How many miles you got with the leaky injector?

You may have cylinder problems if it was driven like that.
I see that you have no possibility for a compression test, but it will be nice to do it...
However, if only the oil piston ring is damaged, you will still have compression, but will experience the issue that you have

 

I'm sure orange coolant exists, but not for MB? Maybe I'm just extremely picky but I'll never put anything other than the approved MB blue stuff in my car. I'd say it wouldn't hurt to do a coolant flush. It's not too expensive to do.

 

Let me go over this one more time, maybe I missed something?


I was driving one day and the check engine light came on.


I ran the codes and it told me that there were vacuum leaks.


I touched the lower vacuum hose and it broke


Replaced intake with a pre owned intake that had a perfect lower vacuum hose as well as all the other vacuum hoses. I also cleaned the injectors as well and I think I cleaned them incorrectly?


Started the car and it drove perfect for 2 days, I maybe put 40 miles on it.


Was driving on a 30 mile trip (not driving it hard and the check engine light popped on as I was getting off the freeway).


Got off the freeway and was stopped at a light when the car started stuttering and wanted to stall.


Was able to pull into a parking lot and shut it off.


Tried to start it 2 or 3 times and it started but not without it cranking the starter multiple times and giving gas (each time I started it I had been under the hood making sure that everything was ok)


The third time I started it I noticed smoke coming out the exhaust and a popping leaking exhaust sound coming from the back of the intake.


Had the car towed home


Removed the injectors and the egr valve to find the two bad injectors.


The egr gasket slipped sideways and was not on correctly so I replaced the gasket as well as the TB gasket. I also replaced all the injectors.


Started the car and I was getting multiple misfire codes as well as an 02 open bank 1 code. I was also still getting the smoke.


Replaced the spark plugs and started the car. I erased all the codes beforehand.


The car started and ran like a champ but after 30 seconds the smoke started and kept getting worse and worse.


I let it run for about 1.5 minutes until the smoke got so bad I had to turn it off.


It has been like that ever since.


This is everything and I hope we can catch something that we did not before? Thanks for all the help.

 

Can you confirm if smoke comes white only, or white/little blue..??

ZAYED,,

 

It looked very white to me and started out as a small amount of steam and then got worse like a boiling tea pot. There was condensation on the end of the pipe and it was water but that could have been coincidence. I do not have any check engine light on presently but have I let it run long enough?

 

I just want to rule out a couple of things that might cause the white smoke.


Could the EGR have been blown out to cause the smoke?


Since I was getting the 02 sensor fault could that cause the white smoke?


The smoke did not look blue when it came out and rose up? Maybe the oil smell and the color is that it is burnt? Is it possible that fuel could have somehow mixed with the oil because of one of these two issues? Since I changed the sparkplugs there are no misfire codes or 02 sensor. The car runs and idles fine.

 

I see, do you able to one of O2 sensors to figure if white smoke cover it all....

ZAYED,,

 

Not sure what you mean? Should I remove one of the 02 sensors? If so, which one? Could this cause the white smoke?

 

Yeah, anyone, just to see the head of the O2 sensor (see attached)..





ZAYED,,

 

No an O2 cannot cause white smoke.
No a EGR cannot cause white smoke
Water/coolant can and is about the only thing that will.

Is there coolant passages in the intake? I am not familiar with the ones on the C55 but if there is then start there.

If it were me I would have someone with a pressure tester check the coolant system for a leak. If it bleeds off pressure then it is leaking somewhere and they can tell if it is in to a particular cylinder or cylinders. Then they can compression test the cylinder to see if it is there and if not then it is the intake.

 

Thanks for chiming in Zeppelin and giving me insight on the EGR and o2. I went ahead and pulled an o2 just for the heck of it (pic is the one that came off of the lower passenger side). I don't see any white on it but I am also not an expert.


