BMW 3 series engine produces 2 HP more power than Audi A4, but torque is 30 NM less than Audi A4.
Fuel consumption
Fuel consumption (l/100km):
9.6
10.6
Real fuel consumption:
10.1 l/100km
11.4 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification BMW 3 series consumes 1 litres less fuel per 100 km than the Audi A4, which means that by driving the BMW 3 series over 15,000 km in a year you can save 150 litres of fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 1.3 litres less fuel per 100 km than the Audi A4.
Fuel tank capacity:
63 litres
63 litres
Full fuel tank distance:
650 km in combined cycle
590 km in combined cycle
880 km on highway
800 km on highway
620 km with real consumption
550 km with real consumption
BMW 3 series gets more mileage on one fuel tank.
Drive type
Wheel drive type:
4x4 - AWD (all-wheel-drive)
4x4 - AWD (all-wheel-drive)
BMW 3 sērija 2005: BMW xDrive is a proactive all-wheel drive system without a center differential that engages before the vehicle becomes destabilized, unnoticed by the driver. Torque is distributed between the axles by an electronically controlled multi-plate clutch in the transfer case. The clutch is partially locked most of the time, distributing power to both axles in a 40/60 front/rear ratio, but the system is capable of sending 100% of the torque to either axle. At high speeds or when parking, for example, the clutch is disengaged and all power is sent to the rear wheels. DSC (Dynamic Stability Control) also brakes the wheels individually to regain traction and assist in cornering.
Audi A4 2004: The vehicle features full-time Quattro IV all-wheel drive with Torsen center differential and electronic traction control that operates at speeds up to 40 km/h and applies brakes to spinning wheels, with the effect of locking the front and rear differential.
Engines
Average engine lifespan:
380'000 km
360'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
7 years
6 years
Engine spread:
Installed on at least 8 other car models, including BMW 5 sērija, BMW X5, BMW 7 sērija, BMW 1 sērija
Used also on Audi A6
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. BMW 3 series might be a better choice in this respect.
Dimensions
Length:
4.52 m
4.59 m
Width:
1.82 m
1.77 m
Height:
1.42 m
1.43 m
BMW 3 series is 7 cm shorter than the Audi A4, 5 cm wider, while the height of BMW 3 series is 1 cm lower.
Trunk capacity:
460 litres
460 litres
Trunk max capacity: with rear seats folded down
no data
720 litres
Turning diameter:
11 meters
11.1 meters
The turning circle of the BMW 3 series is 0.1 metres less than that of the Audi A4.
Audi A4 has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for BMW 3 series, so Audi A4 quality could be a bit better.
