2015 MITSUBISHI LANCER EVOLUTION differential

All-wheel drive system 5-70 Features and controls
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However, if the vehicle does not move or accelerate normally, or if this problem occurs repeatedly, have the vehicle checked by an authorized Mitsubishi Motors dealer or arepair facility of your choice as soon as possi- ble.
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All-wheel drive vehicles are propelled by engine power distributed constantly andappropriately to all four wheels. Not only does this ensure enhanced handling on dry, paved roads but also permits better traction when driving on slippery, wet orsnow-covered roads a
nd when moving out of
mud. These vehicles, however, are not designedfor off-road use, and are unsuitable for driving on bumpy ground that may cause excessive strain.
All-wheel drive vehicles
should be driven only under the same condi-
tions as are suitable for ordinary front-wheel drive vehicles.
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Since driving torque can be applied to all fourwheels, the performance of the vehicle whenoperating in all-wheel drive is greatly affected by the condition of the tires. Pay close attention to the tires. Install specified tires on all wheels. Refer to “Tires and wheels” on page 11-5. Be sure to fit all four tires and wheels of the same size and type. When replacement of any of the tires orwheels is necessary, replace all of them.  All tires should be rotated whenever the wear difference between the front and reartires is recognizable.
Good vehicle performance cannot be expected if there is a difference in wear between tires. Refer to “Tire rotation” onpage 9-18.  Check the tire inflation pressure regularly.
CAUTIONWhen the Twin Clutch SST fluid tempera- ture is high, the engine idle speed when the vehicle is stopped may increase or the vehi- cle will have a weak tendency to creep.After that, if the Twin Clutch SST fluid tem- perature rises even higher, the warning display will appear.
All-wheel drive system
Cautions on handling of all- wheel drive vehicles Tires and wheels
CAUTION Always use tires of the same size, same type, and same brand, and which have no wear dif- ferences. Using tires that differ in size, type, brands or the degree of wear, will increase the differential oil temperature, resulting inpossible damage to the driving system. Fur- ther, the drive train will be subjected to excessive loading, possibly leading to oilleakage, component seizure, or other serious problems.
To w i n g
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S-AWC (Super-All Wheel Control)
Features and controls 5-71
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S-AWC is an integrated vehicle dynamics control system that helps enhance drivingperformance, cornering performance, and vehicle stability over a wide range of driving conditions through integrated management ofthe ACD, the AYC, the anti-lock braking sys- tem, and the active stability control (ASC).
Please read this section in conjunction with the following sections. ACD (Active center differential system)

P.5-71AYC (Active yaw control system)
 P.5-71
Anti-lock braking system
 P.5-74
Active stability control (ASC)
 P.5-76
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The ACD is a system
that improves accelera-
tion performance and straight-ahead stabilityby regulating the differential limiting action
and power drive distribution of the center dif- ferential.
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The AYC is a system, with a left-right differ-ential limiting function and yaw control func-tion, that enhances cornering performance and stability during cornering by controlling the left-right drive power difference of therear wheels, the braking force of all four wheels, and the vehicle yaw moment.
CAUTION Do not tow all-wheel dr
ive vehicles with the
front or rear wheels on the ground (Type A or Type B) as illustrated. This could result in damage to the drivetrain, or unstable towing. If you tow all-wheel drive vehicles, use TypeC or Type D equipment.
Jacking up all-wheel drive vehi- cles
WA R N I N G Do not start or run the engine while the vehicle is on the jack. The jack could slip out of position andresult in an accident.
S-AWC (Super-All Wheel Control)
CAUTION Do not over-rely on the S-AWC. Even the S- AWC cannot prevent the natural laws ofphysics from acting on the vehicle. This sys- tem, like any other system, has limits and cannot help you to maintain traction and con-trol of the vehicle in all circumstances. Reck- less driving can lead to accidents. It is the driver’s responsibility to drive carefully.This means taking into account the traffic, road and environmental conditions. Be sure to use tires that are the same speci- fied size, type, and brand, and have no differ- ence in the amount of wear for all fourwheels. Otherwise,
the S-AWC may not
work properly.
