Question about Mercedes-Benz 300-Class

1 Answer

My mercedes 1993 300te that i just purchase was working fine up to yesteday when i started everything was fine than started like loosing power and missing to the point that when i stop at a red light fills like is going to die. i already replaced the spark plugs and wires distruibuitor cap and rotor and clean the air filter. Running out of ideas there is no check engine light on so i dont know if there is a light in the dash board to tell me what the computer is picking up if anything. Any ideas?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Mercedes-Benz Master
  • 51,307 Answers

Run the fault codes
it is a fuel supply problem---dirty injectors , fuel filter . fuel pump, fuel pressure regulator , EVAP canister venting problem

Posted on May 24, 2017


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 156 Answers

SOURCE: Removed & replaced dist. cap and rotor on 1993 S10 Blazer 4.3 V-6

The firing order for a Chevy s10 depends on which engine you have. 1.9L engine the firing order is: 1-3-4-2 . Distributor rotates counterclockwise. 2.0L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.5L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.8L engine the firing order is: 1-2-3-4-5-6 . Distributor rotates clockwise. 4.3L engine the firing order is: 1-6-5-4-3-2 . Distributor rotates clockwise.

Posted on Jul 03, 2009

  • 1071 Answers

SOURCE: would the computer in 1993 dodge shadow cause

pick up coil under cap

Posted on Jul 21, 2009

  • 2200 Answers

SOURCE: mercedes 300te radio code

You need to pull the radio from the dash and get the serial number of the radio which is on a label at the back.

Mercedes do not make stereos themselves but use various different manufacturers for their radios.

Once you have all the information from the label post it up and we can see if your radio is one that can be decoded by serial.

Posted on Sep 18, 2010

  • 300 Answers

SOURCE: I have 250000 miles on

If you have replaced the timing chain please disregard my answer, I'm risking my rating because I want to help you for free.
If the timing chain has not been changed that the problem might be an overstretched timing chain.

As timing chain accumulate mileage, chain stretch, sprockets wear out, and set the valves off timing. Most chains go up to 100000 miles or more, but not always. As a rule when there is more than about half inch of play between the gears on a V6 or V8, it is the time for a new timing chain and sprockets.
It is not unusual for a timing chain to accumulate 200000miles, but I remember a car, with broken timing chain, with only 160000miles on it, the valves were bent and a hole was put on the piston.

Signs of worn out timing chains are:
Rough idle.
Sluggish performance and poor economy.
Sudden engine performance change including the inability to start the engine.
Intermittent backfire through the intake manifold.
Inconsistent ignition timing or a clattering noise coming from the front of the engine.
It is a good idea to replace the water pump (coolant pump), and the thermostat while replacing the timing chain.
The cost of the replace of timing chain is at least +$1300, but if is to bad, we pull out engine and replace both guides. In this case might cost more.
Please do not be mad with me. I'm a certified dealer, and I'm trying to give you the necessary information to help you to deal with the problem.

Posted on Nov 03, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Mercedes 240d

common rail faulty

Feb 07, 2014 | Cars & Trucks

1 Answer

1999 Mercedes S280 Petrol. The car is not startup. We changed Crank Shaft Sensor and then car is started . 2 minutes later i stoped the car and i tryed start again. The car is not working again? Can u...

Check the crankshaft sensor again. It may have come loose, or the electrical connection may be loose. If there was physical damage to the old crankshaft sensor, the new one may have become damaged also. If everything is ok with the new sensor, scan the computer for fresh trouble codes.

Dec 20, 2010 | 2001 Mercedes-Benz S-Class

1 Answer

I had the oil changed on my 2001 Ford Taurus a couple days ago, they also changed the air filter. Just yesteday the cars engine light came on steady not blinking. The car seems to be running fine. What...

Can be that the oil pressure sensor has a loose connection at the terminal or that the pressure switch is faulty.
You will have to check this out, replace if faulty.
Hope the oil filter was also changed as you have not mentioned.

Aug 25, 2010 | 2000 Ford Taurus

1 Answer

Car would not start, i purchased a new battery, car ran fine for a couple of days and now it will not start again

Have charging checked for free at an auto store. I suggest buying a bosch regulator and replacing it on the alternator.

Aug 03, 2010 | 1984 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

Car won't start, battery is fine. No indication of any problems, returning from funeral car won't turn. All lights, radio everything else works fine.

May be neutral safety switch, put into neutral and try to start. If that works have switch replaced its on the transmission. Even if it starts that way it wont take long before the car wont turn over in that position.

Jun 04, 2010 | 1995 Mercedes-Benz S-Class

2 Answers

1993 190e mercedes loosing power when full throddle.

Could be, but I would check your engine wiring harness as MB was forced by the US to use a biodegradable insulation on the wiring and with heat starts to crack and fall apart. Also check voltage regulator on the alternator and your coil.

Nov 04, 2009 | 1993 Mercedes-Benz 190

3 Answers

1995 Mercedes S 320 won't start. battery is fine

I know on the L.H. (previous fuel injection system) models there was a module called a base module that worked as a big overvoltage relay and powered up all the control units for the engine and drivetrain,they had 4 to 6 10amp. fuses in the top and theywould blow fuses and sometimes fail themselves causing no start conditions. I beleive yours is an H.F.M. system. I used to do roadside and i'm also a mercedes benz tech. The first thing I would try would be to put the car in nuetral and see if it starts. the nuetral safety switches of that era are problomatic. next I would check my brake light fuse in the engine compartment fuse box. That fuse also powers the starter relay-even though it doesn't state that on the fuse schematic. Also to answer your question about a lockout relay-yes there is but they rarely cause a problem. I hope I have been helpful

Jul 06, 2009 | 1995 Mercedes-Benz S-Class

1 Answer

Problems with anti theft on 1993 mercedes 190

hi,try you spare key for proper function,read your owner manual for more information regarding alarm,if you want to try your alarm, lower your window,lock the vehicle,open the car from outside,alarm should trigger,or send your car to a dealer for proper diagnose,maybe loose electrical or stuck-up micro switch,ty

Apr 10, 2009 | 1993 Mercedes-Benz 190

1 Answer

2005 Mercedes C240; looses power and check engine light comes

better to bring your car to dealer to avoid replacing part.,better to check air mass sensor or idling actuactor.

Feb 10, 2009 | 1995 Mercedes-Benz C-Class

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

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

80637 Answers

Joseph Prosser

Level 3 Expert

772 Answers

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

Answer questions

Manuals & User Guides