W210 - 2001 E320 - Mercedes-Benz Forum

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post #1 of 4 (permalink) Old 02-21-2012, 12:26 PM Thread Starter
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W210 - 2001 E320

WHAT IS IT - I am trying to identify a part in engine compartment located behind windshield fluid resevoir and next two ABS control box. The part has an electrical connection and two hoses connected to it - on top under electrical connecter it has printed the letters MOT with an arrow pointing to front of vehicle. This part on my car is making a clicking noise.

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post #2 of 4 (permalink) Old 02-21-2012, 01:55 PM
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1 picture is worth 1000 words.
Would go to check on my car, but it is diesel.
I invite you to W210 section. Lot of pictorials and fixes already there.
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post #3 of 4 (permalink) Old 02-22-2012, 09:30 AM
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Clicking sounds like the duovalves but the location is wrong. Please post a pic.

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post #4 of 4 (permalink) Old 02-24-2012, 01:01 PM Thread Starter
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The part on the vehicle is the purge valve and the clicking noise is normal. Cleaning instructions were also given with the answer. You can see full explanation under W210 forum. Thanks to everyone for their help.

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