A substantially refreshed A4 debuted in midyear 2005. It wasn't a total redo, as Audi calls it 60-percent new. Its platform, interior and overall dimensions are basically the same as before. Bold new sheet metal marked the exterior revisions. The updated A4 also boasts a reworked front suspension that picked up numerous components from the high-performance Audi S4. The rear came in for even more revision with links and wheel carriers from the S4 and shock absorbers from the A6. And two new direct-injection gasoline engines reside under the sleek hood. The turbocharged 1.8T was bumped up to 2.0 liters and equipped with direct injection, yielding 200 horsepower. The 3.0-liter V6 was likewise upgraded to 3.2 liters, direct injection and 255 hp. The engines are hooked up to six-speeds, whether you choose the manual or automatic.
2006 Audi A4 A 4 Owners Manual