BNS Audi BNS
4.2-літровий V8 двигун Audi з безпосереднім впорскуванням пального, відомий своєю потужністю та надійністю, але вимагає регулярного обслуговування.
73
Brand engines
8
Modifications
Technical Specifications
| Engine Displacement | 4.2 L (4,163 cc) |
| Configuration | V8 |
| Number of Cylinders | 8 |
| Valves per Cylinder | 4 |
| Power | 420 л.с. |
| Torque | 430 Н*м |
| Cylinder Bore | 84.50 mm |
| Piston Stroke | 92.80 mm |
| Compression Ratio | 12.5:1 |
| Firing Order | 1-5-4-8-6-3-7-2 |
| Fuel System | Direct Injection |
| Aspiration | Naturally Aspirated |
| Intercooler | No |
| Maximum RPM | 8,250 rpm |
| Max Torque RPM | 5,500 rpm |
| Valve Train | DOHC |
| Timing Drive | Chain |
| Timing Chain Replacement | 250000 or as needed |
| Block Material | Aluminum |
| Head Material | Aluminum |
| Engine Weight | 216 kg |
| Dimensions (L×W×H) | null mm |
| Lubrication System | Dry sump |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | Audi V8 |
| Manufacturing Plant | Győr, Hungary |
| Predecessor | null |
| Successor | BYH |
Maintenance
| Engine Oil Capacity | 9.5 L (with filter: 9.8 L) |
| Recommended Viscosity | 5W-30 |
| Oil Standard | VW 504 00 |
| Recommended Brands | Castrol Edge, Mobil 1, Liqui Moly |
| Oil Change Interval | 15 000 km or 12 mo |
| Oil Filter | 079115561K |
| Air Filter |
079133843A
Replace every 60 000 km |
| Fuel filter | null |
| Cabin Filter | 8E0819439 |
| Spark Plugs |
Type: Iridium Part number: 101905611GGap: 0.8 mm Quantity: 8 pcs Replace every 60 000 km |
| Coolant Capacity | 12 L |
| Coolant Type | G12++ (Audi Coolant) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 87°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 110°C |
| Critical Temperature | 120°C |
| Annual Maintenance Cost | 1000-1500 USD |
Reliability
Expected lifespan: 250 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Carbon buildup on intake valves | Medium | 80000-120000 km | $500-1000 |
| High oil consumption | High | 100000-150000 km | $1000-2000 |
Known defects
- Intake manifold flap issues
- Oil separator failures
Warranty extensions
- null
Tuning potential
Tuning potential: Medium | Max. safe power: 520 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 450 hp | 460 Nm |
ECU remap only Reliability impact: Minimal |
$1000 |
| Stage 2 | 480 hp | 490 Nm |
ECU, Exhaust System Required: Performance exhaust, ECU remap Reliability impact: Low |
$3000 |
| Stage 3 | 500 hp | 510 Nm |
- Required: High-flow air intake, Upgraded fuel injectors, ECU remap Reliability impact: Medium |
$7000 |
Popular modifications
- Cold air intake
- Performance exhaust system
- ECU tuning
Tuning limitations
- Limited by naturally aspirated design
- Cooling system upgrades recommended for track use
Детальні технічні характеристики
6
модифікацій
420–420
к.с.
Спільні характеристики
| Back suspension | Independent, spring |
| Car class | D |
| Clearance | 110 mm |
| Compression ratio | 12.5 |
| Country | Germany |
| Cylinder bore | 84.5 mm |
| Cylinder layout | V-type |
| Engine code | BNS |
| Engine placement | Front, longitudinal |
| Engine type | Gasoline |
| Front brakes | ventilated disc |
| Front suspension | Independent, spring |
| Fuel tank capacity | 63 l |
| Injection type | direct injection (direct) |
| Max speed | 250 km/h |
| Number of cylinders | 8 |
| Number of gear | 6 |
| Pitch Circle Diameter | DIA57.1 5x112 mm |
| Rear brakes | Disc |
| Steering wheel position | Left |
| Stroke cycle | 92.8 mm |
| Timing belt | DOHC |
| Valves per cylinder | 4 |
| Wheel size | 235/40 R19, 255/35 R19, 255/40 R18 |
Модифікації двигуна
4.2 FSI MT quattro (420 hp)
