gas gauge programming?
Thread Starter
Member
Joined: Jan 2008
Posts: 83
Likes: 8
2018 E63s, 2004 E55 AMG
gas gauge programming?
Hey guys, my instrument cluster was changed last week after the dealer found a fault with the gas gauge. Now It reads full and goes down to a half a tank as it should but it gets stuck there and won't read below half. And yes, the tank level has actually been below half, i've put 16 gal and 18 gal in so far so it should have been reading around 1/4. Does anyone know if there's something I can do to calibrate it or something? I'll be calling the dealer Monday but I'm hoping for easy fix, thanks
Thread Starter
Member
Joined: Jan 2008
Posts: 83
Likes: 8
2018 E63s, 2004 E55 AMG
Ya they changed the sender last October but the gauge worked fine after that and as far as I know when they were tracking down the broken gauge problem they never went into the tank. They just tested the sender/floats to see if they were giving a level signal, and they were. Do you know if one side/float does full to half and the other does half to empty? They did redo some "bad looking wiring" when they changed the drivers side sender so that makes me wonder. Thanks for the response by the way.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 1,212
Likes: 5
From: Chicago
03 E55 AMG, 06 Harley Road King Custom 06 Ram 2500 Cummins, 97 Firebird Race Car, 88 Cutlass Supreme
Take it back they need to program it or someone put the sending unit assembly in cockeyed and its hanging up on baffling inside the tank. Possibly just a bad sender as well. All of these should be covered since they worked on all of it recently though so take it back and tell em to call you when they fix it.
Member
Joined: Jan 2012
Posts: 136
Likes: 1
From: Toronto
2003 E55
Ya they changed the sender last October but the gauge worked fine after that and as far as I know when they were tracking down the broken gauge problem they never went into the tank. They just tested the sender/floats to see if they were giving a level signal, and they were. Do you know if one side/float does full to half and the other does half to empty? They did redo some "bad looking wiring" when they changed the drivers side sender so that makes me wonder. Thanks for the response by the way.
What was your initial problem before the dealer put a cluster in? Was the gauge completely dead which caused them to put a cluster in AND repair "bad looking wiring" along the way?
BBBSS is right, the easiest way is to take it back to them and have them check their work over.
Thread Starter
Member
Joined: Jan 2008
Posts: 83
Likes: 8
2018 E63s, 2004 E55 AMG
The initial problem was just a failed gas gauge. I watched it go from full right down to zero one day in about 2 seconds. They figured out it was a fault in the cluster, tried to get it repaired but it was too far damaged, and had to install a new one. They repaired the wiring late 2011 when they swapped out the leaking drivers side fuel sender and the gauge worked for three months after that. I'm calling the dealer now, thanks for the help.
Thread Starter
Member
Joined: Jan 2008
Posts: 83
Likes: 8
2018 E63s, 2004 E55 AMG
Just an update to hopefully help someone in the future. The gauge is working now. The dealer removed the right side sender/fuel pump, moved the float around and the gauge went down to what it should have been. They weren't sure what the problem was but I'm thinking maybe the float was seized or stuck on the side of the tank. I talked to the tech and he explained to me that the left side of the tank empties first and so the left float reads full to half and the right side reads half to empty.
