C450 fueling issue.

Oct 11, 2016 | 12:22 PM

S500Sport

Thread Starter

Member

Joined: Dec 2006

Posts: 237

Likes: 7

From: Brooklyn

2019 C43 Sedan

C450 fueling issue.

Hi.

Need some assistance..

Lately when I've been fueling up I get pauses from the fueling hose.. so I fuel the car and then the pump stops.. (mind you the tank is not full).. I start fueling again and it stops.. this continues on and on..

I heard that this is because there is air in the tank? How do I rectify?

Thanks.

Oct 11, 2016 | 12:27 PM

cenzo86

Super Member

Joined: Nov 2015

Posts: 721

Likes: 74

From: NYC

2016 c450 / 2016 VW Jetta 1.8t / 2006 Wrangler X

I have the same problem every few fill ups. It happens when I'm on E and even a half tank. My dealer couldn't duplicate the error. Mwop mwop.

Oct 11, 2016 | 12:32 PM

S500Sport

Thread Starter

Member

Joined: Dec 2006

Posts: 237

Likes: 7

From: Brooklyn

2019 C43 Sedan

Quote:

Originally Posted by cenzo86

I have the same problem every few fill ups. It happens when I'm on E and even a half tank. My dealer couldn't duplicate the error. Mwop mwop.

Oct 11, 2016 | 12:37 PM

MASSC450

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Joined: Mar 2015

Posts: 1,581

Likes: 114

From: Mass

2026 GLE 53 Coupe

Never had this problem filling up my C450...then again I never squeeze the fueling level fully or try to jamb the fill cap in the handle like the lazy people do.

Oct 11, 2016 | 03:13 PM

alexasa

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This has happened to me in my last few cars.

I just remove the nozzle and re-insert. It's almost like you have to find the g-spot at times.

Oct 11, 2016 | 05:12 PM

GerritKw

Senior Member

Joined: Jan 2016

Posts: 276

Likes: 21

C350e

I have it sometimes too.
Think it's also related to the sensitivity of the fuel grip. But usually taking it out or wiggle it a bit helps.

Oct 11, 2016 | 06:56 PM

Xtrema

Senior Member

Joined: Oct 2007

Posts: 292

Likes: 20

2020 GLC43

I think I do get that when I get gas from randoms on long trips and usually move it out a bit and not inserting it as far seems to work.

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Oct 12, 2016 | 10:02 AM

MJ83

Junior Member

Joined: Jul 2016

Posts: 23

Likes: 2

From: Columbus, OH

2016 C450

Try backing out the nozzle a bit, that usually works for me.

Oct 13, 2016 | 01:13 PM

#10

tivoboy

Super Member

Joined: Aug 2003

Posts: 597

Likes: 7

From: San Jose

2016 C450 AMG, 2009 C300, 2001 C320 2001 CLK430, 95 E500

I think this is more about back pressure in the tank, or nozzle than another else. It changes for me with the weather. Usually a pull out slightly (don't read into that one!) and re-insert will get it moving fine again.

Oct 17, 2016 | 08:21 PM

#11

Trancebolt

Senior Member

Joined: Apr 2014

Posts: 268

Likes: 8

From: California

w212 E350 Bluetec & Mk7 GTI Sport

My 2015 C300 had its fuel tank replaced 0_0! It was filling up, but it would kick the fuel line at half a tank, and never went above that. Very strange.

Oct 18, 2016 | 09:43 AM

#12

StanNH

MBWorld Fanatic!

Joined: Sep 2014

Posts: 1,822

Likes: 33

From: Whitefield, NH

2015 C300 Sport: Palladium, Premium, Multimedia, Leather, BLIS

I've had this problem on and off with both of my C300's. At one point I had the vent valve replaced. That fixed it for a while, but then the issue returned. Recently, I complained about it to my dealer and they replaced another part of the venting system. Since then it has been fine, and I can fuel the car with no problems at all.

The dealers can check on this, and will replace parts if needed under warranty.