E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

What is this??

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Old Jan 5, 2011 | 01:58 AM
  #1  
zheka's Avatar
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From: Sarasota, FL
2001 E320
Question What is this??

(This is not my actual picture, too dark outside for the pic, but I have the same engine)

The part that is circled in red, I just noticed today it was making a clicking sound. When I'd touch it, I can feel the clicks. I turned off the car, and started it back on, it wasn't clicking. But I lately noticed it quite a few time.

What is it? Whats it for? If its going out, anything negative it will do to a car? How bad is it that its broken? From what it seems like, its some kind of plug, relay, or a sensor, no idea. And I think it has 2 wires coming from it. Thanks in advance!

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Old Jan 5, 2011 | 02:17 AM
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From: HUNTINGTON BEACH CA
00_e430_sport
That is the purge valve. A little ticking is normal. If it is too loud, then you can try to clean it first. Go to benzworld and look for procedures in the W210 forum.
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Old Jan 5, 2011 | 09:37 AM
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From: Charleston, SC
GL450
Yeah, the ticking is normal. Most people think they have a ticking valve in the engine, but it's really this.
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Old Jan 5, 2011 | 10:25 AM
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From: Sarasota, FL
2001 E320
I thought the same exact thing, I started to think it was coming from the engine, until I noticed it was coming somewhere from the fender side
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