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MAINTENANCE AND SERVICE
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573
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. 571)
Filling washer fluid (p. 621)
Refilling coolant (p. 576)
Fuses in the engine compartment (p. 587)
12
Fill the washer fluid at regular intervals, e.g. when refueling.
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MAINTENANCE AND SERVICE
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575
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. 575)
Engine oil specifications (p. 632)
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 643 of 657

INDEX
641
Driver performance 88
settings 89
Driver profile 133 edit 134, 135, 137
select 134
Driver support system 260 Drive mode 293
Drive systems 412 Driving cooling system 433
with a trailer 436
Driving economy 421
Driving through standing water 426driving with a trailer towball load 630
towing capacity 630
E
Economical driving 421
Electrical outlet 552use 554
Electrical system 579Electric drive motor specifications 631
electric motor 412Range 423
Electric parking brake 400
Electronic immobilizer 244
emergency brake lights 159
Emission inspection readiness 562Energy distribution using map data 418
Engine automatic start and stop of combus-
tion engine 413
overheating 433
start 392
turn off 394
Engine braking 397, 407 Engine compartment coolant 576
engine oil 574
overview 573
Engine drag control 261
Engine oil 574 filling 575
filter 574
grade and volume 632
Engine shutdown 394
Engine specifications 631Engine temperature high 433
Environment 28 Ethanol content max. 10% by volume 429
Exterior dimensions 627
Extra heater (Auxiliary heater) 227
F
Federal Clean Air Act 562
Ferry transport 419
Flooded road 426
Fluids, volumes 621, 634
Fluids and oils 633, 634Fog lights front 157
rear 158
Four-C 419 Front seat blower 216
climate 209
heating 210, 211
temperature 217
ventilation 211
Front seat manual 182