EGR tube clean-out on 95 E320

[tbenner]

I'll apologize in advance... the EGR tube cleanout issue has been well-covered... I am just trying to be sure.

Where the tube attaches to the manifold it is on the side of the manifold, not the top, correct?

Thanks

[deanyel]

Correct. Attached with two bolts. The front one can be reached from the top but it's easier to get the rear one from below.

[Stinkindiesel]

Just did this job this weekend. I'd been putting it off for a while, but it really wasn't as bad as I expected. Took less than 30 mnutes to get the tube disconnected where I could run a bicycle cable through it. Never did get it to go all the way through, but I was able to get it at least a foot into both ends. I believe all the blockage in mine was really limited to the first inch on the intake manifold side. It was necked down to practically nothing right at the intake manifold.

Get at the intake side bolts from the bottom. 10mm gear wrench worked great. The only other partially hidden screw is the backet back behind and below the oil filter housing. This is a 5mm allen, if I remember right.

I went ahead and removed the EGR valve completely, and tested it with a Mityvac, but I didn't really see any gunk here at all.

I purchased my car from a Mercedes dealer mechanic, who said he had just replaced the EGR tube at 80K miles when I bought it. Now has 141K miles. At this rate, I'll have to do it again @ 200K

Gary
1995 E320

[tbenner]

Thanks for that Gary. I can see the bolts on the flange (manifold) end and the allen screw at the top of the oil filter. But I don't see another bracket below / behind the oil filter housing. I can partially see where the tube curves behind the head but no bracket. The engine wiring harness obstructs the view behind there. Moving those wires give me some pause although the harness has been replaced in this car.

Is the bracket under the wiring harness?

I spotted the 2nd bracket but not the screw... Trying to figure out how to remove that one. Getting it back on could be a challenge.

Thanks again,

[tbenner]

I have finally gotten to the EGR tube cleanout project. The 10mm bolts are out, the connection to the EGR valve is off. The 5mm allen to the top of the oil filter housing is out. Great! Getting excited!

The 5mm bracket bolt behind/beneath the oil filter housing... How in the world do you get to that? I cannot get my hand down there let alone a wrench... can't get my hand up there from the bottom either.

But it is so close. If anyone would share their trick to getting to this allen bolt I would be *most* appreciative!

[skiier3_9]

Do you have an allen/hex key attachment for your ratchet? I used this and a long extension for my 3/8 drive and didn't have any trouble...

http://www.canyonchasers.net/shop/generic/images/hex-socket.jpg