Question about 1990 Mercedes-Benz 300 Diesel

1 Answer

What could be the cause for the coolant warning light staying on after the engine is started? 1990 300E, 4-Matic, 88000 miles. I added the coolant up to the top level of the holding container, checked that all hoses are intact, and that there are no leaks visible. Thank you for your advice.

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Contributor
  • 361 Answers

Try checking the coolant in the radiator some times its got trapped air inside.

Posted on Nov 08, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Low coolant warning light


The radiator may be clogged or defective.

Jun 24, 2016 | Cars & Trucks

1 Answer

Why would the oil light stay on?


That depends on the type of oil warning light being displayed. There are 2 types of warning lights

1. Low oil pressure light which all cars have
2. low oil level light which some cars have.

Low OIL PRESSURE warning means the oil pressure is below minimum and when this happens there will be insufficient lubrication of many engine parts because sufficient oil cannot get to all parts of the engine it is required to lubricate. Until the cause is identified and rectified the warning light will remain. If you run your engine with low oil pressure you will cause expensive damage to internal engine components.

Low OIL LEVEL warning means the oil in the sump has dropped to a dangerously low level (which may be due to an oil leak or abnormal oil consumption by the engine.) This warning means the oil level needs to be topped up and the warning will stay displayed until you top up the oil. Running the engine with low oil will cause expensive engine damage.
Since it is a 2 minute job, Oil levels should be checked fortnightly as a minimum, together with radiator coolant and power steering fluid levels, if you run the car most days each week as most people do.

It is possible for a warning light to remain displayed when the cause has been dealt with because there is a problem with the sender unit. However it needs to be established with alternative checks that the problem has been fixed before investigating if there is a problem with the warning light itself.

Nov 21, 2015 | Cars & Trucks

1 Answer

I have a 97 Chevy Lumina. It has 276,*** miles on it. I bought it used 4 months ago. It was running excellent then the service engine soon light, low coolant light, and change oil soon light started coming...


The fact that the oil was low would not be from the oil pump, but from wear in the engine. If it is not smoking when you start it or as you drive, you can probably keep it running by just keeping the oil level checked at each fuel fill-up. As for the car shutting off, you didn't say if the engine seized or got real hot. A low oil pressure problem should have triggered a warning light before the problem got to the point where you lost the engine.

If the car ran after you added the oil, you got lucky and need to always check it.

Aug 08, 2011 | 1997 Chevrolet Lumina

1 Answer

My 2001 Ford Focus was low on coolant which caused the multifunction warning light to illuminate. Coolant was added, but now the power supply to the engine is low and the charging system indicator is on. ...


Most "power supply to the engine is low and the charging system indicator is on" is an indication that your Alternator is failing. However it could also be a sign that the Belt is worn, stretched out or is slipping. Check you belt first to determine if you need a new belt.
If the Belt(s) are fine:
One way to determine if the Alternator is bad is start the vehicle and while the engine is running, remove the Negative Cable from the Battery. If the Engine dies, it is a bad alternator, and should be replaced.
The Battery starts the vehicle and run's other nominal operations. The Alternator actually runs the engine,
providing the fire/spark to it. If the Alternator is starting to fail, it will draw power from the Battery.
Let me know if this helped, or if you have any additional information, problems, or questions. Feel free to contact me at FixYa.com!
p.s. When you added the Radiator Fluid, did any spill onto the Belts or onto the Alternator? Radiator Fluid onto the Belt could have caused it to slip, causing these illuminations of the warning lights. It could also kill an alternator pretty quickly.

Jan 27, 2010 | 2001 Ford Focus

2 Answers

1983 Volvo 850 All warning lights on and no power steering


WELL SOUNDS LIKE THE BATTERY OR ALT WENT BAD BUT MAKE SHERE ALL THE BELTS ARE ON

Aug 19, 2009 | 1995 Volvo 850

1 Answer

2004 Sierra 5.3 l - Engine coolant blowing out of reservoir


this was caused by the cap being gone, there is zero doubt of this, I hope u have not damaged the cylinder head gaskets, time will tell.

Jan 24, 2009 | 2006 GMC Sierra

Not finding what you are looking for?
1990 Mercedes-Benz 300 Diesel Logo

230 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

yadayada
yadayada

Level 3 Expert

76109 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

166 Answers

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

Answer questions

Manuals & User Guides

Loading...