Maf seals

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
Post Reply
User avatar
Ben_r1
3rd Gear
Posts: 426
Joined: Mon Nov 20, 2017 8:38 am
Location: Essex

Maf seals

Post by Ben_r1 » Tue Nov 28, 2017 8:57 am

Going to be changing my plugs in a few weeks and after reading on here thought it'd be a good idea to get a set of seals for when the airbox comes off just in case.
Popped to Audi and nearly had a heart attack at the prices!
The blue uprated ones from USA look good but one set only has two seals?

Do you just need to replace the lower seals or buy two sets of the uprated seals at around $120 plus postage and import tax? If so it works out the same price as Audi!

User avatar
Jayjay101
4th Gear
Posts: 896
Joined: Fri Dec 18, 2015 9:24 pm

Re: Maf seals

Post by Jayjay101 » Tue Nov 28, 2017 9:14 am

I’ve only got one set of the uprated blue ones from the USA and I’ve never had any problems with them.

They just need a bigger push to get them to seat right


Sent from my iPhone using Tapatalk
c5 rs6 owner thats been known to cut the wrong wire.............

Mɐʇʇ
Cruising
Posts: 2725
Joined: Tue Oct 07, 2014 8:30 pm

Re: Maf seals

Post by Mɐʇʇ » Tue Nov 28, 2017 9:36 am

I'm running the Apikol seals as well. They're OK. There was a chap who found a generic/industrial part number for some seals a while back, IIRC. I didn't buy them on account of already having these - but might be worth a search back through the forum.

http://www.apikol.com/index.php/c5-rs6- ... l-kit.html
"not a professional engineer, mechanic and mechanist"

kvxxy
2nd Gear
Posts: 162
Joined: Wed Aug 03, 2016 9:52 am

Re: Maf seals

Post by kvxxy » Tue Nov 28, 2017 10:33 am

How much were audi asking out of interest?

User avatar
Ben_r1
3rd Gear
Posts: 426
Joined: Mon Nov 20, 2017 8:38 am
Location: Essex

Re: Maf seals

Post by Ben_r1 » Tue Nov 28, 2017 1:43 pm

£28 each for the lower ones and £38 each for the uppers, plus vat of course

So near on £160 all in 7 day wait.

User avatar
Shoppinit
Cruising
Posts: 20315
Joined: Wed Dec 31, 2008 6:24 pm

Re: Maf seals

Post by Shoppinit » Tue Nov 28, 2017 1:57 pm

Silly money for what they are, but not much in the grand scheme of things.

Why don't you see if you need them before buying?
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

rsmotors
2nd Gear
Posts: 123
Joined: Thu Jun 07, 2007 7:13 pm
Location: shrewsbury

Re: Maf seals

Post by rsmotors » Tue Nov 28, 2017 3:10 pm

I have been using apikol , and they are good value , and work well.

User avatar
Ben_r1
3rd Gear
Posts: 426
Joined: Mon Nov 20, 2017 8:38 am
Location: Essex

Re: Maf seals

Post by Ben_r1 » Tue Nov 28, 2017 3:23 pm

So general opinion is the lower seal is what causes issues and top seal has a liger service life?

Mɐʇʇ
Cruising
Posts: 2725
Joined: Tue Oct 07, 2014 8:30 pm

Re: Maf seals

Post by Mɐʇʇ » Tue Nov 28, 2017 8:56 pm

I'd forgotten there even was a top seal. It's the lower one that wears and ultimately fails.
"not a professional engineer, mechanic and mechanist"

User avatar
Gav66
3rd Gear
Posts: 383
Joined: Tue Apr 18, 2017 8:04 pm
Location: Scotland

Re: Maf seals

Post by Gav66 » Wed Nov 29, 2017 7:38 pm

How hard are the bottom seals to change over, oem price seems reasonable to be honest, and that would be them done.

User avatar
Ben_r1
3rd Gear
Posts: 426
Joined: Mon Nov 20, 2017 8:38 am
Location: Essex

Re: Maf seals

Post by Ben_r1 » Wed Nov 29, 2017 8:19 pm

I'm yet to change them but from research it seems you remove the airbox ensuring maf plugs are carefully removed and the maf sensors come off with it then just swap rubber seals out of intake pipe work.

User avatar
Ben_r1
3rd Gear
Posts: 426
Joined: Mon Nov 20, 2017 8:38 am
Location: Essex

Re: Maf seals

Post by Ben_r1 » Sun Dec 03, 2017 12:36 pm

Right so got the genuine Audi ones my advice would be don't bother. I had to destroy the old ones to get them out and the ones I've got from Audi dealers are a mil or two too big, they refuse to fit the pipe even with a gentle hammer tap and now the cars stranded over my work pit.

Going to head down to dealers tomorrow and year em a new one given the money I paid and they don't fit. Very poor build quality lots of excess rubber melted over metal ring etc.

fukinavit
Neutral
Posts: 27
Joined: Sun Jan 31, 2016 1:30 am

Re: Maf seals

Post by fukinavit » Sun Dec 03, 2017 5:34 pm

A couple of wraps of electrical tape around the mafs is what most do to fix this. Seals them up nice, did mine over 3 years ago and still silky smooth.
:assflash:

User avatar
Ben_r1
3rd Gear
Posts: 426
Joined: Mon Nov 20, 2017 8:38 am
Location: Essex

Re: Maf seals

Post by Ben_r1 » Mon Dec 04, 2017 12:53 am

Not a bad idea that. In the end I gave up as was hammer tapping them and they still didn't want to budge. I wasn't going to damage them for no reason.

Managed to bend the originals back into some sort of shape and refitted, cars running okay so no worries there. Got a set of Akipol ones ordered tonight along with a road spec diff mount for a lil Xmas present for her.

Even though mine weren't leaking it was clear the difference between old and new. They obviously deteriorate very quickly

Post Reply

Return to “RS6 / RS6 plus (C5 Typ 4B) 2002-2004”

Who is online

Users browsing this forum: No registered users and 78 guests