2009 Alfa Romeo MiTo torque

108GETTING TO KNOW YOUR CAR
VDC SYSTEM
(Vehicle Dynamics Control)
This is an electronic system that controls car stability in the event
of tyre grip loss.
The VDC system also includes the following systems:
❍Hill Holder
❍ASR
❍Brake Assist
❍MSR
❍CBC
❍“ELECTRONIC Q2” (“E-Q2”)
❍DST
SYSTEM INTERVENTION
This is indicated by the áwarning light flashing in the instru-
ment panel: this indicates that the vehicle is in critical stability
and tyre grip conditions.
SYSTEM ACTIVATION
The VDC system switches on automatically each time the engine
is started and cannot be switched off.
HILL HOLDER SYSTEM
This system is an integral part of the VDC system and it is provided
to facilitate starting on slopes.
It is activated automatically in the following instances:
❍uphill: car at a standstill on a road with a gradient higher than
5%, engine running, clutch and brake pedal pressed, gearbox
to neutral or engaged gear other than reverse;
❍downhill: car at a standstill on a road with a gradient higher
than 5%, engine running, clutch and brake pedal pressed and
reverse gear engaged.
At take-off the VDC system control unit will keep brake force on
the wheels until reaching the torque suitable for starting, or in
any case for 1 second in order to move easily from the brake ped-
al to the accelerator pedal.
If the vehicle has not departed after this time, the system will de-
activate automatically by gradually releasing the brake force. A
sound may be heard during this stage: this indicates that the ve-
hicle is about to move off.
IMPORTANT the Hill Holder system should not be used as a hand-
brake. Do not leave the vehicle without having engaged the hand-
brake, switched off the engine and engaged a gear.
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110GETTING TO KNOW YOUR CAR
BRAKE ASSIST
(emergency braking assistance)
This system, which cannot be excluded, recognises emergency brak-
ing (on the basis of the brake pedal operation speed) and allows
the braking system to react more quickly. The Brake Assist function
is deactivated in the event of VDC system failure.
MSR SYSTEM
This is an integral part of the ASR system which, in the event of
sudden gear downshifting, cuts in, providing torque to the engine
thus preventing excessive drive wheel drag which, specially in poor
grip conditions, can lead to loss of stability.
CBC SYSTEM
This function optimises the brake force distribution between the
four wheels (in order to make maximum use of the available grip)
when braking whilst cornering and the ABS system cuts in. This
improves stopping distances and above all vehicle stability when
cornering.
“ELECTRONIC Q2” SYSTEM (“E-Q2”)
The “Electronic Q2” system uses the braking system to create an
effect similar to a limited slip differential.
The front braking circuit, when accelerating around a corner, acts
on the inside wheel to increase the drive to the outside wheel (in-
creased load), dynamically and continuously distributing the torque
between the front drive wheels according to driving and road con-
ditions.
The system, combined with Mc Pherson front suspension, allows
for particularly effective and sporty driving.
DST SYSTEM (Dynamic Steering Torque)
This is an “active” vehicle control system. On road surfaces with
poor grip, it automatically corrects the steering and also controls
over-steer. This system applies torque to the steering wheel to in-
crease the feeling of safety, helping to keep the vehicle under
control and making the effects of the VDC system more discreet.
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STARTING UP AND DRIVING155
3
Electric devices
Use electric devices only for the amount of time needed. The heat-
ed rear windscreen, additional headlights, windscreen wipers and
heater fan require a considerable amount of energy; increasing the
current uptake increases fuel consumption (by up to +25% in an
urban cycle).
Climate control
Using the climate control system increases fuel consumption: use
the air vents when outdoor temperature permits.
Spoilers
The use of non-certified spoilers may adversely affect air drag and
fuel consumption.
DRIVING STYLE
Starting
Do not warm the engine up with the car at a standstill and do not
use excessive engine speeds: the engine warms up very slowly in
these conditions, increasing fuel consumption and emissions. It is
advisable to start off immediately and slowly, keeping the engine
speed down: the engine will warm up much faster this way.
Unnecessar y actions
Avoid revving up when starting at traffic lights or before stopping
the engine. The latter action, like double-declutching, is unneces-
sary and causes increased fuel consumption and pollution.
Gear selection
When traffic and road conditions allow, use a high gear. Using a
low gear for faster acceleration will increase fuel consumption. In
the same way improper use of a high gear increases consump-
tion, emissions and engine wear.
Top speed
Fuel consumption considerably increases as speed increases. Keep
your speed as even as possible, avoiding unnecessary braking
and acceleration which cause excessive fuel consumption and in-
creased emissions.
Acceleration
Sudden acceleration has a very negative effect on fuel consump-
tion and emissions: accelerate gradually and do not go over the
maximum torque ratio.
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TECHNICAL DATA225
6
ENGINE
(*) Only for versions/markets where applicable
(
Õ) The maximum power with 150HP is gotten using unloaded petrol 98 RON
(
❏) The maximum power with 155HP is gotten using unloaded petrol 98 RON
198A1000
Otto
4 in line
72.0 x 84.0
1368
9.8
110
150 (
Õ)
5500
NORMAL DYNAMIC
206 230
21 23.5
2250 3000
NGK IKR9F8
Unleaded petrol
95 RON or 98 RON
(Specification EN228
199A8000
Otto
4 in line
72.0 x 84.0
1368
9.8
114
155 (
❏)
5500
NORMAL DYNAMIC
201 230
20.5 23.5
5000 3000
NGK IKR9F8
Unleaded petrol
95 RON or 98 RON
(Specification EN228
955A1000
Otto
4 in line
72.0 x 84.0
1368
10.8
58
78
5750
120
12.2
4000
NGK ZKR7A-10
Unleaded petrol
95 RON
(Specification EN228)198A4000
Otto
4 in line
72.0 x 84.0
1368
9.8
88
120
5000
206
21
1750
NGK IKR9F8
Unleaded petrol
95 RON
(Specification EN228)
GENERAL1.4 Petrol (*) 1.4 Turbo 1.4 Turbo 1.4 Turbo
Petrol 120HP Petrol 150HP (*) Petrol 155HP
Engine code
Cycle
Number and layout of cylinders
Piston bore and stroke mm
Total displacement cm3
Compression ratio
Maximum power (EEC) kW
HP
corresponding ratio rpm
Maximum torque (EEC) Nm
kgm
corresponding ratio rpm
Spark plugs
Fuel
221-240 Alfa MiTo GB 12-11-2008 15:43 Pagina 225

226TECHNICAL DATA
955A3000
Diesel
4 in line
79.5 x 80.5
1598
16.5
88
120
3750
NORMAL DYNAMIC
280 320
28.5 32.6
1500 1750
–
Diesel fuel for
motor vehicles
(Specification EN590))
(*) Only for versions/markets where applicable
199A3000
Diesel
4 in line
69.6 x 82
1248
17.6
66
90
4000
200
20.4
1750
–
Diesel fuel for
motor vehicles
(Specification EN590)955A4000
Diesel
4 in line
79.5 x 80.5
1598
16.5
85
115
4000
NORMAL DYNAMIC
260 300
26.5 30.6
1500 1500
–
Diesel fuel for
motor vehicles
(Specification EN590)
GENERAL1.3 JTDM1.6 JTDM115HP (*) 1.6 JTDM
120HP
Engine code
Cycle
Number and layout of cylinders
Piston bore and stroke mm
Total displacement cm3
Compression ratio
Maximum power (EEC) kW
HP
corresponding ratio rpm
Maximum torque (EEC) Nm
kgm
corresponding ratio rpm
Spark plugs
Fuel
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