Привід All wheel drive (AWD)
КПП Manual
RS 4 B7
2005–2012
420 hp
engine
Boost type
none
Capacity
4163 cm3
Engine power
420 hp
Max power at RPM
to 7 800 RPM
Max trunk capacity
720 l
Maximum torque
430 N*m
Min trunk capacity
460 l
Turnover of maximum torque
5500 RPM
performance
Acceleration (0-100 km/h)
4.8 s
fuel
City driving fuel consumption per 100 km
19.7 l
Cruising range
from 320 to 620 km
Emission standards
EURO IV
Fuel
98
Highway driving fuel consumption per 100 km
10.1 l
Mixed driving fuel consumption per 100 km
13.7 l
transmission
Drive wheels
All wheel drive (AWD)
Gearbox type
Manual
dimensions
Back track width
1569 mm
Curb weight
1650 kg
Front track width
1559 mm
Full weight
2260 kg
Height
1415 mm
Length
4589 mm
Loading height
682 mm
Number of doors
4
Wheelbase
2648 mm
Width
1816 mm
other
Body type
Sedan
Front track
1559 mm
Front/rear axle load
1250/1150 kg
Number of seater
5
Payload
610 kg
Rear track
1569 mm
Turning circle
11.1 m
4.2 FSI MT quattro (420 hp)
Привід All wheel drive (AWD)
КПП Manual
RS 4 B7
2006–2012
420 hp
engine
Boost type
Turbocharged
Capacity
4163 cm3
Engine model
BNS
Engine power
420 hp
Max power at RPM
to 7 800 RPM
Max trunk capacity
315 l
Maximum torque
430 N*m
Min trunk capacity
246 l
Turnover of maximum torque
5500 RPM
performance
Acceleration (0-100 km/h)
4.9 s
fuel
City driving fuel consumption per 100 km
19.9 l
Cruising range
from 300 to 650 km
Emission standards
EURO IV
Fuel
98
Highway driving fuel consumption per 100 km
10.3 l
Mixed driving fuel consumption per 100 km
13.9 l
transmission
Drive wheels
All wheel drive (AWD)
Gearbox type
Manual
dimensions
Back track width
1518 mm
Curb weight
1855 kg
Front track width
1522 mm
Full weight
2305 kg
Height
1391 mm
Length
4573 mm
Number of doors
2
Wheelbase
2650 mm
Width
1777 mm
other
Body type
Cabriolet
Front track
1559 mm
Number of seater
4
Payload
385 kg
Rear track
1569 mm
Turning circle
11.1 m
4.2 FSI MT quattro (420 hp)
Привід All wheel drive (AWD)
КПП Manual
RS 4 B7
2006–2012
420 hp
engine
Boost type
Turbocharged
Capacity
4165 cm3
Engine model
BNS
Engine power
420 hp
Max power at RPM
to 7 800 RPM
Max trunk capacity
1354 l
Maximum torque
430 N*m
Min trunk capacity
442 l
Turnover of maximum torque
5500 RPM
performance
Acceleration (0-100 km/h)
4.9 s
fuel
City driving fuel consumption per 100 km
20.7 l
CO2 emissions
324 g/km
Cruising range
from 300 to 670 km
Emission standards
Euro 4
Fuel
95
Highway driving fuel consumption per 100 km
9.4 l
Mixed driving fuel consumption per 100 km
13.5 l
transmission
Drive wheels
All wheel drive (AWD)
Gearbox type
Manual
dimensions
Back track width
1569 mm
Curb weight
1710 kg
Front track width
1559 mm
Full weight
2280 kg
Height
1415 mm
Length
4586 mm
Loading height
631 mm
Number of doors
5
Wheelbase
2651 mm
Width
1816 mm
other
Body type
Wagon
Front track
1559 mm
Front/rear axle load
1230/1150 kg
Number of seater
4, 5
Payload
550 kg
Rear track
1569 mm
Turning circle
11.1 m
4.2 MT AWD (420 hp)
Привід All wheel drive (AWD)
КПП Manual
RS 4 B7
2005–2009
420 hp
engine
Boost type
none
Capacity
4163 cm3
Engine power
420 hp
Max power (kW)
309 kW
Max power at RPM
7800 RPM
Max trunk capacity
720 l
Maximum torque
430 N*m
Min trunk capacity
460 l
Turnover of maximum torque
5500 RPM
performance
Acceleration (0-100 km/h)
4.8 s
fuel
City driving fuel consumption per 100 km
19.7 l
Fuel
98
Highway driving fuel consumption per 100 km
10.1 l
Mixed driving fuel consumption per 100 km
13.7 l
transmission
Drive wheels
All wheel drive (AWD)
Gearbox type
Manual
dimensions
Back track width
1569 mm
Curb weight
1650 kg
Front track width
1559 mm
Full weight
2260 kg
Height
1415 mm
Length
4589 mm
