Installing Drive Belt

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. Guide the drive belt with the flat side -1-  first past the vibration damper -2-  .

   If you intend to reuse the old belt, make sure to observe the running direction marked earlier. 

   1. 1.1. Position the belt on the running track on the vibration damper.
      Fig 1: Identifying Drive Belt And Vibration Damper

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2. Guide the drive belt -1-  to the left past the coolant pump pulley.
   Fig 2: Identifying Guide Drive Belt And Coolant Pump

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   1. 2.1. Then guide the flat side of the belt through between the pulley and engine carrier -arrow-  .
      Fig 3: Locating Drive Belt (Flat Side) On Coolant Pump Pulley

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3. Fit the drive belt on the pulleys for the air conditioning compressor -4-  , power-steering pump -3-  and generator -2-  .
   1. 3.1. Then, pre-position it on the tensioning roller -7-  .
      Fig 4: Drive Belt Routing Diagram

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4. Turn the belt tensioner -3-  clockwise as far as it will go using an open-ended wrench -2-  (a/f 32) and at the same time place the drive belt -1-  on the tensioning roller under the generator.
   Fig 5: Slackening/Tensioning Drive Belt

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5. Allow the belt tensioner to slide back slowly into tensioning position.

   Information 

   • The drive belt must be positioned correctly on all pulleys. 
6. Check belt routing and position.
7. Fit special screw for engine carrier (M10 x 130) -1-  with the spacer sleeve -2-  .
   1. 7.1. To do this, insert the screw through the bores in the rear apron and rear carrier and the spacer sleeve.
      Fig 6: Identifying Special Screw On Engine Carrier And Spacer Sleeve

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8. Tighten special screw.

   → Tightening torque: 65 Nm (48 ftlb.) 

   Fig 7: Tightening Special Screw

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9. Fit number plate.