2018 FORD FOCUS RS Owners Manual

4.Wipe any dirt or debris from the air filterhousing and cover to make sure no dirtgets in the engine and that you have agood seal.
5.Install a new air filter element.
Note:Make sure you align the locating tabon the air filter element with the fork in theair filter housing.
6.Install the air filter housing cover.
7.Install the screws to secure the air filterhousing cover to the air filter housing.
DRIVE BELT ROUTING
Drives the water pump andalternator and has two idlerpulleys.
A
Drives the air conditioningcompressor.B
292018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingMaintenanceE161383AB

We recommend that you only operate yourvehicle at high speeds at locationsdesigned to do so safely. Your vehicle haselectronic controls that may reduce poweror limit engine speed to help reducepowertrain temperatures if required.
Note:When using your vehicle on a track,have the vehicle serviced more frequently.This recommendation may not necessarilyprotect your vehicle or engine from damagein competition conditions. Increased wearand noise to certain parts of your vehiclemay also occur, for example brakes andtires. The vehicle Warranty may not covermechanical failure or damage caused toyour vehicle as a result of track use.
Steering Assistance
Steering assistance reduces andrequires more steering effortwhen you select sport or trackfrom the drive modes menu. See DriveControl (page 20).
Prolonged track driving can result in highsteering gear temperatures. If the steeringgear overheats, you will notice a furtherincrease in steering effort being required.
High steering gear temperatures can bereduced by doing any of the following:
•Reducing vehicle speed.
•Reducing steering input.
Normal track mode steering assistancereturns when the system cools down.
Note:Steering gear cooling time can bereduced if you leave the ignition switchedon while taking a pit stop.
Before Track Use
Before operating your vehicle on a track,check the following:
•Tire pressures. See Tire Pressures(page 35). Do not exceed a cold tirepressure of 50 psi (3.4 bar) for trackuse.
•Wheels and tires for wear and damage.
•Engine coolant, engine oil and brakefluid levels.
Do not operate your vehicle on a trackwhile:
•Carrying more than two peopleincluding the driver.
•Carrying cargo in the luggagecompartment.
•Carrying cargo or loose objects insideyour vehicle.
After Track Use
After track use, leave the engine runningfor a short time to allow it to reach thenormal operating temperature. Ifconditions allow, complete a cool downlap prior to taking a pit stop. Failure toallow the engine to sufficiently cool mayresult in a high coolant temperaturewarning message appearing in theinformation display.
You must replace the rear drive unit fluidafter 500 mi (800 km) of track use, or ifthe following message appears in theinformation display, whichever occurs first.
AWD System Oil Change Due
See All-Wheel Drive (page 13).
302018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingTrack Use

CLEANING THE EXTERIOR
Your vehicle has heat exchangersintegrated with the front fascia designedto maximize performance.
Do not apply a high-pressure washerdirectly to the heat exchangers as damageto the cooling fins could occur.
Cleaning Vehicle Wrap (If Equipped)
Do not wash your vehicle for the first sixweeks after the application of the wrap.
To prevent water from getting under thewrap, contact an authorized dealer torepair any damage caused by stone chipsas soon as possible.
Do not use a hot wax treatment if you usea car wash facility.
Note:Car wash brushes could damage thewrap.
Note:Bubbles could appear under the wrapfor a few weeks after the first applicationand also during high outside temperatures.These normally disappear after a shortperiod of time. If these do not, pleasecontact an authorized dealer.
Precautions for High-Pressure Wash
•Do not use water pressure higher than1,200 psi (80 bar).
•Do not use water hotter than 140°F(60°C).
•Keep the nozzle at a minimum distanceof 12 in (30 cm) and minimum angle of30° to your vehicle's surface.
312018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingVehicle Care

WHEELS
Your vehicle has unique wheels. They canbe more susceptible to damage from poorroad conditions due to their diameter,width and the use of low profile tires.
If the wheels encounter a harsh impact,inspect the inside and outside diametersfor damage.
Inspect the wheels for damage on a regularbasis. If you damage a wheel, have itchecked as soon as possible.
To avoid damaging the wheels:
•Maintain correct tire pressures. SeeTire Pressures (page 35).
•When installing wheels, always use atorque wrench and tighten the lug nutsto the correct specification.
•Exercise caution when usingautomated car washes. Hand washingor using touchless car washes withoutmechanical tracks is the best way toavoid potential damage.
•Do not use snow chains on the originalequipment wheels and tires of yourvehicle.
•Only use snow chains with thealternative winter wheels and tires, ordamage may be caused which will notbe covered by the vehicle Warranty.
Wheel Specification
19 in. x 8.0 in. 50 mm offset aluminum wheels.Original equipment.*
18 in. x 7.5 in. 50 mm offset aluminum wheels.Alternative winter use wheel.**
* See Tires (page 33).** See Using Winter Tires (page 34).
Note:Alternative winter use wheels are not supplied with your vehicle.
322018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingWheels and Tires

