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-   -   Squeaky HVAC blower motor. (https://forum.a8parts.co.uk/showthread.php?t=12448)

Johnmed 21st December 2016 01:01 PM

Deffo. Hold me to at least 5 internet beers. I know what I'll be downloading later on.

Johnmed 24th December 2016 01:46 PM

Ok, Merry Chrimbo all.

Managed to get this done earlier today.

Fiddly job that requires large ish Allen hexbits, 5.5mm socket/spanner and/or I think it was a T15 torn bit. Oh and double jointed child's hands. Not having those I managed with a bendy torx driver, saved the day essentially.

The ELSA guide says to remove both wipers, I managed just removing the nearside.

This is in no way a guide, but hopefully the pictures will help anyone who needs to do this themselves.

I reckon my blower had got noisy from water ingress, as the drainage ducts I think have been squished when the pollen filter has been replaced incorrectly; it's quite fiddly to do right I guess.

Took a good while to find screws that were hidden in different locations to the earlier D3s. Hope this helps, I think the pics explain the process pretty much.

I started by marking with tape the position of the wipers:
http://i366.photobucket.com/albums/o...D77FB8EDCB.jpg

Remove plastics:
http://i366.photobucket.com/albums/o...E37603B188.jpg

and nearside wiper arm with this:
http://i366.photobucket.com/albums/o...2B5F27CC26.jpg

Remove bracing that has 13 bolts:
http://i366.photobucket.com/albums/o...9E8D272469.jpg

This is the bugger, and it has two MORE tiny screws behind it. Don't forget those
http://i366.photobucket.com/albums/o...57CA1D5D62.jpg

These are the ducts that I think have been neglected:
http://i366.photobucket.com/albums/o...1EB4322734.jpg

All the best. John

mattylondon 24th December 2016 02:21 PM

Nice work John +++

In the Elsa guide there's a section about adding a seal to a joint to prevent water ingress.

Johnmed 24th December 2016 02:28 PM

Yeah. I read that Matt. I may add some where it said, I'm not entirely convinced by the recommendation, but I ran out of time, and it can be done quite easily I believe in situ.

Architex_mA8tey 24th December 2016 08:12 PM

Thanks John, useful write up +++
You didn't say what the result was - did you replace the blower motor or do something to lubricate it or what? If you replaced it what was the cost?

Johnmed 24th December 2016 08:45 PM

Quote:

Originally Posted by Architex_mA8tey (Post 121785)
Thanks John, useful write up +++
You didn't say what the result was - did you replace the blower motor or do something to lubricate it or what? If you replaced it what was the cost?

Sorry. Yeah, I replaced it with a used blower. £70 from eBay. The old one functioned well bar the noise, it may have needed oil or new bushes, I don't know. Just wanted the awful sound gone to be honest. I may try and sort the old blower motor out, and keep it as a spare. Don't really have the time to muck about these days!

Architex_mA8tey 24th December 2016 08:48 PM

Quote:

Originally Posted by Johnmed (Post 121789)
Sorry. Yeah, I replaced it with a used blower. £70 from eBay. The old one functioned well bar the noise, it may have needed oil or new bushes, I don't know. Just wanted the awful sound gone to be honest. I may try and sort the old blower motor out, and keep it as a spare. Don't really have the time to muck about these days!

I have the same issue on a D3 so was interested in wether it was cured or fixed by replacing - thanks that's helpful +++

Johnmed 24th December 2016 08:53 PM

Quote:

Originally Posted by Architex_mA8tey (Post 121790)
I have the same issue on a D3 so was interested in wether it was cured or fixed by replacing - thanks that's helpful +++

Glad it helped. I was surprised at how many small screws needed removing. And you really do need some bendy tools and dollops of patience. Even by Audi's standards. Something to bear in mind if you do attempt yours. What concerned me was the noise of the old one, it didn't sound that bad. I guess the '8 is so quiet that any noise is a big deal. The replacement in the engine bay didn't sound that different, but inside the car was almost silent.

Architex_mA8tey 24th December 2016 08:58 PM

Quote:

Originally Posted by Johnmed (Post 121791)
Glad it helped. I was surprised at how many small screws needed removing. And you really do need some bendy tools and dollops of patience. Even by Audi's standards. Something to bear in mind if you do attempt yours. What concerned me was the noise of the old one, it didn't sound that bad. I guess the '8 is so quiet that any noise is a big deal. The replacement in the engine bay didn't sound that different, but inside the car was almost silent.

Thanks yes it seems variable in noise but is never more than a small squeaking noise, sometimes it is almost seeming to be assisted by the wind when the blower is on slow but there is more wind outside. If I turn up the fan speed it always goes, but it doesn't stop it getting on my nerves lol

Johnmed 24th December 2016 09:01 PM

Mine was like a metallic cricket, then frog and only when cold. Then it began to scrape and groan. Really started to do my nut in by the time I changed it it sounded like aluminium ladders coming loose on a roof rack. Was worse when I slowed on slip roads. Was comically bad!


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