Audi A4 engine produces 2 HP less power than BMW 3 series, but torque is 30 NM more than BMW 3 series.
Fuel consumption
Fuel consumption (l/100km):
10.7
10.0
Real fuel consumption:
11.1 l/100km
10.5 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification Audi A4 consumes 0.7 litres more fuel per 100 km than the BMW 3 series, which means that if you drive 15,000 km in a year, the Audi A4 could require 105 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A4 consumes 0.6 litres more fuel per 100 km than the BMW 3 series.
Fuel tank capacity:
63 litres
63 litres
Full fuel tank distance:
580 km in combined cycle
630 km in combined cycle
790 km on highway
820 km on highway
560 km with real consumption
600 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)
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.
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.
Engines
Average engine lifespan:
360'000 km
380'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
6 years
7 years
Engine spread:
Used also on Audi A6
Installed on at least 8 other car models, including BMW 5 sērija, BMW X5, BMW 7 sērija, BMW 1 sērija
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:
4.59 m
4.52 m
Width:
1.77 m
1.82 m
Height:
1.43 m
1.44 m
Audi A4 is 7 cm longer than the BMW 3 series, 5 cm narrower, while the height of Audi A4 is 1 cm lower.
Trunk capacity:
442 litres
460 litres
Trunk max capacity: with rear seats folded down
no data
1385 litres
Despite its longer length, Audi A4 has 18 litres less trunk space than the BMW 3 series. This could mean that the Audi A4 uses more space in the cabin, so the driver and passengers could be more spacious and comfortable.
Turning diameter:
11.1 meters
11 meters
The turning circle of the Audi A4 is 0.1 metres more than that of the BMW 3 series.
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.
