Question about 2001 Audi A6

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Audi a6 overheating the water pumb was replace a year ago the car is not liking any where the car starts to over heat and when i put the heater on the tempeture neddle stay in the midle but soon *** u turn it off the car start to over heat????? the other problem that it has when u are at a light or a stop or in idole the car vibrates can u please help let me know what would it be >>???? dont have a job so i cant take it to the dealer anymore;( thankyou

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Two issues:
One is check the fan clutch to make sure that the fan is turning on to cool the engine, also it is recommended since it overheated to change the thermostat.

2nd. This sounds like a MAF (Mass Air Flow Sensor Valve) or a EGR Valve, if you have a check engine light on, take it to your local parts store and they will scan it for you at least sending you in the right direction.

Posted on May 19, 2011

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Audi A6 2001 quattro 2.8 mysterious over heating


Yes, replace the thermostat. Then you need to 'burp the coolant system'. Your car has all the hallmarks of air in the system, especially a heater that is cold. This is because there is no water in the heater matrix. This is why it overheats. The system must be full and with no air to circulate correctly through the radiator.

Burping involves the following steps.

Remove the lid to the reservoir, remove the radiator cap, fill the radiator to the top, turn heating on full blast, start engine and get to operating temperature, keep topping up. Squeezing the radiator hoses helps. The level will rise and then drop when the thermostat opens. Top up when bubbles stop and the level becomes constant. Put radiator cap on, top up the reservoir and put the cap on that.

check the link



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1 Answer

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It could be the thermostat or the water pump. Even if your heater core were plugged, the engine would not overheat from it, you would just have no heat. And if the thermostat were stuck closed, but the heater core was good, you would still get heat from heater while the engine was overheating. So it kind of points toward the water pump, unless neglect had allowed both the heater core to plug and the thermostat to stick closed. I mean neglect from not regularly changing the coolant every two years about.
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My 1999 Audi a6 started overheating so I took the radiator cap of but the engine was still hot so antifreeze went everywhere so I filled it with water. I got in the car and the heat in the car wasnt...


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http://farm3.static.flickr.com/2456/4026320040_32ef32e2d2_m.jpg

Copy and paste that into the browser. If you're near upstate NY, reply here with contact email address - I can do the job for you.

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1 Answer

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1 Answer

Audi a6 heaters not given out hot air


this is more than likely a problem with your thermostat in the cooling system .heres a few things to check to be sure make certain your blower fan is on high and temp setting is in the hottest setting check to see if   air is coming from your heater ducts  also be sure to thoroughly let the engine warm up 10 to 20 minutes  before checking. if the air is blowing but  luke warm still your thermostat is stuck in the open position  and will cause the engine to run to cold and performance will also suffer as will your heat will not be sufficient  to heat the passenger compartment  this repair should cost no more than $150 max to replace buy a repair shop    this is a  common problem in older cars and this is generally   a quick  repair to be made  for almost any repair facility  should take under 45 minutes to complete once repair is started     

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