Replacing bulbs on pushbutton control module for air conditioning (automatic) - AR83.40-P-6352D

MODEL 140 up to 31.8.95 

"Bosch" pushbutton control module 

Fig 1: Identifying Bulbs On "Bosch" Pushbutton Control Module

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removal, installation
	Bulb (a) illuminates the fan dial Bulb (b) on the left illuminates the left display and left dial Bulb (b) on the right illuminates the right display and right dial
	When one of the indicator lamps fails replace the A/C pushbutton control module (N22)		AR83.40-P-6350D
1	Switch off ignition
2	Remove radio
3	Remove cover on center console		ra68001400235x
4	Replace bulb (a) by sliding a piece of spaghetti (a, dia. 5 mm) over the bulb (between the left and center pushbutton fields) and pull out bulb
5	Replace bulb (b) by unclipping "AUTO" button and proceeding as for bulb (a)
6	Reinstall in opposite order	Installation:  Before installing the cover on the center console check for proper function according to diagnosis manual