» » »

Mercedes-Benz Q&A

Ask Your Question

1990 Mercedes-Benz 420SEL Question: excessive smoking



dave boyle, Chehalis, WA, October 07, 2010, 12:48

car smokes after being driven for half hour around town or up hill, car has 148,000 miles and has been resonably well maintained. It uses about 1 quart oil per 3,000 miles. Thanks.

1 Answer
Flag This
  • Answer #1

    Greg-Julia from Auburn Foreign & Domestic Car, October 12, 2010, 17:05

    Worn valve guides or failed valve guide seals and piston rings worn or sticky can cause that concern. Greg

    Flag This
  • Reply

    Visitor, November 12, 2010, 09:51

    Thanks-sorry to get bacxk so late

    Flag This