Quote:
Originally Posted by 742
These problems can take a surprisingly long time to become evident. In the case of the Passat/A4 1.8T sludge issue it was about 7 years (give or take). It is also interesting that the problems were limited to the North American market.
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interesting. here's some internet forum speculation I've read on the audi forums. these engines only had 4.0 qt capacities, only used dino oil, and had no electric oil pump or cooling for the turbos after the engine gets shut off. All in stark contrast to the bmw setup (7 qts, oil cools turbo after shutdown (I think?), and speciific syn oil).