Condenser HVAC: Service and Repair

Condenser

Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Preparatory work

Draining the air conditioning (A/C) system

Warning! Follow the safety instructions for work on air conditioning systems. See: Safety information cooling system Service Precautions.

Read the instructions for slow and fast leaks according to: AC-system, oil, refilling AC-System, Oil, Refilling.

Caution! Always use new O-rings lubricated with compressor oil.

Note! Plug the pipes and connections when working on the climate control system.

Drain the refrigerant from the AC-system according to: Refrigerant, draining Refrigerant, Draining.

Removing components





Remove:
- the bumper shell. See Cover bumper front Service and Repair
- the left-hand headlamp. See: Headlamp bulb Headlamp Bulb Headlamp bulb Headlamp Bulb
- the 2 screws (1) and (2) at the condenser connection (see the illustration)
- the air conditioning unit. See: Radiator, B5244S4, M56, B5244S4, AW55-50/51SN Service and Repair Radiator Service and Repair.

Removal

Removing the condenser




Press in the catch. Carefully pry off both sides using a screwdriver.
Remove the condenser from the air conditioning unit.

Installation

Note! For tightening torques, see: Tightening torque Tightening Torque.

Installing the condenser




Fill the condenser with oil. See AC-system, oil, refilling AC-System, Oil, Refilling.
Press the condenser into the mounting points.

Note! Ensure that both retaining clips secure the condenser.

Finishing

Checking the function and leak tracing





Install:
- the air conditioning unit. See: Radiator Service and Repair Radiator, B5244S4, M56, B5244S4, AW55-50/51SN Service and Repair
- the 2 M8 screws (1) and (2) at the condenser connection (see the illustration). Tighten.
Vacuum pump the air conditioning (A/C) system. See: Vacuum pumping Vacuum Pumping.
Fill the AC-system with refrigerant according to: Refrigerant, filling Refrigerant, Filling.
Leak trace the air conditioning (A/C) system. See: Leak detection, tracer agent Leak Detection, Tracer Agent or: Leak tracing, electronic leak tracer Leak Tracing, Electronic Leak Tracer Leak tracing, electronic leak tracer Leak Tracing, Electronic Leak Tracer.

Installing components

Install:
- the left-hand headlamp. See: Headlamp bulb Headlamp Bulb Headlamp bulb Headlamp Bulb
- the bumper shell. See Cover bumper front Service and Repair.