The 2.2L turbo inline-5 (ADU) is an interference engine, so the timing belt is the defining periodic-maintenance item and a documented, recent belt is a buying priority. Parts are the real worry on a low-volume 30-year-old car: owners report Audi Tradition will not ship some parts to North America, and front brake sourcing is complicated by the 304mm vs later 322mm caliper differences. …
The ADU five, timing belt, and parts scarcity
Audi RS2 (Avant) · mechanical