Audi a4 2000 cold temp

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.

You need to check for tow things first check oil level and its reapilty second you need to check oil volve and oil pump

Extreme cold weather is causing coolant to contract and fluid level is reading low level ... After starting with the engine warm the temp light should go off due to expansion of the coolant ... Solution: Add a small amount of coolant to compensate for cold weather contraction. Good luck!

Check your oil level or oil press. sensor. it's either on the side of the block or in the side of the oil pan.

The oil level is probably too low, get an oil change, not only will they fill up your oil and change the filter, but if something is more seriously wrong they will bring it to your attention.
Plus an oil change is cheap insurance.

hi tina
it might be a few things unfortunatly, 77k is not much for these cars but allot can go wrong with them, i can start with, valve guid seals these tend to wear arround 100,000 but deppends on use, wether hard driving or town, so you could be getting close to these, you can also check visually if there is another leak from the valve cover on the rear side or this might just be ressidue from the previouse leak, sometimes the smell of unburnt fuel can fill the car if the wind is blowing in opposite direction when standing still can fill the cab with fumes dont worry only minor, it possibly is the cold air rather than smoke condensation from the exhaust is warm and hitting cold air will do that, it dosent realy sound drastic and just keep an eye on the fluid levels as you are doing but i dont think there is much to be concerned about....hope this helps

check oil level,make sure oil is not too thick,eg;is temp cold when starting? rattles when cold?

try replacing oil preasure switch, if light still comes on then have oil preasure checked , (when cold) may need oil pump if presure is low, if you caught problem early you wont do any engine damage, again start with the switch .hope this helps.

How many miles? One thing is with diesel engines the glow plugs do come back on till engine hits a low warm temp when it's cold out. You may see the light come one once or twice after it's first started.

Changing the computer doesn't sound right. Most likely a bad oil temp sensor. Make sure you are using the recommended weight (synthetic) oil.