Many replies indicate Code 26 is for the EGR and the tube should be cleaned out especially at the intake manifold.

My local shops "never heard of it," so what's a fair number of "PRO" hours to do it and could a DIY'er do it? Out of curosity, how much must be dissambled to get to the EGR tube where it enters the intake manifold.

Thanks
Bob

You can just replace the tube in around 1.5-2.0 hours, about the same to clean it, but the new tube is improved and you're never really sure absolutely how clean it is when you're done. I'd replace it. Biggest PITA is dealing with the clamp on the tube back by the oil filter and lifting bracket.
Gilly

__________________
Click here to see the items I have up for auction at EBay

Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)

Code 26 is Shift Delay malfunction on 124.032. Usually the element/actuator at the trans cable end.

EGR is code # 5.

Arthur,
Thanks for the reply. Sorry about Code 26 mistake. I had that one. Inde wanted $375 to R&R throttle pressure cable. In hindsight, I think you explained to me the difficulties of the R&R throttle pressure cable. While I was saving my pennies to have them do it, I got lucky when I found a bad vacuum hose that cured it.

I guess I'll have inde do the EGR tube because I can't imagine how to disconnect it at the intake manifold. Must be another one of those "experience" and/or "I made the tool for the application."

Bob

Although there is a reasonable chance that the egr tube is blocked,[common
104 prob], an easy test for vac. flow is to simply apply some vac [ hand pump or vac source] to the egr while at idle. This opens the egr and will cause the engine to stumble..[ go lean]...if it does ,the tube is not blocked and other parts of the egr system are suspect...
You may know about the EGR/TSB on this chassis...[ archieves]

Arthur:

I currently have this dtc occurring on the 95E320. Was wondering if it's an addressable repair from the outside of the transmission or if I have to do deep surgury?

Ron

__________________
1995 E320 -171k-km
1995 S420 -333k-km

All of the fixes to a code 26 upshift delay valve problem occur outside of the transmission. The problem is either a vacum leak in the hose (or a plugged hose) to the upshift delay valve, a vacum leak in the upshift delay valve itself, a bad / mal-adusted bowden cable, or a problem with the s/o valve mounted on the firewall behind the brake master cylinder.

There has to be tons and tons of info in the archives of code 26 and upshift delay valve probelms. Very, very common problem on W124 E320's. Try the search function and see what comes up.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

what is the procedure for removing the EGR tube. I spent about 4 hours today working on the damn thing and couldn't get it out of the engine bay. It seems to be stuck on a. the tranmission dip stick tube b. the heater tube c. the back of the engine ...etc.

I unbolted all the bolts holding the tube in place and it moves freely but I haven't taken off the intake manifold.

HELP! TIA (BTW engine = m104 3.2L)

Never had too much trouble. Worst spot is where the tube bolts to the intake manifold itself.
It bolts to the back of the head near the tranny dipstick tube, and also to the engine lifting eye near the oil filter, there sometimes is another clamp under the intake manifold.

Gilly

__________________
Click here to see the items I have up for auction at EBay

Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)

Never had too much trouble? The EGR tube is routed around everything in the engine. Did you pull the intake manifold when you removed the tube? I don't see how to get it out without doing this but that would take longer than the 1-2 hours you say it should take. As I said, I can move the pipe freely (its not bolted to anything) I just can't get it around the tranny dip stick tube, or around the oil filter housing.

Is the transmission dipstick tube unbolted?
The intake manifold stays on.

Gilly

__________________
Click here to see the items I have up for auction at EBay

Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)

Yep, I unbolted the transmission dipstick tube. I'll try to take some pictures maybe tonight.

Bob, here is how I do it, and it gets the job done ......................

Pick up a universal speedometer cable from any auto parts store.

Attached the cable to a variable drill, and feed it in to the EGR Tube, start the drill at low speed, and feed the cable through the EGR Tube.

This will clean it out, I think you will be amazed how much crude comes out.

I tried the spedo cable router rooter trick, but could never feed it in far enough to get to the intake manifold. It appears to stop at the "U" at the rear of the engine. I too would like to disconnect and remove the tube itself, but like others, I can't figure out how to disconnect the tube from the intake side without removing the intake manifold.

Moe specific instructions are really appreciated.

Bob

Its really not too tricky to unbolt it on the intake side you just need to do it from underneith the car. Jack the drivers side up and put it on jack stands. Then climb under it and find where the EGR meets the intake, its near the throttle cable bracket assembly. There are two bolts holding it into place (10mm) and you will need a wrench to get one (or both of them) as there isn't enough room for a socket in there. You will also need to remove the bolt near the oil filter assembly. Here is a picture of the routing of the tube. My problem is that once the tube is unbolted I can't seem to get it out from the engine. What is the routing of the removal? Do you get it around the transmission dipstick tube and the pull it up behind the engine (remove the heater hose)?

Attached Thumbnails