20 Most Recent 1989 Mercedes-Benz 300-Class Questions & Answers


Since the engine light comes on that means a fault code is stored for the problem that may be responsible for the no start issue. The next thing to do is have the system scanned for fault codes. Any Autozone will do the fault code test for free (except in California)

1989... | Answered on Oct 26, 2016


blue smoke is burning oil
I gather that you let the engine idle and when you give it rpms that there is a cloud of blue smoke
if that is the case it indicates that the valve stem seals are hard /failed and when the engine is at idle ( 15" mercury vacuum in manifold) the oil around the valves is sucked past the stem seals and into the combustion chamber
AS you have restricted use of the machine (every 3 weeks ) it is not a great problem as when you are on the road it is not happening (Only at idle )
It is repairable without removing the head if you find an accredited service shop that has experience in the procedure.

1989... | Answered on Jul 07, 2015


Blue smoke is not good!! Piston rings are bad or valves. On a Mercedes it will cost you more than the car is worth at this point. Unless you have a sentimental attachment to the car and really really want to keep it., I would get rid of it. 123,000 mile is a great life for a 1989.

1989... | Answered on Jul 06, 2015


car wont stay running its studdering cant find vacume leak need diagram

1989... | Answered on Feb 18, 2015


most likely is the 'resistor' that controls the fan speed. try 'jumping it' with a 10 gauge wire--blower should run on max speed.

1989... | Answered on Sep 14, 2014


Is the check engine light on ?
Have you checked base fuel pressure with a gauge ?

1989... | Answered on Sep 01, 2014


The best source would be www.beckerusa.com

1989... | Answered on Aug 01, 2014


my 1989 mercedes benz 300e engine light flash on and off can any one plz tell me what the problem is my email is rulebaby4@yahoo.com

1989... | Answered on Jun 27, 2014


If this happens when it is warm it may be vapor lock.
Otherwise or even if, start by changing the fuel filter.
Tthis will cause what you are experiencing.

1989... | Answered on Jun 24, 2014

Not finding what you are looking for?
Cars & Trucks Logo

326 questions posted

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Marvin
Marvin

Level 3 Expert

85206 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

300-Class Mercedes-Benz

  • 300-Class Mercedes-Benz

Most Popular Question

1989 mercedes 300se starts fine drive

  • Cars & Trucks
Loading...