p0455 CEL :( Oh man...someone please help.
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
p0455 CEL :( Oh man...someone please help.
Hi everyone, Kimo here.
I finally finished doing the coilovers on my car the day before yesterday and I love the look. Though, just yesterday driving with my wife she said the CEL came on, so I took it to autozone and OReilly's, they both said P0455 which is gas cap. I took a look at the gas cap and it seemed ok...though I don't know how many times it's suppose to click to lock on, but mine only clicks once. 2008 C300 Luxury Sedan model. I've done quite of bit of googling, but I can't find much on the C300, but tons on C63. I also took a look at the Purge Valve and it seems ok...though I don't know what im looking at, or what to look for. My friend suggested to give it a few taps with something, as something maybe lodged in or stuck. Gas cap seemed fine, muffler rattled a tiny bit at start up before the drive when the code came on. Car runs perfectly fine, no rough idle...accelerates fine. I don't get it...I don't want to pay alot of money at Mercedes if its something easy taht I can do. Someone please help...thank you.
I finally finished doing the coilovers on my car the day before yesterday and I love the look. Though, just yesterday driving with my wife she said the CEL came on, so I took it to autozone and OReilly's, they both said P0455 which is gas cap. I took a look at the gas cap and it seemed ok...though I don't know how many times it's suppose to click to lock on, but mine only clicks once. 2008 C300 Luxury Sedan model. I've done quite of bit of googling, but I can't find much on the C300, but tons on C63. I also took a look at the Purge Valve and it seems ok...though I don't know what im looking at, or what to look for. My friend suggested to give it a few taps with something, as something maybe lodged in or stuck. Gas cap seemed fine, muffler rattled a tiny bit at start up before the drive when the code came on. Car runs perfectly fine, no rough idle...accelerates fine. I don't get it...I don't want to pay alot of money at Mercedes if its something easy taht I can do. Someone please help...thank you.
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
So i checked under the hood, the oil dip stick was sticking out a good ways, wasn't properly on all the way. The check engine light is still on, but could this be the reason it's throwing a gas cap code? I wouldn't think the oil dipstick would have anything to do with the gas cap, or emission/evap line system would it? Im not an intelligent mechanic, so any input would be greatly appreciated. I jacked the car up, no leaks, the coilovers were installed and tightened down nicely, everything is driving fine with no creaks...could the coilover install be related to this? Or is it just bad timing with the CEL?
Please help someone. Thank you!
Please help someone. Thank you!
Senior Member
Joined: Mar 2014
Posts: 402
Likes: 6
C350
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
Hi RulesLawyer, thank you for your response. I inspected for the holes and leaks, but I do not see any gas coming out anywhere. No tears or holes from what I can see under the car. Would the engine oil dipstick be part of the leak? As I discovered it wasn't all the way secured in. It was sticking out about 2 + inches when I opened the hood today. I set it in secure, but the CEL is still on. Maybe it will take a few days to reset itself, or maybe I might have to take it to the dealership to get it reset?
- Thank you
- Thank you
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
EECS leaks can be a pain to find if it is not just a leaking gas cap. It can be anything from a cracked filler pipe to a leaking joint to a leaking carbon canister or troublesome purge valve.
If the gas cap seal is OK have the system smoke tested.
If the gas cap seal is OK have the system smoke tested.
Trending Topics
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
I bought a obd2 scanner and it's says o2 snr and o2 htr as well as misfire and Evan leak. Wow! So I guess il take it to mercedes of Austin tomorrow. I hope this will get fixed, Glynn m ruck, your reply is scary. I hope they find out what's wrong, and that my aftermarket ford esp covers it. I've taken it in for a bad key fob and ford esp covered it, I hope they cover it with this too. Seeing as I have a 100 deductible and bumper to bumper warranty coverage with them. Wish my luck please guy! Thank you.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Don't be scared. None of the EECS components are expensive. Finding the leak can be labour wise.
Last edited by Glyn M Ruck; Apr 7, 2014 at 03:38 AM.
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
Thank you glyn that helps my mind at ease! I'm going to go into that dealership confidently. Il be sure to report what's been done to get your guys feedback on if I should expect more problems in the future.
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
Turns out when I installed the coilovers, one of the struts took off a hose off the gas tank. Now I need a new gas tank, which the warranty won't cover as it's my fault.
A word of advice for everyone installing coilovers...watch the hoses! They aren't replaceable, you will need a whole new gas tank.
