2016 VOLVO XC70 ECU

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10 Maintenance and servicing
10
338
Extra high beam2
G021748
1. Remove the headlight housing from the
vehicle (see Bulbs – headlight housing (p. 335)).
2. Remove the cover over the bulbs (see Bulbs – cover (p. 336)).
3. Remove the bulb by pressing the holder downward.
4. Remove the connector from the bulb.
5. Insert a new bulb in the connector until it snaps in place. It can only be inserted in one way.
6. Return the bulb holder into position in the headlight housing.
7. Put the cover back into position and rein- stall the headlight housing.
Related information
• Bulbs – specifications (p. 341)
Bulbs – front turn signals
The turn signal bulb is concealed behind the smaller cover.
G021750
1. Remove the headlight housing from the
vehicle (see Bulbs – headlight housing (p. 335)).
2. Remove the round cover by pulling the tab until the cover comes off.
3. Pull out the holder to access the bulb.
4. Pull out the burned out bulb and press a new bulb into the socket. It can only be secured in one position.
5. Press the bulb holder into the socket and press until it clicks into place.
6. Press the cover in place until it clicks into position.
2Models with optional Active Bending Lights only.

10 Maintenance and servicing
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339
7. Reinstall the headlight housing.
Related information
•
Bulbs – specifications (p. 341)
Bulbs – front side marker lights
The side marker bulb is concealed behind the smaller cover.
G021751
1. Remove the headlight housing from the
vehicle (see Bulbs – headlight housing (p. 335)).
2. Remove the small round cover over the bulbs.
3. Pull the wire to withdraw the bulb holder.
4. Pull out the burned out bulb and press a new bulb into the socket. It can only be secured in one position.
5. Press the bulb holder into the socket and press until it clicks into place.
6. Press the cover in place until it clicks into position.
Related information
• Bulbs – specifications (p. 341)
Bulbs – location of taillight bulbs
The following illustrations show the location of the bulbs in the taillight cluster.
Taillight lens, right side
Parking light (LEDs)
Brake light (LEDs)
Turn signal
Side maker light (LEDs)
Backup light
Rear fog light
Brake light (LEDs)
Related information
• Bulbs – introduction (p. 334)
• Bulbs – specifications (p. 341)

10 Maintenance and servicing
10
343
Wiper blades – windshield
The wiper blades should be replaced regularly for best effect. The windshield wiper blades must be in the vertical (service) position for replacement,washing or to lift them away from the wind-shield when e.g., removing ice or snow.
Replacing the windshield wiper blades
G021763
NOTE
The windshield wiper blades are different lengths. The blade on the driver’s side islonger than the one on the passenger side.
With the wipers in the service position, fold out the wiper arm from the wind-shield. Press the button on the wiperblade attachment and pull the wiperblade straight out, parallel with the wiperarm.
Slide in the new wiper blade until it clicks into place.
Check that the blade is securely in place.
4. Press the wipers back against the wind- shield.
To return the wipers from the service position to the normal position, fold the wipers backagainst the windshield and press the START/
STOP ENGINE button briefly to put the igni-
tion in mode I (or start the engine).
CleaningKeeping the windshield and wiper bladesclean helps improve visibility and prolongsthe service life of the wiper blades. Clean thewiper blades with a stiff-bristle brush andlukewarm soap solution or car washing deter-gent.
Related information
• Engine compartment – washer fluid (p. 344)
• Wiper blades – service position (p. 342)

10 Maintenance and servicing
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344
Wiper blades – tailgate
The wiper blades should be replaced regularly for best effect.
Replacing the tailgate wiper blade
G032770
1. Fold the wiper arm outward.
2. Grasp the inner section of wiper blade (atthe arrow).
3. Pull out the blade to release it from the wiper arm.
4. Press the new wiper blade into place and check that it seats securely.
5. Fold the wiper arm back toward the tail- gate window.
Related information
• Engine compartment – washer fluid (p. 344)
Engine compartment – washer fluid
Washer fluid helps keep the windshield and headlights clean. During cold weather, thereservoir should be filled with windshieldwasher solvent containing antifreeze. UseVolvo Original Washer Fluid or the equivalentwith a recommended pH value between 6 and8.
G021764
Location of the washer fluid reservoir
The windshield and headlight washers share a common reservoir. The washer fluid reservoir is located on the driver's side of the engine compartment. Forcapacities, see the printed Owner's Manual. Specification: Use a washer antifreeze rec-
ommended by Volvo, mixed with water. Volume: •
6.8 US qts (6.5 liters)
• 4.7 US qts (4.5 liters 4
)
Related information
• Wiper blades – service position (p. 342)
4
Models without headlight washers

