Former lurker with engine trouble! - Mercedes-Benz Forum

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post #1 of 4 (permalink) Old 11-17-2010, 11:51 PM Thread Starter
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Former lurker with engine trouble!


I have a 1998 E320 wagon with abut 150,000 miles on it that has started running rough and making a noise at idle that sounds like the tapping of little hammers in the engine - tuneful enough that at first I though I was just sitting next to someone listening to music. This has now degenerated into a ghastly loose-sounding rattle.

Is this the sound of my engine dying, or something that can be relatively simply repaired by a semi-competent mechanic?

I've always been good about premium gas, oil is changed regularly, etc...

Fingers crossed!
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post #2 of 4 (permalink) Old 11-18-2010, 12:52 AM
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You need to lurk more in the W210 forum.

Hard to diagnose noises on a forum, but from that description it's possible you have a failing cat. That is a classic sound and it would account for the rough idle, too.

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
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post #3 of 4 (permalink) Old 11-18-2010, 12:56 AM Thread Starter
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Thank you!

I will go and lurk/search along those lines and in the proper place - it is a very distinctive sound that one of my daughters described as "little gnomes hammering on the pipes with mallets."

I'd rather not say that to a mechanic, somehow...
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post #4 of 4 (permalink) Old 11-18-2010, 01:11 AM
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It does sound like a cat has gone. You can tell if you lift the car and hit the cats with the palm of your hand and they rattle then they are finished.


People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf - George Orwell
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