ACD (Active center differential system)
NOTE
 If the parking brake lever is pulled up while the vehicle is moving, the center differential is designed to switch to a free state conditionwhich will allow the rear wheel to lock eas- ier.
AYC (Active yaw control sys- tem)
CAUTION Control of the braking force does not enhance the stopping performance of the vehicle, therefore, pay careful attention to the safety of your surroundings when driv-ing.
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S-AWC (Super-All Wheel Control) 5-72 Features and controls
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The left-right differential limiting function is a function that enhances driving performance and vehicle stability by preventing idle spin-ning of a wheel when driving on slippery road surfaces or when the road surfaces of the left and right wheels are different. The yaw control function is a function that enhances vehicle cornering performance by controlling the drive power difference of theleft and right wheels
and the braking force
when the vehicle does not turn in response to steering input, such as when the steeringwheel is turned quickly or when driving on slippery road surfaces.
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Select the control mode from the followingthree types to suit the driving conditions.
When the ignition switch is set to the “ON” position, operate the AWC switch to change the control mode.Each time the switch is pushed, the control mode changes in the order “TARMAC”

“GRAVEL”
 “SNOW”
 “TARMAC”.
Left-right differential limiting function Yaw control function S-AWC control mode
S-AWC control mode
Operation
TA R M A C
Normally, use this control mode. Use this mode for paved roads.
GRAVEL
Use this control mode when driving on somewhat slipperyroad surfaces, such as wet road surfaces and gravel roads.
SNOW
Use this control mode when driving on slippery road sur-faces, such as snow-covered roads.
S-AWC control mode switch
NOTE
 The control mode can be changed while the vehicle is moving.  The selected control mode is stored in mem- ory even if the engine is stopped. However, if a battery terminal is discon-nected, the control mode stored in memory will be erased and the control mode will be set to the “TARMAC” mode.
S-AWC control mode display Example: “TARMAC” mode is selected.ç
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S-AWC (Super-All Wheel Control)
Features and controls 5-73
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The currently selected control mode is dis- played on the multi-information display. In addition, when the control mode is changed, the selected mode appears on theinterrupt display screen of the information screen in the multi-information display. The control mode display will appear on theinformation screen for a few seconds, and then the original screen will return.
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The S-AWC operation status can be displayedon the information screen in the multi-infor- mation display.To display the status, press the multi-informa- tion meter switch to change the information screen.Refer to “Information screen (when the igni- tion switch is “ON”)” on page 5-96.
The S-AWC operation status is displayed.
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When there is a malfunction in the system, the warning display will appear on the information screen in the multi-information display. In addition, the S-AWC control mode display in section A will go out at the same time.
CAUTION The S-AWC control mode display may flash under aggressive driving conditions. At this time, S-AWC control is temporarily suspended in order to protect the S-AWCdevice, but this will not affect normal driv- ing. After the vehicle is driven for a while, if theS-AWC control mode display remains on, the S-AWC control will start operating again.
S-AWC operation display
Display example AYC operation display The amount of the yaw moment added by AYC is displayed as a bar graph.A, D- Clockwise yaw moment about the
vehicle’s center of gravity
B, C- Counterclockwise yaw moment
about the vehicle’s center of gravity
ACD operation display The strength of the differential limiting action (center differential) of the ACD is displayed in section E of the meter as a bar graph.
WA R N I N G Always concentrate on your driving first. Keep your eyes and mind on the road. Dis- tractions while driving can lead to an acci- dent.
S-AWC warning display
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Anti-lock braking system 5-74 Features and controls
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The anti-lock braking system helps prevent the wheels from locking up when braking.This helps maintain vehicle drivability and steering wheel handling.  Always keep a safe distance from the vehicle in front of you. Even if your vehi-cle is equipped with the anti-lock braking system, leave a greater braking distance when:• Driving on gravel or snow-covered roads. • Driving on uneven road surfaces.  Operation of anti-lock braking system is not restricted to situations where brakes are applied suddenly. This system mayalso prevent the wheels from locking when you drive over manholes, steel roadwork plates, road markings, or anyuneven road surface.  When the anti-lock braking system is in use, you may feel the brake pedal pulsa-tion and the vibrations of the vehicle body and steering wheel. It may also feel as if the pedal resists being pressed.
