1995 S500 check engine light on.


Asked by Dec 14, 2014 at 12:19 AM about the 1995 Mercedes-Benz S-Class S 500

Question type: Maintenance & Repair

Sometimes the engine runs rough. Not all the time.

6 Answers


Check for vacuum leaks. Make sure that all of the spark plug wires are attached. Be sure that the air filter and all of the hoses are on tight. It's probably something like that. To clear the CEL. Disconnect the battery for about a half hour.

4 of 4 people found this helpful.

I would get a code reader and scan to see what code tripped the check engine light, repair and then reset the CEL light. Whatever tripped the light is probly connected to the engine running rough. Also if what to check the codes for free your local parts store should be able to do this for you. I would not advise disconneting the battery since it might cause you to lose the security code for your radio and may affect other electronic functions.

3 of 3 people found this helpful.

if you don't have access to an analyzer and you've done all of the above and the light still comes back, check your coils, change wires, the spark plugs and the fuel filter, I suggest to clean your fuel injectors. Getting the codes will make your life easier.

2 of 2 people found this helpful.

Thank you all for your help. I took my car to a Meecedes specialist, not a dealer. They found 3 codes: throttle body, air mass meter and air injection faulty code. They check the air pump, it's working. They can't find the exact problem and have to charge me more for further test. Your help is very appreciated. Kals


good luck


Replace the Mass Air Sensor

Your Answer


Looking for a Used S-Class in your area?

CarGurus has 7,287 nationwide S-Class listings starting at $1,980.


Mercedes-Benz S-Class Experts

  • #1
    Tom Demyan
  • #2
    Michael Kane
  • #3
View All

Related Models For Sale

Used Mercedes-Benz E-Class
440 Great Deals out of 20,659 listings starting at $1,999
Used BMW 7 Series
124 Great Deals out of 5,022 listings starting at $2,699
Used Mercedes-Benz C-Class
584 Great Deals out of 25,555 listings starting at $1,950
Used Mercedes-Benz SL-Class
53 Great Deals out of 3,211 listings starting at $4,930
Used Land Rover Range Rover
80 Great Deals out of 4,707 listings starting at $2,850
Used BMW 5 Series
401 Great Deals out of 16,252 listings starting at $1,650
Used Chevrolet Corvette
86 Great Deals out of 15,794 listings starting at $4,500

Used Cars For Sale

2018 Mercedes-Benz S-Class For Sale
2,200 listings starting at $90,895
2017 Mercedes-Benz S-Class For Sale
6 Great Deals out of 302 listings starting at $69,820
2016 Mercedes-Benz S-Class For Sale
11 Great Deals out of 244 listings starting at $43,730
2015 Mercedes-Benz S-Class For Sale
44 Great Deals out of 1,135 listings starting at $39,995
2014 Mercedes-Benz S-Class For Sale
342 listings starting at $34,275

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.