TIRES
The tires on your vehicle are designed tooptimize its performance. They are notoptimized for off-road or winterperformance. The ride, noise and wearcharacteristics are different tonon-performance tires. Your vehicle haslow profile tires. They can be moresusceptible to damage from poor roadconditions due to their diameter and width.
To make sure the tires perform asintended, it is important to correctlymaintain them.
To correctly maintain the tires, do thefollowing:
•Maintain correct tire pressures. SeeTire Pressures (page 35).
•Do not overload your vehicle.Maximum vehicle and axle weights arelisted on the tire information label.
•Take extra caution when operatingyour vehicle near its maximum load,including using the correct tirepressures and reducing speeds.
•Take extra caution when operating onrough roads to avoid impacts thatcould cause tire damage.
•Inspect the tires for damage on aregular basis. If a tire is damaged,replace it as soon as possible.
•Correct suspension alignment is criticalfor maximum performance andoptimal tire wear. If you notice uneventire wear, have the suspensionalignment checked as soon as possible.
•When replacing tires they must be ofthe same size, speed and load ratingas the original tires. We recommendthat you replace tires as a set of fourand do not mix tire brands or models.
Note:Do not use snow chains on theoriginal equipment wheels and tires of yourvehicle.
Note:Only use snow chains with thealternative winter wheels and tires, ordamage may be caused which will not becovered by the vehicle Warranty. See UsingWinter Tires (page 34).
Tire Specification
235/35R19Size.
YSpeed rating.
91Load rating.
332018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingWheels and Tires

USING SUMMER TIRES
The original equipment tires on your vehicleare designed to optimize its performancein dry or wet summer road conditions. Therubber compounds used in these tires loseflexibility and may develop surface cracksin the tread area at temperatures below19°F (-7°C).
We do not recommend using the originalequipment tires when temperatures dropbelow 45°F (7°C) or in snow and iceconditions.
Storing Summer Tires
Note:Always store your tires indoors attemperatures above 19°F (-7°C).
If the tires have been subjected to 19°F(-7°C) or less, warm the tires for at least24 hours in a heated space to at least 41°F(5°C):
•Before installing them on a vehicle.
•Before moving a vehicle.
•Before checking tire inflation.
Note:Do not place tires near heaters orheating devices used to warm the roomwhere the tires are stored.
Note:Do not apply heat or blow heated airdirectly onto the tires.
Note:Always inspect the tires after storageperiods and before use.
USING WINTER TIRES
The original equipment tires on your vehicleare designed to optimize its performancein dry or wet summer road conditions.They are not optimized for off-road orwinter performance and you must not usethem with snow chains. The use of anytype of snow chain with the originalequipment wheels and tires of your vehiclemay cause damage not covered by thevehicle Warranty. We do not recommendusing the original equipment tires whentemperatures drop below 45°F (7°C) or insnow and ice conditions.
We recommend that you use winter orall-season tires when temperatures dropbelow 45°F (7°C) or in snow and iceconditions.
When using winter tires:
•Do not operate your vehicle aboveposted speed limits or perform highspeed maneuvers.
•If you fit winter tires with a speed ratingless than the original equipment tires,do not exceed the maximum speedrating for the tire.
Winter Tire Specification
235/35R19Original equipment size.
225/40R18*Alternative winter use size.
VSpeed rating.
92Load rating.
*Required tire size for snow chain use to avoid tire, wheel or vehicle damage. See Wheels(page 32).
342018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingWheels and Tires

TIRE PRESSURES
Check all tire pressures when they are cold,at least once every two weeks. Checkthem after the vehicle has been parked forat least three hours. Tire pressure candiminish over time and fluctuate withtemperature. Do not reduce the tirepressure of warm tires.
The recommended tire inflation pressuresare on the tire information label on thedriver side B-pillar.
Note:Do not exceed a cold tire pressure of50 psi (3.4 bar) for track use.
352018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingWheels and Tires

ENGINE SPECIFICATIONS
SpecificationDimension Description
138.0 in³ (2,261.4 cm³)Engine capacity.
3.4 in (87.5 mm)Engine bore.
3.7 in (94 mm)Engine stroke.
9.4:1Compression ratio.
1-3-4-2Ignition firing order.
Coil on spark plugIgnition system.
0.030 in (0.75 mm)Spark plug gap.
257.4/6000*Maximum net power kW/RPM.
350/6000*Maximum net power PS/RPM.
345/6000*Maximum net power hp/RPM.
440/2000-4500Maximum net torque Nm/RPM.
325/2000-4500Maximum net torque lb.ft/RPM.
6500Maximum continuous engine RPM.
6800Maximum intermittent engine RPM.
ChainCamshaft drive.
*We derive engine performance figures according to Regulation (EC) 715/2007 and ECER85.
362018 Focus RS (CEW) RS, Canada/United States of America, JM5J 19A285 LAA enUSA, Edition date: 201706, First PrintingCapacities and Specifications