C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Exhaust leak? problem ?

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Old Apr 26, 2007 | 12:05 PM
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GraniteG's Avatar
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Question Exhaust leak? problem ?

I removed my resonator around 4 months ago, recently I noticed a sound like "thump thump thummp" sound when the car is warming up. But when the car is warm, the sound is gone.
Could it be I have an exhaust leak ? if so, will it cause problems ?
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Old Apr 27, 2007 | 02:21 AM
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CATS perhaps?
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Old Apr 27, 2007 | 02:49 PM
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Originally Posted by GraniteG
I removed my resonator around 4 months ago, recently I noticed a sound like "thump thump thummp" sound when the car is warming up. But when the car is warm, the sound is gone.
Could it be I have an exhaust leak ? if so, will it cause problems ?
Yes mate, it leaks on the seam of manifold. Refer to the old message under my name : Ruby Mardiono
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Old Apr 27, 2007 | 04:00 PM
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The Komps make a funny noise for about 30-60 seconds when warming up,
till some valve opens.
Also check to see if it's in contact with the shield around the muffler.
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