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what does this part do?
Posted: Sat Mar 26, 2011 4:26 pm
by dantheram
Had an MOT this morning and found out a small J shaped arm attached to the rear axle (passenger side) had siezed up and was not working. but i'm not sure what it is. is it the brake balance sensor/switch (it sits on the axle, up close to the brake lines and joins with an electical switch higher up).
Any ideas?
Re: what does this part do?
Posted: Sat Mar 26, 2011 5:02 pm
by Dom_
Might be one of the load sensors for the headlights
Re: what does this part do?
Posted: Sun Mar 27, 2011 9:25 am
by Mart!n-GTI-DK
Yeah. It's the linkage between the headlight range sensor and the rear axle... Without this the headlight's will either shine to high or to low, depending on how the sensorarm is possitioned...
I have just removed mine along with the range sensor because the arm had snapped in the balljonit on the axle and the sensor was shorted out...
Re: what does this part do?
Posted: Sun Mar 27, 2011 12:26 pm
by dantheram
Cheers guys,
MOT man was trying to fail it for damaged braking components and also the headlight pointing to the floor
. Now i know which is right, thanks again.
Re: what does this part do?
Posted: Mon Mar 28, 2011 12:09 am
by dantheram
Has anyone found another online version of ETKA? the one on VAGCAT has stopped working
Re: what does this part do?
Posted: Sun Apr 24, 2011 11:51 pm
by Mart!n-GTI-DK
This one works pretty well
http://www.wagenstad.com/
Re: what does this part do?
Posted: Mon Apr 25, 2011 12:55 am
by bradley1983
Mine failed on the same part.
Don't buy from VW as it's £160. Get one off a polo being broken.
Re: what does this part do?
Posted: Mon Apr 25, 2011 5:46 pm
by dantheram
Mine was just a seized sensor arm. Took the whole thing off and brought the arm off TPS for £20.
Also got a whole sensor complete with arm from a breaker, any SEAT or VW, with xenons, of similar age to the Polo may have one fitted so there should be quite a few around.