83' 300d fuel gauge indicator bouncing - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 02-01-2006, 03:43 AM Thread Starter
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83' 300d fuel gauge indicator bouncing

my fuel gauge indicator keeps bouncing from full to empty, full to empty, I'm not sure what it is, maybee the fuel sender needs to be cleaned of some of the connection wires are loose or what.... If anybody's got any info on this, I'd really appreciate it.... Thanks[:)]
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post #2 of 5 (permalink) Old 02-01-2006, 06:06 PM
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RE: 83' 300d fuel gauge indicator bouncing

Post in the W123 forum there will be alot more members there to help you.
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post #3 of 5 (permalink) Old 02-03-2006, 12:46 AM Thread Starter
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RE: 83' 300d fuel gauge indicator bouncing

Thanks alot peter...
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post #4 of 5 (permalink) Old 02-04-2006, 04:09 PM
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RE: 83' 300d fuel gauge indicator bouncing

give this a try. remove the sender from under the first aid kit in the parcel shelf. you'll need a BIG socket. unscrew tiny nut at the bottom and carefully slide off the alu tube. you will probably find some black gunk around the base. if one of the three wires is broken, junk it, repair affects the resistance and screws it up. if you are able to clean the base, and all looks ok, clean the contacts accross the bottom for the low fuel indicator and climb in the car and plug the unit in. turn on ignition and invert the float, should read full on the gauge, slowly turn over and as the float moves down, the gauge should move too. when contact is made at the base your light for low fuel should illum. carefully clean your contacts if you are not getting the desired result. if that doesn't do it, send a reply and i'll pass along how to test your gauge.
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post #5 of 5 (permalink) Old 03-16-2013, 09:41 AM
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Quote:
Originally Posted by amrstar View Post
give this a try. remove the sender from under the first aid kit in the parcel shelf. you'll need a BIG socket. unscrew tiny nut at the bottom and carefully slide off the alu tube. you will probably find some black gunk around the base. if one of the three wires is broken, junk it, repair affects the resistance and screws it up. if you are able to clean the base, and all looks ok, clean the contacts accross the bottom for the low fuel indicator and climb in the car and plug the unit in. turn on ignition and invert the float, should read full on the gauge, slowly turn over and as the float moves down, the gauge should move too. when contact is made at the base your light for low fuel should illum. carefully clean your contacts if you are not getting the desired result. if that doesn't do it, send a reply and i'll pass along how to test your gauge.
Good info. I'm having the same problem with my 300TD
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