mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

AR83.25-P-1100M Remove/Install Heat Exchanger|Page 7180 > < AR83.25-P-1160M Remove/Install Front Duovalve/Circulation Pump Compact Unit|Page 7175
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Heater Core: Service and Repair
AR83.25-P-1100M Remove/Install Heat Exchanger

AR83.25-P-1100M Remove/Install Heat Exchanger

DANGER:

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Risk of injury to skin and eyes from scalding with hot coolant which splashes out. 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.

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Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning from inhaling overheated
refrigerant vapors. Risk of injury from skin and eye contact with liquid refrigerant.

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Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or open flames. Wear
eye protection and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit
only after the system has been discharged.

CAUTION:  Protect air conditioning circuit and components from moisture when carrying out repair work.

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Drain air conditioning (recycle)

AR83.25-P-1100M Remove/Install Heat Exchanger|Page 7180 > < AR83.25-P-1160M Remove/Install Front Duovalve/Circulation Pump Compact Unit|Page 7175