P0455-Does it go away
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Junior Member
Joined: Apr 2021
Posts: 16
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2015 ML350
P0455-Does it go away
On Saturday I was driving around when I noticed my check engine light come on. I kept driving for a few miles then finally pulled into a parking lot to grab groceries. I had a hunch that it may be a lose fuel cap (It has happened multiple times in the past). I open the gas tank and the fuel cap was indeed lose, almost to a point where it was barley even attached. I tightened it up past 3 turns but the light stayed on.
On Sunday I went to AutoZone since they have those free code readers. It was in fact P0455.
I do not have an OBD code reader so I am wondering what is the best way to clear the code so the light goes away? Will AutoZone be able to delete it for me (I heard they no longer clear codes and only read them)
Will the light eventually go away once pressure builds up in the tank?
On Sunday I went to AutoZone since they have those free code readers. It was in fact P0455.
I do not have an OBD code reader so I am wondering what is the best way to clear the code so the light goes away? Will AutoZone be able to delete it for me (I heard they no longer clear codes and only read them)
Will the light eventually go away once pressure builds up in the tank?
MBWorld Fanatic!
Joined: May 2021
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Likes: 2,041
From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
On Saturday I was driving around when I noticed my check engine light come on. I kept driving for a few miles then finally pulled into a parking lot to grab groceries. I had a hunch that it may be a lose fuel cap (It has happened multiple times in the past). I open the gas tank and the fuel cap was indeed lose, almost to a point where it was barley even attached. I tightened it up past 3 turns but the light stayed on.
On Sunday I went to AutoZone since they have those free code readers. It was in fact P0455.
I do not have an OBD code reader so I am wondering what is the best way to clear the code so the light goes away? Will AutoZone be able to delete it for me (I heard they no longer clear codes and only read them)
Will the light eventually go away once pressure builds up in the tank?
On Sunday I went to AutoZone since they have those free code readers. It was in fact P0455.
I do not have an OBD code reader so I am wondering what is the best way to clear the code so the light goes away? Will AutoZone be able to delete it for me (I heard they no longer clear codes and only read them)
Will the light eventually go away once pressure builds up in the tank?
With a MB specific scanner, you can delete both states of the code: STORED, and/or CURRENT
It would be worth getting an MB-specific scanner. The current trend seems to be:
1 - Launch Creader Elite X431 Bidirectional, with cable, $160 on Amazon
2 - Autel AP200, $60, Bluetooth, initialize it for Benz only but unidirectional
3 - XEntry setup, this is the MB original software, but perhaps you are not interested on a more elaborate system
If you plan to keep the vehicle for long, it will trigger some code at some point, for example a misfire. You can pre-diagnose it, and save the headache of going to the dealer. The autozone scanner will give you only top level information, no MB details of the problem.
