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| E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models) |
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#1 | ||
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Super Member
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signs and symptoms of a bad water pump...
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#2 |
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MBWorld Fanatic!
Join Date: Mar 2004
Location: Irvine, CA
Posts: 2,392
Drives: 93 300 CE AMG conversion 02 Ford F250 4x4 Crew Cab Long Bed Yamaha WR 450 PW 50 & 80 Quads 250 & 50
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it pukes water all over the place. it runs hot. it pukes water all over the place.
that is jus my personal experience.
__________________
93 300CE AMG**94 Updated tail lights**Clear front side marker lights**Debadged**Euro lights HID converted**ATE power Disc rotors**500E calipers 4 piston painted red**Side marker lights**Brabus Monoblock V ***AMG Suspension**AMG ground effects**12 inch ARC sub**2 - Sony ES mobile amps**Pioneer DEH-P80MP**Dell DJ 20**MB Quart Components
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#3 |
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Senior Member
Join Date: Aug 2004
Location: Richmond, Va.
Posts: 285
Drives: 1991 300E
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Get your car up to operating temperature, run the A/C. Once the temp is about 80-85 deg. Park it and let it sit idling with the A/c on for about 5 minutes, then turn the car off. let the car sit for about 5 minutes with the engine off. Then turn the ignition so that the temp gauge registers. You will probably see it spike to over 100 because the car has been sitting with a hot engine and no coolant flowing through to take away the heat. Note the temp, then start the engine. If the temp doesn't come down to normal within about a minute, then you probably have a bad pump. When functioning properly, as soon as the car is cranked the pump will move enough coolant through the head to drop the temp very quickly.
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#4 |
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Super Member
Join Date: Apr 2005
Location: Northern Cali
Posts: 800
Drives: W124
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Like AMG_Eric said, coolant all over the place and usually a loud squeeking noise from the water pump. In the worse case scenario your pulley will seize up on the water pump.
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#5 | |
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Super Member
Join Date: May 2003
Location: Walnut, CA
Posts: 553
Drives: MB 1990 300E
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Quote:
my car will do this everytime i turn on and off the car. even when i dont have the A/C turned on. If i just drive and do some errands, turn off the car and come back later the temp will be in the 90's and the fan will go off until i start the engine and give it some gas, then the temp will drop down to normal. Is this still normal because I've never noticed it doing this before. It would always stay in the normal temp range when just doing errands and stuff, but it seems like it runs really hot when i drive and after i turn it off. |
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#6 |
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Senior Member
Join Date: Aug 2004
Location: Richmond, Va.
Posts: 285
Drives: 1991 300E
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It is perfectly normal for your temp to spike after you turn the car off. Think about it. When you turn off your car the coolant stops circulating around the engine. But the engine is still hot and will stay hot for a good while. So it just sits there and has only the stagnant coolant that is in the engine and the outside air to remove the heat that the engine has built up. This will take a while. However, as soon as you crank the engine up again and start pumping coolant through it, that will take all the built up heat away fairly quickly, Unless you have a bad water pump. So in short, don't worry if you run some errands, turn off your car, then come back a little later and find the temp is in the 100 range right when you start it.
This was a big problems with early turbos that were cooled by oil from the engine. When the car was turned off, the oil that cooled the trubo stop flowing to it, but the turbo was still spinning at about 7000 rpm and was still very hot. They didn't last very long and most manuf. started making seperate oil and coolant systems (intercooler)for the turbocharger. |
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#7 |
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Super Member
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...
well heres what my car is doing...
during acceleration i hear this funny whinning noise.... and lately ive noticed my engine temperature getting pretty warm... ive had this car since new.. and have never seen it run this hot. during highway its at approx 100.. but once i get of the highway and in normal stop and go traffic it gets almost up to 120. this is with the a/c running full blast and the weather here in kc has been around 95 consistently. i recently had my radiator changed from the original to the updated behr with the reienforced neck. does anyone know if this new one tends to run warmer than the original. any thoughts or suggestions? -thanks carino |
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#8 |
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Member
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When was the last time you flushed the coolant, and changed the thermostat? Check to make sure the aux fans are working also. A bad waterpump should show a constant loss of coolant.
__________________
1987 mercedes 300E 1995 e320 conversion(hated the 300e grill) HID/Xenon (D2S) Keyless Entry Monochromatic Paint (Custom Blue) Smoked Tails Flat Badged (front) Debadged (rear) custom "carbon fiber" console 18 inch HP EVO rims Sold! Now I drive a Monte Carlo SS ![]()
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#9 |
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Super Member
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....
im assuming that when the dealer but the new radiator in they flushed it... but im not sure... i had it installed a few months back... march or april.. i cant remember. the therm is the original and yes the aux fans come one.. they turn on at about 100ish or so. i dont seem to be loosing any fluid from anywhere except small (very small) puddles of water every once and awhile that im assuming is comming from the AC.
-carino |
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#10 |
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Member
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I think you should replace the thermostat, after all, it is the original one. That might be the cause of your problems.
__________________
1987 mercedes 300E 1995 e320 conversion(hated the 300e grill) HID/Xenon (D2S) Keyless Entry Monochromatic Paint (Custom Blue) Smoked Tails Flat Badged (front) Debadged (rear) custom "carbon fiber" console 18 inch HP EVO rims Sold! Now I drive a Monte Carlo SS ![]()
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| Tags |
| auto, bad, carlo, coolant, failure, light, monte, problem, pump, signs, symptom, symptoms, turn, water, waterpump |
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