brakes Seat Exeo 2013 Owner's manual

Table of Contents
Manual structure . . . . . . . . . . . . . . . . . . . . 5
Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safe driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 7
Proper sitting position for occupants . . . . . . . . . 10
Pedal area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Storing objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 18
Why wear seat belts? . . . . . . . . . . . . . . . . . . . . . . 19
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Seat belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 27
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 28
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Knee airbag* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Side airbags* . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Deactivating airbags . . . . . . . . . . . . . . . . . . . . . . . 44
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 46
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Securing child seats . . . . . . . . . . . . . . . . . . . . . . . 51 Operating instructions
. . . . . . . . . . . . . 57
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Warning and indicator lamps . . . . . . . . . . . . . . . . 65
Driver information system . . . . . . . . . . . . . . . . . . 72
Auto-check system . . . . . . . . . . . . . . . . . . . . . . . . 76
Speed warning*  . . . . . . . . . . . . . . . . . . . . . . . . 83
Onboard computer . . . . . . . . . . . . . . . . . . . . . . . . 86
Menu display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Tyre pressure monitoring* . . . . . . . . . . . . . . . . . . 90
Steering wheel controls . . . . . . . . . . . . . . . . . . . . 92
Multifunction steering wheel* . . . . . . . . . . . . . . . 92
Opening and closing . . . . . . . . . . . . . . . . . . . . . . 97
Remote control keys . . . . . . . . . . . . . . . . . . . . . . . 97
Central locking system . . . . . . . . . . . . . . . . . . . . . 99
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Childproof lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Remote control key . . . . . . . . . . . . . . . . . . . . . . . . 105
Anti-theft alarm system* . . . . . . . . . . . . . . . . . . . 107
Electric windows . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Sliding/tilting sunroof* . . . . . . . . . . . . . . . . . . . . 112
Lights and visibility . . . . . . . . . . . . . . . . . . . . . . . . 115
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Visibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Windscreen wipers . . . . . . . . . . . . . . . . . . . . . . . . 128
Rear vision mirrors . . . . . . . . . . . . . . . . . . . . . . . . 130
Seats and storage . . . . . . . . . . . . . . . . . . . . . . . . . 133
Manual adjustment of the front seats . . . . . . . . . 133
Electric adjustment of front seats* . . . . . . . . . . . 135
Lumbar support* . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Driver seat memory* . . . . . . . . . . . . . . . . . . . . . . . 137 Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Armrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Luggage compartment . . . . . . . . . . . . . . . . . . . . . 142
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Drink holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Ashtray*, cigarette lighter* and electric sockets* . .147
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Starting and stopping the engine . . . . . . . . . . . . 167
Start-Stop function* . . . . . . . . . . . . . . . . . . . . . . . 169
Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Parking aid acoustic system . . . . . . . . . . . . . . . . . 174
Cruise speed* (Cruise control system) . . . . . . . . 176
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Automatic gearbox* . . . . . . . . . . . . . . . . . . . . . . . 180
Practical Tips . . . . . . . . . . . . . . . . . . . . . . . . . 188
Intelligent technology . . . . . . . . . . . . . . . . . . . . . 188
Electronic Stability Control (ESC) . . . . . . . . . . . . . 188
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Power steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Servotronic* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Driving and the environment . . . . . . . . . . . . . . . 194
Running-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Exhaust gas purification system . . . . . . . . . . . . . 195
Economical and environmentally friendly driving 196
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
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Table of Contents

78Cockpit
Red symbols
A red symbol warns of a danger.
Fig. 55 Display: Coolant
level warning
– Stop the vehicle.
– Switch the ignition off.
– Check the fault. Obtain professional assistance if necessary.

BRAKESBrake fluid required or
brake system fault⇒ page 78

COOLANTCoolant level too low / coolant tempera-
ture too high⇒ page 79

OIL PRES-
SUREEngine oil pressure too low⇒ page 79
The red symbols are used to indicate a Priority 1 fault (serious malfunction). A red symbol is accompanied by
three warning chimes. The symbols will
keep flashing until the faults are corrected. If several Priority 1 faults are de-
tected at the same time, the symbols are displayed one after the other for
about 2 seconds. 
Fault in the brake system 
A fault in the brake system should be repaired as soon as
possible.
If the symbol  flashes in the display, there is a fault in the brake
system. One of the following messages will appear in the display
together with the symbol:
Stop vehicle, check brake fluid and hydraulic fluid levels
Warning! Fault in brake system (ABS) Take vehicle to workshop
– Stop the vehicle.
– Check the brake fluid level ⇒ page 237.
If the ABS fails, the ABS control lamp  will light up together with the brake
system fault symbol  ⇒ 
. 

