2016 c450 amg fuel gauge issue
Thread Starter
Junior Member
Joined: Jun 2021
Posts: 23
Likes: 5
2006 Cls55 amg
2016 c450 amg fuel gauge issue
Hey guys,
Haven’t gotten a straight answer , apologies if this is available via search. I’ve been searching and only come up with a fuel sending unit being the possible culprit.
issue - fuel gauge shows full, empty and anything but the correct reading. I filled up today , the gauge still shows as fully empty.
any suggestions ? Possibly the fuel sending unit?
thanks kindly
Haven’t gotten a straight answer , apologies if this is available via search. I’ve been searching and only come up with a fuel sending unit being the possible culprit.
issue - fuel gauge shows full, empty and anything but the correct reading. I filled up today , the gauge still shows as fully empty.
any suggestions ? Possibly the fuel sending unit?
thanks kindly
Last edited by Cls55beast; Feb 7, 2023 at 08:50 PM.
Thread Starter
Junior Member
Joined: Jun 2021
Posts: 23
Likes: 5
2006 Cls55 amg
Hi,
Don’t apologize, I appreciate the help.
The fuel gauge is inaccurate when filling up, and shows random readings.
Today I filled up, the fuel gauge shows as empty. It’s been acting up for a while.
it’s not reading the correct amount of fuel, so I’m going based on mileage driven
Don’t apologize, I appreciate the help.
The fuel gauge is inaccurate when filling up, and shows random readings.
Today I filled up, the fuel gauge shows as empty. It’s been acting up for a while.
it’s not reading the correct amount of fuel, so I’m going based on mileage driven
Last edited by Cls55beast; Feb 7, 2023 at 09:41 PM.
Senior Member
Joined: Mar 2018
Posts: 323
Likes: 103
From: Central Florida
'15 C400 and '15 ML350
There are two level sensors in-tank that the ECU uses to determine fuel level. One or both of these sounds defective in your case.
I do believe both sensors show their reading if you go into the maintenance menu (like for oil change reset). Should show fuel sens 1 at say 24.6% and sens 2 at 26.8% because the car maybe not level, but they should be close when on flat ground.
My guess is yours will show 96% on one and 0% on the other (or maybe negative)and the ECU doesnt know what to do with that info.
I do believe both sensors show their reading if you go into the maintenance menu (like for oil change reset). Should show fuel sens 1 at say 24.6% and sens 2 at 26.8% because the car maybe not level, but they should be close when on flat ground.
My guess is yours will show 96% on one and 0% on the other (or maybe negative)and the ECU doesnt know what to do with that info.
