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I have bmw530d auto which loses water quite quickly,no sign of hose leaks or head gasket failure

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Your radiator could be leaking or your head gasket could have blown out inside the cylinder, then your coolant would leak into the cylinder. 

Posted on Feb 23, 2009


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2 Answers

Coolant leak but not overheating at all

i think you should replace gas kit and give it for service
?taking risk like that can blow your engine

Mar 16, 2016 | Cars & Trucks

1 Answer

Ifull the tank in the radiator but it will disaper but no leaking in the hose what would i do

If you are losing coolant then you have either an external or internal leak.
If you can find no indication of an external leak from the radiator, the radiator overflow tank, any of the hoses on the system or around the water pump fitting then you may well have an internal leak. Check the radiator overflow tank carefully and the hoses to it for any signs of external leakage.

An internal leak of coolant can be via a failed cylinder head gasket or a crack in the cylinder head or both. Coolant can then leak under pressure into the cylinders or into the engine's lubrication system and will then mix with the oil. Check the condition and colour of your oil for evidence of coolant contamination. Check your exhaust for a constant flow of white exhaust emissions which is evidence of coolant entering the combustion chamber.

If you have run the vehicle with the engine overheating this will generally cause failure of the cylinder head gasket and possibly a crack in the cylinder head.

Feb 18, 2016 | 2001 Ford Escape

2 Answers

My Beamer is using slot of water but shows no signs of a radiator leak

has it been run hot lately?do you have water or coolant in your oil? pull the engine dipstick to see. do you have oil in the radiator? do you see coolant coming from the exhaust? these are all signs of blown head gasket. unexplained useage of coolant with no apparent signs of leakage usually means that coolants going trough the engine and out the exhaust system.smell bad when idleing in enclosed space? unexplained smoke coming from tailpipe when weathers warm? water residue dripping from tailpipe after the engines warm? i've given you most of the signs of a blown head gasket,which is what you requested, using alot of water with no sign of leakage. if no water in the oil,no oil in the water, then the leaks into the exhaust and out the tail pipe. you can do this, remove the ant-freeze from engine, then apply nanno technology[auto zone] water only added to engine. follow directions on 1quart bottle. this has worked for me several times.[for blown head gaskets that leak into exhaust] it's new technology that's new to the automotive industry. 1 quart costs $20.00 considering how much it costs to replace a blown head gasket that's only leaking into the exhaust sysytem,that's worth a gamble l to me. i've seen it work myself.

Feb 27, 2011 | 2008 BMW 528i Sedan

1 Answer

Range rover 2002 model 4.4i petrol engine, every 50-100km, losing 2litres water needs constant topping up. no sign of leaks around head gasket or rad. Inside carpet is dry so not heater matrix. what is...

It appears that you have a minor leak at where a hose attaches to an engine or radiator pipe. When the engine is hot, any small leak will evaporate quickly and therefore not be seen. As the coolant heats up it will expand into the overflow tank but once the engine is stopped the extra heat build up will force the coolant out the leaking joint. As the engine cools, the leak prevents the coolant from being sucked back from the overflow tank.

Check all hoses and clamps including heater hoses and those pesky little bypass hoses in the cooling system for a good tight fit and replace any hoses that have gone hard or have become soft and stretched. Those spring type hose clamps tend to be less effective in clamping as the hoses age. Worm drive ones are the best to use.

If unsure take vehicle to a cooling system specialist and have them do a pressure test and more thorough diagnosis.

If problem persists, then it could indicate a problem with the head gasket (Usually caused by allowing engine to become excessively overheated when cooling system has run dry) allowing very hot high pressure combustion gases into the engine water jacket, which super heats the coolant in the engine block, which then boils off, and is released via the cap or any leaks. If the head gasket is really bad it will leak water into the cylinders and into the oil in the sump. This is indicated by an emulsion of water and oil mix on the dipstick. You will also see white smoke (water vapour) from the exhaust.

