My 1994 420 S Merecedes changes gear but when I drive it it doesn't change to another gear

Asked by Sep 06, 2013 at 09:09 PM about the 1994 Mercedes-Benz S-Class S 420

Question type: Maintenance & Repair

5 Answers

25,425

Have you checked the transmission fluid level? it could be low.

1 of 1 people found this helpful.

We put fluid in it. Any other suggestions?

25,425

Someone on the Mercedes forum said they had the same issue, they cleaned the Mass Airflow Sensor and the problem went away. Im not shure if this will work for your car but it could be a cheap resolution if it fixes it.

I had a similar problem on a 1994 C280. I got a mechanic to clean the transmission lines under the car with brake part cleaner and the car drove like brand new . When I bought the car the transmission fluid was changed already but shifting crazy. Give it a shot !

mine was acting up the same way and was putting also. i had to clean the wheel sensors located by the hub of each wheel. its for anti skid stuff and when it gets dirty from brake dust and years of not being cleaned the sensor cant read the magnetic pulses the hub is sending by rotating. it then thinks the wheels are not spinning the same and wont allow you to give it gas let alone switch gears to go faster. also, i had the gas evap tube which is black plastic/rubber melt through. it goes into the air intake and has like 3 pieces to it. about a dime/10cents in diameter? nickel maybe? i couldnt get the strap off so i peeled as much as i could off ( where it connects to air intake. backside. you will see a hole when you take off the Mass airflow sensor.) and stuffed a slightly smaller tube in there. I used a small radiator tube so it could withstand the heat better. s420 1995

Your Answer

S-Class

Looking for a Used S-Class in your area?

CarGurus has 5,934 nationwide S-Class listings starting at $2,000.

ZIP:

Mercedes-Benz S-Class Experts

  • #1
    Tom Demyan
    Reputation
    750
  • #2
    Michael Kane
    Reputation
    560
  • #3
    lightGear
    Reputation
    430
View All

Related Models For Sale

Used Mercedes-Benz E-Class
472 Great Deals out of 19,772 listings starting at $1,500
Used BMW 7 Series
170 Great Deals out of 6,027 listings starting at $2,500
Used Mercedes-Benz C-Class
605 Great Deals out of 23,492 listings starting at $1,995
Used Mercedes-Benz SL-Class
49 Great Deals out of 2,722 listings starting at $3,950
Used Land Rover Range Rover
118 Great Deals out of 5,002 listings starting at $3,482
Used BMW 5 Series
458 Great Deals out of 16,577 listings starting at $2,000

Used Cars For Sale

2018 Mercedes-Benz S-Class For Sale
6 listings starting at $105,994
2017 Mercedes-Benz S-Class For Sale
3 Great Deals out of 1,244 listings starting at $85,881
2016 Mercedes-Benz S-Class For Sale
147 listings starting at $59,900
2015 Mercedes-Benz S-Class For Sale
40 Great Deals out of 842 listings starting at $41,980
2014 Mercedes-Benz S-Class For Sale
16 Great Deals out of 456 listings starting at $44,995

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.