A write up will be great but check the armature for wear as well.

 

subscribed

 

There is some wear on the armature but nothing serious. I was thinking the new brushes would wear very quickly to its shape.

 

Subscribed to see how the repair lasts. Nice work actual troubleshooting and not just part replacing.

 

Would like to know wich brushes you ordered.

 

Just went through this last week!
I ordered an oem motor made in Germany on eBay for 117 usd . Comes with 10 year warranty !
Don't bother trying to fix the old one?
I changed myself with in 15 mins.
Pm me if you want my eBay seller.
Rollo

 

Sorry for taking so long to update but I've had a busy week. The repair was a success!! Fan blower now works like new with plenty of power and no noise.

There is already a 'how to' on removing the blower motor so I won't go into that. The following pics are from the motor being removed and on the bench.

The brushes in these motors are seated in a plastic holder that is retained by a small spring. I made the mistake of removing the holder and the spring which turned into an hour if trying to replace it!!! Do not remove the plastic holder, hold it up with a screwdriver and cut the copper wired going to the brush and then remove the brush itself.

The picture shows the plastic holder and the small spring.

When you have removed the old brush you will need it as a template for the new one as they need some trimming to make them fit in the plastic holder.

As you can see, there are two groves to the side of the old brush.

I used the old one as a template and trimmed the new one with a stanley (hobby) knife. It's very easy to trim as the brush is made of carbon, the same material as a pencil lead.

The new brush is also slightly too long (about 5 mm) so I sanded the end with a sheet of 120 grit sandpaper.

When this is done the hard part starts. Trying to fish the new brush into the holder through the fan cage. This took me almost an hour to do both. Once in, I soldered the ends to the end of the copper coil as below.

And that's the hard part over. Now to reassemble the motor into its plastic cover/mount. A small tip- use washing up liquid on the rubber mounts to make them easier to slide into their holes.

When everything is back together make sure all four rubber mounts are seated properly, the plug from the motor is clipped into the cover and your soldered wires are secure. Also make sure they brushes are touching the armatures because if they are slightly too long they will sit on the plate beside the hole where the brushes go into to touch the armature. (The only way I could explain this as its too small and awkward to take a pic)

Put the unit back into the car with 7 5.5mm screws and plug the motor in. And hey presto- working motor! (well it was for me). This job cost £5 and about 1-2 hours work and saved me almost £200!


Any questions don't hesitate to ask.

 

Sorry for taking so long to update but I've had a busy week. The repair was a success!! Fan blower now works like new with plenty of power and no noise.

There is already a 'how to' on removing the blower motor so I won't go into that. The following pics are from the motor being removed and on the bench.

The brushes in these motors are seated in a plastic holder that is retained by a small spring. I made the mistake of removing the holder and the spring which turned into an hour if trying to replace it!!! Do not remove the plastic holder, hold it up with a screwdriver and cut the copper wired going to the brush and then remove the brush itself.


View attachment 86746

The picture shows the plastic holder and the small spring.



View attachment 86754


When you have removed the old brush you will need it as a template for the new one as they need some trimming to make them fit in the plastic holder.


View attachment 86770

As you can see, there are two groves to the side of the old brush.


View attachment 86778

I used the old one as a template and trimmed the new one with a stanley (hobby) knife. It's very easy to trim as the brush is made of carbon, the same material as a pencil lead.



View attachment 86778

The new brush is also slightly too long (about 5 mm) so I sanded the end with a sheet of 120 grit sandpaper.


View attachment 86786

When this is done the hard part starts. Trying to fish the new brush into the holder through the fan cage. This took me almost an hour to do both. Once in, I soldered the ends to the end of the copper coil as below.

View attachment 86802

And that's the hard part over. Now to reassemble the motor into its plastic cover/mount. A small tip- use washing up liquid on the rubber mounts to make them easier to slide into their holes.


