brake VOLVO S90 2018 Owner´s Manual

MAINTENANCE AND SERVICE
576
Support battery In addition to the start battery, vehicles equipped with the Start/Stop function also have a supportbattery.
Vehicles with the Start/Stop function are equip- ped with two 12-volt batteries ‒ a heavy-duty
start battery and a support battery that provides extra current during the Start/Stop function'sstart sequence.
The support battery is located in a box next to the spring strut in the engine compartment.
NOTE
• The higher the current consumption in the vehicle, the more the alternator has towork and the batteries have to becharged = increased fuel consumption.
• When the starter battery capacity hasdropped below the lowest permissiblelevel, the Start/Stop function is disen-gaged.
When the Start/Stop function is temporarily reduced due to high current consumption:
• The engine will auto-start, even if the driverdoes not lift their foot from the brake pedal.
The support battery does not normally requiremore service than the start battery. If you have any questions or concerns, consult a workshop ‒
an authorized Volvo workshop is recommended.
CAUTION
If the following is not observed, the Start/ Stop function may temporarily stop workingafter connection of an external starter batteryor battery charger: • The negative battery terminal of the vehi- cle's starter battery must
never be used
to connect an external starter battery orbattery charger – only the vehicle's neg-
ative charging point should be used as
a grounding point.

MAINTENANCE AND SERVICE
580
Fuses in the engine compartment
The fuses in the engine compartment help pro- tect electrical components such as engine andbrake functions.

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MAINTENANCE AND SERVICE
* Option/accessory.
582
FunctionAA
– –
– –
Heated windshield *, left side Shunt
Heated windshield
*, left side 40
Headlight washers
*25
Windshield washer 25
Transmission control module 15
Horn 20
Alarm siren
* 5
Brake system control module (valves, parking brake) 40
Wipers 30
– –
Heated windshield
*, right side 40
– –
Brake system control module (ABS pump) 40
– –
FunctionAA
Heated windshield
*, right side Shunt
Fed when ignition is on: engine control module, transmissioncomponents, electrical powersteering, central electrical mod-ule, brake system control mod-ule 5
– –
Right-side headlight 7.5
– –
– –
Battery connection control mod- ule
5
Airbags 5
Left-side headlight 7.5
Accelerator pedal sensor 5
A
Ampere
Related information
• Fuses and fuseboxes (p. 578)
• Replacing fuses (p. 579)

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MAINTENANCE AND SERVICE
* Option/accessory.
584 Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses. There are also spaces for several extra fuses in the
distribution box in the engine compart-
ment .
Positions
•Fuses 1, 3-21, 23-36, 39-53 and 55-59 are "Micro" fuses.
• Fuses 2-22, 37-38 and 54 are "MCase"fuses and should only be replaced by a work- shop 22
.
FunctionAA
– –
Electrical outlet in tunnel console between rear seats *
– 30
– –
Movement sensor
* 5
Instrument panel 5
Center console buttons 5
FunctionAA
Sun sensor 5
– –
– –
Steering wheel module 5
Module for start knob and parking brake controls 5
Heated steering wheel
* module 15
– –
– –
– –
– –
Climate system control module 10
– –
Data link connector OBD-II 10
Center display 5
Climate system blower module (front) 40
FunctionAA
USB HUB 5
Instrument lighting; Interior lighting; Rearview mirror auto-dim function
*;
Rain and light sensors *; Rear tun-
nel console keypad, rear seat *;
Power front seats *; Rear door con-
trol panels; Climate system blower module left/right 7.5
Control module for driver support functions
5
Panoramic roof with sun curtain
*20
Head-up display
* 5
Passenger compartment lighting 5
– –
Ceiling console display (seat belt reminder/front passenger side air-bag indicator) 5
– –
Humidity sensor 5
Door module in right-side rear door 20
22
An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
}}
* Option/accessory.593
WARNING
•Never use more than one inlay mat at a time on the driver's floor. If any other typeof floor mat is used, remove the originalmat from the driver's seat floor beforedriving. All types of mats must be securelyanchored in the attachment points in thefloor. Make sure the floor mat does notimpede the movement of the brake pedalor accelerator pedal in any way, as thiscould be a serious safety hazard.
• Volvo's floor mats are specially manufac-tured for your vehicle. They must be prop-erly secured in the attachment points inthe floor to help ensure they cannot slideand become trapped under the pedals.
After vacuuming, a specially designed textilecleaning agent should be used to remove stainson floor mats. Floor mats should be cleaned withproducts recommended by Volvo retailers.
Related information
• Cleaning the interior (p. 590)
• Cleaning the center display (p. 590)
• Cleaning fabric upholstery and ceiling liner(p. 592)
• Cleaning the seat belt (p. 592)
• Cleaning leather upholstery (p. 593) •
Cleaning the leather steering wheel(p. 594)
• Cleaning interior plastic, metal and wood sur-faces (p. 595)
Cleaning leather upholstery
Only use cleaning agents and car care products recommended by Volvo. Clean regularly andtreat stains immediately for best results. It isimportant to vacuum before using a cleaningagent.
Leather upholstery *Volvo's leather upholstery is treated to protect its original appearance. Over time, sunlight, grease,dirt, etc. could break down the protective layer.This could result in scratches and cracking. Leather upholstery is a natural product that changes and acquires a beautiful patina overtime. Regular cleaning and treatments arerequired to preserve the qualities and color of theleather. Volvo offers a comprehensive product,Volvo Leather Care Kit/Wipes, for cleaning andtreating leather upholstery that, when used asdirected, preserves the leather's protective coa-ting. For best results, Volvo recommends cleaning and applying protective cream one to four times ayear (or more as needed). Volvo Leather Care Kit951 0251 and Volvo Leather Softener 9437429 are available for purchase at Volvo retailers.

