You will need to remove the sending unit and clean it. here is a good DIY for the W124.

http://www.peachparts.com/shopforum/diesel-discussion/231269-diy-w-pix-w124-fuel-sender-disassembly-cleaning-testing.html

Just noticed you have a 300TD, that would be a little different than the sedan. Did you mean, Turbo Diesel, or Touring Diesel?


Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works