Number of doors
4
Wheelbase
2648 mm
Width
1816 mm
other
Body type
Sedan
Number of seater
5
4.2 MT AWD (420 hp)
Привід All wheel drive (AWD)
КПП Manual
RS 4 B7
2005–2009
420 hp
engine
Boost type
Turbocharged
Capacity
4163 cm3
Engine model
BNS
Engine power
420 hp
Max power (kW)
309 kW
Max power at RPM
7800 RPM
Max trunk capacity
1354 l
Maximum torque
430 N*m
Min trunk capacity
442 l
Turnover of maximum torque
5500 RPM
performance
Acceleration (0-100 km/h)
4.9 s
fuel
City driving fuel consumption per 100 km
20.7 l
CO2 emissions
324 g/km
Emission standards
Euro 4
Fuel
95
Highway driving fuel consumption per 100 km
9.4 l
Mixed driving fuel consumption per 100 km
13.5 l
transmission
Drive wheels
All wheel drive (AWD)
Gearbox type
Manual
dimensions
Back track width
1569 mm
Curb weight
1710 kg
Front track width
1559 mm
Full weight
2280 kg
Height
1415 mm
Length
4586 mm
Number of doors
5
Wheelbase
2651 mm
Width
1816 mm
other
Body type
Wagon
Number of seater
4, 5
4.2 MT AWD (420 hp)
Привід All wheel drive (AWD)
КПП Manual
RS 4 B7
2005–2009
420 hp
engine
Boost type
Turbocharged
Capacity
4163 cm3
Engine model
BNS
Engine power
420 hp
Max power (kW)
309 kW
Max power at RPM
7800 RPM
Max trunk capacity
315 l
Maximum torque
430 N*m
Min trunk capacity
246 l
Turnover of maximum torque
5500 RPM
performance
Acceleration (0-100 km/h)
4.9 s
fuel
City driving fuel consumption per 100 km
19.9 l
Fuel
98
Highway driving fuel consumption per 100 km
10.3 l
transmission
Drive wheels
All wheel drive (AWD)
Gearbox type
Manual
dimensions
Back track width
1518 mm
Curb weight
1855 kg
Front track width
1522 mm
Full weight
2305 kg
Height
1391 mm
Length
4573 mm
Number of doors
2
Wheelbase
2650 mm
Width
1777 mm
other
Body type
Cabriolet
Number of seater
4
Cars with the BNS engine
This engine was fitted to 3 models
All modifications (8)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Audi R8 | R8 | V8 4.2 FSI 420 л.с. 6-МКП 4x4 | 420 hp | 6-МКП | 4x4 |
| Audi R8 | R8 | V8 4.2 FSI 420 л.с. 7 S-tronic 4x4 | 420 hp | 7 S-tronic | 4x4 |
| Audi RS 4 | RS 4 (B7) | 4.2 FSI V8 420 л.с. 6-МКП 4x4 | 420 hp | 6-МКП | 4x4 |
| Audi RS 4 | RS 4 (B7) | 4.2 FSI V8 420 л.с. 7-Автомат 4x4 | 420 hp | 7-Автомат | 4x4 |
| Audi RS 4 | RS 4 (B8) | 4.2 FSI V8 450 л.с. 6-МКП 4x4 | 450 hp | 6-МКП | 4x4 |
| Audi RS 4 | RS 4 (B8) | 4.2 FSI V8 450 л.с. 7-Автомат 4x4 | 450 hp | 7-Автомат | 4x4 |
| Audi RS 5 | RS 5 (B8) | 4.2 FSI V8 450 л.с. 7 S-tronic 4x4 | 450 hp | 7 S-tronic | 4x4 |
| Audi RS 5 | RS 5 (B8) | 4.2 FSI V8 450 л.с. 6-МКП 4x4 | 450 hp | 6-МКП | 4x4 |
Interesting Facts
- The BNS engine was used exclusively in the Audi RS4 B7.
- It features a high-revving design with a redline of 8250 RPM.
Applications
Total produced: null
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Audi RS4 | B7 | 2006-2008 | 420hp | Europe, USA, Asia |
Compatible transmissions: 6-speed Manual
Drive types: AWD
Fuel Economy
| Fuel Type | Petrol 98 |
| Octane Rating | Minimum: 95 | Recommended: 98 |
| Consumption (City) | 18 L/100km |
| Consumption (Highway) | 10 L/100km |
| Consumption (Combined) | 13.5 L/100km |
| Real Consumption | 14.5 L/100km |
| Fuel Tank Capacity | 63 L |
| Range | 467 km |
| Cost per 100 km | 20-25 USD |
Emissions Standards
| Emission Standard | Euro 4 |
| CO₂ Emissions | 324 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Awards and Recognition
- Engine of the Year (2007) — Above 4.0L
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| S65 | BMW | 3,999 cc | 414 hp | 400 Nm |
Pros
- High-revving nature
- Distinctive exhaust note
- Strong performance
Cons
- High fuel consumption
- Carbon buildup issues
- Expensive maintenance