Volvo XC40 Recharge Plug-in Hybrid (2021 year). Manual in english — page 35
MAINTENANCE AND SERVICE
604
Coolant
The coolant ensures that surplus heat is dis-
tributed in the circuit, e.g. in order to heat the
starter battery or provide heat for the passen-
ger compartment.
Only coolant approved by Volvo should be
used in order to prevent impairment of the
cooling system, engine problems, etc.
Prescribed grade:
Ready-mixed coolant
approved by Volvo. If concentrated coolant is
used, mix with 50% water (of approved water
quality, not salt water, etc.). Consult a Volvo
dealer if unsure.
Only coolant approved by Volvo should be
used in order to prevent impairment of the
cooling system, engine problems, etc.
WARNING
Swallowing coolant is hazardous, it may
cause damage to organs (kidneys). The
product contains ethylene glycol, inhibitor,
water, etc.
Related information
•
Topping up coolant
When topping up the coolant, follow the
instructions on the packaging. Never top up
with water only. The risk of freezing increases
with both too little and too much coolant con-
centrate.
If there is coolant under the car, if there is
coolant smoke, or if more than 2 litres (approx.
2 quarts) have been filled, always call for
recovery to avoid the risk of engine damage
due to a defective cooling system when
attempting to start the car.
WARNING
The coolant may be very hot. Never open
the cap when the coolant is hot. If a top-up
is required, unscrew the expansion tank
cap slowly to allow any overpressure to
disappear.
Coolant expansion tank
–
Screw off the cap and top up with coolant
if necessary. The coolant level must not
exceed the
MAX
mark outside the expan-
sion tank.
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MAINTENANCE AND SERVICE
605
•
Harmful if ingested. May cause organ
(kidney) damage.
•
Use ready-mixed coolant as recom-
mended by Volvo. If concentrated liq-
uid is used, make sure that the ratio is
50 % coolant to 50 % water of an
approved quality.
•
Do not mix different coolants.
•
Only new coolant should be used
when replacing major cooling system
components to ensure the system has
sufficient corrosion protection.
•
The engine must only be run with a
well-filled cooling system. Otherwise,
temperatures that are too high may
occur resulting in the risk of damage
(cracks) in the cylinder head.
•
A high content of chlorine, chlorides
and other salts may cause corrosion in
the cooling system.
Related information
•
Engine compartment overview (p. 600)
•
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MAINTENANCE AND SERVICE
606
Starter battery
The starter battery is used to start up the
electrical system and drive electrical equip-
ment in the car. The hybrid battery is used
when the internal combustion engine is
started.
The electrical system is single-pole and uses
the chassis and engine casing as a conductor.
The starter battery is a 12 V AGM battery
(Absorbed Glass Mat), designed for regenera-
tive charging, and to support the functionality
of the car's different systems.
The service life and function of the starter bat-
tery is influenced by factors such as the num-
ber of starts, discharging, driving style, driving
conditions, climatic conditions etc.
•
Never disconnect the starter battery when
the engine is running.
•
Check that the cables to the starter bat-
tery are correctly connected and properly
tightened.
WARNING
•
The battery can generate oxyhydrogen
gas, which is highly explosive. A spark
can be formed if a jump lead is con-
nected incorrectly, and this can be
enough for the battery to explode.
•
Do not connect the jump leads to any
fuel system component or any moving
part. Be careful of hot engine parts.
•
The battery contains sulphuric acid,
which can cause serious burns.
•
If sulphuric acid comes into contact
with eyes, skin or clothing, flush with
large quantities of water. If acid
splashes into the eyes - seek medical
attention immediately.
•
Never smoke near the battery.
The service life and capacity of the
starter battery
The service life of the battery is affected by
several factors, including factors such as the
number of starts, discharging, driving style,
driving conditions, climatic conditions, etc.
Battery starting capacity decreases gradually
with time and therefore needs to be recharged
if the car is not used for a long time or when it
is only driven short distances. Extreme cold
further limits starting capacity. If the starter
battery is discharged a large number of times,
it will negatively affect the service life.
In order to maintain the starter battery in good
condition, it is recommended that there is at
least 15 minutes driving/week or that the bat-
tery is connected to a battery charger with
automatic trickle charging. A starter battery
that is kept fully charged has a maximum serv-
ice life.
Location
The starter battery is located in the cargo area.
WARNING
If the starter battery is disconnected, the
automatic opening and closing function
must be reset to work properly. A reset
must take place for pinch protection to
work.
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MAINTENANCE AND SERVICE
607
On certain models, the battery is attached
with a retaining strap. Make sure the
retaining strap is properly tightened.
