how to fix an rpm problem

Nikki Zukoski

Asked by Nov 05, 2014 at 08:50 PM about the 1990 Mercedes-Benz 300-Class 4 Dr 300E Sedan

Question type: Maintenance & Repair

looking how to fix an RPM problem in the 1990 Mercedes Benz 300E.

1 Answer

Michael Kane

Try cleaning the Maf sensor the throttle body and try running Seafoam thru the system. Aslo maybe check the idle air control valve.

Your Answer

Add photo

Related Questions

  • 1990 mercedes 300E high idle problem 2 answers

    my 1990 mercedes 300e starts and idles at about 900-1000 rpm but when i drive it the idle at at stop increases to 1500 to 2500 rpm any answers?

    1990 Mercedes-Benz 300-Class 4 Dr 300E Sedan


    Maintenance & Repair

  • Starting Problem 9 answers

    Starting Problem, 1991 300E Mercedes, Westborough, MA 1st flare-up – car initially starts and operates with no problem. 2 miles down the road, suddenly runs very rough sputters & bucks and stalls ou...

    1991 Mercedes-Benz 300-Class 4 Dr 300E Sedan


    Maintenance & Repair

  • why does my idle go up and down between 7K and 9K and never stablizes 1 answer

    1990 Mbenz 300 E four door sedan with M103 engine has problem with idle. It goes in waves or rocks between 5K and 10K rpms then it runs fine in all other driving situations; what could be problem?

    1990 Mercedes-Benz 300-Class 4 Dr 300E Sedan


    Maintenance & Repair

  • I have a 91 Mercedes and no idea what is going on HELP! 8 answers

    I have a 91 Mercedes 300te 4matic. and has been running amazingly till recently and when it gets heated up the RPMs drop and wont go over about 5Miles I have no idea on what else to try I replaced th...

    1991 Mercedes-Benz 300-Class 4 Dr 300TE 4MATIC AWD Wagon


    Maintenance & Repair

  • Esp problem 2 answers

    Hello...I got Mercedes c 240 model 2001 I am having a pig problem when I get esp light the the tryptronic option is disabled and more the automatic Geer doesn't shift and the rpm goes to the max li...

    Mercedes-Benz 240


    Maintenance & Repair

Search Mercedes-Benz 300-Class Questions

Mercedes-Benz 300-Class Experts

#1 James Ramond
James Ramond
Reputation 200
#1 Tom Demyan
Tom Demyan
Reputation 200
#3 joemom
Reputation 170
View All

Related Models For Sale

Used BMW 3 Series"
1,684 Great Deals out of 39,943 listings starting at $1,500
Used BMW 5 Series"
695 Great Deals out of 19,107 listings starting at $1,500
Used Mercedes-Benz SL-Class"
128 Great Deals out of 3,668 listings starting at $1,500