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

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

Question type: Maintenance & Repair

3 Answers
46,155

Michael answered 10 years ago

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.

Mark helpful
6,645

Mick answered 10 years ago

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

Mark helpful
12,535

Lorne answered 10 years ago

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.

Mark helpful

Your Answer:

Related Questions

C-Class

Looking for a Used C-Class in your area?

CarGurus has 1,318 nationwide C-Class listings starting at $3,500.

Postal Code:

Shortcuts

Search Mercedes-Benz C-Class Questions

CarGurus Experts

  • #1
    Lorne Grandison
    Reputation
    12,450
  • #2
    zabi
    Reputation
    5,600
  • #3
    PPC123
    Reputation
    5,150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercedes-Benz E-Class
34 Great Deals out of 511 listings starting at $5,450
Used BMW 3 Series
60 Great Deals out of 1,160 listings starting at $2,500
Used Mercedes-Benz CLA
37 Great Deals out of 547 listings starting at $12,995
Used Mercedes-Benz S-Class
16 Great Deals out of 201 listings starting at $6,500
Used Mercedes-Benz AMG GT
3 Great Deals out of 67 listings starting at $88,995
Used BMW M3
8 Great Deals out of 81 listings starting at $14,995
Used Mercedes-Benz CLS
13 Great Deals out of 108 listings starting at $7,200
Used Mercedes-Benz GLE
32 Great Deals out of 1,037 listings starting at $19,995
Used BMW 5 Series
17 Great Deals out of 283 listings starting at $5,299
Used Dodge Charger
42 Great Deals out of 857 listings starting at $5,995
Used Mercedes-Benz GLC
45 Great Deals out of 940 listings starting at $18,888
Used BMW M4
8 Great Deals out of 85 listings starting at $44,444
Used BMW 4 Series
16 Great Deals out of 412 listings starting at $14,950
Used Chevrolet Corvette
15 Great Deals out of 777 listings starting at $18,999
Used Ford Mustang
35 Great Deals out of 1,603 listings starting at $7,999

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