Audi TT (2007 year). Manual — part 222
21
The belt tensioner retracts the seat belt to the extent
possible, and the inertia-reel seatbelt locks the seat
belt retractor shaft. The seat belt can no longer be
pulled out.
If the occupant's body now accelerates forwards
due to centrifugal force, the belt force limiter allows
the seat belt to unreel as of a certain force.Both
torsion shafts are rotated.
After a defined period of time, the belt force limiter
igniter is activated. The spline end decouples gear II
from gear I.
The belt force is now limited by the seat belt
retractor shaft alone.The occupant can plunge into
the fully inflated airbag.
380_011
Seat belt retractor shaft
Gear I
Torsion shaft II
Spline end
Gear II
380_010
Seat belt retractor shaft
Gear I
Torsion shaft II
Spline end
Gear II
380_016
Detonator
Spline end
Gear II
Gear I
Torsion shaft II
Seat belt
retractor shaft
22
Engine
Engine-gearbox combination
2.0l 4 cyl. TFSI
MQ 350 6F / DQ 250 6F
MQ 350 6A / DQ 250 6A
3.2l VR6 MPI
380_042
380_044
380_045
380_060
380_045
380_060
Reference
For information about the design and
function on the s-tronic, please refer
to Self-Study Programme 386
6-speed Direct Shift Gearbox 02E.
23
The engine number is located at the rear left of the
engine block in the area of the gearbox flange.
Technical features
–
Toothed belt drive with CTC toothed belt
sprocket
–
Selective petrol direct injection system (FSI)
–
Turbocharging
–
Pencil ignition coils
–
1 primary catalytic converter and 1 main catalytic
converter
–
1 primary catalytic converter and 1 post-cat
sensor
Specifications
Engine code
BWA
Type of engine
4-cylinder petrol engine
Displacement
1984 cm
3
Power output
147 kW (200 bhp) at 5100 RPM
Torque
280 Nm at 1800 - 5000 RPM
Bore
82.5 mm
Stroke
92.8 mm
Compression ratio
10.5 : 1
Cylinder spacing
90 mm
Weight
approx. 152 kg
Firing order
1 – 3 – 4 – 2
Engine management
Bosch Motronic MED 9.1
Exhaust gas recirculation
Internal exhaust gas recirculation
Exhaust emission control
1 ceramic pre-catalytic converter with heating function via homogeneous
split dual injection, 1 main catalytic converter
Exhaust emission standard
EU 4 / ULEV
Torque/power curve
Max. torque in Nm
Max. power output in kW
Engine speed in RPM
2.0l TFSI
380_047
380_042
24
Technical features
–
Chain drive on the transmission side
–
Cylinder-selective injection system
–
Fully variable adjustment of both camshafts
–
Pencil ignition coils
–
2 primary catalytic converters and 2 main
catalytic converters
Engine
3.2l VR6 MPI
Specifications
Engine code
BUB
Type of engine
VR6 petrol engine 15° vee angle
Displacement
3,189 cm
3
Power output
184 kW (250 bhp) at 6,300 RPM
Torque
320 Nm from 2500 to 3000 RPM
Bore
84.0 mm
Stroke
95.9 mm
Compression ratio
11.3 : 1
Offset
15°
Firing order
1 – 5 – 3 – 6 – 2 – 4
Engine management
Bosch ME 7.1.1
Camshaft adjustment range
Intake camshaft 52° crank angle
Exhaust camshaft 42° crank angle
Exhaust gas recirculation
Internal exhaust gas recirculation
Exhaust emission control
2 primary catalytic converters and 2 main catalytic converters
Exhaust emission standard
EU 4
Torque/power curve
Max. torque in Nm
Max. power output in kW
Engine speed in RPM
380_046
380_044
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