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10 Maintenance and servicing
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346
CAUTION
The infotainment system's energy-saving feature may not function correctly or at all,and/or a message may be displayed if abattery charger or jumper cables are notconnected properly.
• The negative terminal on the battery must
never be used to connect a
jumper cable or a battery charger.Only the ground point on the chassismay be used.
See Jump starting (p. 250) for an illustra- tion and additional information.
WARNING
• Never expose the battery to open flame or electric spark.
• Do not smoke near the battery.
• Battery fluid contains sulfuric acid. Donot allow battery fluid to contact eyes,skin, fabrics or painted surfaces. Ifcontact occurs, flush the affected areaimmediately with water. Obtain medi-cal help immediately if eyes are affec-ted.
NOTE
The life of the battery is shortened if it becomes discharged repeatedly.
Related information
•
Battery – changing (p. 347)
• Battery – maintenance (p. 346)
• Battery – symbols (p. 345)
Battery – maintenance
Proper battery maintenance can help prolong its service life.
Maintenance
• Use a screw driver to open the caps or cover and a flashlight to inspect the level.
• If necessary, add distilled water. The levelshould never be above the indicator.
• The fluid level should be checked if thebattery has been recharged.
• After inspection, be sure the cap overeach battery cell or the cover is securelyin place.
• Check that the battery cables are cor-rectly connected and properly tightened.
• Never disconnect the battery when theengine is running, or when the key is inthe ignition. This could damage the vehi-cle's electrical system.
• The battery should be disconnected fromthe vehicle when a battery charger isused directly on the battery.
• To help keep the battery in good condi-tion, the vehicle should be driven for atleast 15 minutes a week or connected toa charger with an automatic chargingfunction.
• If the battery is fully discharged a numberof times, this may shorten its service life.Keeping the battery fully charged helpsprolong its service life.

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10 Maintenance and servicing
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348
RemovalSwitch off the ignition, remove the remote key from the ignition slot and wait at least5 minutes before disconnecting the battery sothat all information in the vehicle's electricalsystem can be stored in the control modules.
Open the clips on the front cover and remove the cover.
Release the rubber molding so that the rear cover is free.
Remove the rear cover by pulling it away.
Detach the black negative cable.
Detach the red positive cable
Detach the ventilation hose from the
battery
Loosen the screw holding the battery
clamp.
Move the battery to the side and lift it up.
WARNING
PROPOSITION 65 WARNING! Battery posts, terminals, and related accessories contain lead and lead com-pounds, chemicals known to the state ofCalifornia to cause cancer and reproduc-tive harm. Wash hands after handling.
Installation1. Lower the battery into the battery box.
2. Move the battery inward and to the side until it reaches the rear edge of the box.
3. Tighten the clamp that secures the bat- tery.
4. Connect the ventilation hose. > Be sure that it is correctly connectedto the battery and the vent in the vehi- cle's body.
5. Connect the red positive cable.
6. Connect the black negative cable.
7. Press in the rear cover. (See Removal).
8. Reinstall the molding. (See Removal).
9. Reinstall the front cover and secure it with the clips. (See Removal).
Related information
• Battery – handling (p. 345)
• Battery – symbols (p. 345)
Fuses – introduction
The fuses help protect the vehicle's electrical components from overloading. There are relay/fuseboxes located in the engine compartment, the passenger com-partment and the cargo area. If an electrical component fails to function, this may be due to a blown fuse. The easiestway to see if a fuse is blown is to remove it. To do so:
1. Pull the fuse straight out. If a fuse is diffi-
cult to remove, a special fuse removal
tool is located on the inside of the engine compartment fusebox cover .
2. From the side, examine the curved metal wire in the fuse to see if it is intact.
If the wire is broken, insert a new fuse of the same color and amperage (written on thefuse). If fuses burn out repeatedly, have the electri- cal system inspected by a trained and quali-fied Volvo service technician.
WARNING
Never use metal objects or fuses with higher amperage than those stated on thefollowing pages. Doing so could seriouslydamage or overload the vehicle's electricalsystem.