Specifications for starter battery
Battery type
H7 AGM
Voltage (V)
12
Cold start capacity
A
- CCA
B
(A)
800
Size, L×B×H
315×175×190 mm (12.4×6.9×7.5 inches)
Capacity (Ah)
80
A
According to EN standard.
B
Cold Cranking Amperes.
Volvo recommends entrusting battery replace-
ment to an authorised Volvo workshop.
If the battery is replaced, make sure you
replace it with a battery with the same
size, cold starting capacity and type as the
original battery (see the decal on the bat-
tery).
Related information
•
Symbols on the batteries (p. 608)
•
•
Using jump starting with another battery
(p. 468)
•
Reset sequence for pinch protection
(p. 157)
•
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MAINTENANCE AND SERVICE
608
Hybrid battery
The car is equipped with a hybrid battery for
electric motor operation - a maintenance-free
rechargeable Lithium-ion type battery.
The car cannot be started if the hybrid bat-
tery is discharged.
If both the starter battery and the hybrid bat-
tery are discharged then both batteries must
be charged. In such a case, charging only the
hybrid battery is not possible. In order for the
hybrid battery to be charged, the starter bat-
tery must have a certain state of charge.
WARNING
The hybrid battery must only be replaced
by a workshop - an authorised Volvo work-
shop is recommended.
The service life and capacity of the
hybrid battery
The capacity of the hybrid battery diminishes
with age and use, which may result in
increased use of the internal combustion
engine and, as a consequence, reduced fuel
economy and reduced range during electric
operation.
Coolant
The hybrid battery's cooling system has a sep-
arate expansion tank.
The hybrid battery's coolant must only be
topped up by a workshop - an authorised
Volvo workshop is recommended.
Specifications for hybrid battery
Type:
Lithium-ion
Total amount of energy:
10.9 kWh.
Related information
•
Symbols on the batteries (p. 608)
•
•
Charging the hybrid battery (p. 409)
•
Symbols on the batteries
There are information and warning symbols
on the batteries.
Use protective goggles.
Further information in the
owner's manual for the
car.
Store the battery out of
the reach of children.
The battery contains cor-
rosive acid.
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MAINTENANCE AND SERVICE
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609
Avoid sparks and naked
flames.
Risk of explosion.
Must be taken for recy-
cling.
Related information
•
•
•
Battery recycle
A used starter battery must be recycled in an
environmentally sound manner.
Consult a workshop in the event of uncertainty
about how this type of waste should be dis-
carded - an authorised Volvo workshop is rec-
ommended.
Related information
•
•
•
Symbols on the batteries (p. 608)
Fuses and central electrical units
All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.
WARNING
Never use a foreign object or a fuse with an
amperage higher than that specified when
replacing a fuse. This could cause signifi-
cant damage to the electrical system and
possibly lead to fire.
WARNING
Orange-coloured cables must only be han-
dled by qualified personnel.
WARNING
Several components in the car work with
high-voltage current that could be danger-
ous in the event of incorrect intervention.
Do not touch anything that is not clearly
described in the owner's manual for the
car.
If an electrical component or function does not
work, it may be because the component's fuse
was temporarily overloaded and failed. If the
same fuse fails repeatedly then there is a fault
in the circuit. Volvo recommends contacting
an authorised Volvo workshop for checking.
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MAINTENANCE AND SERVICE
610
Location of central electrical units
Engine compartment
Under the left-hand front seat
Related information
•
•
Fuses in engine compartment (p. 611)
•
Fuses under the left-hand front seat
(p. 617)
Replacing a fuse
All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.
1. Look in the fuse diagram to locate the
fuse.
2. Pull out the fuse and check from the side
to see whether the curved wire has blown.
3. If this is the case, replace it with a new
fuse of the same colour and amperage.
WARNING
Never use a foreign object or a fuse with an
amperage higher than that specified when
replacing a fuse. This could cause signifi-
cant damage to the electrical system and
possibly lead to fire.
WARNING
Contact an authorised Volvo workshop
about the fuses not mentioned in the
owner's manual. If replacing the fuse is not
performed correctly, it can cause serious
damage to the electrical systems.
Related information
•
Fuses and central electrical units (p. 609)
•
Fuses in engine compartment (p. 611)
•
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MAINTENANCE AND SERVICE
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611
Fuses in engine compartment
Fuses in the engine compartment protect
engine and brake functions, amongst other
things.
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MAINTENANCE AND SERVICE
* Option/accessory.
612
On the inside of the cover there are tweezers
that facilitate the procedure for the removal
and fitting of fuses.
The fuse box also provides space for several
spare fuses.
Positions
On the inside of the cover is a label that shows
the location of the fuses.