MAINTENANCE AND SERVICE
598
Automatic car washes The vehicle should be washed as soon as it becomes dirty. This makes the vehicle easier toclean because dirt does not attach as strongly. Italso reduces the risk of scratches and keeps thevehicle looking new.
Automatic car washesAn automatic car wash is a fast and easy way to keep your vehicle clean, but it does not reach allareas of the vehicle. For best results, Volvo rec-ommends hand washing your vehicle or supple-menting automatic car washes with a hand wash.
NOTE
Volvo recommends not washing the vehicle in an automatic car wash during the first fewmonths; the paintwork on new vehicles takessome time to fully harden.
CAUTION
Before driving the vehicle into a car wash, deactivate the Automatic Braking when Sta-tionary and Automatic Parking Brake Applica-tion functions. If the functions are not deacti-vated, the brake system will seize when thevehicle is stationary and the vehicle will not beable to roll.
CAUTION
For automatic car washes in which the vehicle is pulled forward on rolling wheels:
1. Before washing the vehicle, make surethat the automatic rain sensor is deacti- vated. If it is not deactivated and inadver-tently starts, the wiper arms could bedamaged.
2. To help prevent damage from the auto- matic car wash machinery, make surethat the door mirrors are folded in, anten-nas retracted or removed, and any auxili-ary lights secured.
3. Drive into the automatic car wash.
4. Turn off the "Automatic Braking when Stationary" function using the switch in the tunnel console.
5. Turn off the "Automatic Parking Brake Application" function in the center dis-play's Top view.
6. Turn off the engine by turning the start knob in the tunnel console clockwise.Hold the knob in position for at least2 seconds.
The vehicle is now ready for the automatic carwash.
Related information
• Cleaning the exterior (p. 595)
• Polishing and waxing (p. 596)
• Hand washing (p. 596)
• High-pressure washing (p. 599)
• Cleaning the wiper blades (p. 599)
• Cleaning exterior plastic, rubber and trim components (p. 600)
• Cleaning rims (p. 601)
• Corrosion protection (p. 601)

SPECIFICATIONS
616
Towing capacity and tongue weightTowing capacity and tongue weight are shown in the tables below.
Category
USA
(lbs)Canada(kg)
Max. trailer weights Without brakes: 1650 750 With brakes:
2000 900
Max. tongue weight 200 90
CAUTION
•The maximum trailer weights listed are only applicable for altitudes up to 3280 ft(1,000 m) above sea level. With increas-ing altitude the engine power and there-fore the car's climbing ability are impairedbecause of the reduced air density, sothe maximum trailer weight has to bereduced accordingly. The weight of thecar and trailer must be reduced by 10%for every further 3280 ft (1,000 m) (orpart thereof).
Related information
•
Type designations (p. 610)
• Weights (p. 615)