In this situation, simply hold the brake pedal down firmly. Do not pump the brake, which will result in reduced braking performance. An operation noise is emitted from the engine compartment or feel a shock from the brake pedal when start driving imme-diately after starting the engine. These are normal sound or operation that the anti- lock braking system makes when per-forming a self-check. It does not indicatea malfunction.  The anti-lock braking system can be used after the vehicle has reached a speed overapproximately 6 mph (10 km/h). It stops working when the vehicle slows below approximately 3 mph (5 km/h).
CAUTION The system may be malfunctioning. Park your vehicle in a safe place and stop the engine. Restart the engine and check whether the warning display and “SERVICE REQUIRED” go out. If the warning display and “SERVICE REQUIRED” go out, there is no abnormal condition. If the warning display and “SERVICE REQUIRED” do not go out or appear frequently, it is not necessary to stop the vehicle immediately, but we recommendthat you have your vehicle inspected.NOTE
 If the ambient temperature drops and the vis- cosity of the AWC control fluid increases,the warning may be displayed. At this time, S-AWC control is temporarily suspended, but this will not affect normaldriving. After the vehicle is driven for a while, if the engine is restarted after the AWC controlfluid warms up or the ambient temperature increases, the S-AWC control will start oper- ating again if the warning display goes out.
Anti-lock braking system Driving hints
CAUTION The anti-lock braking system cannot prevent accidents. It is your responsibility to take safety precautions and to drive carefully.  To prevent failure of the anti-lock braking system, be sure all 4 wheels and tires are thesame size and the same type. Do not install any aftermarket limited-slip differential (LSD) on your vehicle. The anti- lock braking system may stop functioningproperly.
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Active stability control (ASC) 5-76 Features and controls
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After driving on snow or icy roads, remove any snow and ice which may have been left around the wheels. On vehicles that have an anti-lock braking system, be careful not todamage the wheel speed sensors (A) or the cables located at each wheel.
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The active stability control (ASC) takes over- all control of the anti-lock braking system, traction control function and skid control function to help maintain the vehicle’s controland traction. Please read
this section in con-
junction with the pages on the anti-lock brak- ing system, traction control function and skid control function. Anti-lock braking system
 P.5-74
Traction control function
 P.5-77
Skid control function
 P.5-77
NOTE
The anti-lock braking system warning light and brake warning light illuminate at the same time and the warning displays appear alternately on the information screen in the multi-information display.
After driving on icy roads Front
Active stability control (ASC) Rear
CAUTION Do not over-rely on the ASC. Even the ASC cannot prevent the natural laws of physics from acting on the vehicl
e. This system, like
any other system, has limits and cannot help you to maintain traction and control of thevehicle in all circumstances. Reckless driv- ing can lead to accidents. It is the driver’s responsibility to drive carefully. This meanstaking into account the traffic, road and envi- ronmental conditions. Be sure to use the same specified type and size of tire on all four wheels. Otherwise, the ASC may not work properly. Do not install any aftermarket limited-slip differential (LSD) on your vehicle. The ASCmay stop functioning properly.NOTE
 An operation noise may be emitted from the engine compartment in the following situa-tions. The sound is associated with checking the operations of the ASC. At this time, you may feel a shock from the brake pedal if youdepress it. These do not indicate a malfunc- tion. • When the ignition switch is set to the “ON” position. • When the vehicle is driven for a while after the engine is turned on.
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Limited-slip differential 5-78 Features and controls
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If an abnormal condition occurs in the sys- tem, the following display/indicator will turn on. Warning display
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A limited-slip differential is applied for front wheel differential. The features of this lim- ited-slip differential are described below: Just as with a conventional differential, the wheel on one side is allowed to turn at a dif-ferent speed from the wheel on the other side when the vehicle is cornering. The difference between the limited-slip differential and aconventional differential is that if the wheel on one side of the vehicle loses traction, a greater amount of torque is applied to thewheel on the other side to improve traction.
