RE: Fuel gauge does not work
this is a very common fault on Mercs. Both my C class (2001 model) and CLK (2000 model) had to have new fuel guage senders fitted. I took the cars to a Mercedes garage - should not be too expensive to fix or at least have the senders tested by a technician. Take it to a specialist - look after your Mercky and it will look after you!
W208 CLK Cab; RR Sport HSE; Kia Sorento; Yamaha FSZ Fazer