Page 226 of 473

When a battery replacement is required,the battery should only be replaced witha Ford recommended replacement batterythat matches the electrical requirementsof the vehicle.
Because your vehicle’s engine iselectronically-controlled by a computer,some engine control settings aremaintained by power from the low voltagebattery. Some engine computer settings,like the idle trim and fuel trim strategy,optimize the driveability and performanceof the engine. Some other computersettings, like the clock and radio stationpresets, are also maintained in memory bypower from the low voltage battery. Whena technician disconnects and connects thelow voltage battery, these settings areerased. Complete the following procedurein order to restore the settings:
1.With the vehicle at a complete stop,set the parking brake.
2.Shift into park (P).
3.Switch off all accessories.
4.Fully press the brake pedal and startthe vehicle.
5.Run the engine until it reaches normaloperating temperature. While theengine is warming up, complete thefollowing: Reset the clock. See AudioSystem (page 281). Reset the powerwindows bounce-back feature. SeeWindows and Mirrors (page 82).Reset the radio station presets. SeeAudio System (page 281).
6.Allow the engine to idle for at least oneminute. If the engine turns off, pressthe accelerator pedal to start theengine.
7.While the engine is running, press thebrake pedal and shift into neutral (N).
8.Allow the engine to run for at least oneminute by pressing on the acceleratorpedal.
9.Drive the vehicle at least 12 mi (20 km)to completely relearn the idle and fueltrim strategy.
Note:If you do not allow the engine torelearn the idle and fuel trim strategy, theidle quality of your vehicle may be adverselyaffected until the engine computereventually relearns the idle trim and fueltrim strategy.
Make sure that you dispose of old batteriesin an environmentally friendly way. Seekadvice from your local authority aboutrecycling old batteries.
CHECKING THE WIPER
BLADES
Run the tip of your fingers over the edge ofthe blade to check for roughness.
Clean the wiper blades with washer fluidor water applied with a soft sponge orcloth.
CHANGING THE FRONT WIPER
BLADES
Note: If streaks or smears appear on thewindshield, clean the windshield and thewiper blades. If that does not resolve theissue, install new wiper blades.
2232018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceE142463
Page 227 of 473

Service Position
Set the windshield wipers in the serviceposition to change the wiper blades. Thewindshield wipers return to the startingposition when you switch the ignition on.
Note:You can use the service position inwinter to provide easier access to the wiperblades for freeing them from snow and ice.Make sure the windshield is free from snowand ice before you switch the ignition on.
1.Switch the ignition on.
2.Switch the ignition off and press andhold the wiper lever in position A withinthree seconds.
3.Release the wiper lever when thewindshield wipers reach the serviceposition.
Note:You can also move the wiper armsto the service position manually when theignition is off. Do not move the wiper armsto the service position manually when theignition is on. The wiper arms lock when youswitch the ignition on.
Changing the Windshield WiperBlades
Note:Do not hold the wiper blade whenlifting the wiper arm.
1.Lift the wiper arm and then press thewiper blade locking buttons together.
Note:Make sure that the wiper arm doesnot spring back against the glass when thewiper blade is not attached.
2.Slightly rotate the wiper blade.
3.Remove the wiper blade.
4.To install, reverse the removalprocedure.
Note:Make sure that the wiper blade locksinto place.
CHANGING THE REAR WIPER
BLADES
Note:Do not hold the wiper blade whenlifting the wiper arm.
2242018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceE75184 E129986A E129990112
Page 228 of 473

Note:Make sure that the wiper arm doesnot spring back against the glass when thewiper blade is not attached.
1.Lift the wiper arm.
2.Slightly rotate the wiper blade.
3.Disengage the wiper blade from thewiper arm.
4.Remove the wiper blade.
5.Install in the reverse order.
Note:Make sure that the wiper blade locksinto place.
ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
If your vehicle has been involved in a crash,have the aim of the headlamp beamchecked by an authorized dealer.
Headlamp Aiming Target
8 ft (2.4 m)A
Ground to the center of theheadlamp low beam bulbB
25 ft (7.6 m)C
Horizontal reference lineD
Vertical Aim Adjustment Procedure
1.Park your vehicle on level groundapproximately 25 ft (7.6 m) from a wallor screen.
2.Measure the distance from the groundto the center of the headlamp lowbeam bulb and mark an 8 ft (2.4 m)long horizontal reference line on thewall or screen at this height.
2252018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceE13006032 E142592
Page 229 of 473

