CLK-Class (W208) 1998-2002: CLK 200, CLK 230K, CLK 320, CLK 430 [Coupes & Cabriolets]

Very rough running 200K

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Old Feb 14, 2021 | 05:49 PM
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CLK 200 Kompressor
Very rough running 200K

'01 CLK 200K 163 ps Automatic
Hi, i need some help please. I have a engine vibration when accelerating. I started to notice it about 4 years ago and i still can't find the problem. It appears and disappears with no reason. Sometimes it runs smoothly, sometimes catastrophic and the whole car vibrates. I replaced the entire engine and it does the same. No errors on STAR. New MAF, plugs, O2, coils, filters, seals...
Please help me if you know something, i like the car and i don't want to sell it..
Thanks

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Old Feb 15, 2021 | 04:42 AM
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CLK 200 Kompressor
@Out Of Control! Thanks for reply.
I have Xentry C4 but what live data should I check?
What should i check at the ignition?
Mounts are new
Performance is good (0-100 measured) also when it's vibrating
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Old Feb 15, 2021 | 12:22 PM
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Please describe the situation further. Are you convinced the engine is vibrating? What about the the wheels, tires, suspension, steering or brakes?

What do you think is causing the vibration?
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Old Feb 16, 2021 | 05:00 AM
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CLK 200 Kompressor
@chassis The vibration is clearly coming from the engine because you can notice it also when accelerating on standstill and also with the hood open it sounds and vibrates bad.

Wheels tires brakes suspension all changed and checked.
​​​
I'm thinking to try replacing the ECU, maybe there's the problem

Last edited by VladStefan; Feb 16, 2021 at 05:02 AM.
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