California

Hi Eddie and Rudeney, No I like the car, just being picky. If I do anything, I'd trade it in for a C250. My ideal CLK would be a Euro CLK230 Kompressor...

(yes I think they made them)

SickSpeedMonte

My worst fears are
1.) Metal shavings in my engine (there are pictures floating around where the teeth are completely gone from the sprocket, one is in the TSB), and
2.) The timing chain falling off or skipping time on the crank or cam sprockets while the engine is running.

Rudeney

Those are big concerns of mine, too. I know some people have talked about doing oil quality tests to see if the gear was dumping particulate, and the findings were "inconclusive". There will always be fine metal particulate in the oil - that's just part of normal wear and tear on an internal combustion engine. And even when properly forged, those sprockets and the timing chain will wear away over time - I'd give them a good 300K miles or better. What I would fear is a large chunk of a sprocket tooth breaking loose and going for a ride in the engine.

As for the timing chain falling off or skipping, I don't see this. As long as the main crank sprocket and cam sprockets are solid, and there is some part of the idler sprocket for the chain to ride on, it can't get too far out of time - just by the shrinking diameter of that idler. Of course on the V6, if the idler sprocket goes completely, then the balance shaft would skip or stop rotating and that could cause all sorts of vibration problems.

California

Uh... years and 20,000 miles later, my transmission fluid is brown and the MB dealer is still saying that it is not MB specified to drain the CLK transmission fluid altogether. Glyn or Rudeney, will you please post for me again the MB 722.9 procedures for draining ALL the transmission fluid on my 2006 CLK350?

It is shifting too loud and too hard from reverse.

My car does have the drain plug, correct?

Rudeney

Here are the WIS docs:

http://benzbits.com/722_9/FluidFilterChange.pdf
http://benzbits.com/722_9/TorqueConverterDrain.pdf
http://benzbits.com/722_9/FillFluid.pdf

Yours probably has a torque converter drain. If not, then change what you can, then do two more changes over 60 days and you'll be pretty close to getting it all fresh. You can use an infrared thermometer aimed right at the pan to check the temperature.

California

Thanks Rudeney... it does have the drain.

Benzfan2018

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  I recently bought a 2006 CLK350 Cabriolet and did some research which stated there is problems with the balance shaft and steel gear wearing out. My CLK350 has almost 140000 miles with no check engine light and I had it scanned today which showed no codes..The care runs fine and hopefully either the repairs for this issue were already done or there was never a problem to begin with.
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Rudeney

Keep in mind that not all of these engines fail. Or, they don;t fail until very high miles, by which time the rest of the car is end-of-life anyhow.