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My p38 2,5 bmw lees a drop off water when cold but does not leak when running or hot

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  • BMW Master
  • 2,548 Answers

Check water pump .

Posted on Feb 13, 2019

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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johnjohn2
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SOURCE: 1991 bmw 318is 4 door 16 valve motor, runs hot and radiator cold

you may have bad waterpump,the impeller on pump may be borken, just because it doesnt leak doesnt mean its good.also could have exhaust entering cooling system (bad headgasket) if pump is good have a block test done.

Posted on Sep 29, 2009

nvannoy
  • 234 Answers

SOURCE: BMW 1995 318i - Car Running Hot

There is a blockage or leak in your cooling system. That may come in a few different forms:
Incorrectly installed thermostat
Water pump not functioning - you may see water dripping from the pump or a stain from the hole under the water pump.
Severely coroded hoses/coolant passages - if the fluid is brown and the inside of the radiator rusty
External leak - you would see fluid on the ground Internal leak - you would see steam/white smoke from the tail pipe or water in the oil (may look like chocolate milk or not), if the oil level is extremely high this would be a good indication
heater core bypassed

Posted on Jan 06, 2010

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Why is water leaking from expansion tank when engine turned off on vw 1996 polo


There should be two level markings on expansion tank; one for cold engine, and the other for normal running temperature ( hot ). Check level after vehicle has sat for a few hours or parked overnight and make sure it is at the cold level of expansion tank marking. This will allow room for expansion of coolant when engine is in use in expansion tank.

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Test Water Pump on BMW


Loosen of the tension on the belt. see if there is any movement in the pulley (up-down -in -out Spin the pulley and check for roughness in the bearing.; Check for water leaking from the small hole in the housing at the base of the pump housing . Refit belt and correctly tension if nothing found. Check when it over heats (idle at lights) hard runs (speed) starts when cold and temp gauge continues to rise after engine is hot check if fan comes on at all.. Is the engine actually getting hot or is it an indication from the temp gauge ( faulty temp sender). If all is ok engines run hot if they are running lean so check the o2 sensor in the exhaust

Jan 26, 2013 | BMW X5 Series Cars & Trucks

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2007 sonata water leaking under throttel body


under the throttle body is the cold start unit where two hose pipes are and the one works as an inlet with first start with cold and after with hot water feeding and the other as out hot water return to engine. The job of that unit is to get the water temperature and as electronic connected with the ecu is giving the message for cold start rev up until the water temperature change to hot and revs dropped to the correct according to ecu. most propably is either one of the two hoses leaking or the flange itself.

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My 2000 Z3 BMW smells like it is running hot. The dash gage shows normal (right in the middle) We have not found any leaks anywhere indicating that the water resivor overflows. Any suggestions?


Check the exhaust side of your valve cover gasket for evidence of an oil leak. Burning synthetic oil tends to smell like hot plastic.

Mar 15, 2011 | 2000 BMW Z3

1 Answer

My 1993 Suzuki Samurai will not idle when hot.Idles perfectly when cold.It also backfires when running against compression.



Welcome to FixYa.com



Check for vacuum leaks with a can of carb cleaner-engine running-spray all around intake and vacuum hoses -if you here the engine bog down or race up there is the leak-too spray around EGR valve.



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Jan 31, 2011 | Suzuki Samurai Cars & Trucks

1 Answer

93 bmw 325i series,water dipping from behind tranmissionrun hot


  • SOUNDS LIKE YOU NEED A HEAD JOB. CRACKED HEAD OR NEED A HEAD GASKET. CHECK YOUR ENGINE OIL IF IT HAS WATER IN IT OR IF WATER IS LEAKING OUT OF TAIL MUFFLER ITS A CRACKED HEAD. IF NOT ITS HEAD GASKET. ANOTHER THING WHICH COULD BE IS FIRST MAKE SURE THAT THE WATER PUMP IS NOT LEAKING WATER CUZ IF IT IS THEN IT WILL BE THAT. SOMETIMES RUNNING YOUR VEHICLE WITH A BROKE WATER PUMP HEATS UP ENGINE CAUSING HEADS TO CRACK WHEN FILLING WITH WATER BUT USUALLY THE HEAD GASKET GOES FIRST. HOPE THIS HELPS.

Jul 24, 2010 | 1993 BMW 3 Series

1 Answer

BMW 1995 318i - Car Running Hot


There is a blockage or leak in your cooling system. That may come in a few different forms:
Incorrectly installed thermostat
Water pump not functioning - you may see water dripping from the pump or a stain from the hole under the water pump.
Severely coroded hoses/coolant passages - if the fluid is brown and the inside of the radiator rusty
External leak - you would see fluid on the ground Internal leak - you would see steam/white smoke from the tail pipe or water in the oil (may look like chocolate milk or not), if the oil level is extremely high this would be a good indication
heater core bypassed

Jan 06, 2010 | 2003 BMW 5 Series

1 Answer

1991 bmw 318is 4 door 16 valve motor, runs hot and radiator cold


you may have bad waterpump,the impeller on pump may be borken, just because it doesnt leak doesnt mean its good.also could have exhaust entering cooling system (bad headgasket) if pump is good have a block test done.

Sep 29, 2009 | BMW 318 Cars & Trucks

3 Answers

Coolant leak and overheating


its hardly one of the frost plugs leaking at the back of the engine is it...due to the pressure when the thermostat stoped working,,,probably a long shot though,,,,

Apr 21, 2009 | 1997 BMW 7 Series

1 Answer

1996 Jeep cherokee, leaking coolant when cold/ hot ok.


waterpump houseing/shaft seal is on the way out hence the water/coolant, running along the block. when hot the seal does so, when cold and depressurising seal doesnt.

Jan 25, 2009 | 1999 Jeep Cherokee 4WD

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