VERY common on the W202 chassis! The needle is glued to the peg that it rests on. WE remove the complete instrument cluster assembly & clean the needles & pegs off with alcohol & a q-tip.
Replace the inst cluster blubs while you are there.
Try tapping on the dash pad above the cluster & see if the gauge starts working.
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)