I have a 2001 A6 Quattro 2.7t. Does anyone know where the pcv valve is located? Is it easily accessible?Than ks in advance

 

anyone?

 

Stock 2002 2.7T with 155K KMs

In recent cold weather the PCV System froze up. Internal crank case pressure went too high causing failure of at least one cam shaft seal. On this particular engine, front crank seal also observed leaking along with both valve cover gaskets and both cam adjuster gaskets. All these seals had been replaced at least once already suggesting PCV problems were brewing for awhile. This engine had the original PCV System and original Oil Cap.
Suggestion for those maintaining a higher mileage 2.7T and esp in colder climates, recommend to replace with updated PCV Spider Hose assembly and updated Oil Cap with internal pressure vent. The cost of maintaining effective 2.7T crankcase ventilation is much less than repeated premature oil seal failures.
If your Audi Engine has a Suction Pump, recommend to replace it along with PCV System. IIRC some early 2.7T engines had a Suction Pump, as well as many 1.8T's and 2.8's among other engines.
YMMV


Here's another picture from another site....maybe it will help. This might be the 4.2 engine.

 

So, I figured it was a PCV or CCV but couldn't find any references to the real name or part number for being able to find one. I have a 2000 A8 with the 4.2 and need to replace that part. Anyone know the part number?

 

077103245B


http://www.vagcat.com/epc/cat/au/A8/...56/49/3211983/

 

So where is the pcv valve located on the a6 2.7t?!?

 

PCV valve is Attached to the F hose and one of the ends off the spider breather hose that runs under the left side of the intake manifold. You need to remove the passenger side Diverter Valve to get to it. Remove the F hose from the breather hose and there it is.