.)

Recommended tools for removing and installing the top screw:
- > V.A.G 1331A - Torque wrench, 6-50 Nm/4.5-37 ftlb.
- Internal Torx bit T50 with width across flats 13 mm from > VAS 6928 - Socket wrench set, 39-piece
- Socket-wrench insert T50 from > VAS 6947 - Ring Socket Insert, a/f 13

Position belt tensioner from above and secure it with the top fastening screw -arrow- .

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Installing belt tensioner
Fit and tighten bottom screw -arrow- on the tensioner. Fit from underneath!
> Tightening torque 27 Nm (20 ftlb.)

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Belt tensioner with screws
Tighten top screw.
Use ecommended tool.

> Tightening torque 27 Nm (20 ftlb.)
Fit and tension the drive belt.
> 137855 REPLACING DRIVE BELT