ryanblace, the pictures seem to be missing now. I know this is several years old.

I have a 96 E300D and think the fuel filler neck needs to be replaced. Fuel leaks consistently.

 

Has anyone tried just sealing the leak? Is it recommended? What was the result?

 

Yes, it's been tried...I believe a fella from Canadia managed to do it, but it's supposedly not a simple task due to the nature of the material it's made out of.

 

hello, resurrecting this oldie but goodie thread again....


Purchased an '05 C230 with 28k miles in July. Have put on 4k in 2 months. P0456 like everyone else.


So here's my dilemma. Emission is good until next July. Not willing to spend $400-$500 for the replacement part or bother with a used part. Any reason to not just drive it and periodically clear the code?


Thanks in advance.

 

Hello. Another thought. Since this seems exclusive to the '05 cars, does anyone know if another year part would fit?


Thanks.

 

i had the same issue with my 2005 c230 and i had to replace the entire assembly

 

Sorry to dredge up an old thread. I may be replacing the fuel filler assembly on my 2005 C230. Based on the write up in the earlier post, this job appears to be within my skill set. It would be helpful to have the pictures that are no longer appearing in the posts. Does anyone know where I can find the illustrated procedure for this job? If the original poster is still active, will you please update the photos?

Thanks,

 

I used Ryanblace's instructions to replace my fuel filler assembly. I usually don't like to just throw parts at a problem, but I found a used, updated part on ebay for $145. I figured it was worth a making an exception to my usual practices as I would have spent that much on having the car smoke tested or buying my own smoke tester. Since the consensus is that the filler assembly is the problem, I think I took a prudent risk. I've driven over 200 miles since the replacement, without the CEL illuminating. I usually have to reset it after approximately 120 miles of driving. While I'm not absolutely sure, I'm optimistic that it fixed my P0456 CEL problem.

Because the links to Ryan's pictures no longer worked, I took some photos while I worked and used his write up as the basis for the instructions in the attached pdf.

 

I'm having the codes as well and with the Foxwell reader it's showing that the charcoal canister vent solenoid was stuck. I removed it from the charcoal canister and cleaned it. Then using the tool in the reader manually activated it and could hear a slight thump so I thought it was actuating however I'm still getting codes and having an issue restarting the car after filling up with gas. Next step I suppose is to replace the charcoal canister vent valve solenoid. Any other ideas?

 

The charcoal canisters have an approximate 10-12 year lifespan. The barrier that holds the pellets in can break down and release pellets into the mechanicals & fuel system if left unchecked.

If it’s an option, best to replace the canister to prevent it from becoming a disaster.

The charcoal canisters are essentially a glorified fish tank filter that uses similar spongy media to retain the pellets. When the media goes, pellets invade the fuel system and the pump. Not a fun job.

 

Any chance anyone knows the size of the feedback hose, the hose in a U from top to bottom? I haven't looked or removed everything to check for a leak from the connector, but curious what size that hose would be if that just rotted out. C320 coupe 2003