Question about 1997 Audi A4

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Oil in the cooling system audi a4 1.8 20v over heating fault

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If oil is in the cooling system you have a cracked head or a bad head gasket.

Posted on May 09, 2010

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Why is 2001 audio overheating


Most Audi's over heat for one reason. Bad cooling processes and equipment.

what does that mean?

Audi Cooling system. Is under pressure... if hoses (heater core) are plugged or the thermostat fails or its a hot day and the cool fans arent running you are likely to experience the dreaded AUDI VW cooling issues.

First things First. Check the coolant and OIL level.

any white sludgey stuff in the oil (popped head gasket)
low oil.. could be over heating your engine.

Freezing cold day when it is over heating.. frozen coolant


Thermostat issues are hard to determine and So cheap to rectify...
ask yourself this? when was it changed last if not in the last 60 K and you are having an issue. REPLACE IT.. Now you can trust it again.


Over heating issues after replacing a thermostat or having a low coolant issues and you have filled it again.. its likely you have the double dreaded AUDI AIR BUBBLE.

I have worked out a few by letting the engine warm up and cool down repeatedly 6 - 10 times..
By WARM up I dont mean over heat and destroy.

Ever time it heated to normal operating temp the thermostat opened and moved some air around the loop.
when the system cooled i added a little more audi coolant to the tank and repeated the process eventually the bubles come out enough to drive.


be smart take it to teh end of the drive and back and check the temp, oil and coolant.
park it.. let it cool
next drive take it down the drive, to the end of the neighbors drive and back.. re check the temp, oil and coolant.. see the pattern?

DO IT.

lol It works for me.. Be patient. double check yourself before driving. Double check it again.. like you need to start the task from the finish.. you will be surprised the things you find you missed. : )

Cheers and good luck.

Jun 20, 2014 | 2001 Audi A6

1 Answer

Getting OBD codes p0420 and p0430, how to fix these issue with my 2001 Audi A6


2001 Audi A6
EOBD code: P0420
Fault location: Catalytic converter system, bank 1 - efficiency below threshold
Probable cause: Catalytic converter, wiring, heated oxygen sensor 2 (downstream)

EOBD code: P0430
Fault location: Catalytic converter system, bank 2 - efficiency below threshold
Probable cause: Catalytic converter, wiring, heated oxygen sensor 2 (downstream)

Sep 14, 2010 | 2001 Audi A6

1 Answer

What is code #code p1296


Definition of Diagnostic Trouble Code P1296 Audi: Cooling system malfunction Chrysler: No 5 volts to MAP sensor Dodge: No 5 volts to MAP sensor Ford: Injector Multiple Faults - Bank 2 Jeep: No 5 volts to MAP sensor Lincoln: Injector Multiple Faults - Bank 2 Mazda: Injector Multiple Faults - Bank 2 Mercury: Injector Multiple Faults - Bank 2 Mitsubishi: MAP Sensor 5-Volt Supply Fault Volkswagen: Cooling system malfunction

Jun 08, 2010 | Volkswagen Jetta Cars & Trucks

2 Answers

Audi a4 oil in the radiator system


sorry dont run it. The cooling system is a sealed unit with no way for oil to get it. Problem the system is allowing oil from acrack in the block- head or metal area to the cooling system. Maybe a gasket that is alowing the transfer in the head area.

Jun 07, 2010 | 1998 Audi A4

1 Answer

How to replace seal on oil cooling system


remove oil filter. loosen 24mm hex nut holding oil cooler in place. remove oil cooler and fit seal. may need to disconnect coolant hoses from oil cooler, if so cooling system must be bled on reassembly.

May 14, 2010 | 1999 Audi A4

1 Answer

I have a 2002 audi a6 quattro and has oil dissapearing, but no signs of it on the ground, this problem only happens in winter, summer the car is pefectly fine, please help


If your car has oil cooling lines, what happens is expanding in heat, no leak, contracting, getting smaller, in cold, seal do not seal properly, and then leaks occur.
Please let me know what you find.

Feb 10, 2010 | 2003 Audi A6

2 Answers

I have an audi a4 1.8 se 1998 the heating system doesnt work inside the car i have checked the oil and the coolent they ok


Its very probably the heater core underneath the dashboard. This has the connections and valves that draw hot water from the engine cooling system. If this is not working then the heating will not work. This needs to be checked out by a mechanic as its pretty tricky to fix and may need to be replaced. Check that the fuses are good first though as it maybe something as simple as that.

Nov 04, 2009 | 1998 Audi A4

2 Answers

My 1995 audi 90 wont stop overheating


It sounds like you have a head gascet fault, if the water hoses are highly presurised with back pressure when car is running and you are lousing water, creamy coloured oil then these are all symptoms.
some audi's have platic water pump fins that deteriorate too this also could be a fault,
A pressure test on the cooling system should conferm what exactily is wrong.

Sep 02, 2009 | 1993 Audi 90

2 Answers

1997 audi A4 heater blowing cold air


You probably have a leak in your oil cooler. This is causing the oil to bleed into your cooling system causing the "thick brown liquid". This in turn will also cause your engine to over-heat since the cooling system is contaminated.

Feb 25, 2009 | 1997 Audi A4

2 Answers

Engine overheating audi 4.2 a8 1999


I would have the cooling fan checked, and have the thermostat changed. An overheated thermostat (overheating caused by something else) will cause problems in the future.

Jan 26, 2009 | 2000 Audi A8

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