| 26 version of the engine | 123456 | | Typ | RS6 | 2.0 TDI E | 2.0 TDI | 2.0 TDI CR | 2.7 TDI CR |
| Engine | benz., twin turbo | turbo diesel | turbo diesel | turbo diesel | turbo diesel |
| Type of injection | bezpośredni | Common rail | pompowtryskiwacze | Common rail | Common rail |
| Engine Code | BUH | CAGB | BLB, BRE | CAHA | BPP |
| Years of mounting | 2008-2010 | 2008-2011 | 2004-2008 | 2008-2011 | 2004-2008 |
| Cylinders/valves | V10/40 | R4/16 | R4/16 | R4/16 | V6/24 |
| Displacement [cm³] | 4991 | 1968 | 1968 | 1968 | 2698 |
| Power [kW/PS/RPM] | 426/580/6250 | 100/136/4000 | 103/140/4000 | 125/170/4200 | 132/180/3300 |
| Torque [Nm/RPM] | 650/1500-6250 | 320/1750-2500 | 320/1750-2500 | 350/1750-2500 | 380/1400-3300 |
| Timing gear | łańcuch | pasek | pasek | pasek | łańcuch |
| Particle filter | - | tak (DPF) | tak (DPF) | tak (DPF) | tak (DPF) |
| Gearbox | aut. Tiptronic 6b | manualna 6b | man. 6b/Multitronic | man. 6b/Multitronic | man. 6b/Multitronic |
| Drivetrain | 4x4 (Torsen) | przedni | przedni | przedni | przedni |
| Brakes, front/rear | tarcz. went./t. went. | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. |
| Front suspension | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe |
| Rear suspension | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe |
| Curb weight [kg] | 2025 | 1620 | 1610/1635 | 1635/1660 | 1695/1725 |
| Body dimensions [mm] | 4928/1889/1460 | 4916/1855/1463 | 4916/1855/1463 | 4916/1855/1463 | 4916/1855/1463 |
| Luggage capacity [l] | 560/1660 | 560/1660 | 560/1660 | 560/1660 | 560/1660 |
| Acceleration 0-100km/h (0-62mph) [s] | 4,6 | 10,7 | 10,5/10,4 | 9,2 | 8,3/8,5 |
| Top speed [km/h] | 250 | 204 | 205/201 | 221/214 | 225/220 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 20,4/10,3/14,0 | 7,0/4,3/5,3 | 8,8/5,0/6,4 | 7,5/4,8/5,8 | 10,0/5,6/7,2 |
| Fuel tank capacity [l] | 80 | 70 | 70 | 70 | 70 |
| Ratio kg/PS | 3.49 | 11.91 | 11.5/11.68 | 9.62/9.76 | 9.42/9.58 |