morty i removed both of them because i discovered both my defroster flap and my dualzone left air mixture is problematic. this servo module has a servro and a dual potentiometer on the bottom this potentiometer changes the signal moving it around. the problem arises from this. how did i figure this out i will tell you how.
when i connected the defroster motor to the connector and just let it hang and watch the outside gear (where it connects to the flaps) the motor would turn counter clockwise for a bit then stop and go clockwise and wouldt stop.
THen i did the same with the left hand side dual zone motor and watched it. it went counter clockwise stopped then went clockwise for a very short bit and stopped. Pay attention though that the motor does have a protecting mechanism to not brake the inside flaps of the aircon in this even thats why you will see that on the outside of the motor there is a plastic protruding right beneath it. this blocks the gears from going more than a specific travel and the breaking of the gears is to protect the inside flaps i assume.
Anyways i ordered a set of gears and a motor but i didnt order a second motor because i believe i have found a way to fix it.
remove the top cover in this way so its less of a chance for you guys to break it.
on the potentiometer (the blue thing) the top part black in this photo but i have seen it white on another motor.
very gently stick a fingernail and make the slightest opening and spray some electronics contact cleaner (very important because it cleans and lubricates the connectors) then i did it a few more times around. start working the potentiometer turning it back and forth to get it clean.
in addition do not forget when installing back in to align the outside gear to potentiometer position correctly. if you screwed up i made a photo for comparison.
if the arrow of the potentiometer aligns with the line on it then this is how the outside gear should look like.
Connect the plug open ignition of the car (have clima off though) and observe if the motor is going in alignment mode, turning and stop in each direction. the bottom motor which controls the dualzone is easy since you can look at the outside gear touching each end of the plastic travel limit protector.
Anyways this isnt foolproof if the potentiometer is just plain shot. i will verify this on the clima when i get my hands on the outside gears which have been torn off.
Now all you lads in here hope you liked this and i need your help. my
eper has no images unfortunently so i cant see much. i need someone to tell me if the defrost motor the upper most motor is the same with the lowest motor which is for the left dualzone flap.
