Accumulator HVAC: Service and Repair

Accumulator

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 and removing components

Warning! Follow the safety instructions for work on air conditioning systems.

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 air conditioning (A/C) system. See: Refrigerant, draining Refrigerant, Draining.

Remove:
- right-hand front headlamp. See: Headlamp bulb Headlamp Bulb
- the bumper shell. See Cover bumper front, B5254T7 Service and Repair.

Remove:
- the front edge of the right-hand fender liner
- the plastic nut, x 1
- the retaining clip against the engine cover under the vehicle.

Removal

Removing receiver




Remove the nut under the front fender liner on the right-hand side. See the illustration.

Note! Lubricate the thread using a little rustproofing agent so that the pressed in screw does not come loose.




Disconnect the pipe / hose connection to the receiver. See the illustration.





Remove:
- the screw (A) for the pipe coupling
- the 3 screws (B) for mounting the receiver.
Remove the receiver.

Installation

Note! For tightening torques, see: Tightening torque, B5254T7 [1][2]Body and Frame.

Installing receiver
Fill the recommended volume of compressor oil. See: AC-system, oil, refilling AC-System, Oil, Refilling.

Note! Install the receiver within 5-10 minutes of the plugs having been removed. This prevents the absorbent material absorbing moisture from the air.

Install:
- the receiver together with 3 M8 screws. Tighten
- the pipe couplings, 2 x M8. Make sure the O-rings are securely located. Tighten the screws
- the M8 nut below the fender liner. Tighten
- the fender liner together with the plastic nut and the retaining clip.

Finishing

Checking the function and leak tracing
Vacuum pump the air conditioning (A/C) system. See: Vacuum pumping Vacuum Pumping.
Fill the air conditioning (A/C) system with refrigerant. See: Refrigerant, filling Refrigerant, Filling.
Leak trace the air conditioning (A/C) system. See: Leak detection, tracer agent Leak Detection, Tracer Agent or.

Installing components and checking performance

Install:
- the bumper cover. See: Cover bumper front, B5254T7 Service and Repair
- right-hand front headlamp. See: Headlamp bulb Headlamp Bulb.
Carry out a performance test on the climate control unit. See: Climate control system, check Climate Control System, Check.