Will also run at higher rpm if air filter cover is taken off.
Mercedes-Benz Q&AAsk Your Question
1991 Mercedes-Benz 420SEL Question: My car will start but dies when I put it in drive and press on gas.
Answer #1your.mechanic November 19, 2012, 08:44Master
possibly broken air intake tube
Replytaurussho911, November 19, 2012, 11:39Rookie
Is there just one on the car I should look for? Where is it located and go to and from? I guess that would be the one that goes to the breather?
Answer #2Greg's Orange Auto (10940 Answers) , Orange, CA - (714) 361-9355globalhelper November 19, 2012, 12:54Master
have codes scanned by you mech it could be a mass air flow or other sensor related to air fuel mixture