Rough idle

Asked by Christos 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
you.

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:

CarGurus Experts

  • #1
    Lorne Grandison
    Reputation
    12,510
  • #2
    zabi
    Reputation
    5,610
  • #3
    PPC123
    Reputation
    5,150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercedes-Benz E-Class
30 Great Deals out of 496 listings starting at $5,700
Used BMW 3 Series
71 Great Deals out of 1,176 listings starting at $1,995
Used Mercedes-Benz S-Class
15 Great Deals out of 227 listings starting at $8,977
Used BMW M3
8 Great Deals out of 90 listings starting at $15,995
Used BMW 5 Series
19 Great Deals out of 321 listings starting at $4,500
Used Mercedes-Benz CLS
7 Great Deals out of 86 listings starting at $8,000
Used Lexus IS
25 Great Deals out of 311 listings starting at $5,900
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871

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. Content will be removed if CarGurus becomes aware that it violates our policies.