[BlackML550]

Out of the blue, my 2010 gas B180 (non-turbo) won't fill at the pump AND the fuel gauge has a mind of its own. When filling up, it takes 15 minutes at the lowest fill rate, and keeps clicking off. No check engine light or codes and the engine runs as intended. Car has 15k miles only.

The fuel gauge wanders through the dial like its searching for the right level. It moves dramatically on inclines as well as in general driving. Then it just moves to an "off" position as if the ignition is off.

Anyone had 1 or both issues together? Does anyone know/think the two are related or two issues and just a coincidence? Fuel filler problem looks like an EVAP issue but I'm seeking advice. Many thanks 👍

 

[DEVOURS]

Probably a "purge valve" problem.

Fuel Tank Filling Problem

I having issue with fuel pump keep shutting off as I was full. It took me 10minutes to fill up a full tank by slowly filling manually. Anyone has these issue before? Any ideas how to fix this issue? Please help. thanks Sent from my iPhone using Tapatalk

www.benzworld.org

Purge valve, what does it do?

Does anyone know what does a purge valve do? (part number a1694700193) I have a 2006 b150, I keep having banging sounds under the rear seats when I start the car and when I turn it off. The mechanics said it was a defective purge valve that keeps sucking the air out of the fuel tank making it...

www.benzworld.org

 

[BlackML550]

Thank you Devours. I've started at the engine and will work my way back. I've cleaned and tested the purge valve at the inlet manifold, and its working perfectly. Now to attack the purge solenoid valve at the cannister. Difficult without a hoist - these things sit so low, I didn't realise. l'll update this once I've done that.