Transmission Control Unit 4D0927156AN Quattroholics Sale! from 6900 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. 1997-2001 A8 Transmission Control Unit Audi Part # 4D0927156AN Check your unit to make sure part numbers match exactly Made by Bosch SKU:4D0927156AN Tweet