143
Seats and storage
Extending the luggage compartment
The two sections of the backrest can be folded forwards ei-
ther together or separately to increase the capacity of the
luggage compartment.
Fig. 115 Backrest re-
lease lever
Folding the backrest forwards
– Press the release lever A
⇒ Fig. 115 in the direction indicated
by the arrow.
– Fold down the backrest.
Returning the backrest to its upright position
– Push the backrest up until it engages securely ⇒ 
. The red
marking on the tab B should no longer be visible when the
backrest is properly secured.
WARNING
● Make sure that the rear backrest is securely locked in position so that
the seat belt can provide proper protection on the centre rear seat.
● The rear backrest must always be securely latched so that objects
stored in the luggage compartment will not fly forward through the inte-
rior during sudden braking.
CAUTION
When returning the backrest to an upright position, make sure that the seat
belts for the outer rear seats are in their guides, so that they cannot be
caught up and damaged in the catches for the backrest. 
Rear shelf
The rear shelf behind the rear seat backrest can be used to
store light items of clothing.
WARNING
Do not store any heavy or hard objects on the rear shelf. These could
cause injury if the brakes are applied suddenly.
CAUTION
Please note that hard objects could chafe against the wires of the heating
element in the rear window and cause damage.
Note
Make sure that the slots between the rear window and the rear shelf are
kept clear to ensure unimpaired ventilation. 
Safety FirstOperating instructionsPractical TipsTechnical Specifications

173
Driving
Releasing the handbrake
– Pull the lever up slightly and at the same time press in the re-
lease button ⇒ Fig. 142 (arrow).
– Keep the release button pressed and push the lever all the way
down ⇒ 
.
If you drive by mistake with the handbrake still applied, you will hear a
warning buzzer and the display will show the message: Handbrake on
The handbrake warning switches on after driving for 3 seconds at speeds
above 5 km/h.
The handbrake warning lamp  lights up when the handbrake is applied
with the ignition on.
WARNING
Please note that the handbrake should be released all the way. If the
handbrake is only partially released, this will cause the rear brakes to
overheat, which can impair the function of the brake system and could
lead to an accident.
CAUTION
Once the vehicle has come to a standstill, always apply the handbrake firm-
ly and then, on a manual gearbox, engage a gear, or select P on an auto-
matic. Parking
The following points will ensure there is no risk of the vehi-
cle rolling away accidentally after it is parked:
– Use the foot brake to stop the vehicle.
– Apply the handbrake firmly.
– Switch the ignition off.
– On a manual gearbox engage 1st gear or on an automatic move
the selector lever to P ⇒ 
.
When parking on slopes:
Turn the steering wheel so that the, if the vehicle moves, it will do so to-
wards the curb.
WARNING
● Do not leave anyone (especially children) in the vehicle when it is
locked. Locked doors could delay assistance in an emergency, potentially
putting lives at risk.
● Never leave children unsupervised in the vehicle. They could release
e.g. the handbrake or gear lever, moving the vehicle and causing an acci-
dent.

Safety FirstOperating instructionsPractical TipsTechnical Specifications

188Intelligent technology
Practical Tips
Intelligent technology
Electronic Stability Control (ESC)
General Observations
The Electronic Stability Control increases the vehicle's stabil-
ity on the road.
Fig. 153 Centre console
with ESC switch
The ESC is designed to increase the degree of control in situations where
the vehicle approaches the limits of adhesion, especially when accelerating
and cornering. It reduces the risk of skidding and improves stability in all
road conditions. The system is active across the entire speed range. The anti-lock brake system (ABS), the electronic differential lock (EDL) and
the traction control system (ASR) are all integrated into the Electronic Stabil-
ity Control.
How it works
The ESC control unit processes data from the three integrated systems. It al-
so processes additional inputs provided by other high-precision sensors.
These register the vehicle's rotation about the vertical axis (yaw rate), later-
al acceleration, brake pressure and steering wheel angle.
The system uses the steering wheel angle and road speed to calculate the
changes of direction desired by the driver, and constantly compares them
with the actual behaviour of the vehicle. If the desired course is not being
maintained (for instance, if the vehicle is starting to skid), then the ESC
compensates automatically by braking the appropriate wheel.
The forces acting on the braked wheel bring the vehicle back to a stable
condition. If the vehicle
over swerves (tendency of the rear to leave the
road), the brakes will act on the front wheel facing the outside of the bend.
If the vehicle under swerves (tendency to leave the bend), the braking force
is applied to the rear wheel facing the inside of the bend.
The ESC works in conjunction with the ABS ⇒ page 189. If a malfunction
should occur in the ABS, the ESC will also stop working.
Deactivating
The ESC is activated automatically when the engine is started and performs
a self-test routine.
The ESC cannot be deactivated. 

