P0455 - MBWorld.org Forums

Jul 8, 2022 | 03:23 AM

Prince Somorin

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Joined: Dec 2021

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From: Ibadan, Nigeria

2009 GL450

P0455

Whilst tootling along in traffic yesterday an alert came up saying something about fuel filler door open (it wasn't) and check engine light came on. When I got home I read the code to be P0455 (Evaporative Emission System Leak Detected - Large Leak).

I have cleared the code but haven't driven the car since to find out if it'll come back. I faintly remember the fuel filler door warning coming on back in Los Angeles.

Will an ordinary fuel filler door throw a code?

Thanks.

Jul 8, 2022 | 02:55 PM

Max Blast

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NGL450 w/EORP, S550

Quote:

Originally Posted by Prince Somorin

Yep, in all cars. It’s not the door it’s the cap letting out back pressure either by being not fastened or having a faulty seal.

Jul 9, 2022 | 06:01 AM

Prince Somorin

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Joined: Dec 2021

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From: Ibadan, Nigeria

2009 GL450

Okay, thank you Sir.

Jul 10, 2022 | 09:32 AM

eric_in_sd

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From: Emmett, ID, USA

2007 GL450

The evap solenoid can also leak, causing a 0455. Apparently this can be caused by topping up fuel, as the fuel leaks into the solenoid and degrades the seals.

Jul 11, 2022 | 11:47 AM

Prince Somorin

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Member

Joined: Dec 2021

Posts: 114

Likes: 21

From: Ibadan, Nigeria

2009 GL450

Quote:

Originally Posted by eric_in_sd

The evap solenoid can also leak, causing a 0455. Apparently this can be caused by topping up fuel, as the fuel leaks into the solenoid and degrades the seals.

Please where is this located on the 09 GL450? Is it under the right rear wheel liner or in the engine bay?

Thanks.