Activated Charcoal Filter




Yes sure, code: "P0307", refers to Cy:# "7", you may have a bad (Plug/Plug wire/Coil)....?!?!?
ZAYED,,
I found the canister and next to it was I guess some kind of shut of valve? I took it apart and there was a foam filter which was very dirty. I washed it and install it back. I'm hoping this will cure the problem having where I can't put gas in my car. Every time I press the gas nozzle it stops, press again and it stops and so on. I have to take off the hose in front if the purge valve to release the vapor pressure. Than able to put gas in my tank.
I will check today to see if cleaning that filter worked.
The Best of Mercedes & AMG
I found the canister and next to it was I guess some kind of shut of valve? I took it apart and there was a foam filter which was very dirty. I washed it and install it back. I'm hoping this will cure the problem having where I can't put gas in my car. Every time I press the gas nozzle it stops, press again and it stops and so on. I have to take off the hose in front if the purge valve to release the vapor pressure. Than able to put gas in my tank.
I will check today to see if cleaning that filter worked.

Anyhow, please post your findings when you have them and maybe a pic or two of where, exactly, this canister is located? Thanks.
I can't believe this made such a huge difference but it did.
Here's where to find it and what to do to clean it.
It's in the driver side rear quarter panel.
Take of the tire.
To your right there are some plastic bolts you need to remove.
This will allow you to remove the plastic panel.
Now you will see the charcoal canister.
Next to it on the left side you will see this round white plastic "cup" looking thing.
It has a rubber piece that detaches from the metal holding it.
Remove it, you also have to disconnect the electric wire attached to it.
I believe there was also some tape of some sort holding it in place but not sure now.
Either way its an easy removal. Now you will see four clips you must pull apart and the top comes off
This cup looking thing, Inside you will see the sponge filter.
Remove it and clean it out well and put back.
You can use some soap or k&n air filter cleaner or other...
Rinse well and allow to dry, I just rinsed it really good and put it back.
Hope this helps.
Last edited by speed43; Feb 13, 2013 at 02:04 AM.
Anyone know where I can buy the charcoal inside those canisters?
What's worse now is that the gas seems to stay on top and wants to flood over??
It's as if the tube/hose is clogged 12 inches from the gas hole.
Does that make sense, how can it have gotten clogged?
All I know is that the gas nozzle leaves gas up on top which some gas flooded over to my quarter panel.
Any ideas what's causing this?




Mostly; Vent system causes that,,
1) Purge valve not working properly
2) Cracked or small holes or clogged or some dirties in the hoses goes & back from the Purge valve
3) Shut-off valve in the "Charcoal Filter" not working or clogged
4) The breath line in the "Fuel Filter" has some dirties or clogged
ZAYED,,
Last edited by cm60k; Feb 17, 2013 at 06:08 AM.
Mostly; Vent system causes that,,
1) Purge valve not working properly
2) Cracked or small holes or clogged or some dirties in the hoses goes & back from the Purge valve
3) Shut-off valve in the "Charcoal Filter" not working or clogged
4) The breath line in the "Fuel Filter" has some dirties or clogged
ZAYED,,
. Damn thing keeps clicking off more and more as I try to fill her up! 1 - where is this, "purge valve" of which you speak?

2 - where is this, "shut off valve", also of which you speak?

3 - could the fuel expansion tank (located on the passenger side) be the culprit?

Help me get back to happy motoring!




Zayed, thanks for posting those pics and part #'s!
Attachment 256913
2) Shut-off valve, located in the top of the charcoal filter it self(round valve)
Attachment 256914
3) Fuel expansion tank, located in rear wheel house passenger side, could be clogged(much sandy carbon dust)
Attachment 256915
ZAYED,,







