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Message: <blockquote data-quote="BallzDeepNU" data-source="post: 1516263" data-attributes="member: 598317">its an '04 clk320, and when I start up the car it has this loud ticking noise from the engine.  I'm sure it's not the timing belt, and I suspect it has to do with the engine internals.  when I go from 0-10 or 20 mph, the ticking noise becomes faster.  but after driving around for a while, the ticking goes away.  the ticking does come back though, when I leave the car parked with the engine on for about 20 seconds.  any answers?i have about 94K miles on the car.  I checked the oil as soon as I heard the noise, and the oil level is good.  Do you think my car is still driveable? or is my engine going to grenade?</blockquote>