OM642 - oil burning brainstorming
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E350
OM642 - oil burning brainstorming
2013 OM642, 230,000km Had it stage 1 tuned and deleted then chaos followed.
Heavy white smoke:
- Seemed like a regen issue turned out to be bad injector cylinder 3 & 5 (dealer said they were totally fine) but had me drive about 5,000km arguing with my tuner till I did a fuel return test. Replacing those two fixed that issue.
Blue smoke: (oil everywhere in intake)
- Before turbo, replace the pcv valve and put a oil catch can inline fixing that
- After turbo, replaced the turbo (noticed no oil in up-pipe collector) this fix the oil in the charge air side, also cleaned the intake/intercooler of left over oil residue.
- Still blue, but not bad on cold start and light driving Till it get to temp. Then she’s blue boys, holds high idle (750rpm) for a bit then kicks to low idle (500) and the smoke stops completely. This cycle continues when I drive it and I’m sure it’s cheeching while I drive too.
So who here thinks I washed out the rings on those two cylinders, have bad valve stem seals, or carboned up oil rings on the pistons. I only post this to come in conclusion that I will have to pull the motor to do this work but ask to see if I’m missing something along the way that I could check.
Heavy white smoke:
- Seemed like a regen issue turned out to be bad injector cylinder 3 & 5 (dealer said they were totally fine) but had me drive about 5,000km arguing with my tuner till I did a fuel return test. Replacing those two fixed that issue.
Blue smoke: (oil everywhere in intake)
- Before turbo, replace the pcv valve and put a oil catch can inline fixing that
- After turbo, replaced the turbo (noticed no oil in up-pipe collector) this fix the oil in the charge air side, also cleaned the intake/intercooler of left over oil residue.
- Still blue, but not bad on cold start and light driving Till it get to temp. Then she’s blue boys, holds high idle (750rpm) for a bit then kicks to low idle (500) and the smoke stops completely. This cycle continues when I drive it and I’m sure it’s cheeching while I drive too.
So who here thinks I washed out the rings on those two cylinders, have bad valve stem seals, or carboned up oil rings on the pistons. I only post this to come in conclusion that I will have to pull the motor to do this work but ask to see if I’m missing something along the way that I could check.
Last edited by Bart44; May 3, 2023 at 01:59 PM.
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E350
Excuse me? If it was leaking from the oil cooler I would have seen the leak when I replace the turbo and I would have noticed all the oil leaking out the small hole near the rear of the motor. That also wouldn’t describe why it’s still burning oil (blue smoke) I discussed various oil locations that leak into the system to cause it to burn and the remedy’s I have done to fix those areas of concern. Yet it’s still burns oil causing blue smoke.
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Joined: Dec 2021
Posts: 144
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From: Calverton MD 20705
2013 W212 E350 RWD
Excuse me? If it was leaking from the oil cooler I would have seen the leak when I replace the turbo and I would have noticed all the oil leaking out the small hole near the rear of the motor. That also wouldn’t describe why it’s still burning oil (blue smoke) I discussed various oil locations that leak into the system to cause it to burn and the remedy’s I have done to fix those areas of concern. Yet it’s still burns oil causing blue smoke.
because you use Kilometers I assume english isn't your first language, or you're multilingual. That being said, yes, your post comes off as you franticly pondering what's wrong with your car! katjek is a good man, he'sm always being respectful and helping out. Your post lacks structure and flow making it hard to follow. You seem to be intent on pulling the motor and the first paragraph is your justification for it.
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Joined: Jun 2022
Posts: 739
Likes: 328
From: WA State, USA
2014 Cummins, 2014 E250 Bluetec
2013 OM642, 230,000km Had it stage 1 tuned and deleted then chaos followed.
Heavy white smoke:
- Seemed like a regen issue turned out to be bad injector cylinder 3 & 5 (dealer said they were totally fine) but had me drive about 5,000km arguing with my tuner till I did a fuel return test. Replacing those two fixed that issue.
Blue smoke: (oil everywhere in intake)
- Before turbo, replace the pcv valve and put a oil catch can inline fixing that
- After turbo, replaced the turbo (noticed no oil in up-pipe collector) this fix the oil in the charge air side, also cleaned the intake/intercooler of left over oil residue.
- Still blue, but not bad on cold start and light driving Till it get to temp. Then she’s blue boys, holds high idle (750rpm) for a bit then kicks to low idle (500) and the smoke stops completely. This cycle continues when I drive it and I’m sure it’s cheeching while I drive too.
So who here thinks I washed out the rings on those two cylinders, have bad valve stem seals, or carboned up oil rings on the pistons. I only post this to come in conclusion that I will have to pull the motor to do this work but ask to see if I’m missing something along the way that I could check.
Heavy white smoke:
- Seemed like a regen issue turned out to be bad injector cylinder 3 & 5 (dealer said they were totally fine) but had me drive about 5,000km arguing with my tuner till I did a fuel return test. Replacing those two fixed that issue.