2632.82 quoted to me for parts and labor.
Im so disappointed in myself right now. Won't be done till Thursday at the latest...
A word of advice for everyone installing coilovers...watch the hoses! They aren't replaceable, you will need a whole new gas tank.
2632.82 quoted to me for parts and labor.
Im so disappointed in myself right now. Won't be done till Thursday at the latest...
Senior Member
Joined: Mar 2014
Posts: 402
Likes: 6
C350
Turns out when I installed the coilovers, one of the struts took off a hose off the gas tank. Now I need a new gas tank, which the warranty won't cover as it's my fault.
A word of advice for everyone installing coilovers...watch the hoses! They aren't replaceable, you will need a whole new gas tank.
2632.82 quoted to me for parts and labor.
Im so disappointed in myself right now. Won't be done till Thursday at the latest...
A word of advice for everyone installing coilovers...watch the hoses! They aren't replaceable, you will need a whole new gas tank.
2632.82 quoted to me for parts and labor.
Im so disappointed in myself right now. Won't be done till Thursday at the latest...
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
Rules Lawyer - This has happened to another member here on this forum in the C63 section. He glued his hose back onto the fuel tank, as it's designed to be part of the fuel tank and not removable or replaceable. The design is crappy I agree with him. The area I live, I really do not trust indie shops. The Mercedes dealership in Austin has always been good to me, upfront and honest. I have no reason not to trust them, they even sent me a pick of the screw up.
NOTE TO Everyone, make sure when you install the struts, the hose is NOT in the way. Such a simple mistake on my behalf cost me 2632 in parts and labor.
Glyn M Ruck - Thank you for your kind words, and for all of the suggestions. It hurts to know my simple screw up cost me so much money, but there's nothing much I can do at this point but to take it and learn. No sense in crying over spoiled milk.
NOTE TO Everyone, make sure when you install the struts, the hose is NOT in the way. Such a simple mistake on my behalf cost me 2632 in parts and labor.
Glyn M Ruck - Thank you for your kind words, and for all of the suggestions. It hurts to know my simple screw up cost me so much money, but there's nothing much I can do at this point but to take it and learn. No sense in crying over spoiled milk.
Thread Starter
Member
Joined: Apr 2013
Posts: 129
Likes: 3
From: Fort Hood, TX
C300 W204 Luxury
Ok Glynn M Ruck, and Rules Laywer, update!
Got Sadie back today, and everything looks good and drives good so far. They replaced the gas tank, I can tell when i poured gas in, they only filled it half way...and under the gas cap there is some sort of marker paint on one side I guess for directional installation purposes. By taking a look at the picture in my previous post, anyone know what that hose goes too?
My KW V1's don't seem they have settled yet, regardless of them being on for a week. I hear sometimes it takes 2 weeks for springs to fully settle. I will post pics of her once everything is done. Thx guys...expensive learning lesson.
Got Sadie back today, and everything looks good and drives good so far. They replaced the gas tank, I can tell when i poured gas in, they only filled it half way...and under the gas cap there is some sort of marker paint on one side I guess for directional installation purposes. By taking a look at the picture in my previous post, anyone know what that hose goes too?
My KW V1's don't seem they have settled yet, regardless of them being on for a week. I hear sometimes it takes 2 weeks for springs to fully settle. I will post pics of her once everything is done. Thx guys...expensive learning lesson.
Senior Member
Joined: Mar 2014
Posts: 402
Likes: 6
C350
Rules Lawyer - This has happened to another member here on this forum in the C63 section. He glued his hose back onto the fuel tank, as it's designed to be part of the fuel tank and not removable or replaceable. The design is crappy I agree with him. The area I live, I really do not trust indie shops. The Mercedes dealership in Austin has always been good to me, upfront and honest. I have no reason not to trust them, they even sent me a pick of the screw up.
Glad you're back up and running.
Newbie
Joined: Apr 2014
Posts: 1
Likes: 0
2000 Mercedes E430 Sedan
P0455 code on 2000 E430
If I am getting a P0455 code on my MB, has the car gone into Limp mode because of this fault? I have a cheap aftermarket gas cap I put on several days ago after loosing the original. This morning the car banged in reverse would not upshift to 3rd gear. I have to turn the ignition off to put the lever into park. The indicator for Drive is pixeled out. Can anyone offer assistance/advice?
