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Home >> Mercedes Benz >> 2001 >> S500 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> A/C Compressor >> Air Compressor, Belt Drives - 215 & 220 Chassis >> Testing & Repair >> Remove/install poly V-belt tensioning device - AR13.25-P-3200 >> Remove/install poly V-belt tensioning device - AR13.25-P-3200BA

Remove/install poly V-belt tensioning device - AR13.25-P-3200BA

ENGINE 112 in MODELS 170, 202, 203, 208.365 /465, 209, 210, 220 

ENGINE 113 in MODEL 203, 209, 220 

ENGINE 113.981 in MODEL 163.174 

ENGINE 113.987 in MODEL 209.376 

ENGINE 113.965 in MODEL 163.175 

ENGINE 113.989 in MODEL 171.473 

Shown on engine 112 

Fig 1: Identifying Poly-V Belt Tensioning Device Remove/Install Components - Shown On Engine 112
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REMOVINGINSTALLING Remove/install    
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between the columns of the and position the four support plates below the lifting platform support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
1.1 Remove fan shroud (3) Model 220 AR20.40-P-6800AB
2.1 Remove electric fan (1)    
Model 170 AR20.40-P-5000SV
Model 163.174/175 AR20.40-P-5000GH
Model 209, 203 except model 203.076/276 AR20.40-P-5000PV
Model 203.076/276 AR20.40-P-5000AC
3 Remove poly V-belt (2) Model 163.174/175
Model 202, 208, 210
Model 220 except 220.074/174		 AR13.22-P-1202BA 
Model 220.074/174 AR13.22-P-1202R 
Model 170 except 170.466 AR13.22-P-1202SV
Model 203 except 203.065/265065/265
Model 209
Model 171.473		 AR13.22-P-1202PV
Model 170.466
Model 203.065/265		 AR13.22-P-1202SVK
4 Rotate tensioning pulley in anti-clockwise direction and lock IMPORTANT Lock tensioning pulley with drift or pin (6) (diameter 5 mm).  
5.1 Unbolt shock absorber (7) at coolant pump Only model 170, 202, 203, 210 with manual transmission: ↓  
TORQUE SPECIFICATION Shock absorber of belt tensioning device at the coolant pump housing *BA13.25-P-1004-01M 
SPECIAL TOOL External torx set Figure
6 Unscrew bolts of tensioning device (5) Engine 112: ↓  
TORQUE SPECIFICATION Self-tapping screw for belt tensioner to timing case cover
IMPORTANT Engine 113 except 113.987/988/991: ↓		 *BA13.25-P-1001-01M 
TORQUE SPECIFICATION Self-tapping screw for belt tensioner to timing case cover
IMPORTANT Engine 113.991: ↓		 *BA13.25-P-1001-01D 
TORQUE SPECIFICATION Bolt of belt tensioner to timing case cover *BA13.25-P-1005-01D 
SPECIAL TOOL External torx set Figure
7 Remove tensioning device (4)    
8.1 Unscrew shock absorber (7) at tensioning device (4) Model 170, 202, 203, 209, 210 with manual transmission: ↓  
TORQUE SPECIFICATION Shock absorber of the belt tensioning device at the belt tensioning device *BA13.25-P-1003-01M 
SPECIAL TOOL External torx set Figure
9 Install in the reverse order    
TORQUE SPECIFICATION BELT TENSIONING DEVICE

Number Designation Engine
112.910/911/91
2/913/914/915/
916/917/920/
921/922/923/
940/941/942/
943/944/945/
946/947/949/
953/954/955/
960/961/970/
972/973/975
BA13.25-P-1001-01M Self-tapping bolt of belt tensioner to timing case cover Thread not pre-tapped Nm 35
Thread pre-tapped Nm 25
BA13.25-P-1003-01M Shock absorber of belt tensioning device to belt tensioning device   Nm 25
BA13.25-P-1004-01M Shock absorber of belt tensioning device to coolant pump housing   Nm 35
TORQUE SPECIFICATION BELT TENSIONING DEVICE

Number Designation Engine
113.940/941/
942/943/944/
945/946/948/
960/961/962/
963/964/965/
966/967/968/
969/971/980/
981/982/984/
986/987/988		 Engine
113.990/
991/992/
993/995		 Engine
113.989
BA13.25-P-1001-01D Self-tapping bolt of belt tensioner to timing case cover Thread not pre-tapped Nm 35 - 35
Thread pre-tapped Nm 25 - 25
BA13.25-P-1005-01D Bolt of belt tensioner to timing case cover M7x25 Nm 35 35 35
Fig 2: Identifying External Torx Set (001 589 76 09 00)
G04606184
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