2015 VOLVO XC70 engine

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Refueling
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Manually opening the fuel filler door
If necessary, the fuel filler door can be opened manually:
1. Open the side hatch in the cargo area (onthe same side as the fuel filler door).
2. Grasp the handle on the green cord.
3. Gently pull the cord straight rearward until the fuel filler door clicks open.
Opening/closing the fuel cap
G022915
Fuel vapor expands in hot weather. Open the filler cap slowly. After refueling, close the fuel filler cap by turning it clockwise until it clicks into place.
CAUTION
•Do not refuel with the engine running 3
.
Turn the ignition off or to position I. If
the ignition is on, an incorrect reading could occur in the fuel gauge.
• Avoid overfilling the fuel tank. Do notpress the handle on the filler nozzlemore than one extra time. Too muchfuel in the tank in hot weather condi-tions can cause the fuel to overflow.Overfilling could also cause damage tothe emission control systems.
Emission controls
Three-way catalytic converter
•
Keep your engine properly tuned. Certain engine malfunctions, particularly involvingthe electrical, fuel or distributor ignitionsystems, may cause unusually high three-way catalytic converter temperatures. Donot continue to operate your vehicle ifyou detect engine misfire, noticeable lossof power or other unusual operating con-ditions, such as engine overheating orbackfiring. A properly tuned engine will
3
If the fuel filler cap is not closed tightly or if the engine is running when the vehicle is refueled, the Check Engine Light (malfunction indicator lamp) may indicate a fault. However, your vehicle's performance will not be affected. Use only Volvo original or approved fuel filler caps.

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Refueling
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help avoid malfunctions that could dam- age the three-way catalytic converter.
• Do not park your vehicle over combusti-ble materials, such as grass or leaves,which can come into contact with the hotexhaust system and cause such materialsto ignite under certain wind and weatherconditions.
• Excessive starter cranking (in excess ofone minute), or an intermittently firing orflooded engine can cause three-way cat-alytic converter or exhaust system over-heating.
• Remember that tampering or unauthor-ized modifications to the engine, theEngine Control Module, or the vehiclemay be illegal and can cause three-waycatalytic converter or exhaust systemoverheating. This includes: altering fuelinjection settings or components, alteringemission system components or locationor removing components, and/or repea-ted use of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxy- gen content of the exhaust gases. Readings are fed into a control module that continu-ously monitors engine functions and controlsfuel injection. The ratio of fuel to air into theengine is continuously adjusted for efficientcombustion to help reduce harmful emis-sions.

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Loading
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* Option/accessory, for more information, see Introduction.293
Introduction
The load carrying capacity of your vehicle is determined by factors such as the number ofpassengers, the amount of cargo, the weightof any accessories that may be installed, etc. To increase loading space, the rear seat backrests can be folded down, see page 93. When loading the cargo area, keep the fol- lowing in mind:
• Load objects in the cargo area against the backrest whenever possible.
• Unstable loads can be secured to theload anchoring eyelets with straps or weblashings to help keep them from shifting.
• Stop the engine and apply the parkingbrake when loading or unloading longobjects. The gear selector can beknocked out of position by long loads,which could set the vehicle in motion.WARNING
•Stop the engine, put the gear selector in
P, and apply the parking brake
when loading or unloading longobjects.
• The vehicle's driving characteristicsmay change depending on the weightand distribution of the load.
• A 44-pound (20 kg) object produces aforce of 2,200 pounds (1,000 kg) in ahead-on collision at 30 mph (50 km/h).
• The cargo area and rear seat shouldnot be loaded to a level higher than2 in. (5 cm) below the upper edge ofthe rear side windows. Objects placedhigher than this level could impede thefunction of the Inflatable Curtain.
Power tailgate*
G017876
Power tailgate closing button
Automatic openingThe power tailgate can be opened automati- cally in the three ways:
• By pressing and holding the
but-
ton on the lighting panel until the tailgate begins to open.
• By pressing and holding the
but-
ton on the remote key until the tailgate begins to open.
• By pressing the rubber-covered buttonunder the outer handle on the tailgate.
The taillights illuminate automatically when the automatic open function is used.