Note:There may be an identifying mark onthe lens to help you locate the center of thebulb.
Note:To see a clearer light pattern whileadjusting one headlamp, you may want toblock the light from the other headlamp.
3.Switch on the low beam headlampsand open the hood.
4.On the wall or screen you will observea flat zone of high intensity lightlocated at the top of the beam pattern.If the top edge of the flat zone of highintensity light is not on the horizontalreference line, adjust the aim of theheadlamp beam.
5.Locate the vertical adjuster on eachheadlamp. Use a suitable tool, forexample a screwdriver or hexagonalsocket, to turn the adjuster clockwiseor counterclockwise to adjust thevertical aim of the headlamp. Thehorizontal edge of the brighter lightshould touch the horizontal referenceline.
6.Close the hood and switch off thelamps.
Horizontal Aim Adjustment
The horizontal aim of the headlamp beamon your vehicle is not adjustable.
REMOVING A HEADLAMP
1.Open the hood. See Opening andClosing the Hood (page 211).
2262018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceE199411 E142465 E164485
Page 232 of 473
2.Carefully remove the cover.
3.Turn the bulb holder counterclockwiseand remove it.
4.Press the bulb in and turn the bulbcounterclockwise to remove it.
Side Marker Bulb
1.Remove the headlamp. SeeRemoving a Headlamp (page 226).
2.Carefully remove the cover.
3.Remove the bulb holder by pulling itstraight out.
4.Remove the bulb by pulling it straightout.
Front Fog Lamp
1.Remove fog lamp grille from the frontfascia then unscrew the fog lamp.
2.Disconnect the electrical connector.
3.Turn the bulb holder counterclockwiseand remove it.
Note:You cannot separate the bulb fromthe bulb holder.
2292018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceE184153342 2E184156 2E1841573
Page 233 of 473
Rear Lamps - 4 Door
Direction indicator and rear lampbulb.A.
Brake lamp bulb.B.
Brake Lamp, Rear Lamp and DirectionIndicator
1.Carefully remove the cover.
2.Remove the wing nuts and detach theclip.
3.Remove the lamp.
4.Disconnect the electrical connector.
5.Turn the bulb holder counterclockwiseand remove it.
6.Press the bulb in and turn the bulbcounterclockwise to remove it.
2302018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceABE133714 E133702 2E133703 E1337134
Page 235 of 473

4.Disconnect the electrical connector.
5.Turn the bulb holder counterclockwiseand remove it.
6.Remove the bulb by pulling it straightout.
LED Rear Lamps (If Equipped)
These lamps have LED bulbs. Contact anauthorized dealer.
Replacing Licence Plate and HighMounted Brake Lamp Bulbs
These lamps have LED bulbs. Contact anauthorized dealer.
BULB SPECIFICATION CHART
Replacement bulbs are specified in thechart below. Headlamp bulbs must bemarked with an authorized “D.O.T.” forNorth America to ensure lampperformance, light brightness and patternand safe visibility. The correct bulbs willnot damage the lamp assembly or void thelamp assembly warranty and will providequality bulb burn time.
Trade numberFunction
H1LLHeadlamps high beam (Halogen)
D3S* Headlamps high beam (HID)
H11LLHeadlamp low beam (Halogen)
D3S* Headlamp low beam (HID)
H1LLDaytime running lamps
LED* Daytime running lamps (High series)
193Park lamp - front
LED* Park lamp - front (High series)
WY21WDirection indicator - front
PY21WDirection indicator - front (High series)
H8Fog lamps
WY5WSidemarker - front
2322018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingMaintenanceE1841584
Page 241 of 473

Stripes or Graphics (If Equipped)
Hand washing your vehicle is preferredhowever, pressure washing may be usedunder the following conditions:
•Do not use water pressure higher than2,000 psi (14,000 kPa).
•Do not use water hotter than 179°F(82°C).
•Use a spray with a 40° wide sprayangle pattern.
•Keep the nozzle at a 12 in (305 mm)distance and 90° angle to yourvehicle's surface.
Note:Holding the pressure washer nozzleat an angle to the vehicle's surface maydamage graphics and cause the edges topeel away from the vehicle's surface.
Underbody
Regularly clean the underside of yourvehicle using water. Keep body and doordrain holes free of debris or foreignmaterial.
Under Hood
For removing black rubber marks fromunder the hood we recommend MotorcraftWheel and Tire Cleaner or Motorcraft Bugand Tar Remover.
WAXING
Regular waxing is necessary to protect yourcar's paint from the elements. Werecommend that you wash and wax thepainted surface once or twice a year.
When washing and waxing, park yourvehicle in a shaded area out of directsunlight. Always wash your vehicle beforeapplying wax.
•Use a quality wax that does not containabrasives.
•Follow the manufacturer’s instructionsto apply and remove the wax.
•Apply a small amount of wax in aback-and-forth motion, not in circles.
•Do not allow wax to come in contactwith any non-body (low-gloss black)colored trim. The wax will discolor orstain the parts over time.
•Roof racks.
•Bumpers.
•Grained door handles.
•Side moldings.
•Mirror housings.
•Windshield cowl area.
•Do not apply wax to glass areas.
•After waxing, your car's paint shouldfeel smooth, and be free of streaks andsmudges.
CLEANING THE ENGINE
Engines are more efficient when they areclean because grease and dirt buildup keepthe engine warmer than normal.
When washing:
•Take care when using a power washerto clean the engine. The high-pressurefluid could penetrate the sealed partsand cause damage.
•Do not spray a hot engine with coldwater to avoid cracking the engineblock or other engine components.
•Spray Motorcraft Engine Shampoo andDegreaser on all parts that requirecleaning and pressure rinse clean. InCanada, use Motorcraft EngineShampoo.
•Never wash or rinse the engine while itis hot or running; water in the runningengine may cause internal damage.
2382018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingVehicle Care