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Cold idle shake normal?

tonyblue

New Member
Joined
Nov 18, 2024
Messages
13
Location
Oldham
Car
C-class sport 200d auto
Hi, I have had my C200d with an om626 engine for a few months and notice a slight engine shake occurs during warm up, it is only apparent when 5 segments show on the engine temp display with 8 segments being normal temp at which it's smooth, starts very well and is ok until part way to normal temp, 5-8 segments.
Revs are steady, economy good and runs fine. Just been serviced at my indie and fuel filter replaced, no fault codes, tried Wynns injector cleaner as well.
Never owned a diesel before and on Google it does say they can be a bit shaky in general during warm up and Om626 isn't the best engine though I was surprised at how much power it has compared to my previous 2L Mazda 6.
Am I being picky and is this fairly normal for some diesels?
Thanks.
 
I had a similar problem with the OM642 V6 in my previous E Class.

With that car it was failed engine mounts. I had both replaced along with the gearbox mount and it cured the problem. As you say though, the engine in your car isn't the most refined diesel.

How many miles has it covered?
 
I had a similar problem with the OM642 V6 in my previous E Class.

With that car it was failed engine mounts. I had both replaced along with the gearbox mount and it cured the problem. As you say though, the engine in your car isn't the most refined diesel.

How many miles has it covered?
It's 70000 miles and as I say doesn't shake at all until part way through warm up so doubt it would be engine mounts, one occasion it really rocked the car but since then I've used injector cleaner and v power diesel and it is better, may be I'll have to live with it, mechanic said they can be a bit rough!
 
Just to add the car didn’t have any service history since 2018, garage I bought it from said they would do an engine oil & filter change but my garage found it hadn’t been done and the fuel filter hadn’t been done since 2018 at 6000 miles, doubt the air filter has been changed either, next job.
 

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