Ribbed Belt Drive Overview
Ribbed Belt Drive Overview
1 Ribbed Belt
• Mark the running direction before removing. Reversing the running direction on a used belt can destroy it.
• Check for wear.
• When installing, make sure it is seated correctly on the pulleys.
• Removing and installing, refer to => [ Ribbed Belt ] Ribbed Belt.
2 Bolt
• 20 Nm + an additional 90° (1/4) turn.
• Always replace.
• Use a shim, refer to => [ Vibration Damper Threaded Connection ].
3 Shim
• Always replace.
4 Dust Cap
5 Generator
• Removing and installing.
• To make it easier to position the generator, push the threaded bushings for the generator bolts back slightly.
6 Bolt
• 22 Nm
7 Dust Cap
8 Bolt
• 25 Nm
9 Idler Roller
• Pay attention to the installed position.
10 Bolt
• 40 Nm
11 Generator Bracket
• Tightening specification and sequence, refer to => [ Generator Bracket Bolt Tightening Specification and Sequence ].
12 Bolt
• 22 Nm
13 Idler Roller, Right
• Pay attention to the installed position.
14 Dust Cap
• Only on vehicles with an additional idler roller.
15 Bolt
• 22 Nm
• Only on vehicles with an additional idler roller.
16 Bolt
• 22 Nm
17 Coolant Pump Pulley
• Installed position: The word "front" indicates the direction of travel.
• Counter hold using the spanner wrench (3212) to remove.
18 Bolt
• 9 Nm
19 Coolant Pump
• Removing and installing, refer to => [ Coolant Pump ] Coolant Pump.
20 Idler Roller, Left
• Only on vehicles with an additional idler roller.
• Pay attention to the installed position.
21 Bolt
• 22 Nm
• Only on vehicles with an additional idler roller.
22 Idler Roller Bracket
• Only on vehicles with an additional idler roller.
23 Bolt
• 22 Nm
24 Power Steering Pump
• Installed position: the word "front" indicates the direction of travel.
25 Power Steering Pump Pulley
• Counter hold using the spanner wrench (3212) to remove.
27 Seal
• Always replace.
28 Accessory Bracket
29 Bolt
• 40 Nm
30 Bolt
• 25 Nm
• Check for washers.
31 A/C Compressor
• Removing and installing.
• Observe the alignment sleeves - item 32 - when installing.
32 Alignment Sleeve
• Ensure they are seated correctly in the bracket.
33 Bolt
• 25 Nm
34 Ribbed Belt Tensioner
Depending on the vehicle equipment level, the bolt in the cylinder block for the belt tensioner can be designed to use an M10 or M11 bolt. The bolt and the belt tensioner must absolutely be perfectly aligned.
• Pivot using a T60 TORX(R) socket.
35 Bolt
Differing threads in the cylinder block.
Before assembling, check whether the threads are M10 or M11.
Use the proper size bolt. The engine could be damaged.
The bolt, belt tensioner and hole in the cylinder block must absolutely be perfectly aligned.
• M10 bolt: 50 Nm + an additional 90° (1/4) turn.
• M11 bolt: 60 Nm + an additional 90° (1/4) turn.
36 Vibration Damper
• Mark the vibration damper installed position.
Generator Bracket Bolt Tightening Specification and Sequence
- Install the bolts in sequence - 1 through 4 -.
- Tighten the bolts in sequence - 1 through 4 - to 40 Nm.
Vibration Damper Threaded Connection
1 Bolt - 20 Nm + an additional 90° (1/4) turn. Always replace.
2 Shim, always replace
3 Vibration damper