190Intelligent technology
WARNING
Please remember that the accident risk always increases if you drive too
fast, especially in corners or on a slippery road, or if you follow too close
behind the vehicle in front of you. An increased accident risk cannot be
compensated even by the brake assist system. Risk of accident.

Electronic differential lock (EDL)
The electronic differential lock prevents the loss of traction
caused if one wheel starts spinning. General notes
The electronic differential lock (EDL) helps the vehicle to start moving, ac-
celerate and climb a gradient in slippery conditions where this may other-
wise be difficult or even impossible.
How it works
The EDL works automatically, without the driver's involvement. With the aid
of the ABS sensors, the system monitors the rotational speed of the drive
wheels ⇒ page 189. If a considerable difference in revs is detected (approx.
100 rpm) in the speed of the drive wheels, e.g. when only one part of the
surface supporting the wheels is slippery, the system applies the brake to
slow down the skidding wheel so that more of the power is directed to the
other wheels. The systems works up to a speed of approx. 80 km/h. The
system will make noise while it is working.
Starting the vehicle
If one wheel has less grip and starts spinning (for instance, if one of the
drive wheels is on ice), keep pressing the accelerator gradually until the ve-
hicle starts moving. Overheating of the brakes
To prevent the brake disk of the braked wheel from overheating, the EDL
cuts out automatically if subjected to excessive loads. In this case, the vehi-
cle will continue to run and will have the same running properties as those
of another without EDL.
The EDL will switch on again automatically when the brake has cooled
down.
WARNING
● When accelerating on a uniformly slippery surface (for instance all
four wheels on ice or snow), press the accelerator gradually and careful-
ly. Despite EDL, the drive wheels may otherwise start to spin. This could
impair the vehicle's stability. Risk of accident.
● Even with EDL, you should always adjust your speed to suit the road
and traffic conditions. Do not let the extra safety features tempt you into
taking any risks when driving. Failure to do so could result in an accident.
Note
If the ABS warning lamp lights up, this can also mean there is a fault in the
EDL. Take the vehicle to a specialised workshop as soon as possible. 
Traction control system (ASR)
The traction control system prevents the driven wheels from
spinning when the vehicle is accelerating. General notes
The traction control system (ASR) is one of the functions incorporated in the
Electronic Stability Control (ESC) 