View attachment 86810

When everything is back together make sure all four rubber mounts are seated properly, the plug from the motor is clipped into the cover and your soldered wires are secure. Also make sure they brushes are touching the armatures because if they are slightly too long they will sit on the plate beside the hole where the brushes go into to touch the armature. (The only way I could explain this as its too small and awkward to take a pic)

Put the unit back into the car with 7 5.5mm screws and plug the motor in. And hey presto- working motor! (well it was for me). This job cost £5 and about 1-2 hours work and saved me almost £200!


Any questions don't hesitate to ask.

Just did this brush replacement job on my blower motor. Complete success thanks to the help of your explanation. New motor would have been 310euros +vat, brushes cost 4euros. Great saving!!

 

Nice work and thanks for the write-up.

 

thank you very much mate! nice work

 

Today i removed my blower motor and used some compressed air to clean it (black clouds )

The blower motor didn't turn as smooth as i expected. So i used some WD40 on the small bearings and after turning it went smooth again. Used some extra WD40 and after that cleaned again with compressed air. Put the motor back in and the sqeek was gone

Don't know how long it will last but for now it works as a charm. Total cost? 25 minutes

 

Great write-up and excellent repair. Although if you can actually get one for $117, you get new bearings, stator, rotor and housing. It might be worth the extra cheese.

 

That's true danny boy! I would obviously advise to give the motor a good check over to asses it's condition before deciding wether to repair or replace. I was very fortunate that my motor was still tight, with no noises and turning freely! If a motor is loose and bearings about to go I would just replace it.

 

Thanks for that detailed write-up, Sparky. I just spent two hours taking out the old motor. I also blew out the motor and got a cloud of black dust. I sprayed some WD-40 into the motor but I'm fully aware of the fact that this is only a temporary fix. I will swap out the brushes using your guidance, Sparky. Is it something that a novice can do? Or do I need to be an electrical wiz?

 

Replacing a blower moter happens to every car at one point it seems. I had to do it on my Subaru Outback. Replacing one on a treg looks much harder. But when you replace it it really blows, Nice work!

 

It's a very fiddly job as the blower blades can't be removed so you have to work around them. I think it depends on how you value your time as it took me just over 2 hours. If you can buy a motor for £80 new from Germany then this is probably the best option for most people. Im an Engineer by trade so enjoy fixing things for as little as I can.

 

Check out my rebuild may help.
You can remove the blades.


http://www.clubtouareg.com/forums/f...conditioning-not-working-thread-64999.html#/forumsite/20553/topics/64999?page=2

 

My heater blower motor has stopped working this morning and I have removed it and checked the brushes. They have worn down to about 10mm long (less than half the length I'd expect them to be) so I have ordered a pair of brushes and plan to replace them. Has anyone tried this before or do most just replace the whole blower unit? Seems a bit steep to spend £300 on a part that only needs a £5 repair. Was going to do a write up with pics if no one else has already done so?!

Hi where did you order the carbon brushes from am in uk

 

My heater blower motor has stopped working this morning and I have removed it and checked the brushes. They have worn down to about 10mm long (less than half the length I'd expect them to be) so I have ordered a pair of brushes and plan to replace them.

Has anyone tried this before or do most just replace the whole blower unit? Seems a bit steep to spend £300 on a part that only needs a £5 repair.

Was going to do a write up with pics if no one else has already done so?!

Hi where did you order the carbon brushes from an in uk

 

For anyone buying a new blower, remember they are handed so a left hand drive car blower won't work correctly in a right hand drive car and vice-versa.

 

my blower went out last fall and after looking at the $170 options with OEM brands from my usual online vendorsI got the sense they all came from the same factory in China.

I ordered this one from Amazon and when I had it side by side with the original blower I had removed, they were virtually and completely 100% identical. I'm talking about each and every part I could see right down to the shape of the stamping on the motor housing. The only discernible difference being the feel of the abs housing and It's been flawless.

Your vehicle your wallet. Just sayin'