Blue smoke: (oil everywhere in intake)
- Before turbo, replace the pcv valve and put a oil catch can inline fixing that
- After turbo, replaced the turbo (noticed no oil in up-pipe collector) this fix the oil in the charge air side, also cleaned the intake/intercooler of left over oil residue.
- Still blue, but not bad on cold start and light driving Till it get to temp. Then she’s blue boys, holds high idle (750rpm) for a bit then kicks to low idle (500) and the smoke stops completely. This cycle continues when I drive it and I’m sure it’s cheeching while I drive too.
So who here thinks I washed out the rings on those two cylinders, have bad valve stem seals, or carboned up oil rings on the pistons. I only post this to come in conclusion that I will have to pull the motor to do this work but ask to see if I’m missing something along the way that I could check.
The blue smoke, how long have you driven since you replaced the turbo and cleaned all that stuff? Have you rechecked your tubes to see if they are getting filled with oil again? I dont know but assume there is a intercooler which probably gathered a decent amount of oil and could be going back in the intake.
Personally I would check all the things you can verify without pulling engine, if none of that pans out then last part being pull the engine and take a look at stuff. Do you have a boroscope by chance or can you get ahold of one? May be a option to do some internal visual inspections.
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E350
So for white smoke, since you deleted and tuned it cant be a regen issue unless the tune was off and it was still dumping too much fuel. When you delete the DPF no longer mask any issues that you have had. I would assume that the injectors didnt go bad because you tuned the car, its very possible you had issues with them for a little or much longer time. All that smoke white/blue/black gets burned off in the DPF and you wont see it unless the DPF is cracked or somehow not doing its job (in which case it will clog rather quickly). No DPF no issue except now you can actually troubleshoot initial problem via visual indication.
The blue smoke, how long have you driven since you replaced the turbo and cleaned all that stuff? Have you rechecked your tubes to see if they are getting filled with oil again? I dont know but assume there is a intercooler which probably gathered a decent amount of oil and could be going back in the intake.
Personally I would check all the things you can verify without pulling engine, if none of that pans out then last part being pull the engine and take a look at stuff. Do you have a boroscope by chance or can you get ahold of one? May be a option to do some internal visual inspections.
The blue smoke, how long have you driven since you replaced the turbo and cleaned all that stuff? Have you rechecked your tubes to see if they are getting filled with oil again? I dont know but assume there is a intercooler which probably gathered a decent amount of oil and could be going back in the intake.
Personally I would check all the things you can verify without pulling engine, if none of that pans out then last part being pull the engine and take a look at stuff. Do you have a boroscope by chance or can you get ahold of one? May be a option to do some internal visual inspections.
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Joined: Sep 2023
Posts: 1
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2010 ML350 OM642 full delete, stg2 tune
Smokey the bluetec
2013 OM642, 230,000km Had it stage 1 tuned and deleted then chaos followed.
Heavy white smoke:
- Seemed like a regen issue turned out to be bad injector cylinder 3 & 5 (dealer said they were totally fine) but had me drive about 5,000km arguing with my tuner till I did a fuel return test. Replacing those two fixed that issue.
Blue smoke: (oil everywhere in intake)
- Before turbo, replace the pcv valve and put a oil catch can inline fixing that
- After turbo, replaced the turbo (noticed no oil in up-pipe collector) this fix the oil in the charge air side, also cleaned the intake/intercooler of left over oil residue.
- Still blue, but not bad on cold start and light driving Till it get to temp. Then she’s blue boys, holds high idle (750rpm) for a bit then kicks to low idle (500) and the smoke stops completely. This cycle continues when I drive it and I’m sure it’s cheeching while I drive too.
So who here thinks I washed out the rings on those two cylinders, have bad valve stem seals, or carboned up oil rings on the pistons. I only post this to come in conclusion that I will have to pull the motor to do this work but ask to see if I’m missing something along the way that I could check.
Heavy white smoke:
- Seemed like a regen issue turned out to be bad injector cylinder 3 & 5 (dealer said they were totally fine) but had me drive about 5,000km arguing with my tuner till I did a fuel return test. Replacing those two fixed that issue.
Blue smoke: (oil everywhere in intake)
- Before turbo, replace the pcv valve and put a oil catch can inline fixing that
- After turbo, replaced the turbo (noticed no oil in up-pipe collector) this fix the oil in the charge air side, also cleaned the intake/intercooler of left over oil residue.
- Still blue, but not bad on cold start and light driving Till it get to temp. Then she’s blue boys, holds high idle (750rpm) for a bit then kicks to low idle (500) and the smoke stops completely. This cycle continues when I drive it and I’m sure it’s cheeching while I drive too.
So who here thinks I washed out the rings on those two cylinders, have bad valve stem seals, or carboned up oil rings on the pistons. I only post this to come in conclusion that I will have to pull the motor to do this work but ask to see if I’m missing something along the way that I could check.
cheers,