192Intelligent technology
Brakes
General notes
New brake pads
New brake pads do not provide optimal performance during the first 200 km
(250 miles); first they must be “run in”. However, the reduced braking ca-
pacity may be compensated by pressing on the brake pedal a little harder.
Avoid overloading the brakes during run-in.
Wear
The rate of wear on the brake pads depends a great deal on how you drive
and the conditions in which the vehicle is operated. Negative factors are, for
instance, city traffic, frequent short trips or hard driving with abrupt starts
and stops.
Wet roads or road salt
In certain conditions, such as in heavy rain, or after washing the vehicle or
driving through water, the full braking effect can be delayed by moisture (or
in winter by ice) on the discs and brake pads. In this case the brakes should
be dried by pressing the brake pedal several times.
The effectiveness of the brakes can also be temporarily reduced if the vehi-
cle is driven for some distance without using the brakes when there is a lot
of salt on the road in winter. In this case, the layer of salt on the brake discs
and pads has to wear off before braking.
Corrosion
There may be a tendency for corrosion to form on the discs and dirt to build
up on the brake pads if the vehicle is used infrequently or the brakes are
not used very often.
If the brakes are not used frequently, or if rust has formed on the disks, it is
advisable to clean off the pads and disks by braking firmly a few times at a
moderately high speed ⇒ 
. Faults in the brake system
If the brake pedal travel should ever increase
suddenly, this may mean that
one of the two brake circuits has failed. Drive immediately to the nearest
specialised workshop and have the fault repaired. Drive there slowly and re-
member that you will have to apply more pressure on the brake pedal and
allow for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if the brake fluid level is too
low. The brake fluid level is monitored electronically.
WARNING
Apply the brakes heavily to clean the brake system only in a suitable traf-
fic situation. Be sure not to inconvenience or endanger other road users.
Risk of accident.
CAUTION
● Never let the brakes “drag” by leaving your foot on the pedal when it is
not necessary to brake. This overheats the brakes, resulting in longer stop-
ping distances and greater wear.
● Before driving down a long, steep gradient, it is advisable to reduce
speed and change to a lower gear (or move the gear lever to a lower gear
position if your vehicle has an automatic gearbox). This makes use of en-
gine braking and prolongs the useful life of the brakes. If you still have to
use the brakes, it is better to brake firmly at intervals than to apply the
brakes continuously.
Note
If you wish to equip the vehicle with accessories such as a front spoiler or
wheel covers, it is important that the flow of air to the front wheels is not
obstructed, otherwise the brakes can overheat. 

194Driving and the environment
Driving and the environment
Running-in Running in a new engine
The engine needs to be run in over the first 1,500 km
(1000 miles).
Up to 1000 kilometres (600 miles)
– Do not drive at speeds of more than 2/3 the maximum speed.
– Do not accelerate hard.
– Avoid high engine revolutions.
– Do not tow a trailer.
From 1000 to 1500 kilometres (600 to 900 miles)
– Speeds can be gradually increased to the maximum road speed
or maximum permissible engine speed (rpm).
During its first few hours of running, the internal friction in the engine is
greater than later on, when all the moving parts have bedded in.
For the sake of the environment
If the engine is run in gently, its life will be increased and its oil consump-
tion reduced. Braking capacity and braking distance
The braking capacity and braking distance are influenced by
driving situations and road conditions.
The efficiency of the brakes depends directly on the
brake pad wear. The
rate of wear of the brake pads depends to a great extent on the conditions
under which the vehicle is operated and the way the vehicle is driven. If you
often drive in town traffic, drive short distances or have a sporty driving
style, we recommend that you have the thickness of your brake pads
checked by a Technical Service more frequently than recommended in the
Service Plan.
If you drive with wet brakes, for example, after crossing areas of water, in
heavy rainfall or even after washing the vehicle, the effect of the brakes is
lessened as the brake discs are wet or even frozen (in winter). In this case
the brakes should be dried by pressing the brake pedal several times.
WARNING
Longer braking distances and faults in the brake system increase the risk
of accidents.
● New brake pads must be run in and do not have the correct friction
during the first 200 km (120 miles). However, the reduced braking ca-
pacity may be compensated by pressing on the brake pedal a little hard-
er. This also applies when the brake pads have to be changed further on.
● If brakes are wet or frozen, or if you are driving on roads which have
been salted, braking power may be lower than normal. 

195
Driving and the environment
WARNING (Continued)
● On steep slopes, if brakes are excessively used, they will overheat.
Before driving down a long steep slope, it is advisable to reduce speed
and change down into a lower gear or range (depending on the type of
transmission). This makes use of engine braking and relieves the brakes.
● Never let the brakes “drag” by applying light pressure. Continuous
braking will cause the brakes to overheat and the braking distance will
increase. Apply and then release the brakes alternately.
● Never let the vehicle run with the engine switched off. The braking
distance is increased considerably when the brake servo is not active.
● If the brake fluid loses its viscosity and is subjected to heavy use, va-
pour bubbles can form in the brake system. This reduces the efficiency of
the brakes.
● Non-standard or damaged front spoilers could restrict the airflow to
the brakes and cause them to overheat. Before purchasing accessories
please observe the relevant instructions ⇒ page 222, Technical modifi-
cations.
● If a brake system circuit fails, the braking distance will be increased
considerably. Contact a specialised workshop immediately and avoid un-
necessary journeys.

