Hi Ken,
I love the way u have documented the acc problem in the w123 . Do you have any idea about the w124 acc switch. It is a rotary switch. The problem i have with mine is that the ac only starts working when the switch gets to level two(II) nwhich is usually too cold for me.

I have a feeling the first level(I) has a cold solder or partial contact because if i leave the rotary switch on 1, and i get into a bump on the road , the ac suddenly roars into life.

So do u know how i can access the acc control in a w124?

Any solutions will be appreciated.

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1986 230E (revisions on the way)