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Home >> Mercedes Benz >> 2018 >> S450 Base >> Repair and Diagnosis >> Engine Mechanical >> Accessory Drive Belts >> Air Compressor, Belt Drives - 222 Chassis >> Testing & Repair >> Remove/Install Refrigerant Compressor Poly-V-Belt >> Remove/Install Poly-V-Belt Of Refrigeration Compressor Of Air Conditioning System - AR13.21-P-1203MNL

Remove/Install Poly-V-Belt Of Refrigeration Compressor Of Air Conditioning System - AR13.21-P-1203MNL

Engine 176 in Model 217, 222 

Shown in Model 222 with code 487 (MAGIC BODY CONTROL) 

Fig 1: Refrigerant Compressor Poly-V-Belt Components Location - Engine 176 In Model 222 (Shown Without Code 487)
G15362414Courtesy of MERCEDES-BENZ USA
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
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
REMOVING Remove     
1 Remove front and center lower engine compartment paneling   AR61.30-P-1001LF
2 Release tensioning device (2) clockwise and lock tensioning device (2) with a suitable drift    
3 Remove poly-V-belt (3)    
INSPECT Check     
4 Check belt pulley of A/C compressor for damage If damage is present

Replace A/C compressor.
 
      AR83.55-P-5310MNL
5 Check belt pulley/vibration damper for damage If damage is present

Replace belt pulley/vibration damper.
 
      AR03.30-P-1600MNL
6.1 Check top guide pulley for the poly-V-belt (3) of the refrigerant compressor for damage Engine 176 in model 217, 222
except code 487 (MAGIC BODY CONTROL)
If damaged

Install new top guide pulley for the poly-V-belt (3) of the refrigerant compressor.
 
      AR13.20-P-0003MNL 
6.2 Check belt pulley of the hydraulic pump for damage Engine 176 in model 217, 222
with code 487 (MAGIC BODY CONTROL)
If damaged

Install new belt pulley of the hydraulic pump.
 
    Engine 176 in model 217, 222
as of model year 2018
with code 487 (Active Body Control (ABC))
AR32.50-P-0030LFM
7 Check bottom guide pulley for the poly-V-belt (3) of the refrigerant compressor for damage If damaged

Install new bottom guide pulley for the poly-V-belt (3) of the refrigerant compressor.
 
      AR13.20-P-0004MNL 
8 Check tensioning device (2) for the poly-V-belt (3) of the refrigerant compressor for damage If damaged

Install new tensioning device (2) for the poly-V-belt (3) of the refrigerant compressor.
 
      AR13.20-P-0002MNL 
INSTALLING Install     
9 Fit the poly-V-belt (3)   AR13.22-P-3902-02MNL 
    NOTES
Do not use belt wax or similar products. This leads to slipping of poly-V-belt (3).
IMPORTANT Observe routing diagram of poly-V belt (3)
 
10 Pull out drift and tension the poly-V-belt (3) with tensioning device (2)    
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
11 Perform an engine test run and check engine for proper function    
12 Install front and center engine compartment paneling   AR61.30-P-1001LF