Page 609 of 693

MAINTENANCE AND SERVICE
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607
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. 605)
Filling washer fluid (p. 656)
Refilling coolant (p. 610)
Fuses in the engine compartment (p. 621)
12
Fill the washer fluid at regular intervals, e.g. when refueling.
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MAINTENANCE AND SERVICE
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609
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. 609)
Engine oil specifications (p. 669)
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 679 of 693

INDEX
677
Drive mode 433
changing 438
driver support 314
Driver Alert Control 355 activating/deactivating 356
limitations 357
rest stop guidance 356
Driver performance 94 settings 95
Driver profile 139 edit 140, 141, 143
select 140
Driver support system 280 Drive mode 314
Drive systems 432 Driving cooling system 458
with a trailer 465
Driving economy 446
Driving through standing water 451 driving with a trailer towball load 667
towing capacity 667
E
Economical driving 446
Electrical outlet 580use 582
Electrical system 613Electric drive motor specifications 668
electric motor 432 Range 448
Electric parking brake 421
Electronic immobilizer 259
emergency brake lights 164
Emission inspection readiness 596Energy distribution using map data 439
Engine automatic start and stop of combus-
tion engine 433
overheating 458
start 412
turn off 414
Engine braking 417, 428, 445 Engine compartment coolant 610
engine oil 608
overview 607
Engine drag control 281
Engine oil 608 filling 609
filter 608
grade and volume 669
Engine shutdown 414
Engine specifications 668Engine temperature high 458
Environment 30Ethanol content max. 10% by volume 454
Exterior dimensions 663
Extra heater (Auxiliary heater) 240
F
Federal Clean Air Act 596
Ferry transport 440
Flooded road 451
Fluids, volumes 656, 671
Fluids and oils 670, 671 Fog lights rear 163
Four-C 440