Exhaust gas purification system Catalytic converter*
To maintain the useful life of the catalytic converter
– Use only unleaded petrol with petrol engines, as lead damages
the catalytic converter.
– Do not let the fuel get too low in the tank. –
For engine oil changes, do not replenish with too much engine
oil ⇒ page 231.
– Never tow the vehicle to start it, use jump leads if necessary
⇒ page 286.
If you notice misfiring, uneven running or loss of power when the vehicle is
moving, reduce speed immediately and have the vehicle inspected at the
nearest specialised workshop. In general, the exhaust gas warning lamp
will light up when any of the described symptoms occur ⇒ page 66. If this
happens, unburnt fuel can enter the exhaust system and escape into the en-
vironment. The catalytic converter can also be damaged by overheating.
WARNING
The catalytic converter reaches very high temperatures! Risk of fire!
● Never park where the catalytic converter could come into contact with
dry grass or flammable materials under the vehicle.
● Do not apply additional underseal or anti-corrosion coatings to the
exhaust pipes, catalytic converter or the heat shields on the exhaust sys-
tem. These materials could catch fire when the vehicle is being driven.
CAUTION
Never run the fuel tank completely dry because the irregularity of the fuel
supply may cause ignition problems. This allows unburnt fuel to enter the
exhaust system, which could cause overheating and damage the catalytic
converter.
For the sake of the environment
Even when the emission control system is working perfectly, there may be a
smell of sulphur from the exhaust gas under some conditions. This depends
on the sulphur content of the fuel used. Quite often the problem can be
solved by changing to another brand of fuel. 
Safety FirstOperating instructionsPractical TipsTechnical Specifications

196Driving and the environment
Diesel engine particulate filter*
The diesel engine particulate filter eliminates soot produced
by burning diesel.
The diesel engine particulate filter eliminates most of the soot from the ex-
haust gas system. Under normal driving conditions, the filter cleans itself. If
the driving conditions do not allow the filter to clean itself (for example,
multiple short trips) the filter will be obstructed by dust and pollen and the
warning lamp  for the diesel engine particulate filter will light up. This
does not represent a fault, it is a warning that indicates that the filter has
not been able to regenerate automatically and that you must carry out a
cleaning cycle, as indicated in ⇒ page 81.
WARNING
● The diesel engine particulate filter may reach extremely high temper-
atures; the vehicle should be parked so that the exhaust pipe does not
come into contact with flammable materials underneath the vehicle. Oth-
erwise there is a risk of fire.
CAUTION
● Your vehicle is not designed to use biodiesel fuel. Never, under any cir-
cumstances refuel with biodiesel. The use of biodiesel fuel could damage
the engine and the fuel system. The addition of biodiesel to diesel by the
diesel producer in accordance with standard EN 590 is authorised and will
not cause damage to the engine or the fuel system.
● Using diesel fuel with a high sulphur content may significantly reduce
the useful life of the diesel particulate filter. Your Technical Service will be
able to tell you which countries have diesel with a high sulphur content. Economical and environmentally friendly
driving
Economical and environmentally friendly driving
Fuel consumption, environmental pollution and wear to the engine, brakes
and tyres depends in large part on your driving style. By adopting an eco-
nomical driving style and anticipating the traffic situation ahead, you can
easily reduce fuel consumption by 10-15%. Some tips on how to help you
reduce pollution while saving money are listed below.
Drive anticipating the traffic situation
A vehicle uses most fuel when accelerating. When you anticipate the situa-
tion, you have to brake less often and, thus, accelerate less. If it is possible,
let the vehicle roll with a
gear engaged, for example, if you see a red light
ahead. The braking effect achieved in this way helps to reduce the wear of
brakes and tyres; emissions and fuel consumption are reduced to zero (dis-
connection due to inertia).
Change gear early to save energy
An effective way of saving fuel is to change up quickly through the gears.
Running the engine at high rpm in the lower gears uses an unnecessary
amount of fuel.
Manual gearbox: Change from first to second gear as quickly as possible.
We recommend that, whenever possible, you change to a higher gear upon
reaching 2000 rpm. Follow the “recommended gear” indication that ap-
pears on the instrument panel ⇒ page 74.
Avoid driving at high speed
We advise you not to drive at the top speed permitted by the vehicle. Fuel
consumption, exhaust emissions and noise levels all increase very rapidly
at higher speeds. Driving at moderate speeds will help to save fuel. 