henri_w_v
Member
- Joined
- Apr 14, 2016
- Messages
- 13
- Reaction score
- 0
- Location
- Hamilton, New Zealand
- Your Mercedes
- W163/2002/ML270
My 2002 ML270's battery drains within a day. The battery has been tested to be good and is also reasonably new.
I think I have isolated it to the culprit. When I switch of the car I can still hear a motor running inside the cabin in the dash. I then did the battery draw test which was running at 600mA when the car is locked up. When I remove the internal fuse F5 related to instrument cluster and aircon the draw test drops down to 30mA.
So I am assuming it is an aircon flap or air blend motor not stopping since I read they have direct supply from the battery?
Can anyone tell me what is the best step to determine which motor it is before I rip the dash apart? How many different flap or airblend motors do the w163 cars have? I live in NZ and parts are ridiculously expensive so I buy them from overseas. I am hoping I can find the fault instead of having to take the dash apart then order the part to wait 2 weeks and have to take it apart again.
Most people complain about a clicking noise which I do not have, the gear must be completely stripped. I did try and reset the aircon with no luck. There is no air coming from the system when the car is off.
Thank you
I think I have isolated it to the culprit. When I switch of the car I can still hear a motor running inside the cabin in the dash. I then did the battery draw test which was running at 600mA when the car is locked up. When I remove the internal fuse F5 related to instrument cluster and aircon the draw test drops down to 30mA.
So I am assuming it is an aircon flap or air blend motor not stopping since I read they have direct supply from the battery?
Can anyone tell me what is the best step to determine which motor it is before I rip the dash apart? How many different flap or airblend motors do the w163 cars have? I live in NZ and parts are ridiculously expensive so I buy them from overseas. I am hoping I can find the fault instead of having to take the dash apart then order the part to wait 2 weeks and have to take it apart again.
Most people complain about a clicking noise which I do not have, the gear must be completely stripped. I did try and reset the aircon with no luck. There is no air coming from the system when the car is off.
Thank you