1999 Mercedes E300 W210 Diesel Injection Pump Needed???? - PeachParts Mercedes-Benz Forum

ron59b · #1 03-05-2018, 05:44 PM

Good evening all,

Does anyone have a injection pump for my vehicle? The situation that I originally thought was the crankcase ventilation pod issue, I'm now being told it's the injection pump. The pump doesn't have any fuel pressure.

Does anyone have a source for a good used pump? Anyone know how much to have mine rebuild?

Thanks for your time.

Ron
(Richmond, VA)

jake12tech · #2 03-05-2018, 06:52 PM

Ron, get your car out of that shop! that guy is a moron. I doubt that you don't have fuel pressure. you could have a bad lift pump...

ron59b · #3 03-05-2018, 07:13 PM

Can you explain the difference?

jake12tech · #4 03-05-2018, 08:08 PM

Ron please take your car out of that shop and take it someone who knows. Also, the damn thing needs to be bled. Thats why it has "no fuel pressure"

I don't think he properly knows how to do that! Please before he rips you off because of lack of knowledge.

The lift pump sucks fuel from the fuel tank. The injection pump distributes fuel to the injectors. The lift pump is attached to the injection pump. It's a replaceable part.

I'm pretty sure it needs NEITHER... Based upon the things that guy had said and you repeated to us, it probably doesn't. If I was closer, I'd get it running. If you really need help and it's getting this expensive i could take a ride on the weekend and get that car running in a few hours.

ron59b · #5 03-05-2018, 08:58 PM

Wow, you completely blow my mine with your generosity. I will look into moving it to a different shop tomorrow. I will keep you posted on my progress. Thanks for also explaining the function of the lift pump. I just wanted to understand what could be happening.

Do you think the bleeding and starting process I can do myself? Is it a DIY function?

Ron

Diseasel300 · #6 03-05-2018, 09:29 PM

As said before, get your car out of that shop and never take it back there! Unless the input shaft to the IP is sheared off, the likelihood of it being the issue are 0. You have a lift pump problem or an air ingress problem, more likely the latter.

jake12tech · #7 03-05-2018, 11:30 PM

I agree with diseasel on air ingress. Bleeding is an easy process that anyone can do. What *could* have happened is when he was "trying" to bleed the car, there is two plastic fuel lines under the intake that attach to the electronic shut off valve and the furthest front fuel lines are not easy to access with those two said lines and if you smack them or disturb them with the wrench, you can break them inside the shut off valve.. Which is not the end of the world for the shut off valve, but will cause an air ingress problem because a lack of proper seal.

How to bleed an OM606 properly:
A): Fill main fuel filter with diesel (spin-on with 19mm bolt)
B): Crack one injector line at a time and crank for 20 second intervals with 3 minutes rest for the starter.
C): Crank each line until fuel is present and misting out with any air bubbles.
D): Close that previous line off and continue until it fires. If you see air bubbles in the line to the pre-filter while running, you have air ingress somewhere.

Any cracked rubber hoses, brown plastic fuel hoses need to be replaced..

Keep us updated.

ron59b · #8 03-09-2018, 08:40 PM

Thanks Jake for the detailed instructions. I also have another question that I believe you already have considered.

This is from my original post:

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I have a 1999 Mercedes E300 with 214,000 miles on it. I was driving home yesterday on the highway and noticed the car felt as if the cruise control had engaged. I was traveling along at 80 mph when I noticed the speed. After taping the accelerator, a couple of time the cruise seemed to disengage. after a few minutes, the car began picking up speed again and I tapped the accelerator again and disengaged the cruise control. The car began slowing down and I noticed lots of grey smoking behind me. 



When attempting to speed up, the car had a sluggish feel. I also noticed the clanking from the diesel engine appeared louder for a short time. I could coast to the nearest exit and pull into a parking lot. Once I got in the lot, the car cut off. I feared the engine was locked up. The engine did turn over when cranked, but did not start. It appeared the glow plugs didn't glow. The engine has a more labored feel as it turned over. I also checked the oil and the car does have a good level of oil in it. 



After having the car towed home, I am puzzled as to where to start in sorting out this issue.

When the glow plugs were replaced, they definitely needed replacement. Several we deteriorating and broke off. The only place there was a build-up of sludge was the intake air pipe.

With all of this said, does this make you think it was the dumping of fuel into the system that cause the initial problem? Does this sound more like the lift pump? I am having the car checked out as soon as it can be fitted in.

Ron

jake12tech · #9 03-09-2018, 08:52 PM

Ron, I'm curious how's the oil change history? And mileage intervals? When it cranks over, does it sound okay? You said it sounds labored? what does labored mean?

It doesn't sound line a lift pump. The way the car smoked and shut off I wonder if something happened with the timing chain. Also please tell me that idiot mechanic isn't working on it still. That guy doesn't know diddly.

ron59b · #10 03-10-2018, 07:29 PM

When I say labored, it seems to turn over more slowly. It is as if it's slight straining. It reminds me of when I'm trying to start a diesel in cold weather without the flow plugs warming.

I am waiting for a shop that I've used to be able to check it out. The car was purchased from a local guy that used it mostly for transport of his business customers. Afterwards he used it as his personal car. He told me the car was maintained by the same shop that managed his fleet of vehicles. When I purchased it the mileage was 214,000. I've had the car 1.5 years and have put about 300 miles in it.

Can you explain more about the possible timing issue, damage, and repair if possible.

ron59b · #11 03-11-2018, 02:46 PM

I did end up replacing the battery too. Let me know your thoughts?

Diseasel300 · #12 03-11-2018, 04:57 PM

If you aren't getting fuel injected into the cylinders, the engine will crank somewhat slowly due to no assistance from partial combustion. That's normal with no fuel.

If you had mechanical problems, you'd be hearing things hitting each other, or the engine would be bound up completely. There is just about *0* clearance in a diesel.

Get the car out of the shop its in (AND NEVER GO BACK!!!!), and take it somewhere else - ANYWHERE else. The likelihood of the IP failing are very low, it likely has an air leak somewhere (seals failing on the 606 fuel systems are extremely common) and the system is just aired up. A competent mechanic should be able to sort it out in a couple hours at most.

ron59b · #13 03-11-2018, 05:21 PM

Diesel300

What do you think caused the initial issue with the smoke, increased rpm, and eventual cutting off of the engine? Do you believe there isn't a problem with the lift pump either?

Thanks

Ron

Diseasel300 · #14 03-11-2018, 10:45 PM

Anything that causes an air leak on the suction side of the lift pump can cause it. It only takes a single O-ring to let go or a single plastic fitting to crack, and the lift pump will suck air instead of fuel. If the lift pump has indeed failed, it's a $150 part that bolts on the side of the injection pump. Don't pay the guy a cent. Get that car out of his garage. Take it to someone who can actually troubleshoot the problem.

Diseasel300 · #15 03-11-2018, 10:47 PM

For anyone else following or reading this thread in the future, the car has been in the shop undiagnosed for 11 months at this point:

1999 Mercedes E300 Grey Smoke and Power Loss = Breakdown???