Not picking up speed

Asked by Dec 27, 2015 at 02:13 PM about the 2012 Mercedes-Benz C-Class

Question type: Maintenance & Repair

Hi all I have a Mercedes C class 2012
(C180) it seems the car doesn't move as
fast as it did and sometimes struggles to
hit any type of speed for example I Have to
put my foot down to get over 30 mph and
sometimes I am at 4 revs doing so instead
of the usual 2/3

When I do Rev so hard I am worried I will
blow it because it is going up to almost 5
but my speed is 40 mph I am worried I am
not sure how to check this without going to
a rip off mechanic.. I am tempted to buy an
air filter but not sure

Can anyone help?

5 Answers


Try some simple maintenance things first. Check air and replace if necessary clean throttle with throttle body cleaner replace fuel filter if have not done so in a while add fuel injector cleaner to gas tank then take out on road and hit the passing gear a few times this will clear out any gum and carbon build up in system.

1 of 1 people found this helpful.

First off is your C class still under warranty? if so take it to the dealer, if not a good indepent mercedes mechanic would be a good choice. This there a check engine light?


If your car goes into limp mode which it sounds like it has then you will need to get the codes read and find out what is causing the issue.


It is possible the mass air flow sensor is bad or needs cleaning, as this has been the cause of others with the same issue.

1 of 1 people found this helpful.

my C200 W204 2007 KOMPRESSOR doesnt pick up speed on pull off and has a bad idle sound.It is struggling to reverse on a step place.

Your Answer


Looking for a Used C-Class in your area?

CarGurus has 1,732 nationwide C-Class listings starting at $3,988.

Postal Code:

Mercedes-Benz C-Class Experts

  • #1
    Lorne Grandison
  • #2
  • #3
View All

Related Models For Sale

Used Mercedes-Benz E-Class
46 Great Deals out of 671 listings starting at $4,500
Used BMW 3 Series
133 Great Deals out of 2,112 listings starting at $2,495
Used Mercedes-Benz S-Class
5 Great Deals out of 157 listings starting at $6,777
Used Mercedes-Benz CLS-Class
14 Great Deals out of 144 listings starting at $9,990
Used BMW 5 Series
28 Great Deals out of 619 listings starting at $3,695
Used Audi A4
34 Great Deals out of 654 listings starting at $2,900
Used Mercedes-Benz CL-Class
18 listings starting at $17,888
Used BMW M3
72 listings starting at $17,950
Used Ford Mustang
1,034 listings starting at $3,900
Used Honda Accord
59 Great Deals out of 1,262 listings starting at $1,215
Used Chevrolet Camaro
1,075 listings starting at $12,995
Used Mercedes-Benz M-Class
35 Great Deals out of 560 listings starting at $6,995
Used Dodge Charger
60 Great Deals out of 776 listings starting at $3,400

Used Cars For Sale

2017 Mercedes-Benz C-Class For Sale
13 Great Deals out of 119 listings starting at $39,991
2016 Mercedes-Benz C-Class For Sale
10 Great Deals out of 78 listings starting at $31,488
2015 Mercedes-Benz C-Class For Sale
62 Great Deals out of 443 listings starting at $27,450
2014 Mercedes-Benz C-Class For Sale
124 listings starting at $18,995
2013 Mercedes-Benz C-Class For Sale
22 Great Deals out of 162 listings starting at $15,990

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.