It's a problem on some n/a Audi Q5's with the n/a V6. VW/Audi's next update to the 2.0T will have direct and port injection. Hopefully that will help along with the PCV and EGR revisions that dparm mentioned. Although I don't think it was as bad of a problem in the 2.0T's anyway.
From Car and Driver:
Quote:
The head also incorporates an integrated exhaust manifold with its own cooling circuit, similar to VW’s new EA211 engine series. Like that smaller engine family, the EA888 isolates the coolant in the head to more quickly warm up both the engine and cabin. Engineers also told us that, because they flow through a water-cooled manifold, exhaust gases are 158 degrees cooler by the time they reach the turbocharger. The EA888’s water pump is driven off of the left-side balance shaft, removing an auxiliary from the usually cluttered front end.
Like some Toyota engines, this Audi powerplant family uses both direct and port injection. Direct injection is used to stabilize the idle and in full-load situations, while the port injectors are put to work under partial loads, where Audi engineers say port injection is better at mixing the fuel and air, with less soot produced and reduced CO2 emissions compared to direct injection. Unlike the Toyota setup, this engine operates either as a port-injected engine or a direct-injected one, and never uses both injectors simultaneously. The third-generation EA888 is said to be about 11 pounds lighter than the second gen, despite the wealth of new features.
-Dennis
