GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

Excessive smoke

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Old Oct 9, 2021 | 08:58 AM
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Injector issues / Excessive smoke

Hi
Could someone please look at these pics and confirm to me what i think. I have had issues with excessive white smoke out of the pipes when the engine is warm (diesel) and after some advice i received on here have had a few tests done like cylinder head test etc and all's well. I think its the no 2 injector that's the issue and if you agree do you think its a new injector that's required or do you have any suggestions.




Thank you for looking and would really appreciate any help

Last edited by alancaw; Oct 9, 2021 at 10:09 AM.
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Old Oct 9, 2021 | 02:51 PM
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You don't list the year or X164 GL model you have. Since the 164GL's only 6 cylinder is a diesel, it is safe to assume you have a diesel. The diesel forum is where you will have the most luck.
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Old Oct 9, 2021 | 02:59 PM
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Thanks
Yeah sorry about that it is the 6 cylinder Diesel
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Old Oct 11, 2021 | 01:58 PM
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More than likely, you have a head gasket leak. The white smoke is indicative of the engine having coolant leaking into the combustion chamber.
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Old Oct 12, 2021 | 02:41 AM
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Hi

Yeah that was my first thought but i have had a head gasket test and it was fine plus its not using any coolant
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Old Oct 12, 2021 | 08:54 AM
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I can't read what those pictures say, other than that I notice the (I assume) #2 is vastly different than the rest. What test is that showing? I'm probably not the one to interpret these kinds of tests but maybe someone else can. But if you can figure out if the injector is leaking, or something like that, then yes, that could be the problem. Certainly, whatever you're showing there points one in the direction of the injector. Most decent size cities have fuel injection shops that can rebuild injectors. BUT maybe there's a more inclusive test that can be done, still?
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