10 Maintenance and servicing
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361
Automatic car wash
The vehicle should be washed at regular inter- vals since dirt, dust, insects and tar spotsadhere to the paint and may cause damage.To help prevent corrosion, it is particularlyimportant to wash the car frequently in thewintertime.• We do NOT recommend washing your car in an automatic wash during the firstfew months (because the paint will nothave hardened sufficiently).
• An automatic wash is a simple and quickway to clean your car, but it is worthremembering that it may not be as thor-ough as when you yourself go over thecar with sponge and water. Keeping theunderbody clean is most important, espe-cially in the winter. Some automaticwashers do not have facilities for washingthe underbody.
NOTE
Condensation may form temporarily on the inside of the lenses of exterior lights suchas headlights, fog lights, or taillights. Thisis normal and the lights are designed towithstand moisture. Normally, condensa-tion will dissipate after the lights have beenon for a short time.
CAUTION
• Before driving into an automatic car wash, turn off the optional rain sensorto avoid damaging the windshield wip-ers.
• Make sure that side view mirrors, aux-iliary lamps, etc, are secure, and thatany antenna(s) are retracted orremoved. Otherwise there is risk of themachine dislodging them.
• Chromed wheels:
Clean chrome-
plated wheels using the same deter-gents used for the body of the vehicle.Aggressive wheel-cleaning agents canpermanently stain chrome-platedwheels.
WARNING
• When the vehicle is driven immediately after being washed, apply the brakes,including the parking brake, severaltimes in order to remove any moisturefrom the brake linings.
• Engine cleaning agents should not beused when the engine is warm. Thisconstitutes a fire risk.
Related information
•
Polishing and waxing (p. 361)
• Cleaning the interior (p. 362)
• Washing the car (p. 360)
Polishing and waxing
Normally, polishing is not required during the first year after delivery, however, waxing maybe beneficial.
• Before applying polish or wax the vehicle must be washed and dried. Tar spots canbe removed with kerosene or tar remover.Difficult spots may require a fine rubbingcompound.
• After polishing use liquid or paste wax.
• Several commercially available productscontain both polish and wax.
• Waxing alone does not substitute for pol-ishing a dull surface.
• A wide range of polymer-based waxescan be purchased today. These waxesare easy to use and produce a long-last-ing, high-gloss finish that protects thebodywork against oxidation, road dirt andfading.
• Do not polish or wax your vehicle in directsunlight (the surface of the vehicle shouldnot be warmer than 113 °F (45 °C).

12 Index
12
384
A
ABS (anti-lock brake system).................. 267
Accessory installation warning.................. 23
Active chassis system............................. 175
Active high beams..................................... 90Active yaw control........................... 175, 176
Adaptive brake lights............................... 267
Adaptive cruise control.................... 184, 185Airbags disconnecting the front passenger’s
side....................................................... 36
front...................................................... 32
inflatable curtain................................... 41
side impact........................................... 39
Air conditioning........................................ 131
Air distribution.................................. 126, 133
Air distribution table................................. 135
Air vents................................................... 126
Alarm........................................ 171, 172, 173
All Wheel Drive......................................... 263
Ambient temperature sensor..................... 77
Anti-freeze....................................... 274, 331Anti-lock brake system warning light......................................... 73
Anti-lock Brake System (ABS)................. 267 Approach lighting.............................. 97, 155
Auto-dim rearview mirror......................... 104
Automatic locking retractor....................... 47Automatic transmission
Eco (driving function).......................... 261
Geartronic........................................... 253
general description..................... 251, 253
oil........................................................ 376
shiftlock override................................ 255
Axle weight.............................................. 301
B
Battery maintenance............................... 346, 347
remote key, replacing......................... 160
replacing............................................. 347
specifications...................................... 378
start/stop............................................ 378
warning symbols................................. 345
Blind Spot Information System (BLIS)..... 240
Booster cushion, integrated.......... 57, 59, 60
Booster cushions....................................... 53
Brake lights.............................................. 267Brake system ABS..................................................... 267
Brake pad inspection.......................... 265 checking fluid level............................. 332
emergency brake assistance.............. 268
fluid..................................................... 376
general information............................. 265
Hill Descent Control.................... 263, 264
Bulbs cargo area lighting.............................. 340
headlights... 334, 335, 336, 337, 338, 339
introduction......................................... 334
license plate lights.............................. 340
side marker lights............................... 339
specifications...................................... 341
taillight................................................ 339C
Camera, Park Assist................................ 236
Capacity weight....................................... 301Cargo area changing bulbs................................... 340
floor rails............................................. 144
hooks for securing loads............ 144, 145
steel grid............................................. 149
Cargo area cover..................................... 149
Cargo area net......................................... 147
Cargo net................................................. 147
Catalytic converter................................... 279