C 280 (203.054) V6-3.0L (272.940) (2006)
Auxiliary Water Pump: Service and Repair
AR83.25-P-1170P Remove/Install/Replace Heating Water Circulation Pump
AR83.25-P-1170P Remove/Install/Replace Heating Water Circulation Pump
- with CODE (670a) Residual engine heat utilization (REST)
- with CODE (228) Stationary heater
- with CODE (874) Coolant circulation pump
- with CODE (580a) Automatic air conditioning
- with CODE (581b) Convenience automatic air conditioning
Shown on Model 203.0
DANGER:
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Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant.
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Do not open cooling system unless coolant temperature is below 90 degrees C. Open cap slowly and release the pressure. Do not pour
coolant into beverage bottles
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Wear protective gloves, protective clothing and eye protection.
1
Open engine hood
2
Reduce pressure in cooling system
3.1 Detach lower engine compartment lining
-
Engines 111, 112
NOTE: Front paneling
3.2 Remove bottom section of sound-proofing capsule
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Engine 611, 612
NOTE: Front bottom section
4
Drain coolant at radiator
5
Disconnect connector (1) from coolant circulation pump (M13)
6
Remove hose clamps (2) from fitting
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Hose clamp pliers (length 210 mm; adjustment range 80 mm)
See "Commercially Available Tools" given below.
7
Remove coolant circulation pump (M13) from coolant
pansion reservoir (4)
8
Remove heating hoses (3)
9
Install in the reverse order
10
Adjust coolant to correct level