Why does my car do this ? Gas Gauge Float Issue
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MBWorld Fanatic!
Joined: Dec 2007
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From: PHX/PIE/OMA ---> Yes, all three
E55 then E63, now back to an E55
Why does my car do this ? Gas Gauge Float Issue
Every time I park on a slight incline, with engine elevated and rear of car sloping downhill - even just a slight bit - the next time I start the vehicle AT LEAST 1/5 or so tank of gas appears to just be gone. On extreme inclines I have seen a HALF tank less directly upon start.
NO fluids are leaking.
Now if I get on the interstate, no city driving, and baby the car for 5-10 miles it usually goes back up to CLOSE to where it was prior to turning off.
Is this normal, or a problem with the gas tank float, or something else ??
Thanks
NO fluids are leaking.
Now if I get on the interstate, no city driving, and baby the car for 5-10 miles it usually goes back up to CLOSE to where it was prior to turning off.
Is this normal, or a problem with the gas tank float, or something else ??
Thanks
Member
Joined: May 2010
Posts: 211
Likes: 1
From: ATL
Gone but not Forgotten 2006 E55 Renntech
What you describe sounds fairly normal.
I had an issue whereby the gauge would read half full even though I knew I could not have had more than 1/4 of a tank. The issue occurred after I had the fuel tank and sending units replaced. Took the dealer two attempts but they eventually fixed the issue by adjusting the sending unit float (at least that's what the paperwork says).
I had an issue whereby the gauge would read half full even though I knew I could not have had more than 1/4 of a tank. The issue occurred after I had the fuel tank and sending units replaced. Took the dealer two attempts but they eventually fixed the issue by adjusting the sending unit float (at least that's what the paperwork says).
MBWorld Fanatic!
Joined: Oct 2011
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From: Chicago
03 E55 AMG, 06 Harley Road King Custom 06 Ram 2500 Cummins, 97 Firebird Race Car, 88 Cutlass Supreme
I'm gonna guess its just the shape of the tank and where the float is located inside the tank.