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tailgate will be released from the electrical system.
• If the tailgate is being
closed, it will stop
and move slightly in the opposite direc-tion.
Operating the tailgate manuallyThe power tailgate can be disconnected from the vehicle’s electrical system by quickly pull-ing the outer handle twice. The tailgate canthen be opened/closed manually.
Folding down the rear seat backrests
The rear seat backrests can be folded down for additional loading space, see page 95.
Load anchoring eyelets
The load anchoring eyelets on both sides of the vehicle are used to fasten straps, etc., tohelp anchor items in the cargo area.
WARNING
• Cover sharp edges on long loads to help prevent injury to occupants.Secure the load to help prevent shift-ing during sudden stops.
• Always secure large and heavy objectswith a seat belt or cargo retainingstraps.
• Always secure the load to help preventit from moving in the event of suddenstops.
• Switch off the engine, apply the park-ing brake and put the gear selector inP
when loading and unloading the
vehicle.
Cargo area floor rails and hooks
Load secured in upper and lower hooks The floor of the cargo compartment has rails on opposite sides of the vehicle equippedwith hooks for anchoring loads with straps,nets, etc.
Cleaning the railsDirt or other small objects that collect in therails can make moving, locking, unlocking,and removing the hooks more difficult.Objects can be removed from the rails with avacuum cleaner, and the rails can be cleanedwith a moist cloth.

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Moving the load anchoring hooks
G017742
To move a hook, fold it down in the direc- tion in which its opening points.
Press the hook down lightly and move it to the desired position.
Fold up the hook. It will lock in place.
NOTE
There should be at least 2 in. (50 cm) between the hooks in the rail.
WARNING
Switch off the engine, apply the parking brake and put the gear selector in P when
loading and unloading the vehicle.
Removing a hook
G018134
The load-securing hooks can easily be removed, for example, to clean the rail.
To remove a hook, fold it down in the direction in which its opening points.
Press the hook down lightly and move the it to an opening in the rail.
Pull the hook straight up.
Replace a hook in the rail in the reverse order.
NOTE
In order to return a removed hook into a rail, it must be pressed down lightly.
Reinserting a hook
G019581
Upper illustration: hooks correctly installed, Lower illustration: hooks incorrectly installed
It is important to insert the hooks correctly in the rails. The hooks' openings should pointaway from each other.
• The opening on the hook closest to the rear seat backrest should point towardthe backrest.
• The opening on the hook closest to thetailgate should point toward the tailgate.
WARNING
The hooks must be installed correctly in the rail. Incorrectly installed hooks will befolded down by the strap, allowing them tomove. The load will then no longer besecurely anchored.

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Towing a trailer
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Introduction
Volvo recommends the use of Volvo trailer hitches that are specially designed for thevehicle.
NOTE
See page 385 for the maximum trailer and tongue weights recommended by Volvo.
•Observe the legal requirements of the state/province in which the vehicles are
• All Volvo models are equipped withenergy-absorbing shock-mounted bump-ers. Trailer hitch installation should notinterfere with the proper operation of thisbumper system.
Trailer towing does not normally present any particular problems, but take into considera-tion: • Increase tire pressure to recommended full pressure. See the tire inflation tableon page 316.
• When your vehicle is new, avoid towingheavy trailers during the first 620 miles(1,000 km).
• Maximum speed when towing a trailer:50 mph (80 km/h).
• Engine and transmission are subject toincreased loads. Therefore, engine cool-ant temperature should be closely watched when driving in hot climates orhilly terrain. Use a lower gear and turn offthe air conditioner if the temperaturegauge needle enters the red range.
• If the automatic transmission begins tooverheat, a message will be displayed inthe text window.
• Avoid overload and other abusive opera-tion.
• Hauling a trailer affects handling, durabil-ity, and economy.
• It is necessary to balance trailer brakeswith the towing vehicle brakes to providea safe stop (check and observe state/local regulations).
• Do not connect the trailer's brake systemdirectly to the vehicle's brake system.
• More frequent vehicle maintenance isrequired.
• Remove the ball holder when the hitch isnot being used.
WARNING
• Bumper-attached trailer hitches must not be used on Volvos, nor shouldsafety chains be attached to thebumper.
• Trailer hitches attaching to the vehiclerear axle must not be used.
• Never connect a trailer's hydraulicbrake system directly to the vehiclebrake system, nor a trailer's lightingsystem directly to the vehicle lightingsystem. Consult your nearest author-ized Volvo retailer for correct installa-tion.
• When towing a trailer, the trailer'ssafety wire must be correctly fastenedto the hole or hook provided in thetrailer hitch on the vehicle. The safetywire should never be fastened to orwound around the drawbar ball.

