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M54 checking DISA valve (need to replace seals?)
- tomrdy
- Member
- Posts: 492
- Joined: Tue Jun 26, 2018 9:16 am
- Location: Sydney, Australia
M54 checking DISA valve (need to replace seals?)
Hey guys,
I wanted to do some preventative maintenance as my car is about 150k kms soon and wanted to check that my DISA valve is OK or needs to be replaced.
I was going to just pull it off and take a look to check the pins/flaps/vacuum etc but for some reason my brain is telling me there's something about not being able to re-sit the unit without new seals after pulling off even if everything is fine???
Couldn't find anything to back this up (or rather that the seals will break on the m54 if I remove it) but it's definitely in my head for some reason. Am... I going crazy and made that up?
Cheers,
T
I wanted to do some preventative maintenance as my car is about 150k kms soon and wanted to check that my DISA valve is OK or needs to be replaced.
I was going to just pull it off and take a look to check the pins/flaps/vacuum etc but for some reason my brain is telling me there's something about not being able to re-sit the unit without new seals after pulling off even if everything is fine???
Couldn't find anything to back this up (or rather that the seals will break on the m54 if I remove it) but it's definitely in my head for some reason. Am... I going crazy and made that up?
Cheers,
T
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue...
___
Australia
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M54 checking DISA valve (need to replace seals?)
You can check the DISA valve without replacing any seals. I checked mine a few weeks ago
- tomrdy
- Member
- Posts: 492
- Joined: Tue Jun 26, 2018 9:16 am
- Location: Sydney, Australia
M54 checking DISA valve (need to replace seals?)
Cool thanks mate! So just pop it off, inspect, if all good - pop back on?
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue...
___
Australia
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- Member
- Posts: 96
- Joined: Sun Mar 18, 2018 4:39 pm
- tomrdy
- Member
- Posts: 492
- Joined: Tue Jun 26, 2018 9:16 am
- Location: Sydney, Australia
M54 checking DISA valve (need to replace seals?)
Will do cheers!
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue...
___
Australia
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- Lifer
- Posts: 11026
- Joined: Tue Feb 10, 2015 10:27 pm
M54 checking DISA valve (need to replace seals?)
Pointless taking it out and not fitting an upgrade kit though Tom. The kits are approx £50 and use a threaded shaft instead of the pin that can fall out and sit on a piston waiting to be crushed. The flap arm will probably be worn too, the kit has a new one plus an alloy flap rather than plastic and new seals. Easy job to do.
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
- tomrdy
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- Location: Sydney, Australia
M54 checking DISA valve (need to replace seals?)
Ah didn't know there was an upgrade for it!
Is it something like this?
https://rover.ebay.com/rover/0/0/0?mpre ... 2256111739
I'd be keen on that. Threaded rod sounds good and would put my anxiety of engine-grenading to rest lol!
Is it something like this?
https://rover.ebay.com/rover/0/0/0?mpre ... 2256111739
I'd be keen on that. Threaded rod sounds good and would put my anxiety of engine-grenading to rest lol!
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue...
___
Australia
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M54 checking DISA valve (need to replace seals?)
I think you should have a look at your one first. When I had a look at mine, I was confused as to how the pin can actually come all the way out as it doesn't look like there's enough clearance for it to. My DISA valve was perfectly fine too, so I didn't bother with an upgrade kit.
This is the upgrade kit I was going to kit if you want to have a look
https://www.i6automotive.co.uk/bmw-disa ... -only.html
This is the upgrade kit I was going to kit if you want to have a look
https://www.i6automotive.co.uk/bmw-disa ... -only.html
- kis
- Lifer
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- Joined: Wed Jul 20, 2016 2:33 pm
- Location: Surrey / West Sussex Boarder
M54 checking DISA valve (need to replace seals?)
Not sure about the ebay one but i6 are well known for their DISA and Vanos kits
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
- tomrdy
- Member
- Posts: 492
- Joined: Tue Jun 26, 2018 9:16 am
- Location: Sydney, Australia
M54 checking DISA valve (need to replace seals?)
@ERX yep will plan to take a look at it regardless! I'm removing the airbox to clean up some wiring for my halos anyway so it'll be 2 birds
Thanks for the link. Will check it out if a repair/upgrade is needed. Fingers crossed it's fine tho!
Thanks for the link. Will check it out if a repair/upgrade is needed. Fingers crossed it's fine tho!
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue...
