Question about Audi A4

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Cutting out/overheating firstly the problem started i was loosing water and the car over heated. so i used radweld and topped up now that seems to be fine. i went out the other morning and car wouldnt start so i charged the battery all day and now it starts. when i slow down at lights or to go round a corner the car just cuts out. its a 1998 audi a4 2,4 v6 please help

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Bad news if that got hot those cylinder heads dont like that,it could have warped a head,compression test it to see what they are,but my guess is thats going to be expensive..

Posted on Dec 30, 2008


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My 1.4 corsa utility is overheating we have put in new water pump new thermostat but it still overheating

you may have a blown head gasket or you still have air in the system. take the expansion cap off fill water to the top. run engine and when thermostat opens squeeze the pipes all round the engine to help remove the trapped air make sure the heater is on full heat and number on fan speed. when the air looks to be out and the fan comes on to cool the engine down shut off the engine. if air is still there rev engine a few times this will force more water out so top up to the top and squeeze pipes, keep doing this till there is no bubbles coming out of the expansion tank. when done leave to cool down and then top up and put cap back on. if this doesn't work and you keep getting air in then you need to have the head compression tested, or do the same with a bottle of radweld in the system. use the bottle that works with antifreeze, do as before but with the radweld in. it will leave a copper coating around the system and header tank. this is normal.

Jun 06, 2017 | Cars & Trucks

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Check your thermostat ,then if that's not it,check your water pump.

May 20, 2013 | 2004 Nissan Sentra

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99 sunfire loosing water and overheating

Lot's of these problems going around. First thing is to locate where the coolant is going. Is it leaking onto the ground or going through the engine and out the exhaust? As for no heat, Check to be sure you have enough antifreeze. Pure water can cause the engine to not warm up and result in no heat. Air in the system can also cause these problems and must be bled out through the air bleed screw on top of the engine. On most of these cars it is towards the passenger side front on a metal pipe. It's a funny looking fitting with a flat head screw on top and a hole on the side. With the system full and the car running, slowly open the screw until bubbles come out and continue to bleed until you get no more air out. Let the car run to reach normal running temp and try bleeding again and again until you can't get any air out (they're funny that way). If you can not locate coolant leaking onto the ground it's due to a blown head gasket or a cracked head.12_24_2012_5_56_58_pm.png

Dec 24, 2012 | 1999 Pontiac Sunfire

1 Answer

I have a 93' gmc 1500 with a v-6 the truck keeps overheating with rusty water leaking into the cab on the passenger side. Iknow this is usually the heater core, but the water leaks slowly not all at...

Overheating could be several problems, usually the thermostat at fault, maybe resolved by cleaning, may need changing.

But water seeping from into the passenger compartment could be a small hole in your heater matrix.

The way I'd go about it is flush the system out and replace the coolant also add something like "Radweld" or "Kseal" to your cooling system. Then give it a good run.

This should block any pin ***** holes you may have.

Its worth bearing in mind though, that if it doesn't work, you have to start all over again and of course you'll have lost on the coolant and radweld.

Jun 12, 2011 | 1993 GMC Sierra

1 Answer

My M/Benz c180 is over heating and boiling especially in trafic jams

Check the water level in the radiator and for any leaks on the radiator pipes. Check the condition of the thermostat and if there is rust inside the radiator. If so, replacements will be needed.

If the overheating is regular the cylinder head might warp so check the above quickly to ensure you don't need a top end (engine) rebuild. As a temporary measure you can add radweld to the radiator or an egg (if you're really stuck).

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1 Answer

I have a 2002 Olds Intrigue; standard 3.5, 116K miles; Problems started with a minor water leak; first mechanic replaced the Throttle Body gasket; second did an extensive pressure test on the coolant...

most likely heater core and to check if the water pump working..allow vehicle to warm up enough for thermostat to open and check for circulation in the fluid inside the radiator..if see it..water pump works.

Jan 28, 2011 | Oldsmobile Intrigue Cars & Trucks

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I would recommend that you bleed all air out of the cooling system. The bleeder valve is located on top of the engine. Once engine starts to overheat or when you can hear bubbling back into the overflow bottle, turn car off and open bleeder valve. If you see bubbling you have air in your system. Bleed the system a couple of times and see if this helps.A heat sensor sending unit which controls activation of the electric fan could also have failed.But is the heat sensor is properly working then check the radiator cap is it properly fitted or got loose.If its loose it will release the pressure and car will overheat.But if the radiator cap is properly closed.Then its time to check the HEAD GASKET.As you have mostly replaced all the possible faults for overheating and if other mentioned possibilities are checked OK.Then its time to check and replace head gasket. Thanks. you can rate this solution and show your appreciation.

May 19, 2010 | 2004 Land Rover Discovery

2 Answers

The heater in my megane coupe (97) is a no goer and blows out cold! Great in the weather weve had! My Dad did try to fix a leak I had by puttin in some RADWELD and not long after - I lost my

stop gap measures cause more problems than they fix
will have to replace the heater core ( if that was the leak)or fix the leak properly, flush out the cooling system properly and refill with the correct coolant conditioner mix

May 14, 2017 | Renault Sport Cars & Trucks

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