What part is this?
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2001 Mercedes C Class C200 CDI(W203)
What part is this?
Hi All,
There is a clicking sound coming from this part under the hood. Its a rectangular back box which looks like a large relay or something placed a little ahead of the battery.
The clicking is at its loudest just as I start the car and seems to go away a few minutes later. What part it this and why is it clicking, Thanks
Cheers
There is a clicking sound coming from this part under the hood. Its a rectangular back box which looks like a large relay or something placed a little ahead of the battery.
The clicking is at its loudest just as I start the car and seems to go away a few minutes later. What part it this and why is it clicking, Thanks
Cheers
Thread Starter
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2001 Mercedes C Class C200 CDI(W203)
I think it is called the ABS ECU Control Module placed next to the ABS pump.
No, there are no lights popping up in the dash except for the glow plug sign which comes on ever so often.
Now the question is why is the ABS ECU Control Module making a clicking sound. Is it normal/expected behaviour? If not, what does the clocking sound signify? Thanks
Last edited by indimb; Dec 4, 2013 at 06:47 AM.
Member
Joined: Dec 2013
Posts: 168
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From: USA, WA
2006 C55, 2024 GLC300 SUV
Hi All,
There is a clicking sound coming from this part under the hood. Its a rectangular back box which looks like a large relay or something placed a little ahead of the battery.
The clicking is at its loudest just as I start the car and seems to go away a few minutes later. What part it this and why is it clicking, Thanks
Cheers
There is a clicking sound coming from this part under the hood. Its a rectangular back box which looks like a large relay or something placed a little ahead of the battery.
The clicking is at its loudest just as I start the car and seems to go away a few minutes later. What part it this and why is it clicking, Thanks
Cheers
This is a control unit of glow candles A 646 153 65 79
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 24
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2001 Mercedes C Class C200 CDI(W203)
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 24
Likes: 1
2001 Mercedes C Class C200 CDI(W203)
Bingo. This looks identical to my unit and the glow plug light in the dash comes off and on while driving so this seems to be the culprit. Thanks alot ODB!
What does the clicking sound from the glow candle control unit signify? Is it expected behaviour or somethings gone awry, Thanks Again.
What does the clicking sound from the glow candle control unit signify? Is it expected behaviour or somethings gone awry, Thanks Again.
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Member
Joined: Dec 2013
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From: USA, WA
2006 C55, 2024 GLC300 SUV
If the spiral icon on your dashboard goes out after ignition and do not lights again, it means that everything is ok. i will try to hear my one to determine this clicking sound.
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Thread Starter
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2001 Mercedes C Class C200 CDI(W203)
Im facing another major issue with the radiator fan running very slow even though the coolant temp is around 95 degrees celsius and a/c high pressure is around 225psi. Hope these 2 issues are not related to each other?
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
This is what causes the ticking sound on gasoline powered cars. It is the EECS (evapourative Emissions Control System) Purge Valve. Yours is diesel.
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From: USA, WA
2006 C55, 2024 GLC300 SUV
Thread Starter
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2001 Mercedes C Class C200 CDI(W203)
Yes Sir, thank you. In fact, most of the threads I came across were based on this purge valve, which is why I got confused. Thanks for clarifying the same. Mine is diesel indeed and I have the glow candle control unit placed around the same area near the battery and ABS pump.
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2001 Mercedes C Class C200 CDI(W203)
As per the mechanic, glow candle no.2 needs to be replaced. Hope its an easy DIY?
The mechanic has already given me a disclaimer that the glow candle may break during removal and if that happens, I should forget about my car for a few days
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2001 Mercedes C Class C200 CDI(W203)
As rightly pointed out by ODB above, you need to get your glow candles checked, there are 4 of them and see if the sound goes away after replacing the faulty glow. Hope this helps.
Last edited by indimb; Dec 6, 2013 at 04:58 AM.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Thread Starter
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2001 Mercedes C Class C200 CDI(W203)
Thanks for pointing that out Glyn. ODB referred to it as glow candle so I thought thats what its called. I'm just glad to have found out the issue and hope to have it fixed asap, Thanks & Cheers
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From: Sacramento via San Francisco
2002 C320
So for a little while there i kept thinking, "what the hell do the headlights have to do with any of this".
