Rough idle

Asked by Nov 05, 2017 at 07:54 AM about the 2004 Mercedes-Benz C-Class

Question type: Maintenance & Repair

Hi there, when i had the car in park gear the revs
would jump up and down and the car would make
a funny noise. This happened when the engine was
hot! Any advice would be much appreciated. Thank

1 Answer

Hi tom, there is no engine light on. The" noise" is related with the air intake. Is like someones accelerating the car. Could this be because of a bad spark plug?

Your Answer:

Mercedes-Benz C-Class Experts

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

Related Models For Sale

Used Mercedes-Benz E-Class
411 Great Deals out of 16,016 listings starting at $2,495
Used BMW 3 Series
933 Great Deals out of 30,060 listings starting at $995
Used Mercedes-Benz S-Class
123 Great Deals out of 5,672 listings starting at $2,000
Used Mercedes-Benz CLS-Class
54 Great Deals out of 1,618 listings starting at $5,599
Used BMW 5 Series
425 Great Deals out of 16,553 listings starting at $1,987
Used Audi A4
151 Great Deals out of 8,596 listings starting at $998
Used BMW M3
21 Great Deals out of 1,726 listings starting at $7,895
Used Mercedes-Benz M-Class
147 Great Deals out of 4,750 listings starting at $2,000
Used Ford Mustang
420 Great Deals out of 37,982 listings starting at $1,400
Used Mercedes-Benz CL-Class
25 Great Deals out of 473 listings starting at $4,500
Used Honda Accord
825 Great Deals out of 89,715 listings starting at $995

Used Cars for Sale

2019 Mercedes-Benz C-Class For Sale
35 listings starting at $50,225
2018 Mercedes-Benz C-Class For Sale
52 Great Deals out of 9,390 listings starting at $24,990
2017 Mercedes-Benz C-Class For Sale
36 Great Deals out of 1,149 listings starting at $20,800
2016 Mercedes-Benz C-Class For Sale
15 Great Deals out of 990 listings starting at $19,975
2015 Mercedes-Benz C-Class For Sale
186 Great Deals out of 4,158 listings starting at $15,995

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.