Page 589 of 673

MAINTENANCE AND SERVICE
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587
Engine compartment overview
This overview shows some service-related components.
Some of the components included in the vehi- cle's electric drive system are located in theengine compartment. Exercise caution whenaccessing the engine compartment and onlytouch what is required for normal mainte-nance.
WARNING
Orange wiring may only be handled by qualified personnel.
WARNING
A number of electrical components in Twin Engine Plug-in Hybrid vehicles use high-voltage current and can be extremely dan-gerous if handled incorrectly.
Do not touch anything that is not clearly described in this Owner's Man-ual.
Be careful when checking/filling fluidsin the engine compartment.
The layout of the engine compartment may vary depending on model and engine variant.
Coolant expansion tank
Brake fluid reservoir (located on the driv- er's side)
Washer fluid filler pipe 12
Fusebox
Air filter
Engine oil filler pipe
WARNING
Bear in mind that the cooling fan (located at the front of the engine compartmentbehind the radiator) may start or continuerunning automatically up to about6 minutes after the engine is turned off. Always entrust engine washing to a work- shop – an authorized Volvo workshop isrecommended. If the engine is hot, there isa risk of fire.
WARNING
The ignition system works with extremely high and dangerous voltages. The vehicleelectrical system should always be in igni-tion mode
0 when work in being per-
formed in the engine compartment. Do not touch any spark plugs or ignition coils when the vehicle electrical system isin ignition mode II or when the engine is
warm.
Related information
Opening and closing the hood (p. 585)
Filling washer fluid (p. 636)
Refilling coolant (p. 590)
Fuses in the engine compartment (p. 601)
12
Fill the washer fluid at regular intervals, e.g. when refueling.
Page 591 of 673

MAINTENANCE AND SERVICE
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589
a warning symbol is displayed in the instru- ment panel when oil pressure is low
. On
engine variants with an oil level sensor, the
warning symbol in the instrument panel
and display messages are used to alert the driver. Some engine variants have both sys-tems. Contact a Volvo retailer for more infor-mation. Change the engine oil and oil filter according to the schedule specified in the Warranty andMaintenance Records Information booklet.Oils of a higher grade than that specified maybe used. If the vehicle is driven in adverse con-ditions, Volvo recommends using an oil with ahigher grade than that specified.
Related information
Checking and filling engine oil (p. 589)
Engine oil specifications (p. 648)
Checking and filling engine oil
The engine oil level is monitored by an elec- tronic oil level sensor.
Filler pipe 1314
It may be necessary to top up engine oil between regularly scheduled services. No action is necessary with regard to engine oil level until a message appears in the instru-ment panel.
WARNING
If this symbol is shown together with the message Engine oil
level Service required, visit a
workshop – an authorized Volvo
workshop is recommended. The oil level may be too high.
CAUTION
If this symbol is shown together with a message about low oil level, for example
Engine oil
level low Refill 1 liter, fill only
with the indicated volume, e.g. 1 liter (1 quart).
WARNING
Do not spill oil on the hot exhaust pipes as this could cause a fire.
Viewing oil level in the center displayThe oil level can be viewed using the elec- tronic oil level gauge in the center display oncethe vehicle has been started. The oil levelshould be checked regularly.
13 Engines with an electronic oil level sensor do not have a dipstick.
14 The layout of the engine compartment may vary depending on model and engine variant.
Page 659 of 673

INDEX
657
limitations 344
rest stop guidance 343
Driver performance 88 settings 89
Driver profile 133 edit 134, 135, 137
select 134
Driver support system 268 Drive mode 301
Drive systems 420 Driving cooling system 441
with a trailer 444
Driving economy 429
Driving through standing water 434driving with a trailer towball load 646
towing capacity 646
E
Economical driving 429
Electrical outlet 560
use 562
Electrical system 593
Electric drive motor specifications 647
electric motor 420 Range 431
Electric parking brake 408
Electronic immobilizer 247
emergency brake lights 159
Emission inspection readiness 576Energy distribution using map data 426
Engine automatic start and stop of combus-
tion engine 421
overheating 441
start 400
turn off 402
Engine braking 405, 415 Engine compartment coolant 590
engine oil 588
overview 587
Engine drag control 269
Engine oil 588 filling 589
filter 588
grade and volume 648
Engine shutdown 402Engine specifications 647 Engine temperature high 441
Environment 28Ethanol content max. 10% by volume 437
Exterior dimensions 643
Extra heater (Auxiliary heater) 229
F
Federal Clean Air Act 576
Ferry transport 427
Flooded road 434
Fluids, volumes 636, 650
Fluids and oils 649, 650 Fog lights front 157
rear 158
Four-C 427 Front seat blower 218
climate 211
heating 212, 213
temperature 219
ventilation 213