Oct 12, 2010 | 2003 Land Rover Range Rover

1 Answer

Radiator loses water overflow tank full. replaced cap and no signs of leakage

No obvious leaks, ehh? First of all, start the truck, and watch the tailpipe. Do you have any smoke which is by chance white, and smells sweet? Now, turn it off real fast. Let it cool. Get a volunteer, take the cap off, put your hand over radiator fill neck. Do you feel pressure against your hand? Check the oil. Does it look kinda' milky? Does the radiator water look bubbly? Finally, when you pour water in, does it go down rather quickly, but not a leak (Within 2 minutes)? These may indicate a broken head gasket. Otherwise, start looking around for cracked old hose, cracked hose necks, loose clamps, etc.

Jul 13, 2010 | 1996 GMC Suburban

2 Answers

Two thing's one when i turn on my heat i don't get heat. Two i am alway's putting water in it. I just bought it

Hi having no heat would suggest the thermostat is stuck closed and will need replacing, how ever the really bad news is that if you dont see any water leaking onto the floor or around the engine then this points towards head gasket failure, the thermostat failing would have caused the engine to over heat and this would have caused the head gasket to fail.

Have a good look for a leak as this is the cheapest solution, make sure you check all hoses and rad for signs of water leaking, if you find no signs then the only other way you could lose water is via the head gasket, if you cant see water leaking then it can only be going into the engine, either into the oil or being burned out through the exhaust.

check you oil level stick for signs of a white substance if you have this then the water is getting into the oil via head gasket if the oil looks fine then the chances are the water is being burned off in the cylinder.

let me know how you get on or if you need further assistance ok

Jun 25, 2010 | 1993 Ford Taurus

1 Answer

My 1998 toyota camry 4 cylender car over heated top hose busted gasket on thermostate leaking car stop, so change out hose put new gasket ,added radiator fluid check for any leaks nothing so started car...

hi, it sounds like the head gasket has gone take out the spark plugs and check for signs of water also check the oil for signs of water as this to me looks and sounds like the head gasket has failed and will need replacing.

If water is not present then try starting the car with the coolant filler cap off and see if it starts if it does then this is head gasket failure if it still dont start then your going to need to get a compression test done and then this will tell you if the gasket is good or bad but to me it sounds like head gasket failure.

If the gasket needs replacing then you need to also check the water pump is working and also test the thermostat as any of these failing can cause the head gasket to blow again so make sure you get these checked ok.

Let me know how you get on or if you need further assistance ok

Feb 01, 2010 | 1998 Toyota Camry

2 Answers

My radiator is lose water everyday like a galon per day but i didnt find any liking. maybe the water is going inside the engine

check oil level if over full and looks like chocolate milk and exhaust for white smoke this could be a blown head gasket

Oct 29, 2009 | 2001 Dodge Caravan

2 Answers

'97 subaru overheating

head gasket most likely.

Aug 21, 2008 | 1997 Subaru Outback

1 Answer

68 ford mustang

Hi there!

This isn't going to be good news Im afraid. These symptoms are typical of head gasket failure.

Head gaskets can fail on one of 3 ways -
#1 Rupture to outside from cylinder - Lots of oil, steam, fire maybe - it's pretty obvious.
#2 Rupture from cylinder into an oilway - You burn lots of oil, blue smoke, lack of power, oil forced out of fillercap, dipstick, air filter gets black.
#3 Rupture from cylinder into coolant channel. You use water - but no leaks under car. White steamy exhaust on starting, Coolant overheats quickly and appears to boil. Inspection of coolant is sometimes oily.

Yours sounds like #3

It probably needs the cylinder head off and the gasket replaced. Quite a time consuming job, but DIY-able with the correct tools.

You can check the compression of the cylinders first just to make sure it is this and not leaks somewhere else -

Check out PetesPonies post on the mustang forum about leaks around the intake manifold. It may be easier to check this first.

Thanks for using Fixya! If it solves your problem, please rate as such. Thank you.

Jul 03, 2008 | 1966 Ford Mustang

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