Code P0455
MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,766
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From: Emmett, ID, USA
2007 GL450
If you are not handy, you can buy a replacement valve. They aren't very expensive.
If you are not handy, and are broke, you can put tape over the CEL.
This is why you should never top off. The liquid gasoline washes away the grease and makes the rubber seals stop working.
MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,766
Likes: 632
From: Emmett, ID, USA
2007 GL450
Get yourself a bluetooth OBD adapter. Then you can install Torque on your phone, and reset those codes.
I was on a road trip and found it annoying enough that the CEL would come on (cat converter errors) and figured out how to reset them while I'm driving.
If you had a problem with the gas cap, you probably would see it in the condition of the o-ring. Odds are you need to service the evap control valve as I described earlier.
I was on a road trip and found it annoying enough that the CEL would come on (cat converter errors) and figured out how to reset them while I'm driving.
If you had a problem with the gas cap, you probably would see it in the condition of the o-ring. Odds are you need to service the evap control valve as I described earlier.
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Joined: Aug 2003
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From: In my garage
E55, GLS450, GL63, GLE350
Could be what is wrong with mine. When I refill, it won't start until it sits for some time. Wouldn't happen to have a part number? Do you access via the right wheel liner?
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Gle 350 2016
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Joined: Sep 2005
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From: Albuquerque
'10 CL550, '12 GL550
Just FYI … you can google Mercedes P0455 (or any other code you encounter) and get real informationhttps://search.yahoo.com/search?p=me...+p0455&fr=ipad
MBWorld Fanatic!
Joined: Aug 2003
Posts: 8,882
Likes: 1,214
From: In my garage
E55, GLS450, GL63, GLE350
Did you find the root cause? I seem to have the same issue, it will go away for a while and then come back up after the fuel tank goes to around 75% I have already replaced the fuel cap, purge valve and the whole vapor canister as the smoke test showed a leak on its valve but the check engine is still there times to times.
MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,766
Likes: 632
From: Emmett, ID, USA
2007 GL450
Good thing you checked. If you had rolled over, the gas tank would have emptied all over the chassis and, if the little lid had not been sealed, into the passenger compartment.
