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Home >> Mercedes Benz >> 2007 >> S550 Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbo Charging -- S-Class (221) >> Testing & Repair >> Remove/install circulation pump for low-temperature water circuit - AR09.41-P-6925LA

Remove/install circulation pump for low-temperature water circuit - AR09.41-P-6925LA

ENGINE 275 in MODEL 215, 216, 220, 221 

Shown on model 220 

Fig 1: Identifying Charge Air Cooler Circulation Pump Components
G07630334Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning  caused by swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A
1 Remove lower engine compartment paneling Model 215, 220 AR61.20-P-1105M
Model 216 AR61.20-P-1105SX
Model 221 without code (Z07) Top protection  
Model 221 with code (Z07) Top protection AR61.20-P-1105SXS
2 Drain coolant out of low temperature water circuit   AR20.00-P-1142HM
3 Pull off pneumatic hose (1)    
4 Pull off electrical plug connector (2) on circulation pump for the charge air cooler (M44)    
5 Unscrew bolt (3) and remove clamp (4) TORQUE SPECIFICATION *BA09.41-P-1003-01G
6 Remove hoses (5, 6) on circulation pump for charge air cooler (M44)    
7 Remove circulation pump for charge air cooler (M44) TORQUE SPECIFICATION *BA09.41-P-1004-01G
8 Install in the reverse order    
9 Venting air from low temperature circuit   AR20.00-P-1145H
10 Inspect cooling system for leaks   AR20.00-P-1010HN
CHARGE AIR PIPE/CHARGE AIR COOLING

Number Designation Engine 275, 285
BA09.41-P-1003-01G Bolt, pump for low-temperature water circuit to bracket Nm 5
BA09.41-P-1004-01G Hose clamps to pump for low-temperature water circuit Nm 3