 If the ASC OFF switch is continuously pressed after the ASC has been turned OFF or the ASC and the braking control of AYC have been turned off, an erroneous operation prevention function operates and the ASC isautomatically turned ON.
ASC operation display or ASC OFF display
- ASC operation display/ASC indicator The display/indicator will blink when the ASC is operating. - ASC OFF display The display is displayed when the ASC has been deactivated with the “ASC OFF” switch.CAUTION When display/indicator blinks, ASC is operating, which means that the road is slip- pery or that your vehicle’s wheels are begin-ning to slip. If this happens, drive slower.NOTE
NOTE
 The display may come on when you start the engine. This means that the battery volt- age momentarily dropped when the engine was started. It does not indicate a malfunc-tion, provided that the display goes out immediately.  When a compact spare tire has been put on your vehicle, the gripping ability of the tire will be lower, making it more likely that the display/indicator will blink.
ASC warning display
- ASC indicator - ASC OFF display
CAUTION The system may be malfunctioning. Park your vehicle in a safe place and stop the engine. Restart the engine again and check whether the display/indicator goes out. If they go out, there is no abnormal condition.If they do not go out or appear frequently, it is not necessary to stop the vehicle immedi- ately, but you should have your vehicleinspected by an authorized Mitsubishi Motors dealer or a repair facility of your choice as soon as possible.
Limited-slip differential
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Service brake
Features and controls 5-79
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Overuse of the brake can cause poor brake response and premature wear of the brakepads. When driving down a long or steep hill, use engine braking by downshifting.
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Your vehicle is equipped with power brakes for more braking force with minimal brake pedal effort.Your brakes are designe
d to operate at full
capacity, even if the power assist is lost. If the power assist is lost, the effort needed topress the brake pedal is greater. If you lose the power assist for some reason, the brakes will still work. If the power brake unit or either of the two brake hydraulic systems stops working prop-
erly, the rest of the br
ake system will still
work, but the vehicle will not slow down as quickly. You will know this has happened if you findyou need to depress the brake pedal down further, or harder when slowing down or stop- ping, or if the brake
warning light and the
warning display in the multi-information dis- play come on.
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The disc brakes have an alarm that makes ametallic squeal when the brake pads have worn down enough to need service. If youhear this sound continuously, have the brake pads inspected at an authorized Mitsubishi Motors dealer or a repair facility of yourchoice.
NOTE
 Even if there is a difference in the amount of traction the wheels can get, if both of them are spinning, the limited-slip differential will not be effective.CAUTION Never start the engine while one of the front or rear wheels is jacked up and the other in contact with the ground; doing so may cause the vehicle to jump forward. Continuously attempting to extract the vehi- cle from snow, mud, etc. while using highengine rpm may damage the limited-slip dif- ferential. Using a compact spare wheel will adversely affect the limited-slip differential; replace the compact spare wheel with a standard sizewheel as soon as possible.
Service brake Brake pedal
WA R N I N G Do not leave any objects near the brake pedal or let a floor mat slide under it; doing so could prevent the full pedal stroke that would be necessary in an emergency. Make sure that the pedal canbe operated freely at all times. Make sure the floor mat is securely held in place.CAUTION It is important not to drive the vehicle with your foot resting on the brake pedal when braking is not required. This practice can result in very high brake temperatures, pre-mature pad wear, and possible damage to the brakes.
Power brakes
WA R N I N G Never coast downhill with the engine OFF. Keep the engine running whenever your vehicle is in motion. If you turn off the engine while driving, the power brakebooster will stop working and your brakes will not work as well. If the power assist is
lost or if either brake
hydraulic system stops working properly, take your vehicle to an authorized Mit-subishi Motors dealer or a repair facility of your choice immediately.
Brake pad wear alarm
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