Function
Ampere
Type
USB port, tunnel console, rear
*
5
Micro
Double USB ports, tunnel console, rear
*
7,5
Micro
12 V socket in tunnel console, front
15
Micro
–
–
Micro
12 V socket in cargo area
*
15
Micro
Engine Control Module (ECM)
20
Micro
Ignition coils; Spark plugs
15
Micro
Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); EGR cooling pump (diesel); Glow control mod-
ule (diesel)
Engine Control Module (ECM)
15
Micro
Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); Cooling pump for EGR (diesel); Glow control
module (diesel); Vacuum regulators; Valve; Valve for output pulse (diesel)
Valves for cooling
A
10
15
A
Micro
Lambda probe, centre (petrol); Lambda probe, rear (diesel)
15
Micro
Sensor for nitrous oxides (diesel); Engine Control Module (ECM)
15
Micro
Coolant pump
20
Micro
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MAINTENANCE AND SERVICE
}}
* Option/accessory.
613
Function
Ampere
Type
Right-hand headlamp
20
Micro
Left-hand headlamp
20
Micro
Airbags
5
Micro
Accelerator pedal sensor
5
Micro
Supplied when the ignition is switched on: Engine control module; Transmission components; Electric steering servo;
Central electronic module; Control module for brake system
5
Micro
Exterior audio module
OBD-II firewall
5
Micro
Alcohol lock
*
5
Micro
–
–
Micro
Internal relay coils
5
Micro
–
–
Micro
Sensor for brake pedal
5
Micro
Calculation unit
5
Micro
Control module for actuator for engagement/change of automatic gearbox gear positions
5
Micro
Hydraulic clutch control unit
25
Micro
Transmission control module
15
Micro
Hydraulic clutch control unit
25
Micro
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MAINTENANCE AND SERVICE
* Option/accessory.
614
Function
Ampere
Type
Engine Control Module (ECM)
5
Micro
Charging unit (OBC)
5
Micro
High voltage battery; Inverter generator
5
Micro
Horn
20
Micro
Siren
*
5
Micro
Windscreen wipers
30
MCase
B
Control module for brake system (valves, parking brake)
40
MCase
B
Control unit for brake system (ABS pump)
40
MCase
B
Brake booster
40
MCase
B
Actuator for transmission
30
MCase
B
Actuator for transmission
30
MCase
B
–
–
–
Right-hand headlamp; Left-hand headlamp
30
MCase
B
–
–
MCase
B
Start relay
30
MCase
B
Towbar control module
*
25
MCase
B
Towbar control module
*
40
MCase
B
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MAINTENANCE AND SERVICE
}}
* Option/accessory.
615
Function
Ampere
Type
–
–
MCase
B
Power driver seat
*
20
MCase
B
–
–
MCase
B
–
–
Micro
Air conditioning
5
Micro
High voltage battery; Inverter generator
5
Micro
Shut-off valve for the hybrid battery's coolant; Coolant pump 1 for hybrid battery
15
Micro
Coolant pump for electric drive system
15
Micro
Fuel filter heater (diesel)
30
MCase
B
Heated windscreen
*
right-hand side
40
MCase
B
Heated windscreen
*
left-hand side
40
MCase
B
Control function for support battery
5
Micro
Left-hand headlamp
20
Micro
Right-hand headlamp
20
Micro
A
Applies to petrol engines, generation 3 (VEP4_G3).
B
This type of fuse should be replaced by a workshop. An authorised Volvo workshop is recommended.
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MAINTENANCE AND SERVICE
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617
Fuses under the left-hand front
seat
Fuses under the left-hand front seat protect,
amongst other things, electrical sockets, dis-
plays and door modules.
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MAINTENANCE AND SERVICE
618
The
fuse box in the engine compartment
provides space for several spare fuses. On the
inside of the cover there are tweezers that
facilitate the procedure for the removal and fit-
ting of fuses.
Positions
On the inside of the cover is a label that shows
the location of the fuses.
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MAINTENANCE AND SERVICE
}}
* Option/accessory.
619
Function
Ampere
Type
Audio control device (amplifier)
A
40
MCase
B
Central Electric Module A: Sensors, radar units, power seats
*
40
MCase
B
Central Electric Module B: Sensors, radar units, power seats
*
40
MCase
B
Fan module for climate control system, front
40
MCase
B
Power operated tailgate
*
25
MCase
B
Power seat
*
, right
20
MCase
B
Parking heater
*
25
MCase
B
Control module for reduction of nitrous oxides (diesel)
30
MCase
B
Door module in right-hand rear door
20
Micro
Door module in left-hand rear door
20
Micro
Door module in left-hand front door
20
Micro
–
–
Micro
Door module in right-hand front door
20
Micro
Seat heating, rear
*
15
Micro
The fuel tank's insulation valve; Intermediate voltage module
5
Micro
Calculation module
5
Micro
Sun sensor
5
Micro
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