Remove/install poly-V belt

AR13.22-P-1202MRM

Remove/install poly-V belt

11.06.2019

Engine

264 in model 205, 253

with code B01 (48V technology)

1

Poly-V-belt

2

Multi-tooth pin

3

Tensioning device

5

Guide pulley

 Warning

Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.

No parts of the body or limbs should be within the operating area of mechanical components when moving components.

AS00.00-Z-0009-01A



Remove

1

Remove charge air cooler.

AR09.41-P-6817MRI

2

Turn tensioning device (3) at multi-tooth pin (2) counterclockwise and lock with suitable assembly pin.

3

Remove poly-V-belt(1).



Check

4

Check poly-V-belt (1) for damage and wear.



AP13.22-P-1351-01A

If damage and wear are present,



Replace poly-V-belt (1).

5

Check clamping device(3) for damage and wear.

If damage and wear are present,



Replace clamping device (3).

AR13.25-P-3220MRI

6

Check guide pulley (5) for damage and wear.

If damage and wear are present,



replace guide pulley(5).

 Screw/bolt, guide pulley to timing case

*BA13.25-P-1003-01EA

7

Check belt pulley of the engine for damage and wear.

If damage and wear are present,



Replace belt pulley.

AR03.30-P-1700MRI

8

Check belt pulley of the starter-alternator (M1/10) for damage and wear.

If damage and wear are present,



Replace starter-alternator (M1/10).

AR15.40-P-5060MRI

9

Check belt pulley of the refrigerant compressor with magnetic clutch (A9/7) for damage and wear.

If damage and wear are present,



replace refrigerant compressor with magnetic clutch (A9/7).

AR83.55-P-5310MRI



Install

10

Prepare tensioning device (3) for installation.

In the event of torn poly-V belts(1).

AR13.25-P-3220-01MRH

11

Mount poly-V-belt (1).

AR13.22-P-3902-02MRH


Do not use belt wax or similar products.
This leads to slipping of poly-V-belt(1).

12

Turn tensioning device (3) at multi-tooth pin (2) slightly counterclockwise, remove assembly pin and tension poly-V-belt (1) with tensioning device (3).

13

Install charge air cooler.

AR09.41-P-6817MRI

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

14

Conduct engine test run while checking for proper operation of the engine.

 Belt tensioning device

Number

Designation

Engine 264

BA13.25-P-1003-01EA

Screw/bolt, guide pulley to timing case

Nm

45