Removing and installing evaporator - ra83001400874x(0874)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Model 140

Fig 1: Identifying Evaporator Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Rear air conditioner unit	Remove (83-572).
Blower housing	Remove (4 clips).
Evaporator temperature sensor (B10/11)	Remove.
Heat exchanger	Remove, unscrew 2 screws and remove heat exchanger.
Upper part of rear air conditioner unit	Remove (9 clips) and remove evaporator from lower part of air conditioner unit.
Install	In reverse sequence whilst ensuring correct seating of the sealing strips on the evaporator and on the air conditioner unit. When renewing the evaporator fill it with 20 cm³ compressor oil.
	After completing the work: Erase fault memory in the control unit (Diagnosis manual - air conditioning). Parts which have come into contact with compressor oil for R12 or R134a may only be installed in systems operating with the same refrigerant.