FUEL mixture is the place to start!! This car should get 12-15 mpg.
ALSO when was the last time that you had the valves adjusted?? Supposed to be done EVERY 10K miles!
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)