I thought of something else, there is a pvc pipe that goes into the rear of the intake and I think it goes to the brake booster? That seems kind of loose when it snaps in. I don't think it could cause the problem but just thought I would mention it.

 

The O2 sensor head looks clean, signs good, reflects no any issue with piston rings or cylinder head gasket,,

my conclusion that oil/coolant mixture causes that white smoke, maybe the reason of no blue smoke, that someone using another coolant color or no coolant at all, just ordinary water..!

ZAYED,,

 

I will cross my fingers that you are right. I semi tested the oil cooler and it seemed to be ok. If I buy another one, are you positive on the part number that you gave me 112-188-04-01? When I put that part number in to order it the description says that it does not fit my car. I think they are pretty much all the same on the 5.5's.

 

Do you have good brakes?

Will tell you why i ask.
In one of my previous cars i have the folowing problem:
Brake pump seals was leaking in to the servo booster, from the vacuum pipe the engine was sucking brake fluid and started to smoke like your.

Dont know if this is a your problem, but you can disconect the PVC tube near the trottle body and check for humidity inside of tube, or plug the hole in the manifold and start the engine without the PVC tube attached.

 

*oil cooler #: "112 188 04 01" or "112 188 06 01", both same #, x1



*oil cooler small hoses #: "112 203 03 82 ", x2



ZAYED,,

 

Off topic but I'm so mad that my valve cover on the passenger side started leaking again. I've taken that damn cover off so many times and applied new sealant. I think it's the worst design to have two metal parts sit on each other depending on a gasket sealer to seal it up...

 

interesting and something to consider

 

I will definitely consider your suggestion. I will let you guys know what I find as soon as I get everything back together.

 

What sealant are you using ?

 

Trying to absorb all of this...Zeppelin is right, usually white smoke will come from coolant/water burning and evaporating...did you say the car runs fine now, just has the white smoke?

Have you checked all of the radiator hoses to see if they are leaking? Coolant level isn't dropping at all?

When I replaced my coolant temp sensor a few months ago, I didn't seat the clip in properly so while I was driving it actually popped out of the hole and resulted in coolant pouring out of there and hitting all of the hot engine components and I got MAD white smoke everywhere until I pulled over and saw that the f***ing thing popped out. Just check some of that stuff too, it wouldn't hurt.

Duncan I feel your pain. My passenger side is okay but the driver side is still leaky. I actually didn't pry that breather cover off to reseal because of how much a PITA the passenger side was, but I may have to eventually just do it...

 

I have not had the chance to work on it this week, intersession finals are consuming my brain lol. Yes, the car runs fine but as it gets warmer the white smoke comes out thicker and thicker from the tail pipes. I have drained all the fluids and bought new gaskets and filters. I will update everybody when I have get it running. Lets cross our fingers!

 

Don't forget to change your engine oil. You said that its very thin...
I think it's contaminated fwith petrol from the leaking injectors...
And very thin oil can escape from the piston rings and causing same smoke like you described

 

All the fluids have been drained and the oil filter changed as well. That could also explain the toxic smell and dark color of the oil as well.

 

Ok, here is an update on the car.
I drained all the fluids including opening up the second oil drain plug to get it all out. I flushed the coolant and added new coolant. I started it up and for the 3 minutes it ran fine with no white smoke. Then a little white smoke started coming out but nothing like it was before. I drove the car and it seems to be lagging a little bit in the low end but it idles fine. I pulled it back in the driveway and the white smoke is still there but again, a lot less. I let it run for a total of 1/2 hour and right before I turned it off I went back and checked the smoke to find something weird. It smells like steam with a slight bit of sulfur. The car also smells like a slight funky burnt smell. I just went out and checked the oil cap for milkshake and it was cleaner then ever. I am guessing that everybody is stumped? I have made slight progress but I am so close to giving up.

 

When you saying white smoke thickness getting less, means very good sign,,

is the power goes worse when white smoke appears..??

ZAYED,,