I'am the mechanic who replaced timing chain on 1994 mercedes benz s500 smoke from tail pipe smells like oil

Asked by Mar 14, 2017 at 02:54 PM about the 1994 Mercedes-Benz S-Class S 500 Coupe

Question type: Maintenance & Repair

1 Answer


The smoke coming out of your exhaust is most likely oil being burned through your engine. The oil gets into the cylinder by a few ways. The first way is for the oil to get by the oil control rings of the pistons. The engine’s pistons would have to be removed and the rings replaced on each piston. Also, oil getting by the valve seals on the valves can cause the smell, which indicate the valve guides are worn. This would mean the heads have to be removed and rebuilt. The last cause is the engine has massive amounts of sludge and is clogging the oil entries. This would lead to the oil being sucked into the intake from lack of oil changes. All of these problems will require the engine to be checked and major repairs have to be done to fix it. I would try an oil engine flush first

1 of 1 people found this helpful.

Your Answer

Mercedes-Benz S-Class Experts

  • #1
    Tom Demyan
  • #2
    Michael Kane
  • #3
View All

Related Models For Sale

Used Mercedes-Benz E-Class
44 Great Deals out of 674 listings starting at $4,990
Used BMW 7 Series
6 Great Deals out of 178 listings starting at $3,990
Used Mercedes-Benz SL-Class
113 listings starting at $10,900
Used Mercedes-Benz C-Class
140 Great Deals out of 1,682 listings starting at $2,500
Used Land Rover Range Rover
6 Great Deals out of 102 listings starting at $6,980
Used BMW 5 Series
28 Great Deals out of 659 listings starting at $3,500
Used Chevrolet Corvette
522 listings starting at $9,900

Used Cars For Sale

2018 Mercedes-Benz S-Class For Sale
9 listings starting at $121,590
2017 Mercedes-Benz S-Class For Sale
5 listings starting at $105,998
2016 Mercedes-Benz S-Class For Sale
11 listings starting at $85,998
2015 Mercedes-Benz S-Class For Sale
28 listings starting at $69,907
2014 Mercedes-Benz S-Class For Sale
13 listings starting at $59,982

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.