Question about 1992 Mercedes-Benz E-Class

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Cooling system of motor don't work properly, above 80 degree Celsius then it start to work!!! What's wrong??

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Thermal temp switch usualy located at the bottom of the radiator or the temp gauge sensor is sending wrong temp signal to gauge. Have you put radiator thermometer in radiator to test that its all working when its supposed to?

Posted on Oct 30, 2008

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Too much time to warm up to 90c on winter, cabin heating is ok after 2km


System is functioning normally at this time, no action is required.

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What temp should my golf run at if the cooling system is operating properly? Runs perfectly on the highway but when i stop start it goes from min temp to only half on the gauge but seems to be runnning...


the temp seems to be fine. 80degrees celsius or less in stop and go traffic is normal,especially since the cooling fans are working and coming on at the proper time. the what seems to be running rough is another problem that doesn't seem to related to the cooling system temp. may want to check the spark plugs for worn electrodes.

Aug 08, 2011 | 1994 Volkswagen Golf

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A/C compressor replaced, now A/C does not cool properly. Had to take it back twice to original Repair shop to cool car insidethen took to new repair shop & installed dryer (don't know why first...


did the old pump burn up or was it just the clutch? If it locked up or had a lot of damage it will fill the lines with debris. If so the engine system needs flushed and change the orfice tube.
also check your pressure readings on your high and low side. do you have rear air?

Aug 05, 2011 | 1999 GMC Yukon Denali

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I have a 2001 2500hd Chevrolet with 6.0lt engine that when the outside air temp get 80 degrees or above the engine will shut down and will not start till the truck engine cools down and when it is 90...


Have you investigated the cooling system. Inspected all of those sensors? Normally a bad sensor would throw a code out, but it's worth a shot. Also go to basic stuff. Just throwing out ideas, flush and fill, thermostat, etc. Sometimes the biggest pain in the but is the easy stuff.

Hope this helps! Don't forget to rate.

Gtaplytmpt

Jul 22, 2011 | 2001 Chevrolet Silverado 2500HD

1 Answer

Temperature gauge goes well past halfway when outside temp is above 80 degrees, and A/C on.


I would start with checking the fan clutch if thats fine do a completed cooling system flush and replace the thermostat if you are still having problems replace the water pump

Jun 01, 2011 | 1993 Ford Ranger SuperCab

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Engine cooling fans don't come on


COOLING FANS DONT TURN COULD BE FAULTY FAN RELAY.FAULTY PCM AND FAULTY COOLANT TEMPERATURE SENSOR.CODE SCAN FOR FAULTY PCM CODE AND A FAULTY COOLANT TEMPERATURE SENSOR.SEE IF ENGINE COOLANT TEMPERATURE SENSOR IS GIVING CORRECT COOLANT TEMPERATURE USING A CODE SCANNER.IF ENGINE IS 190 DEGREES AND THE ENGINE COOLANT TEMPERATURE SENSOR READING 100 TO 80 DEGREES COOLANT SENSOR IS BAD.HOT WIRE COOLING FAN TO SEE IF FAN MOTOR WORKS.BECAUSE COOLING FAN MOTOR COULD HAVE OPEN CIRCUIT CAUSING ELECTRIC MOTOR NOT TO TURN ON.

May 13, 2011 | 2003 Dodge Stratus

1 Answer

I have a MBC220 94 and the oil go to the radiator.what is the problem and the solution?


If there is oil in the radiator, the problem lies in the headgasket. The gasket is broken in certain areas. Try a product carried in a lot of auto parts stores for around $20 called Liquid Glass. This is a permanant fix and will eliminate the need for headhasket replacement. Follow the instructions on the bottle and when you are done, purcahse a chemical radiator flush to rid the cooling system of the oil which will rot any of the hoses and the heater circuit waterpump til they fail. Once that is flushed and the system is filled with good clean coolant mixed with distilled water, turn the heater on high and make sure that the temperature om the gauge does not get above 80 celsius and that the fan is working. Let me know.

Nov 08, 2010 | Mercedes-Benz C-Class Cars & Trucks

1 Answer

A/C hot and cold air....


Technical Information: When the engine overheats (goes above 220 to 230 degrees), the ECM (Engine Contro Module) will disable the AC (won't let the compressor engage). This is a safety feature of the EMS (Engine Management System) to reduce potential damage to the engine from an overheat condition. Check your coolant level in the radiator & reseviore -- Low coolant level can produce the symptom you describe -- if low, top them off. Inspect your radiator hoses/cooling system for any signs of leakage (crusty deposits of dried coolant). Wherever you find this, that's where it's leaking. If you don't find any signs of leakage, replace the thermostat (& gasket if required (as a precaution) anyway. When the engine overheats, both cooling fans should come ON HIGH! If they aren't/don't, something's wrong and you need to find the cause. Every two to three years the cooling system should be flushed and inspected to ensure proper operation/condition and system protection. Overheating can seriously damage the engine. $$$$. An ounce of prevention is worth a pound of cure.

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