190E 2.3 (201.028) L4-2.3L (102.985) (1987)
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1st version
On 1st version adjust to the left or right by bridging the segment on lever (arrow) of potentiometer for flap position. Slightly adjust stop screw
(51), if required.
2nd version
15
On 2nd version, turn adjusting screw (89) to the left or right.
16
Engage temperature wheel at "MAX", wait for approx. 60 seconds and test voltage 0.3 - 1.2 V.
NOTE: If the voltage is not attained, check whether the blend air flaps are moving from position 'full heating" to "full cooling". Make blend
air flaps operable, if required.
17
Close socket box on control unit.
18
Install instrument panel.
19
Check heater for function.
B. Vacuum element (38) for defroster nozzle flaps
