2019 VOLVO S90 TWIN ENGINE tow bar

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WHEELS AND TIRES
568
10. Switch off the compressor and check theinflation pressure using the air pressuregauge. The inflation pressure should bebetween 1.8 bar (22 psi) and 3.5 bar(51 psi). If the inflation pressure is too high,use the air release valve to release air.

WARNING
If pressure falls below 1.8 bar (22 psi), thehole in the tire may be too large. The vehicleshould not be driven. Call roadside assistanceto have the vehicle towed to a workshop forinspection/replacement of the tire. Volvo rec-ommends an authorized workshop.
11. Switch off the compressor and remove theelectrical cable.
12.Unscrew the hose from the tire's valve andscrew the valve cap back on.

NOTE
After inflating a tire, always replace thevalve cap to help prevent valve damagecaused by gravel, dirt, etc.
Use plastic valve caps only. Metal capscould corrode and become difficult toremove.
13. Put the protective hose cover onto the hoseto help prevent leakage of any residual seal-ing compound. Return the equipment to thecargo compartment.
14. Immediately drive the vehicle at least 3 km(2 miles) at a maximum speed of 80 km/h(50 mph) to allow the sealing compound toseal the tire, and then recheck the inflationpressure.
NOTE
During the tire's first revolution, some sealingcompound may spray out of the puncturehole.

WARNING
Before driving away, make sure that no one isnear the vehicle who could be sprayed withsealing compound. Make sure no one iswithin 2 meters(7 feet) of the vehicle.
15.Rechecking the inflation pressure
Connect the hose to the tire's valve andscrew the hose connector onto the valve asfar as possible. The compressor must beswitched off.
16. Check the inflation pressure on the air pres-sure gauge.
If the pressure is under 1.3 bar (19 psi),the tire is not sufficiently sealed. The vehi-cle should not be driven. Call roadsideassistance to have the vehicle towed.
If the inflation pressure is higher than1.3 bar (19 psi), the tire must be inflatedto the inflation pressure specified on thetire pressure decal on the driver's sidedoor pillar (1 bar = 100 kPa = 14.5 psi). Ifthe inflation pressure is too high, use theair release valve to release air.
NOTE
Replace the sealing compound bottle andhose after use. Volvo recommends havingthese replaced by an authorized Volvo work-shop.

WARNING
Check inflation pressure regularly.
Volvo recommends driving to the nearest author-ized Volvo workshop to have the tire replaced/repaired. Inform the workshop that the tire con-tains sealing compound.

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WHEELS AND TIRES
570

Related information
Recommended tire pressure (p. 551)
Using the tire sealing system (p. 565)
Tire sealing system (p. 564)
Determining the vehicle's permittedweight
Properly loading your vehicle will provide maxi-mum return of vehicle design performance.

Weight designations
Before loading your vehicle, familiarize yourselfwith the following terms for determining yourvehicle's weight ratings, with or without a trailer,from the vehicle's Federal/Canadian Motor Vehi-cle Safety Standards (FMVSS/CMVSS) label, andthe vehicle's tire information placard:

Curb weight
The weight of the vehicle including a full tank offuel and all standard equipment. It does notinclude passengers, cargo, or optional equipment.

Capacity weight
All weight added to the curb weight, includingcargo and optional equipment. When towing, tow-bar weight is also part of cargo weight.

Permissible axle weight
The maximum allowable weight that can be car-ried by a single axle (front or rear). These num-bers are shown on the Federal/Canadian MotorVehicle Safety Standards (FMVSS/CMVSS) label.The total load on each axle must never exceed itsmaximum permissible weight.

Gross vehicle weight (GVW)
The vehicle's curb weight + cargo + passengers.
Steps for Determining Correct Load
Limit
1. Locate the statement "the combined weightof occupants and cargo should never exceedXXX kg or XXX lbs." on your vehicle's plac-ard.
2. Determine the combined weight of the driverand passengers that will be riding in yourvehicle.
3. Subtract the combined weight of the driverand passengers from XXX kg or XXX lbs.
4. The resulting figure equals the availableamount of cargo and luggage load capacity.For example, if the "XXX" amount equals1400 lbs. and there will be five 150 lb. pas-sengers in your vehicle, the amount of availa-ble cargo and luggage load capacity is 650lbs. (1400 - 750 (5 × 150) = 650 lbs.)
5. Determine the combined weight of luggageand cargo being loaded on the vehicle. Thatweight may not safely exceed the availablecargo and luggage load capacity calculatedin Step 4.
6. If your vehicle will be towing a trailer, loadfrom your trailer will be transferred to yourvehicle. Consult this manual to determinehow this reduces the available cargo and lug-gage load capacity of your vehicle.

MAINTENANCE AND SERVICE
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* Option/accessory.617

Positions
Fuses 13-17 and 21-36 are "Micro" fuses.
Fuses 1-12, 18-20 and 37 are "MCase"fuses and should only be replaced by a work-
shop18.
FunctionAmpere
Heated rear window30
Central electrical module 40
Pneumatic suspension* com-pressor40
Lock motor for rear seat back-rest, right side15
Electrical outlets in the tunnel
consoleA30A
Lock motor for rear seat back-rest, left side15
Door module right side, rear 20
––
Power trunk release*25
Door module right side, front20
Towbar* control module40
FunctionAmpere
Seat belt tensioner module(right side)40
Internal relay windings5
Door module left side, rear 20
Foot movement detectionmodule for opening the powertrunk release*
5
USB hub/accessory port –
––
Towbar* control module25
Accessory module40
Door module left side, front 20
Seat belt tensioner module(left side)40
Park Assist Camera*5
––
––
––
FunctionAmpere
Feed when ignition is on 10
Control module for airbagsand seat belt tensioners5
CoolerA; Heated/cooled cup
holder (rear)A10A
Heated rear seat (left side)*15
––
Blind Spot Information(BLIS)*; Exterior reverse signalcontrol module
5
––
Modules for seat belt tension-ers5
Emissions system actuator(gasoline, certain engine vari-ants)
5
––
––
18An authorized Volvo workshop is recommended.