Removal and installation of the warm/cold air switch (S24/1) and knurled wheel strip - ra83001400150x(0150)

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.

A. Warm/cold air switch (heating systems) (S24/1), B. Knurled wheel strip - Model 140 with automatic heater control

Operation No. of Job Texts and Work Units, Standard Texts and Flat Rates:

A. Removing and installing warm air/cold air switch (heating systems) (S24/1)

Fig 1: Locating Warm/Cold Air Switch

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Center air outlet	Remove (REMOVAL AND INSTALLATION OF THE CENTER AIR NOZZLE ).
Warm/cold keys (S24/1)	Pull out.
Electric cable	Remove from retainer.
Switch section (S24/1)	Unclip.
Bulb (arrow)	Pull out.
Install	In the reverse sequence.
	After completing the work: Erase fault memory in control unit (Diagnosis Manual - Climate Control).

B. Removing and installing knurled wheel strip

Fig 2: Identifying Knurled Wheel Strip Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Center air outlet	Remove (REMOVAL AND INSTALLATION OF THE CENTER AIR NOZZLE ).
Cap on screw (2)	Unclip.
Screw (2)	Unscrew.
Wood trim strip (3)	Remove by detaching locating pin (6) and disengaging hook (arrow).
Screws (4 and 5)	Unscrew.
Knurled wheel strip	Pull out until the 4 lips (arrows) can be unclipped.
Plug connection (X29/2)	Disconnect and pull out knurled wheel strip.
Bulb sockets	Unclip.
Bulbs	Replace.
Install	In the reverse sequence.