2016 VOLVO XC70 cooling

10 Maintenance and servicing
10
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* Option/accessory, for more information, see Introduction.331
Left: digital instrument panel*, Right: analog instrument panel
Message
Oil level
The oil level can be checked when the engine is not running by scrolling to the oil level sen-sor using the thumb wheel on the left steeringwheel lever.
CAUTION
• If Oil service required is displayed,
the oil level may be too high. Take the vehicle to an authorized Volvo work-shop as soon as possible.
• If the oil level sensor indicates that thelevel is too low, using the correct oil,top up with the amount of oil indicatedas soon as possible, see oil specifica-tions (p. 374).
WARNING
Do not allow oil to spill onto or come into contact with hot exhaust pipe surfaces.
Electronically checking the oil levelThe oil level should be checked at regular intervals, particularly during the period up tothe first scheduled maintenance service. To check the oil level:
1. Activate ignition mode
II, see Ignition
modes (p. 79).
2. Turn the thumb wheel on the left steering wheel lever until
Oil level is displayed.
> The oil level will be displayed.
NOTE
• The system cannot detect changes in the oil level immediately. The vehiclemust be driven approximately 20 miles(30 km) or have been parked on levelground with the engine off for5 minutes before the oil level readingwill be correct.
• If the necessary conditions are not metfor checking the oil level electronically(time interval after the engine wasswitched off, if the vehicle is parked on an incline, etc.),
No values availablewill be displayed. This does
not indi-
cate a problem with the oil level sen- sor.
Engine compartment – coolant
Normally, the coolant does not need to be changed. If the system must be drained, con-sult a trained and qualified Volvo service tech-nician.
Level check and filling
Location of the coolant reservoir
See Fuel tank volume – specification and vol- ume (p. 377) for information on cooling sys-tem capacities.

10 Maintenance and servicing
10
332
CAUTION
•If necessary, top up the cooling sys- tem with Volvo Genuine Coolant/Anti-freeze only (a 50/50 mix of water andantifreeze).
• Different types of antifreeze/coolantmay not be mixed.
• If the cooling system is drained, itshould be flushed with clean water orpremixed anti-freeze before it is refilledwith the correct mixture of water/anti-freeze.
• The cooling system must always bekept filled to the correct level, and thelevel must be between the
MIN and
MAX marks. If it is not kept filled, there
can be high local temperatures in theengine which could result in damage.Check coolant regularly!
• Do not top up with water only. Thisreduces the rust-protective and anti-freeze qualities of the coolant and hasa lower boiling point. It can also causedamage to the cooling system if itshould freeze.
• Do not use chlorinated tap water in thevehicle's cooling system.
WARNING
•Never remove the expansion tank cap while the engine is warm. Wait until theengine cools.
• If it is necessary to top off the coolantwhen the engine is warm, unscrew theexpansion tank cap slowly so that theoverpressure dissipates.
Engine compartment – brake fluid
The brake fluid should always be between the MIN
and MAX marks on the inside of the res-
ervoir.
Location of the brake fluid reservoir

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10 Maintenance and servicing
10
352* Option/accessory, for more information, see Introduction.
PosFunctionA
Auxiliary lights*20
Horn15
Relay coils, Engine Control Module (ECM)10
Control module - auto- matic transmission15
A/C compressor (not 4-cyl. engines)15
Relay-coils A/C, relay coils in engine com-partment cold zone forStart/Stop5
Starter motor relay A30
Engine control module (4-cyl. engines) Ignition coils (5-/6-cyl. engines), condenser(6-cyl. engines)20
Engine Control Module (4-cyl. engines)20
Engine Control Module (5-cyl. & 6-cyl. engines)10
PosFunctionA
4-cyl. engines: mass air meter, thermostat,EVAP valve10
5-/6-cyl. engines: Injection system, massair meter (6-cyl.engines only), enginecontrol module15
A/C compressor (5-/6- cyl. engines), enginevalves, engine controlmodule (6-cyl.engines), solenoids (6-cyl. non-turbo only),mass air meter (6-cyl.only), oil level sensor(5-cyl. only)10
Engine valves/oil pump/center heatedoxygen sensor (4-cyl.engines)15
Front/rear heated oxy- gen sensors (4-cyl.engines), EVAP valve(5-/6-cyl. engines),heated oxygen sensors(5-/6-cyl. engines)15
PosFunctionA
Oil pump/crankcase ventilation heater/cool-ant pump (5-cyl.engines)10
Ignition coils (4-cyl. engines)15
Fuel leakage detection (5-/6-cyl. engines),control module forradiator shutter (5-cyl.engines)5
Fuel leakage detection, A/C solenoid (4-cyl.engines)7.5
Coolant pump (4-cyl. engines)50
Cooling fan60 (4/5- cyl.engines)
80 (6-cyl. engines)
Power steering100
A
This position is not used on vehicles with the optional Start/Stop function, refer to the table "Engine compart-ment cold zone" in Fuses – engine compartment cold zone(Start/Stop only) (p. 358).

12 Index
12
385
Central locking system, introduction 152,
153, 156, 159
Chains...................................................... 304
Check Engine warning light....................... 73Child restraints recalls and registration......................... 47
Child restraint systems.............................. 47 booster cushions.................................. 53
convertible seats.................................. 51
infant seats........................................... 49
ISOFIX/LATCH anchors........................ 54
top tether anchors................................ 56
Child safety................................................ 45 booster cushions.................................. 53
child restraint systems.......................... 47
convertible seats.................................. 51
infant seats........................................... 49
Child safety locks...................................... 61
City safety........................................ 202, 203
Climate system........................................ 132 air distribution..................... 126, 133, 135
air vents.............................................. 126
Interior Air Quality System.................. 125
introduction......................................... 124
passenger compartment filter............ 125
refrigerant........................................... 124
Clock, setting............................................. 78
Cold weather driving................................ 274 Collision warning system.. 209, 211, 214,
215, 217, 218
Compass in rearview mirror..................... 105
Connected service booking..................... 325
Conserving electrical current................... 273
Convertible seats....................................... 51
Coolant............................................ 331, 376
Cooling system, general information....... 273
Courtesy lighting........................................ 96
Crash event data....................................... 18
Crash mode......................................... 44, 45
Cruise control.................................. 181, 183 adaptive.............................................. 184
Curb weight............................................. 301
Current, conserving................................. 273
Cyclist detection.............................. 213, 217
D
Daytime running lights............................... 89
Defroster.................................................. 132
Detachable key blade...................... 157, 158Dimensions XC70................................................... 370 Disconnecting the front passenger’s air-
bag............................................................. 36
Distance Alert.......................................... 198
Dome lighting............................................. 96
Door mirrors..................................... 102, 103
Driver alert....................... 222, 223, 224, 225
Lane Departure Warning..... 227, 229, 230
Driver distraction warning.......................... 23
Driving economically................................ 279
Driving in cold weather............................ 274
Driving through water.............................. 272
E
ECC......................................... 129, 130, 131
Eco (driving function)............................... 261
Eco coast................................................. 261
Eco guide................................................... 71
Economical driving.................................. 279
Electrically heated steering wheel............. 88
Electrical sockets..................................... 140
Electric parking brake...... 268, 269, 270, 271
Electronic Climate Control............... 128, 131 air distribution table............................ 135