SPECIFICATIONS
619
Coolant specifications
Recommended grade: Volvo-recommended
coolant diluted with 50% water. See package. Consult a Volvo retailer if you have any ques-tions. Do not mix different types of antifreeze as this could pose a health risk.
Related information
• Refilling coolant (p. 562)
Transmission fluid specifications
Under normal driving conditions, the transmis- sion fluid will not need to be changed during itsservice life. However, it may need to be changedif the vehicle is driven frequently in adverse driv-ing conditions.
Automatic transmission
Prescribed transmission fluid: AW1
Brake fluid specifications The medium in the hydraulic brake system is called brake fluid and is used to transfer brakingforce from e.g. pressure on the brake pedal via amaster brake cylinder to one or more slave cylin-ders, which in turn act on a mechanical brake.
Recommended grade:
Volvo Original Dot 4
class 6 or equivalent.
NOTE
Changing or filling brake fluid should be entrusted to an authorized Volvo workshop.
Related information
• Engine compartment overview (p. 559)

INDEX
623
1, 2, 3 ...
4WD 413
A
ABSanti-lock brakes 399
AC (Air conditioning) 224
ACC - Adaptive Cruise Control 284, 287, 288, 289, 290, 291, 293, 294, 295, 296, 298
Accessories and extra equipment 35 installation 36
Accessory installation warning 36
Active Bending Lights 157
Adapting driving characteristics 262, 413
Adaptive Cruise Control 284, 287, 288, 289, 290, 291, 293, 294, 295, 296, 298
change cruise control functionality 296
function 284
manage speed 288, 289
pass 293
radar sensor 315
set time interval 290, 291
troubleshooting 295
Adjusting the steering wheel 193
Airbag 52 activation/deactivation 56
driver's side 53
passenger side 53, 56
Air bag, see Airbag 52
Air conditioning 224Air conditioning, fluid volume and grade 620
Air distribution 201 air vents 201, 203
changing 202
defrosting 217
recirculation 216
table showing options 205
Air quality 199, 200 allergy and asthma 200
passenger compartment filter 201
Air recirculation 216
Alarm 257 deactivating 258
Allergy and asthma-inducing substances 200
All Wheel Drive, AWD 413
All Wheel Drive (AWD) 413
All Wheel Drive (four-wheel drive) 413
Android Auto 476, 478 Antenna location 247Apple CarPlay 473, 475
Approach lighting 160
Apps 445
Assistance at risk of collision 361, 362, 363, 364, 365, 366, 367, 369
Audio and media 444Audio system HD digital radio 455 SiriusXM ® Satellite radio 456, 457, 458
Auto-climate 215
Auto hold 405
Auto-hold brakes 405 activate and deactivate 406
after collision 407
Automatic car wash 598 Automatic engine stop auto-stop 418
Automatic high beam 155
Automatic locking 251
Automatic relocking 231, 244
Automatic Speed Limiter 271, 273, 274
Automatic transmission 408 kickdown 412
oil 619
INDEX

INDEX
624
B
Backrestfront seat, adjusting 184, 185, 188, 189 , 190
rear seat, adjusting 192
Battery jump-start 433
Maintenance 573
start 573
support 576
symbols on the battery 577
warning symbols 577
BLIS 337, 338, 339, 340 Blower adjusting 220, 221
air distribution 202
air vents 203
Bluetooth connect 471
connecting vehicle to Internet 489
phone 478
settings 487
Book service and repair 552
Booster cushions 71Brake assist after collision 407
Brake fluidgrade 619
Brake functions 398
Brake light 159
Brakes 399 anti-lock brakes, ABS 399
automatic when stationary 405
Brake Assist System, BAS 400
brake lights 159
brake system 398
emergency brake lights 159
handbrake 401
Maintenance 401
on salted roads 401
on wet roads 400
brake system fluid 619
C
Camera sensor 333
Camera unit 320
Capacity weight 536, 615
Cargo compartment 543
attachment points 545
Car wash 595, 596, 598, 599, 600, 601
Catalytic converter 431 recovery 434
CD player 469
Cell phone, see Phone 479
Center console 539Center display change appearance 129
cleaning 590
climate controls 208
Function view 120
keyboard 124
messages 138, 139, 140
operation 110, 113, 117, 122
overview 107
settings 130, 131, 132
switch off and change volume 129
symbols in status bar 122
views 113
Central locking 247
Change of owner 132
Changing a wheel 522
Checking engine oil level 561
Child restraints 63, 65 booster cushions 71
convertible seats 69
infant seats 67
ISOFIX/LATCH anchors 74
lower attachment points 73