Question about 2004 Audi A4

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My Audi A4 has raptured one of the water pipes for the radiator, what could be the cause of this.

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I am of the opinion Audi makes the coolant pipes for the radiator and heater core out of compressed coffee grounds ! Due to components mandated to be bio degradable in Germany...components do just that....bio-degrade while you drive ! Only recourse is new radiator.

If your radiator has already done this, you are a short while from the heater core pipes at the firewall doing the same thing...... Replacement of the heater core is a 16 hour job.

Posted on Nov 02, 2013

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Posted on Jan 02, 2017

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j_del
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SOURCE: Core Support and Radiator Replacement , Audi A4 Quatro 1.8

Very easy - the car is designed to have these parts as being removable for the timing belt service. Opening the car is called the "service position" and involves taking these parts nearly off the car. Use the link below (it's a link to a DIY procedure for doing the timing belt on the car) - it'll show you what to do in order to remove the front clip of the car and remove the core support and radiator.

http://www.audiworld.com/tech/eng35.shtml




Posted on Feb 10, 2009

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SOURCE: coolant leaking on a4 2002 1.8t

If the coolant is droping on top of the trans, then it is the coolant flange located at the back of the engine then it is the coolant flange,like the person above mentioned. I had happen to my A4. The part is like $20 i believe if you get it yourself, plus new coolant, VW kind. Get the flange and a new o-ring do not try to re-use. There is a DIY for it if you google it : http://www.audizine.com/forum/showthread.php?t=84054. I chose to take it to a shop it was 2-3 hours labor. Just make sure they know what they are doing. The spot is a pain in the ***, and if you have big hands don't even think about it. Well worth the pay to a shop!

Posted on Jun 16, 2009

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SOURCE: audi a4 mixing water and oil together hissing,grey/brown foam

That is not true oil and water being mixed can come from many different places. Such as a bad radiator which would cause transmission oil to mix with the water also alot of audi's have a water cooled oil cooler which are a very common cause of oil being mixed with with water. These type of oil coolers are located under you oil filter. They have water lines hooked to them which cools the oil and when they go bad the water and oil will mix. So dont be convinced that its your head gaskets it could be but not as likely. You can pressure test your oil cooler to see if this is the problem just romove it an plug one off the inlet or with rubber plug which can be purchased at you local hardware store (I found mine at ace hardware in there specialty drawers where they have all there bolts) then attach a air hose to the other outlet pressureize the system and place it in a bucket of water. this should tell you if the oil cooler is bad but be careful not to ove3r pressureize the cooler this could damage it and caust it to leak. 15 to 30 psi should be plenty.

Posted on Mar 17, 2010

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