___
Australia
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- Lifer
- Posts: 11026
- Joined: Tue Feb 10, 2015 10:27 pm
M54 checking DISA valve (need to replace seals?)
If you’re taking it out to look at it surely you might as well upgrade a known weak point on that engine? Even if it seems ok £50 will guarantee the pin won’t fall out as it’d be gone. 50 quid is a LOT cheaper than a potentially lunched engine no?
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
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M54 checking DISA valve (need to replace seals?)
Got an intermittant misfire on my 330Ci. It has the M54 engine. Thinking it was probably an air leak in the intake manifold. I checked the DISA valve and intake pipes. In the DISA valve the flap was flapping, no connection to the shaft and coritrol arm. So I replaced the DISA valve and the intake boot and elbow. Still have the misfire. Next step the CCV valve and the crankcase breather pipes.
07 E86 Z4MC, 04 E46 330Ci
- kis
- Lifer
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- Joined: Wed Jul 20, 2016 2:33 pm
- Location: Surrey / West Sussex Boarder
M54 checking DISA valve (need to replace seals?)
If you’re taking it out to look at it surely you might as well upgrade a known weak point on that engine? Even if it seems ok £50 will guarantee the pin won’t fall out as it’d be gone. 50 quid is a LOT cheaper than a potentially lunched engine no?john-e89 wrote: ↑Fri Aug 03, 2018 2:48 pm [quote=tomrdy post_id=<a href="tel:1566933">1566933</a> time=<a href="tel:1533301228">1533301228</a> user_id=28543]
@ERX yep will plan to take a look at it regardless! I'm removing the airbox to clean up some wiring for my halos anyway so it'll be 2 birds
Thanks for the link. Will check it out if a repair/upgrade is needed. Fingers crossed it's fine tho!
[/quote]
I’m the same, if it’s okay now... doesn’t mean it’ll still be okay in the next 1000 miles. It’s a known failure like the rear springs. Some are good for 20k some 60k etc etc. I checked my DISA about 5k ago so just need to pull my finger out and fit it now! FYI my current DISA works and looks fine
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
- tomrdy
- Member
- Posts: 492
- Joined: Tue Jun 26, 2018 9:16 am
- Location: Sydney, Australia
M54 checking DISA valve (need to replace seals?)
Oh yeh but ordering the part will take at least 2-3 weeks for it to arrive (I'm in Australia). Checking it now will just at least let me keep driving my car with less worry as it's my daily.
Also taking it off seems like it only takes 5 minutes or so? Am i missing something?
EDIT: Thought about it a bit more and I think you're right. Probably smarter to leave it alone (my car currently has no symptoms) and remove it just the once to install the upgrades. God knows with my luck sometimes, fiddling with it to check might just cause it to fail lol. I've just put through the order for the i6 kit so hopefully won't take too long to get here!
Thanks for all the feedback and perspective guys! Will update this thread once I've got the bits and done the repairs/upgrades.
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue...
___
Australia
- Z4 - Kev
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- Joined: Tue Aug 18, 2015 1:08 pm
- Location: Surrey
M54 checking DISA valve (need to replace seals?)
I've just read this with much interest. I checked my disa valve recently expecting the worse - pin sticking out or at least showing signs of doing so. But no! The whole valve assembly looked absolutely fine. See pics below. I certainly wasn't going to poke about with the business end of a screwdriver trying to dislodge the pin. It looks perfectly fine to me. My Zed has just over 120,000 miles on the clock and eats up motorway miles with ease.
After reading horror stories about the disa valve pin coming loose without warning, I was pleasently surprised with the 'good' condition I found mine to be in. The valve flap had plenty of resistance when I moved it with my finger as well.
I refitted it with peace of mind that it's not going to fail anytime soon. A yearly check by me will be sufficient me thinks. I only cover approximately 3000 year a year. Maybe I'm just lucky? must admit a £50 easy fix is deffo worth it - if needed. If it a'int broke don't fix it.
Any comments...........
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After reading horror stories about the disa valve pin coming loose without warning, I was pleasently surprised with the 'good' condition I found mine to be in. The valve flap had plenty of resistance when I moved it with my finger as well.
I refitted it with peace of mind that it's not going to fail anytime soon. A yearly check by me will be sufficient me thinks. I only cover approximately 3000 year a year. Maybe I'm just lucky? must admit a £50 easy fix is deffo worth it - if needed. If it a'int broke don't fix it.
Any comments...........
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