C230 2005 Fuel Filler Neck
Newbie
Joined: Jun 2016
Posts: 8
Likes: 2
2005 C230 Sport
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.
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.
MBWorld Fanatic!
Joined: Jul 2017
Posts: 1,005
Likes: 148
From: Richmond, VA Metro Area
2005 C230 Sport Sedan-6 Speed Manual
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,
Thanks,
MBWorld Fanatic!
Joined: Jul 2017
Posts: 1,005
Likes: 148
From: Richmond, VA Metro Area
2005 C230 Sport Sedan-6 Speed Manual
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.
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.
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Junior Member
Joined: Sep 2020
Posts: 50
Likes: 2
From: Ocean isle beach, NC
2003 SL500, 1997 SL500,1995 E320, 2000 BMW Z3, 1979 Ferrari GTB, 2000 MB C230K
Hello Everyone ;
Unfortunately I have the CEL recently with Code P0456 “ small Evaporation leak ". I’ve saw most of related threads , all seems to have the faulty filler neck due to many cases I’ve read with such problem.
I have changed the seal ring at the charcoal canister , although the old one was not damaged .now I'm suspecting the leak is in the filler neck , Really appreciate if anyone can give me the updated part number of the filler nick since some mentioned that old one have different Part # .
Appreciate your help .
Unfortunately I have the CEL recently with Code P0456 “ small Evaporation leak ". I’ve saw most of related threads , all seems to have the faulty filler neck due to many cases I’ve read with such problem.
I have changed the seal ring at the charcoal canister , although the old one was not damaged .now I'm suspecting the leak is in the filler neck , Really appreciate if anyone can give me the updated part number of the filler nick since some mentioned that old one have different Part # .
Appreciate your help .
Member
Joined: Jul 2024
Posts: 119
Likes: 12
From: SoCal
90 VW Corrado g60, 07 New Beetle Vert triple white & 09 Escalade ESV Plat LOL!
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.
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.
Junior Member
Joined: Dec 2023
Posts: 24
Likes: 0
From: Santa Teresa, NM
Mercedes C320 2003 W203 Coupe
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.
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.
