i have a 2003 C230K and my fuel gauge isn't working. it's on E but i know i have half a tank left. Can anyone suggest what to do.
it's been 3 days already
Keep your eye on the odometer and make sure that your tank is kept over half full, judging by your normal fuel consumption. Do you have a 'Range' display at the cluster?
Meanwhile get your codes read with an OBD2 reader. According to my files the tank level fault codes are these:
P0460 Fuel Level Sensor Circuit Malfunction
P0461 Fuel Level Sensor Circuit Range/Performance
P0462 Fuel Level Sensor Circuit Low Input
P0463 Fuel Level Sensor Circuit High Input
However, your C230K has a tank divided into 2 halves, each of which has a level sensor. I have no idea how you know which one has failed...
To reach them is no fun. To get access you must remove the rear seat & covers. Then unscrew a very large nut in the tank (special tool reqd here) before you can remove either sensor. Not a job for the faint-hearted!
Of course it might be a fault on your display. If they are plasma, there are stories of ribbon cable connector problems. Look up cluster faults in the archives using the 'search' facility ^^^.
Oh, and welcome to the forum. Use the UserCP ^^^ to include some details of your car and your location, as it sometimes helps.
And as MM says above - you have a forum just for your MB model.