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N52 Small DISA rubber perished - Need advice on replacement

Posted: Tue Mar 19, 2019 1:31 pm
by propaintballa
Hi guys,

I've got an ongoing thread (viewtopic.php?f=3&t=110050) about issues with my N52 engined E91. I finally bit the bullet and decided to renew the CCV system, so today I got the intake manifold off (ballache). I had a feeling there was going to be an issue with the inner DISA valve and to my surprise, the flap is rigid and I suspect it works fine, but the rubber seal on the unit has broken away in several places (pictures below).

I am wondering if anyone know where I can source one other than a dealer, as I think they are about £250. Seems it's really difficult to find OE quality parts in the UK. Any advice would be greatly appreciated, as the car will be off the road until I can find a replacement unit!

Thanks

N52 Small DISA rubber perished - Need advice on replacement

Posted: Tue Mar 19, 2019 2:28 pm
by PinkPineapple44
How's this for you? https://www.autodoc.co.uk/metzger/12821014

I've used autodoc multiple times for beemer and audi parts over the past couple of years without any complaints thus far.

N52 Small DISA rubber perished - Need advice on replacement

Posted: Tue Mar 19, 2019 4:23 pm
by propaintballa
PinkPineapple44 wrote:
Tue Mar 19, 2019 2:28 pm
How's this for you? https://www.autodoc.co.uk/metzger/12821014

I've used autodoc multiple times for beemer and audi parts over the past couple of years without any complaints thus far.
I have to say, I wondered about that site when looking for CCV parts, but encountered pretty mixed reviews. I also looked at it for the DISA but I wasn't sure about the quality of the various brands. As such, I ended up befriending a guy from Sytner near me and got a bit of a discount. £238 for the small DISA, which is ludicrous, but I can get it tomorrow morning and can be sure of the quality.

Out of interest, I don't suppose you have any experience of the quality of parts made by the manufacturer in your link? For future when something else breaks haha.

N52 Small DISA rubber perished - Need advice on replacement

Posted: Tue Mar 19, 2019 9:36 pm
by Bing
Wow. I did a how-to on how to inspect your disa on an n52 a few years ago now and mine was fine. Lots of people have used it since, definitely worth posting a link to this thread as an update so people are not lulled into a false sense of security and decide not to check it :thumbsup:

I’ll do it now, good news you’ve caught it... I wonder where those rubber bits are now though :?

N52 Small DISA rubber perished - Need advice on replacement

Posted: Wed Mar 20, 2019 12:04 am
by ph001
Even if the rubber has perished slightly and leaking a small amount of air, i’m not convinced it would have any impact on performance or smooth running. You have to remember that the only purpose of these valves is to alter the effective inlet manifold lenght to aid induction at certain rpms. Its really more an optimisation than a critical function.

N52 Small DISA rubber perished - Need advice on replacement

Posted: Thu Mar 21, 2019 3:41 pm
by PinkPineapple44
propaintballa wrote:
Tue Mar 19, 2019 4:23 pm
PinkPineapple44 wrote:
Tue Mar 19, 2019 2:28 pm
How's this for you? https://www.autodoc.co.uk/metzger/12821014

I've used autodoc multiple times for beemer and audi parts over the past couple of years without any complaints thus far.
I have to say, I wondered about that site when looking for CCV parts, but encountered pretty mixed reviews. I also looked at it for the DISA but I wasn't sure about the quality of the various brands. As such, I ended up befriending a guy from Sytner near me and got a bit of a discount. £238 for the small DISA, which is ludicrous, but I can get it tomorrow morning and can be sure of the quality.

Out of interest, I don't suppose you have any experience of the quality of parts made by the manufacturer in your link? For future when something else breaks haha.
No sorry, I haven't used that specific brand. I tend to stick with the higher quality brands such as Bosch, Mann etc but have used a couple I had never heard of before. Did some research first before biting the bullet just to make sure they weren't total trash though!

N52 Small DISA rubber perished - Need advice on replacement

Posted: Sat May 11, 2019 11:48 am
by juld0zer
For the small one it might be worth a punt with an aftermarket part as it is accessible with the manifold installed, unlike the inner one.