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Towing a trailer
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NOTE
•When parking the vehicle with a trailer on a hill, apply the parking brakebefore putting the gear selector in
P.
Always follow the trailer manufactur-er's recommendations for wheelchocking.
• When starting on a hill, put the gearselector in
D before releasing the park-
ing brake.
• If you use the manual (Geartronic) shiftpositions while towing a trailer, makesure the gear you select does not puttoo much strain on the engine (usingtoo high a gear).
• The drawbar assembly/trailer hitchmay be rated for trailers heavier thanthe vehicle is designed to tow. Pleaseadhere to Volvo's recommended trailerweights.
• Avoid driving with a trailer on inclinesof more than 15%.
Trailer cableAn adapter is required if the vehicle's trailer hitch has a 13-pin connector and the trailerhas 7 pins. Use an adapter cable approvedby Volvo. Make sure the cable does not dragon the ground.
Detachable trailer hitch (accessory) 1
A
C
EDBG010496
Ball holder
Locking bolt
Cotter pin
Hitch assembly
Safety wire attachment
Installing the ball holder1. If necessary, remove the cotter pin from
the locking bolt and slide the locking bolt out of the hitch assembly.
2. Slide the ball holder into the hitch assem- bly. 3. Align the hole in the ball holder with the
one in the hitch assembly.
4. Slide the locking bolt through the hitch assembly/ball holder.
5. Insert the cotter pin in the hole at the end of the locking bolt.
Removing the ball holder1. Remove the cotter pin from the lockingbolt and slide the locking bolt out of theball holder/hitch assembly.
2. Pull the ball holder out of the hitch assembly.
NOTE
A cover for the hitch assembly is also included in the kit.
Trailer Stability Assist (TSA)
Trailer Stability Assist is a system designed to help stabilize a vehicle that is towing a trailerwhen the vehicle and trailer have begun tosway and is part of the Dynamic Stability andTraction Control system (DSTC). See page152 for information on DSTC.
1Check with your retailer for availability of the Volvo accessory trailer hitch

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Towing a trailer
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FunctionA vehicle towing a trailer may begin to sway for various reasons. Normally this only occursat high speeds but, for example, if the traileris overloaded or if the load is unevenly dis-tributed in the trailer, there is risk of swayingat speeds between approximately 45-55 mph(70-90 km/h). Swaying may be caused by factors such as: •The vehicle and trailer are hit by a sud- den, strong crosswind
• The vehicle and trailer are traveling on anuneven road surface or drive over a bump
• Sudden movements of the steering wheel
Facts about TSA
•
TSA intervenes at speeds above approxi-mately 40 mph (60 km/h)
• The DSTC symbol (
) in the instru-
ment panel will flash when TSA is working
• If the driver switches off the DSTC sys- tem's Spin Control function, TSA will alsobe switched off (but will be on again thenext time the engine is started)
• TSA may not intervene when the vehicleand trailer begin to sway if the driver triesto compensate for the swaying motion bymoving the steering wheel rapidly
How TSA worksOnce swaying has begun, it can be very diffi- cult to stop, which makes it difficult to controlthe vehicle and trailer. The TSA system continuously monitors the vehicle's movements, particularly lateralmovement. If the system detects a tendencyto sway, the brakes are applied individuallyon the front wheels, which has a stabilizingeffect on the vehicle and trailer. This is oftenenough to enable the driver to regain controlof the vehicle. If this is not adequate to stop the swaying motion, the brakes are applied to all of thewheels on the vehicle and on the trailer if it isequipped with brakes, and engine power istemporarily reduced. As the swaying motionbegins to decrease and the vehicle-trailerhave once again become stable, TSA will nowstop regulating the brakes/engine power andthe driver regains control of the vehicle.