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Egr

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Member
dcashour's picture
Belmar, NJ
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Joined: April 1st, 2004

Posts:
427

Vehicles
1983 240D
1999 E300 Turbo Diesel

Yesterday while changing the oil in my 1999 E300 I noticed what I think is soot being blown out of the EGR housing. Some of is splattered and dried, and some of it is kind of oily. It appears to be coming from the bottom of the EGR housing where the charge air pipe (from the intercooler) meets it.

A few months ago I had all of this apart when I changed the glow plugs, and I did replace the rubber o-ring where the charge air pipe meets the EGR housing, and I thoroughly cleaned the carbon out of the intake manifold and egr housing, so I don't think there's any blockage. It's been fine until now. It is possible, I suppose, that that connection has come loose, and is allowing the hot air mixed with soot, to come through a leak in the connection.

Does anyone know if the EGR can somehow go bad, or maybe get clogged? It doesn't appear to be a very complicated device.

I don't relish the thought of taking the intake manifold off again, but it looks like I might need to. :confused:

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Dave

Former Member
Sokoloff's picture
Ocean Isle Beach, NC
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Joined: March 29th, 1995

Posts:
2553

Vehicles
2003 SLK320
1983 240D

Dave - after you've done the manifold a half dozen times, it becomes second nature and maybe a fifteen minute job. get used to it. :)

Thanks for the note - I'll have to take a look at mine when I think of it. I didn't replace any O rings any of the fourteen times I've had my manifold off. :)

Len
'99 E300TD 85,000 miles

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Len

'59 220S cabriolet

'83 240D 348,500 miles original owner

'99 E300D 170,000 miles

'03 SLK320 27,500 miles

Member
dcashour's picture
Belmar, NJ
Offline
Joined: April 1st, 2004

Posts:
427

Vehicles
1983 240D
1999 E300 Turbo Diesel

Upon closer inspection, the connection of the charge air pipe and egr housing seems to be ok. It seems like the place where the soot is coming from is between the egr and the housing. EGR itself is clean.

I suppose taking it apart again will be easier, but I'd like to know what I'm taking it apart for, or if the housing or egr should be replaced. Any thoughts?

Thanks

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Dave

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