There is a combination relay in the rear section of the fuse box that controls blinkers & hazzard warning lamps, other than a stuck switch THAT relay is the most common problem.
Should have MB number 140-820-26-26 on the outer cover.
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)