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   W210 E Class
     Diy. Fortunately solve the ac heater blower switch issue
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Azamli
Posted on: 2013/9/27 19:40
Home away from home
Joined: 2011/10/3
From: KB
Posts: 315
Benz Model: W210 E200
Message:
Diy. Fortunately solve the ac heater blower switch issue
Jumping blower velocity. Still could choose the blower velocity ie 1-2-3-4-5 off but sometimes when you hit a bump the blower *regulate the switch on their own.

So the most reason should be the switch itself.

I did dissamble the unit and examined. Fortunately it solve the issue after cleaning the electronic board and the resistor

Anyway there is a broken plastic at the dial knob but currently doestnt give problem.



The front panel have to be removed.

The two tube like structure are for ac flap or recirculation type.



The unit . The connector pins and you could buy a recond unit. 3years ago it was about RM 400-450, currently I think about RM 600-650 at certain half cut shop.

The unit opened in two and cleaned.






See this *rotary resistor corresponding to dial knob numbers



Then put in reverse order.





I solve the issue by just cleaning the board with electronic contact cleaner for the time being. You can try this if you have no money like me at the moment.
190E
Posted on: 2013/9/27 21:34
Just popping in
Joined: 2009/7/21
From: Bangi
Posts: 19
Benz Model: 190E
Message:
Re: Diy. Fortunately solve the ac heater blower switch issue
Good tip for others who may face similar problem.
Where do you get the electronic contact cleaner? Is is easy to find at hardware shops? Thank you.
Azamli
Posted on: 2013/9/27 21:47
Home away from home
Joined: 2011/10/3
From: KB
Posts: 315
Benz Model: W210 E200
Message:
Re: Diy. Fortunately solve the ac heater blower switch issue
Yes bos... Mana2 hardware shop ..
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