insame1

Anyone know where this thing is located? I just realized my reg is up tomorrow and I have been avoiding dealing with it.

thanks

Racin_fool

should be in the fender liner near the fuel filler neck at the rear of the car.

insame1

I'll take a look thanks. Anyone know if cleaning it will help?

insame1

Update. Took a look and mine isn't connected to anything

cm60k

I think this should connected to the "purge valve",,

if you leave it like this, air builds in the tank constantly..!!

-;ZAYED;-

insame1

yeah i was looking around but there are no hoses anywhere.

I started getting this code after my fuel sending unit cracked and I replaced it. I am going to buy the part and replace it so I can pass smog but I would like to get it put back togather correctly. Anyone have a diagram of what is supposed to be connected and where they go?

cm60k

Have to follow the hoses & the main line goes & back to the purge valve..

-;ZAYED-;

insame1

Thank you very much sir. I haven't been able to get my EPC working yet. This dosen't really show anything connected to the valve though. Ill have a look when I get home and see if I can figure it out.

insame1

So as far as I can tell there is nothing to connect to the valve. Could it be that it vents there? I am lost. I am going to buy the new part, install it and hope it passes smog.

Racin_fool

Correct.. The charcoal canister shutoff valve does not connect to anything on your car, other than the charcoal canister itself (where it sits).. Some cars like the R171 SLK might have a short tube on it, but that is only because they are mounted under the car by the rear axle without much protection. If you really wanted to go through and protect it from further dust intrusion/contamination, you could rig up some sort of air filter on the end of it.

insame1

thanks for the reply. I've been racking my brain on this one. The barbs on both sides are usually indicative of connected hoses. It seems that this part is used in many cars though and I wouldn't be surprised if it was used on non mb makes.

insame1

I replaced the valve this weekend with a new part and new wiring harness adapter both OE MB parts and the code came back after I cleared it. anyone else have this issue? what was the final fix?

Racin_fool

First.. if you have a way to actuate the valve, check to make sure it actuates properly.. There have been many cases over the years that I have found the wiring in those adapter harnesses to be swapped causing it to open when it is supposed to be shut and vice versa.
What codes are you getting? Major/minor purge system leak?

insame1

I guess i will be checking the wiring this weekend. I am only checking it with a generic scanner so I am getting the p0446 code. I haven't got my c4 working correctly yet.