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 and should it be ticking?

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Old Sep 7, 2005 | 06:25 PM
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1998 E320
What is this and should it be ticking?

Driver's side near the window washer fluid reservoir.

THX

Bob
Attached Thumbnails What is this and should it be ticking?-sensor-002.jpg  
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Old Sep 7, 2005 | 07:02 PM
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2025 AMG CLE53, 2025 Range Rover P550E, 2025 Ford F150 Raptor
Ahhhhhhhh, it's a bomb, run, run away!!!!!!!!


Well, that was worthless, now wasn't it? I'm sorry.

Could it be something to do with your ABS braking system?
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Old Sep 7, 2005 | 07:11 PM
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Mine ticks as well, exact same thing.
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Old Sep 7, 2005 | 08:38 PM
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'98 E320 4Matic, '85 380SL
Mine ticks occasionally too...but I always thought it was the silver ETS/ASR module just inboard of what you circled. Guess not.
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Old Sep 8, 2005 | 06:57 AM
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1998 E320
Originally Posted by lexrex
Mine ticks occasionally too...but I always thought it was the silver ETS/ASR module just inboard of what you circled. Guess not.
I tried to cup my ears and closer feel for what was actually making the ticking and the sensor seems a better guess....
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Old Sep 9, 2005 | 06:47 AM
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1998 E320
Answer

posted on another site:

RE: What is this and should it be ticking?

That is a purge valve and yes it ticks or pulses not all the time only when needed and during a obd 2 self test.It is used to vent the excess vapors ect. in the fuel system.
Sam
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Old Sep 9, 2005 | 08:56 AM
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Originally Posted by bob98e320
posted on another site:

RE: What is this and should it be ticking?

That is a purge valve and yes it ticks or pulses not all the time only when needed and during a obd 2 self test.It is used to vent the excess vapors ect. in the fuel system.
Sam

this is what i was told by the MB dealer.
but my car makes the ticking noise constantly.
it makes the noise at the same pace all the time, especially when the car is on but in park.
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Old Sep 10, 2005 | 08:39 PM
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Originally Posted by king_j
this is what i was told by the MB dealer.
but my car makes the ticking noise constantly.
it makes the noise at the same pace all the time, especially when the car is on but in park.


its just getting worn and it works in a louder state, get a new one and you shouldn't be able to hear it. depending on the mileage of your car it may be leaking vacuum too... check it out
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