Help - CLK 230 Shaking problems

[m_b]

I have 98 CLK 230, beautiful car, love it.

Tuesday evening stopped at the lights and the car started to shake, really shake. Turned off the engine and restarted and it was fine, but the car would not accelerated passed 40mph. Stop again and it would start to shake again, but while your driving (under 40mph) there appears to be no problems (no shaking)
Try to accelerate over 40mph and the revs would climb high but it felt as if the car did not want to over 40mph.

Left it into the mechanic Wednesday morning, computer diagnose came back fine, no problems. Checked over the engine and it also ticking over nicely
So the mechanic suspected the gearbox, so change the oil and filter in the gear box,

Mechanic reported back today the now the car does not shake as much, but it is still shaking slightly and he is still looking into the problem.
But does anybody have any ideas? or come across this problem before?

 

[Ian Brown]

I have 98 CLK 230, beautiful car, love it.

Tuesday evening stopped at the lights and the car started to shake, really shake. Turned off the engine and restarted and it was fine, but the car would not accelerated passed 40mph. Stop again and it would start to shake again, but while your driving (under 40mph) there appears to be no problems (no shaking)
Try to accelerate over 40mph and the revs would climb high but it felt as if the car did not want to over 40mph.

Left it into the mechanic Wednesday morning, computer diagnose came back fine, no problems. Checked over the engine and it also ticking over nicely
So the mechanic suspected the gearbox, so change the oil and filter in the gear box,

Mechanic reported back today the now the car does not shake as much, but it is still shaking slightly and he is still looking into the problem.
But does anybody have any ideas? or come across this problem before?

Sounds like the clutches are slipping in the gearbox or a valve not operating properly

 

[piestore]

clk shake

sounds like a missfire problem possibly air mass meter, i would expect fault codes another possibilty is oil in engine wiring loom, please check

 

[m_b]

Hi Lads got the car back on Friday, running allot better, but every know and again I’m still getting a slight shake. Gear box oil was replaced and also spark plugs where changed one of the spark plugs was covered in oil. The mechanic thinks now that a coil in the engine is cracked and leaking oil into the spark plugs? This is causing the engine to miss fire.

The car is fine just running around the city not bring the car over 60mph, bring it over 60mph and it starts to feel slightly different. Just doesn’t feel right. Then when you stop you get the shakes, but restart the engine and its fine again, that is until you go over 60mph.

So the car is going back in next week hopefully, he want to take the engine apart, change the engine mounts and fix a steering rod. Could the mass air flow sensor cause these problems?

Thanks for the help.
All fun and games…

 

[television]

Oil on the plugs is a valve problem,once oiled up it will not fire untill cleaned.
A simple compression test would reveal all.


Malcolm

 

[bundy]

yeah the air mass could be the problem. ie putting it into limp mode then clearing on restart a diagnostic would reveal all though.

regards ted

 

[Balal]

Have you changed the MAss Air FLow meter ?! is it any better now ?!

 

[m_b]

Sounds like we have the same problem Balal?. Same car/model and same year, what mileage are you at? I left the car in a week ago, oil in the gear box was changed and spark plugs and the car ran fine, but over 60mph and the power just was not there. When the mechanic changed the spark plugs he did noticed that one of the plugs was covered in oil, causing the engine to misfire, which was causing the shaking.

What caused the spark plug to fill with oil was one of the seals on cylinder heads was cracked and leaking oil?

Driving around the city and its fine just the odd shake here and there, restart engine when it does start to shake and it’s fine. But at the moment, there is just no power coming from the engine.

So the car is going back in next week, and the rings on the cylinder heads are being changed along with the engine mounts and a steering rod that’s busted. Mechanic said the engine has to come apart to have the parts fitted, and by taking the engine apart they will definitely get to the bottom of it.

So Balal try and hold off until next week and I’ll fill you in on how I get on, and fingers crossed we’ll get to the bottom of it.

 

[Balal]

Thanks m_b
well! I went to local merc dealer today. They were busy today so they didnt book in my car. but just as I was in parts section just enquiring about car part. A very helpful merc mechanic came there. And I just asked for his advise. He took my car keys. and ran the diagnostics for free. ( how nice is that!!! really impressed) . Anyways! there were still engine misfiring (1-4) fault. to which he said that it might be just spark plugs (which I didnt check since this problem started as I changed them in January). Also it says part A 16/7 at fault. He said he hasnt checked what this part is, and for that I have to book in for service. Does anyone know what this part A 16/7 is?!?

however! I will check spark plugs tomorrow. m_b have you got any sort of warranty on your car ?!?

 

[Balal]

Finally sorted the problem with my CLk stuttering.
Took my car to garage last week. and told the guy to check spark plugs. he checked the plugs. did compression test. All was fine.
While doing that he noticed that there is this small pipe that starts from the top of engine and goes down to gear box. (Thats what I am told) . Apparently he was reffering to it as vaccum pipe. so the vaccum pipe had a crack in it. so he sucked the oil out of it. and using a small clamp, put it back to its place and the car is flying again.
I changed exhaust,catalytic converter,mass air flow meter....and all along it was this little bugger. anyways! i am glad its finally working fine.
did you get your car back m_b ??

 

[m_b]

That's great news Babal, super stuff. My car went into the mechanic on Wednesday.

Called up to the garage on yesterday to see how things were going. And the engines is in pieces :-/ quite frightening to see it in this state.



Car of the engine to gone up to a specialize firm to clean the cylinders/kompressor etc.

A pressure test was carried out on the engine and it back as 4 – 12 – 14 -0
It take that this is not good?

Looking to the inners of the engine and it appears as if the previous owners have never looked after the car. As the oil is dirty, so the whole engine is getting cleaned down, the mechcanic said he can sort it out.

But when you look at the service booklet over the lifetime of the car it has been regularly serviced by different Merc dealers. I’m beginning to think the Mercedes stamp in the service booklet is worthless. Well hoping to get it back Saturday or Sunday. I'll let you now how it goes....