Starting Problem

85

Asked by May 17, 2012 at 06:32 PM about the 1991 Mercedes-Benz 300-Class 4 Dr 300E Sedan

Question type: Maintenance & Repair

Starting Problem, 1991 300E Mercedes, Westborough, MA

1st flare-up – car initially starts and operates with no problem.  2 miles down the road, suddenly runs very rough sputters & bucks and stalls out.  After several attempts to re-start over 10 minutes, car starts-up, smoothes out and runs fine all day

2nd flare-up a week later - car initially starts and operates with no problem.  Drive to the store 2 miles away, park & shut car off.  Return 10 minutes later, car turns but won’t start even after many attempts.  Leave car and return 20 minutes later, car starts-up and runs smooth & fine.

Would like to head-off the problem before getting stranded or needing to tow car.  Recommendation(s)?

9 Answers

2,655

I had a similar problem a while ago with one of these, it turned out to be a blocked fuel filter. However ther are many causes here, poor ignition coil, fuel filter, fuel pump etc etc. You will need to check these items when the car is in a 'failed state'. Carry a spare spark plug so that you can pull a lead off and earth the body of the plug to the engine, crank the engine and you should see a spark, this will illimnate the ignition as at fault, if you have a spark then i would look into the fuel system.

6 out of 6 people think this is helpful.
85

Hi Paul, Thank you for your response. I had the fuel filter replaced during full tune-up less than a year ago alongs with distributor cap, rotor, plugs and plug wires. I've had the ignition coil replaced ~30,000 miles ago. This weekend had the fuel pumps inspected which both appear to be ok and decided to replaced the OVP relay. I will post an update if new OVP fixed stalling problem or not. Will know over the next week or two. If OVP didn't resolve the stalling issue I'm considering replacing the MAS controller but open to suggestions as it is pretty expensive if it's not the culprit. I'm also having a high idle issue now when car is warm/hot. Revs up to 1500rpm and will rev down to 1000rpm when hit the gas pedal but will climb back up to 1500 and stay until put in D gear. Any advice?

5 out of 5 people think this is helpful.
40

Did you ever find out what caused your problem? Iam having the same problem

2 out of 2 people think this is helpful.
85

Hi David, In my case replacing the neutral safety switch did the trick. Also made sure the crank shaft position sensor was fine. Plugs needed replacing and did that too. Perfect! Hope this helps and best of luck.

3 out of 3 people think this is helpful.
30

disconect the injector that is under an close to the fuel distributor i did it on older model and runs great since

2 out of 2 people think this is helpful.
30

you could also check all the connections cause of moisture it could be a temp switch making it run rich

30

but you can also suspect vacuum leaks

1 out of 1 people think this is helpful.

I have a 1991 Mercedes Benz 300 ce I have changed to cool stripper cap and rotor button and I still don't have enough fire can anybody help me?

40

I have a ? I have a '93 300ce and I'm having trouble with the locking mechanism. When I lock the door (with the key) from the driver side sometimes the passenger side does not lock, so I have to go to the passenger side and lock it. Does anyone know what's going on with it?

4 out of 4 people think this is helpful.

Your Answer

Add photo

Related Questions

  • starting problem 5 answers

    I have a 1991 300ce24 valve and when you start it ,it splutters and misses for a short time and will conk out sometimes but once it evens out it will run smooth all day long and takes the reves and pl...

    1991 Mercedes-Benz 300-Class 2 Dr 300CE Coupe

    -

    Maintenance & Repair

  • starting problem 7 answers

    when i start my car in the morrning everything is fine and is to fast to start from the first start,but when the engine get hot during the day i start it and shutdown about 2 or 3 time to get start wi...

    1992 Mercedes-Benz 300-Class 2 Dr 300CE Coupe

    -

    Maintenance & Repair

  • I have a 1993 Benz 300ce 3.2 (Sportline). My problem is No start . No crank.

    When I turn the key to the on position as normal all the lights in the dashboard comes on but won't start (DOES NOT TURN OVER). I checked my fuses and my C fuse was blown. All the rest of my fuses ...

    1993 Mercedes-Benz 300-Class 2 Dr 300CE Coupe

    -

    Maintenance & Repair

  • red light at dash/hard starting 2 answers

    This vehicle is a 1988 300e. Changed out oxygen sensor, red light remains on. Engine cranks fine, engine fires within 6sec or so, but will not operate properly if gas pedal is worked. Takes about a mi...

    Mercedes-Benz 300-Class

    -

    Maintenance & Repair

  • Why car won't start when you put gas in it 1 answer

    When I put gas in my Mercedes it will not start. Why?

    Mercedes-Benz 300-Class

    -

    General

300-Class

Looking for a Used 300-Class in your area?

CarGurus has 199 nationwide 300-Class listings starting at $6,950.

ZIP:

Search Mercedes-Benz 300-Class Questions

Mercedes-Benz 300-Class Experts

#1 James Ramond
James Ramond
Reputation 200
#1 Tom Demyan
Tom Demyan
Reputation 200
#3 joemom
joemom
Reputation 170
View All

Related Models For Sale

Used BMW 3 Series
1,794 Great Deals out of 40,896 listings starting at $1,250
Used Mercedes-Benz SL-Class
112 Great Deals out of 3,431 listings starting at $1,500