Question about 1985 Mercedes-Benz 300

1 Answer

Engine running hotter than usual

Recently changed thermostat (got from Mercedes dealer)...car is now running hotter than before...not overheating just hotter...coolant is fine...any suggestions?

Posted by on

  • Jay Glendenning
    Jay Glendenning May 11, 2010

    Did the dealer possibly give a "hotter" thermostat than what you had in originally?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 75 Answers

First check your axillary fan for function,if change your thermostat element look at the bottom you can see what degrees open the element,you can buy element with lower degrees.axillary fan working,first stage when aircon is on.

Posted on Feb 19, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I changed thermostat, radiator, water pump, hose, engine cooling temperature sensor, radiator cap and I'm still overheating. 2004 Chrysler town and country


Check the heater cores. There are usually 2 in a T&C. Also check the pipes running to the rear heater core. I recently had to have mine repaired because they were leaking!

May 22, 2015 | 2004 Chrysler Town and Country

1 Answer

I have a 2002 mitsubishi montero sport and we changed the thermostat, did a radiator flush and change radiator cap and the needle passes to mid point (normal) it hasnt overheated but it doesnt stay in...


Where do you live?
This has been a hot summer, bit hotter than usual due to the solar flares going on...
as long as the pointer stays within normal operating range, you must not worry... especially since you changed the thermostat and did a flush, did you make sure you got the right temperature range thermostat installed, rarely but few times that seems to be the problem, hotter thermostat gets installed by mistake.

Aug 19, 2011 | Mitsubishi Montero Sport Cars & Trucks

1 Answer

My 99 ford f150 pu can sit for 30 to 40 min warming up to operating temp then I leave for work and go aproximatley 15 to 20 miles and loose heater then the engine over heats. After a few min it boils over...


Change the thermostat. The thermostat might be opening too late to circulate. From doing so the coolant is just sitting there getting hotter and hotter which would cause overheating until the stuck thermostat decides to open. I would bring the car to a safe temperature and feel the radiator hoses if one is hot and the other isn't? You have a thermostat problem. Easy fix and cheap. I wouldn't run the vehicle too long until you fix it.

Jan 15, 2011 | Ford F-150 Cars & Trucks

1 Answer

Van engine overheating...hole in radiator. Replaced radiator. Engine still getting hotter than usual (gauge 3/4 over towards hot). Could it be the thermostat? Any suggestions appreciated.


yes, it could be thermostat. That would be an inexpensive DIY repair that might solve the problem.

Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Oct 06, 2010 | 1997 Chevrolet Venture

1 Answer

Truck is overheating replaced the thermostat still getting hot more when i run the ac


Most likely a bad water pump. Does it run hotter than usual at higher speeds like on a freeway/expressway. Check the fins in the radiator to make sure they're not clogged and restricting the air flow. Use a hose from the engine side and spray the water towards the front as that's the easiest way to remove the debris/bugs/dirt/pollen that may be adding to the problem.

Jun 11, 2010 | 2002 Ford Ranger Regular Cab

1 Answer

Originally car had a leaking radiator causing motor to overheat and introduce engine shutdown technology. New radiator fitted resolving problem for 2 months. Currently engine runs perfectly until temp


hello ,seems your thermostat element should be checked and locate your leaking problem,using a radiator tester could help you easily,also check your oil for contamination due for overheating,ty

Apr 27, 2009 | 1991 Mercedes-Benz Mercedes Benz 400 Class

1 Answer

My truck is getting hot ,even after I changed the thermostat


Your thermostat could be bad, getting stuck. I had that happen. While driving down the road I noticed the guage went way over to the hot side then went back. I changed it and all is well. It will run hot if there is something blocking the air flow through your radiator. Good clean oil up to the fill line will help your engine run cooler. If you havent changed your oil and filter lately, the oil filter may be clogged (full) and the oil is bypassing it. This will leave gunk and metal parts in the oil that make the oil hotter than it should be. Make sure your coolant level is topped off and you have antifreeze in it. The proper mixture of antifreeze helps keep an engine cool. If there is too much grease and oil buildup on the outside of your engine it will run hotter because the air flow cannot reach the metal and cool it off. Is your radiator clogged. Some people, if they have a leak in the radiator will use stuff to seal it from the inside. These additives can clog the radiator. 
HAVE YOU RECENTLY WORK ON ANY REPLACEMENT FOR YOUR THERMOSTAT?
Are you sure you have the right thermostat ?

Mar 10, 2009 | 1998 Dodge Ram 2500 2WD

1 Answer

Car running hotter then usual


sounds like wrong temperature range thermostat , or new defect , i only use stant thermostat , also double check coolant level , almost always air traps after coolant service

Feb 19, 2009 | 1985 Mercedes-Benz 300

1 Answer

1999 sunfire overheating


try changing the thermostat

Jan 09, 2009 | 1996 Pontiac Sunfire

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

Related Topics:

110 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

60792 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

164 Answers

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

Answer questions

Manuals & User Guides

Loading...