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Remove/Install Poly-V Belt - AR13.22-P-1202SVZ

Engine 279 in model 223 

G16190281Courtesy of MERCEDES-BENZ USA

Shown on removed engine 

WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
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
REMOVINGINSTALLING Remove/install     
1 Remove engine cover. INSTALLATION IMPORTANT : Install the engine cover only after the engine test run. AR01.10-P-2405SVZ
2 Remove left and right air intake pipe to air filters.    
3 Release poly-V-belt (1) and remove.    
REFER TO BASIC KNOWLEDGE Routing diagram IMPORTANT Turn hexagon (2.1) at tensioning device (2) in direction of arrow until tensioner pulley (2.2) can be locked with a suitable pin.
Slide a pin with a diameter of 5 mm in bore (arrow A).
INSTALLATION IMPORTANT : Mount poly-V-belt (1) in accordance with routing diagram.
Turn hexagon (2.1) at tensioning device (2) in direction of arrow, pull pin out of bore (arrow A) and slow relieve tensioner pulley (2.2) of tension.
GF13.20-P-0001-01SVZ 
INSPECT Check     
4 Check poly-V-belt (1) for damage and wear.    
REFER TO MAINTENANCE   If damage or wear is present,
↓
Replace poly-V-belt (1).
AP13.22-P-1351-01A 
5 Check belt pulleys, guide pulleys and tensioning device (2) for soiling, damage and wear. If soiling is present:
↓
Clean corresponding component part.
If damage or wear is present,
↓
Replace corresponding component.
Remove/install poly-V-belt guide pulley
AR13.20-P-0015SVZ 
    Remove/install poly-V-belt tensioning device AR13.25-P-3220SVZ 
    Remove/install alternator belt pulley AR15.40-P-5710SVZ
    Remove/install coolant pump AR20.10-P-1271SVZ
    Remove/install belt pulley AR03.30-P-1700SVZ
    Refrigerant compressor, remove/install AR83.55-P-5310SVZ
6 Install in the reverse order.    
INSPECT Check     
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
7 Perform an engine test run and make sure that the poly-V belt (1) is positioned correctly. IMPORTANT Visual check.