S 500 4MATIC (220.184) V8-5.0L (113.966) (2003)
Heater Core: Service and Repair
AR83.50-P-9110M Remove/Install Rear Heat Exchanger
AR83.50-P-9110M Remove/Install Rear Heat Exchanger
- with CODE (582) Rear air conditioning
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.
-
Wear protective gloves, protective clothing and eye protection.
1
Reduce pressure in cooling system
NOTE: To do this, turn radiator cap into position "1" and reseal
2
Drain coolant, pour in
3
Remove rear AC control module (N22/4)
4
Remove center console (1)
5
Remove connector at rear evaporator temperature sensor
6
Unclip wiring harness (2) at top part of housing
7
Unclip 6 clips (3)
8
Remove top part of housing (4)
9
Unscrew bolt (5), close and remove heat exchanger (6)
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Separation point of coolant lines at rear air conditioning heat exchanger: 8 N.m
10
Replace receiver/drier
11
Install in the reverse order.
NOTE: After completing the operations reset engine coolant level and perform leak test.