Genuine Mercedes-Benz C320 A/C Accumulator

Mercedes-Benz C320 A/C Accumulator Parts and Q&A

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  Q: How to the remove and install of the A/C Accumulator in an air conditioning system on Mercedes-Benz C320?

  A:

  The A/C accumulator is essential for storing refrigerant and removing moisture from the air conditioning system, and it must be replaced whenever a major component like the compressor, condenser, or evaporator is changed, or if the system has been exposed to air for an extended period. For vehicles manufactured up to April 23, 2004, the A/C accumulator is integrated into the right side of the condenser, while later models have it mounted beneath the front. To begin the removal process, take the vehicle to a service department to discharge and recover the refrigerant. For early models, open the hood, remove the plastic cover, unscrew the plug, and lift the A/C accumulator out. For later models, set the parking brake, block the rear wheels, raise the front securely, and remove the splash cover. Then, detach the clips holding the cover, unbolt the retaining plate, remove the mounting bolts, and separate the A/C accumulator from the refrigerant lines, capping or plugging the open lines immediately before taking it out of the vehicle. When installing a new A/C accumulator, add 20 cc of clean refrigerant oil to maintain the correct oil level. For early models, do not open the new A/C accumulator's packaging until ready for installation, and once opened, install it within 20 minutes, inserting it into the condenser with the cylinder end down and tightening the threaded plug. For later models, position the new A/C accumulator, lightly tighten the mounting bracket bolt to allow for alignment, lubricate the O-rings with clean refrigerant oil, reconnect the lines, and securely tighten the mounting bracket bolt before installing the cover and splash cover. Finally, have the system evacuated, recharged, and leak tested by a professional.