I have a 85 190E 2.3. Want to know how I can adjust the fuel-air mixture myself - everytime I get the car back from the shop, they set it too rich - fuel mileage is low. so I have to go back and get the mixture leaned out. What specific tool do I need? Is the mixture screw the one right in the middle of the air filter housing in the hole? Also, what damage can it do to my car if I let it run rich?
Thanks very much for all your help.