General, Technical

Contact corrosion! - 01J, Continuously Variable Transmission (CVT)
^ Transmission housing of continuously variable automatic transmission Multitronic 01J consists of a magnesium alloy.
^ Bolts and other components which have direct contact with transmission have a surface coating which is matched to magnesium transmission housing.
^ On magnesium transmissions, bolts must always be replaced on following bolted connections: transmission cover to transmission housing and final drive cover to transmission housing.
^ Contact corrosion occurs when incorrect components (bolts, nuts, washers, etc.) are used. The transmission housing will be damaged.
^ Transmission housing, transmission cover and differential cover must all be of same material.
^ If you are not sure whether used parts can be re-installed, always install new parts.

CAUTION!
^ Use only Genuine Audi Parts!
^ Damage resulting from contact corrosion is not covered by the warranty!