what would make the oil to get on # 3 plugs on a 02 c320 benz

Asked by Jul 22, 2013 at 08:17 AM about the Mercedes-Benz C-Class

Question type: Maintenance & Repair

3 Answers

28,465

Which part of the plug? if its the top then it could be a bad valve cover gasket, if its the bottom of the plug it could be much difficult to determin. Bottom of the plu could mean bad rings, ect.

2,805

Are you sure it's oil and not just an old blackened plug wiv a bit of unburnt fuel?

5,795

If the oil is on the outside of the plug , then it could be the valve cover gasket. Simple fix. either tighten the valve cover bolts (normally after awhile when the gasket gets hard and brittle they shrink and you may need to torque down the valve cover to stop any little leaks that may start) wost case you buy a new valve cover gasket. Now, if you are detecting oil on the plug when you take the plug out and inspect the tip, you have a more serious problem. Does the car spew white smoke when you accelerate? Then, an engine rebuild is in order.

Your Answer:

C-Class

Looking for a Used C-Class in your area?

CarGurus has 25,492 nationwide C-Class listings starting at $1,100.

ZIP:

Mercedes-Benz C-Class Experts

  • #1
    Lorne Grandison
    Reputation
    5,710
  • #2
    PPC123
    Reputation
    4,000
  • #3
    zabi
    Reputation
    3,040
View All

Related Models For Sale

Used Mercedes-Benz E-Class
392 Great Deals out of 19,491 listings starting at $1,913
Used BMW 3 Series
1,038 Great Deals out of 30,181 listings starting at $900
Used Mercedes-Benz CLA-Class
175 Great Deals out of 6,304 listings starting at $13,998
Used Mercedes-Benz S-Class
149 Great Deals out of 6,694 listings starting at $1,000
Used Mercedes-Benz CLS-Class
68 Great Deals out of 1,965 listings starting at $5,495
Used BMW 5 Series
393 Great Deals out of 16,848 listings starting at $1,653
Used Audi A4
189 Great Deals out of 9,633 listings starting at $1,400
Used BMW M3
15 Great Deals out of 1,493 listings starting at $4,500
Used Ford Mustang
296 Great Deals out of 39,978 listings starting at $1,312
Used BMW 4 Series
307 Great Deals out of 10,560 listings starting at $15,500
Used Chevrolet Camaro
259 Great Deals out of 27,088 listings starting at $2,900
Used Mercedes-Benz CLK-Class
30 Great Deals out of 912 listings starting at $2,495
Used Mercedes-Benz M-Class
215 Great Deals out of 5,415 listings starting at $1,900
Used Honda Accord
706 Great Deals out of 102,595 listings starting at $999
Used Mercedes-Benz CL-Class
22 Great Deals out of 493 listings starting at $4,999

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.