E60 525d - turbo issue?

[j2112]

No eml light ? Do you mean the turbo only sometimes boosts ?

Emissions light is on?
Talking about slow speed / moving off. It still 'goes' if you make it, just not very smooth when tootling around. I'll maybe try to get a known good MAF to test.
No codes in INPA either, except for some glow plugs and when the MAF was disconnected.
I have had problems with lack of boost on occasion but the car has run fine - just no oomph when you put the foot down.

 

[McFall1984]

Tried driving with the window down to listen for boost leaks or lose pipes?

 

[j2112]

Tried driving with the window down to listen for boost leaks or lose pipes?

No tbh, just listened under the bonnet but not whilst driving. To do
Gave the MAF a quick clean, just to see. Will go for a drive shortly and see if there's any change. Interestingly the emissions light went out on start up.

 

[Nicky]

That seal is what seals the compressed air between the boost pipe and the compressor housing. If you're losing large amounts of oil from there, the engine is either pushing oil into the turbo from the breather system, or else the front seal in the turbo is allowing the oil into the comp housing and pressurising it with the air.

Did you wash the drivers side of the engine down properly prior to driving the car?

 

[Nicky]

Emissions light is on?
Talking about slow speed / moving off. It still 'goes' if you make it, just not very smooth when tootling around. I'll maybe try to get a known good MAF to test.
No codes in INPA either, except for some glow plugs and when the MAF was disconnected.
I have had problems with lack of boost on occasion but the car has run fine - just no oomph when you put the foot down.

Lack of "oomph" could well be as simple as a split or perished vacuum line. Again, it would need checked with a gauge and could include a bit of stripping.

 

[j2112]

No Nicky I just cleaned the top area with a rag. Can't say it's large amounts but enough to show. Just weird. There's defo an ooze from that area anyway, but even after the drive nowhere near as much as before. I think! Didn't want to wash with the under tray on so I'll try to get that off and give it a clean. Apart from the mount there is no way of knowing what else is fresh. A good wash down will help - any electrics I need to he concerned about low down?
Drove to Belfast and back and the emission light came back on. Car not just as bad but I'll do the journey tomorrow again with the MAF unplugged.

 

[j2112]

Fitted the replacement MAF (used, warranted) as a test. On first drive it did seem better, although on restart the idle can be very lumpy. I didn't experience this with my original MAF either connected or not, but maybe it needs some time to adapt? I did notice some oil around the edge of the auxiliary pipe on the MAF to turbo pipe when i removed it if that has any relevance?
And lastly - these problems seemed to start with the oil change. This is perhaps coincidental, but Castrol Magnetec was used - I was assured this met the required standard, but is it possible that may have some sort of bearing on any of the ongoing issues?
Fault codes continually show 3 glow plugs, and a mixture of others - 3FF1 which relates to the MAF, 4530 has appeared too which is 'charge air', 4587 fuel filter as well. None of these are regular or consistent, which is why I don't want to start swapping parts out, but may be worth a try.........

 

[j2112]

Well despite early promise, emissions light is back on, accompanied by rough running and more black smoke. Feck!!
Can't be another bad MAF so guessing now that the problem is being 'masked' by it.

 

[Ruairi83]

Well despite early promise, emissions light is back on, accompanied by rough running and more black smoke. Feck!!
Can't be another bad MAF so guessing now that the problem is being 'masked' by it.

Probably be easier taking to someone who knows what they doing or you'll be replacing and spend money on parts that ain't needed bud.

 

[Ge0rge]

kill it....kill it with fire.

 

[j2112]

Probably be easier taking to someone who knows what they doing or you'll be replacing and spend money on parts that ain't needed bud.

Can't argue with that pal .....

 

[j2112]

kill it....kill it with fire.

Or that .......
It's definitely going now ......

 

[j2112]

They mostly leak from the inlet manifold seals.

Is that the orange 'square' seals?
I'm thinking if I can remove the manifold I might see what, if anything, is actually going on. Probably should get the glow plugs changed at that point too.

 

[Nicky]

Is that the orange 'square' seals?
I'm thinking if I can remove the manifold I might see what, if anything, is actually going on. Probably should get the glow plugs changed at that point too.

There's round seals on the top ports too:

6x 32mm BMW SWIRL FLAP BLANKING PLATES MANIFOLD GASKETS REPLACEMENT

The large round seal if for between the manifold and EGR housing.

 

[j2112]

Thanks Nicky. Blanking plates fitted so hopefully they're still OK.
And the round seals are on the driver side which may also tie in with the oil showing on that side. Sounds like a plan.

 

[j2112]

Seals ordered. Haven't the time or the inclination to take the manifold off to check first. At least if the seals are here I'll only be removing it once. Hopefully!

 

[j2112]

There's round seals on the top ports too:The large round seal if for between the manifold and EGR housing.

Got the manifold off today. Mucky underneath the egr (blanked) and other areas. No obvious signs of a leak though all apertures pretty gunked up?!

 

[j2112]

Oil visible on the manifold side however ....

 

[j2112]

Not what I expected a 'blanked' egr to look like!

 

[j2112]

Found this too. I expect it's to do with the egr as I found a matching vac pipe blocked up, but should there be a small pipe too? I can't find one and I didn't need to disconnect it before removing the manifold?

 

[j2112]

AND I think there is maybe a leak from here

Is it the pipe from the rad?

 

[j2112]

So after the last tinkering I was off on holiday and car stood for three weeks. Tonight took it out and it's very smoky. Got the low oil pressure warning so turned round to come home. Hardly any power but managed to limp it back. Opened the bonnet and the cover and engine bay is covered in a fine layer of 'soot'? Was not like this before - I'd given it a good clean when I did the work before.
So I need some more help please!!
Egr and dpf already deleted, but are we pointing to turbo failure now?

 

[Ge0rge]

So after the last tinkering I was off on holiday and car stood for three weeks. Tonight took it out and it's very smoky. Got the low oil pressure warning so turned round to come home. Hardly any power but managed to limp it back. Opened the bonnet and the cover and engine bay is covered in a fine layer of 'soot'? Was not like this before - I'd given it a good clean when I did the work before.
So I need some more help please!!
Egr and dpf already deleted, but are we pointing to turbo failure now?

Much u lookin for it I like problem cars

 

[j2112]

Ha! Good one

 

[Ge0rge]

Ha! Good one

I'm serious it's like ocd i like things like this I get great satisfaction out of sorting them lol