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  #1  
Old 06-04-2006, 09:29 PM
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Where is the Charcoal canister shut-off valve located on a 1999 C230

I'm trying to solve a CEL problem (code P0455) on my 1999 C230-Kompressor. I've already replaced the gas cap so I'm on to the next likely culprit, the "Charcoal canister shut-off valve" but it isn't where I thought it would be.

Does anyone know where to find it? I took some pictures of where I expected to find it. They're from the rear, passenger-side wheel well with the liner removed. Thanks,

Don
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Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0905a.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0907a.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0912a.jpg  
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Last edited by DonB; 06-04-2006 at 09:35 PM.
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  #2  
Old 06-04-2006, 10:02 PM
carson356
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[QUOTE=DonB]I'm trying to solve a CEL problem (code P0455) on my 1999 C230-Kompressor. I've already replaced the gas cap so I'm on to the next likely culprit, the "Charcoal canister shut-off valve" but it isn't where I thought it would be.

Does anyone know where to find it? I took some pictures of where I expected to find it. They're from the rear, passenger-side wheel well with the liner removed. Thanks,

Don[/QUOTE
have you checked the regeneration valve? i have seen a few of them not cycle propery not allowing enough vacuum go to the tank and set that code.
on the 202 chassis the the canister shutoff valve is the white canister next to the charcoal canister, which on this model is down by the fuel pump and filter

Last edited by carson356; 06-04-2006 at 10:14 PM.
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  #3  
Old 06-05-2006, 09:14 AM
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Is it possible that a bad charcoal canister can create stalling?
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Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8,[/B] 50 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 245000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).
E-class, W210 320CDI, 2000[/B], 225 000km, Sold
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  #4  
Old 06-06-2006, 09:45 PM
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Thanks Carson, I'll look for it this weekend. On your suggestion about the regeneration valve; is that the same as the Purge control valve? If so, then yes, I was considering it, but I was going by this post from Gilly:

HELP! 1997 E-420 P0455 EVAP Leak

Excerpt
"I'd say if you want to "throw a part" at the problem, with about 75% probability the shut-off valve is the problem."

I don't have the test tools he mentioned, so I was going to try his advice. What do you think?

Don
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  #5  
Old 06-08-2006, 03:37 AM
carson356
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Quote:
Originally Posted by DonB
Thanks Carson, I'll look for it this weekend. On your suggestion about the regeneration valve; is that the same as the Purge control valve? If so, then yes, I was considering it, but I was going by this post from Gilly:

HELP! 1997 E-420 P0455 EVAP Leak

Excerpt
"I'd say if you want to "throw a part" at the problem, with about 75% probability the shut-off valve is the problem."

I don't have the test tools he mentioned, so I was going to try his advice. What do you think?

Don
what you could do is remove the shutoff valve and supply voltage to it and blow in to the end or draw vacuum and see if it holds.
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  #6  
Old 06-11-2006, 01:09 PM
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Wow, I'm beginning to think the car doesn't have a "Charcoal canister shut-off valve". I looked all over, but haven't found it. Here are pictures of the fuel pump and filter, but no valve that I can see. Where else should I look? Thanks,

Don
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Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0959_resize.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0963_resize.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0965_resize.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_0967_resize.jpg  
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  #7  
Old 06-12-2006, 03:40 AM
carson356
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Quote:
Originally Posted by DonB
Wow, I'm beginning to think the car doesn't have a "Charcoal canister shut-off valve". I looked all over, but haven't found it. Here are pictures of the fuel pump and filter, but no valve that I can see. Where else should I look? Thanks,

Don
here is a picture, if it is there, it is further forward, the white unit the line is touching, you will need to remove the entire cover.

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  #8  
Old 06-13-2006, 10:08 PM
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Thanks Carson, I guess I'll have to look again. I got this drawing from the dealer. It looks similar to your picture. I'll take another look this weekend.
Thanks again,

Don
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Where is the Charcoal canister shut-off valve located on a 1999 C230-jun13-01a.jpg  
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  #9  
Old 06-14-2006, 03:29 PM
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I also am getting the P0455 code, so I need to check the gas cap and the Charcoal canister shut-off valve. But where do I look for the regeneration valve/Purge Control Valve on a 2000 C230K? How is this checked?
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  #10  
Old 06-15-2006, 10:26 PM
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My low fuel light flashers after I have taken my ten mile trip to work. And now my CEL is on with the P0455 code. I ordered a new fuel cap from Phill today. He suggested the regeneration valve; $63.00 would be next to check. He said he has sold some of these over the years. As for the Charcoal canister shut-off valve; $150.00 he has not sold any of these for the C230. So where is the regeneration valve and how do you check it?
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  #11  
Old 06-15-2006, 11:57 PM
carson356
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Quote:
Originally Posted by tuultyme
My low fuel light flashers after I have taken my ten mile trip to work. And now my CEL is on with the P0455 code. I ordered a new fuel cap from Phill today. He suggested the regeneration valve; $63.00 would be next to check. He said he has sold some of these over the years. As for the Charcoal canister shut-off valve; $150.00 he has not sold any of these for the C230. So where is the regeneration valve and how do you check it?
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  #12  
Old 06-16-2006, 08:47 AM
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Purge control valve (under hood as in the pic) make a "tick-tick" noise when it's working properly. Warm the car, stop, pop the hood and listen for the noise and feel the valve as well as it can be felt working. I replaced my own this spring to clear the code, worked like a charm. My mechanic said that the shut-off valve is RARELY at fault.

As for diagnosis, he was able to use the SDS to determine which compenent was faulty. I presume there is some sort of emissions adaptation values or other way, but I didn't get specific with him.
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  #13  
Old 06-24-2006, 03:33 PM
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OK, somebody stole my shutoff valve! All the drawings say it should be there, but it's not. Maybe a there was model change? If I do have one, it must be somewhere else (see pictures). From all the comments, it sounds like I should try the other valve, so I'll let you know how it worked out. Thanks everyone for all the help.

Don
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Where is the Charcoal canister shut-off valve located on a 1999 C230-img_1024_resize.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_1013_resize.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_1025_resize.jpg   Where is the Charcoal canister shut-off valve located on a 1999 C230-img_1015_resize.jpg  
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Last edited by DonB; 06-24-2006 at 03:41 PM.
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  #14  
Old 06-24-2006, 03:48 PM
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Starfinder is wrong on this one- the shutoff valve (and canister) is on the LR side- behind the fender liner. I've never seen one by the fuel pumps.

To help everyone- if the regeneration/purge valve is clicking after running a few minutes- pull the canister side hose off- the valve should be applying vacuum to the canister- if it is, it's probably OK. The shutoff valves are very common- easiest way to check is to plug it off and see if the system holds vacuum then- thats what the car does when it runs the test- actually you could get the car to run the test for you- must have between 1/4 and 3/4 a tank of fuel and let the car run an OBD2 drive cycle- if the code doesn't come back, the leak is gone.
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  #15  
Old 06-24-2006, 11:29 PM
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OK, I've replaced the purge control valve and cleared the code. If the CEL is going to turn on, it will be a couple of days.

MBtech21 - Thanks, I was starting to think I was nuts! But to clairify, were is the "LR side"? Does that mean Left-Rear side? Is that the driver or passenger side? I assume it's on the rear. Thanks,

Don
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Old 06-24-2006, 11:29 PM
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