2018 MAZDA MODEL 3 HATCHBACK spark plugs replace

▼Schedule 1
U.S.A. and Puerto Rico residents
- Engine oil flexible maintenance interval
Use when the maintenance monitor for “Oil Change” is set to “Fl exible”. For details,
see maintenance monitor. (page 6-16)
Maintenance Interval Number of months or kilometers (miles), whichever comes first.
Months 12 24 36 48 60 72 84 96
×1000 km 12 24 36 48 60 72 84 96
×1000 miles 7.5 15 22.5 30 37.5 45 52.5 60
ENGINE
Drive belts II
Engine oil & filter
*1Replace when wrench indicator light is ON. (Max interval: 12 months or 12,000 km (7,500 miles))
COOLING SYSTEM
Engine coolant
*2Replace at first 192,000 km (120,000 miles) or 10 years; after that, every 96,000 km (60,000 miles) or 5 years.
FUEL SYSTEM
Air filter Replace when any equivalent tim
ing of replacing engine oil.
(Max interval: 36 months or 60,000 km (37,500 miles))
Fuel lines and hoses
*3IIII
Hoses and tubes for emission
*3II
IGNITION SYSTEM
Spark plugs Replace every 120,000 km (75, 000 miles).
CHASSIS and BODY
Brake lines, hoses and connections II II
Disc brakes IIIIIIII
Tire (Rotation)
*4Rotate when any equivalent tim ing of replacing engine oil.
(Max interval: 12,000 km (7,500 miles))
Steering operation and linkages II II
Front and rear suspension, ball joints and wheel
bearing axial play IIII
Driveshaft dust boots II II
Bolts and nuts on chassis and body TTTT
Exhaust system and heat shields I
Emergency flat tire repair kit (if installed)
*5Inspect annually.
AIR CONDITIONER SYSTEM
Cabin air filter Replace when any equivalent timing of replacing engine oil.
(Max interval: 24 months or 48,000 km (30,000 miles))
Maintenance and Care
Scheduled Maintenance
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Chart symbols:
I: Inspect: Inspect and clean, r epair, adjust, fill up, or replac e if necessary.
T: Tighten
Remarks:
*1 The engine oil and filter must b e changed at least once a year or within 12,000 km (7,500 miles) since last
engine oil and filter change. Re set the engine oil data whenever replacing the engine oil regardless of the
message/wrench indicator light display.
*2 Use of FL-22 is recommended when replacing engine coolant. Using engine coolant other than FL-22 may
cause serious damage to the engine and cooling system.
*3 According to state/provincial and federal regulations, failure to perform maintenance on these items will not
void your emissions warranties. H owever, Mazda recommends that all maintenance services be performed at
the recommended time or mileage/kilometer period to ensure long -term reliability.
*4 The Tire Pressure Monitoring System (TPMS) initialization must be performed so that the system operates
normally (if equipped).
*5 Check the tire repair fluid expiration date every year when pe rforming the periodic maintenance. Replace the
tire repair fluid bottle with ne w one before the expiration dat e.
▼Schedule 2
U.S.A. and Puerto Rico residents - Severe driving conditions ma
intenance interval
Maintenance IntervalNumber of months or kilometers (miles), whichever comes first.
Months 6 1218243036424854606672
×1000 km 8 16 24 32 40 48 56 64 72 80 88 96
×1000 miles 5 10 15 20 25 30 35 40 45 50 55 60
ENGINE
Drive belts II
Engine oil & filter Flexible
*1Replace when wrench indicator light is ON. (Max interval: 12
months or 12,000 km (7,500 miles))
Fixed RRRRRRRRRRRR
COOLING SYSTEM
Engine coolant
*2Replace at first 192,000 km (120, 000 miles) or 10 years; after
that, every 96,000 km (60,000 miles) or 5 years.
Engine coolant level IIIIIIIIIIII
FUEL SYSTEM
Air filter
*3Replace when any equivalent tim ing of replacing engine oil.
(Max interval: 36 months or 60,000 km (37,500 miles))
Fuel lines and hoses
*4III
Hoses and tubes for emission
*4I
IGNITION SYSTEM
Spark plugs Replace every 12 0,000 km (75,000 miles).
ELECTRICAL SYSTEM
Function of all lights IIIIIIIIIIII
Maintenance and Care
Scheduled Maintenance
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*4 According to state/provincial and federal regulations, failure to perform maintenance on these items will not
void your emissions warranties. H owever, Mazda recommends that all maintenance services be performed at
the recommended time or mileage/kilometer period to ensure long -term reliability.
*5 The Tire Pressure Monitoring System (TPMS) initialization must be performed so that the system operates
normally (if equipped).
*6 Check the tire repair fluid expiration date every year when pe rforming the periodic maintenance. Replace the
tire repair fluid bottle with ne w one before the expiration dat e.

Canada residents
Maintenance Interval Number of months or kilometers (miles), whichever comes first.
Months 6 1218243036424854606672
×1000 km 8 16 24 32 40 48 56 64 72 80 88 96
×1000 miles 5 10 15 20 25 30 35 40 45 50 55 60
ENGINE
Drive belts II
Engine oil & filter
*1RRRRRRRRRRRR
COOLING SYSTEM
Engine coolant
*2Replace at first 192,000 km (120, 000 miles) or 10 years; after
that, every 96,000 km (60,000 miles) or 5 years.
Engine coolant level IIIIIIIIIIII
FUEL SYSTEM
Air filter IIIIIIIIIIII
Replace every 56,000 km (35 ,000 miles) or 3 years.
Fuel lines and hoses
*3III
Hoses and tubes for emission
*3I
IGNITION SYSTEM
Spark plugs Replace every 120,000 km (75,000 miles).
ELECTRICAL SYSTEM
Function of all lights IIIIIIIIIIII
CHASSIS and BODY
Brake lines, hoses and connections II I
Brake and clutch fluid level I I I I I I I I I I I I
Disc brakes Inspect every 24,000 km (15,000 miles) or 1 years.
Tire (Rotation)
*4Rotate every 8,000 km (5,000 miles).
Tire inflation pressure and tire wear
*4IIIIIIIIIIII
Steering operation and linkages I I I
Front and rear suspensi on, ball joints and wheel
bearing axial play III
Driveshaft dust boots I I I
Maintenance and Care
Scheduled Maintenance
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Scheduled Maintenance (Mexico)
Follow Schedule 1 if the vehicle is operated mainly where none of the following conditions
(severe driving conditions) apply.
Repeated short-distance driving
Driving in dusty conditions
Driving with extended use of brakes
Driving in areas where salt or other corrosive materials are us ed
Driving on rough or muddy roads
Extended periods of idling or low-speed operation
Driving for long periods in cold temperatures or extremely humi d climates
Driving in extremely hot conditions
Driving in mountainous conditions continually
If any do apply, follow Schedule 2.
NOTE
For maintenance guidelines beyond the kilome ters/months listed, follow the maintenance
intervals provided in the Scheduled Maintenance Tables.
▼ Schedule 1
Maintenance Interval Number of months or kilometers, whichever comes first
Months 6 1218243036424854606672
×1000 km 102030405060708090100110120
ENGINE
Drive belts II I
Engine oil & filter RRRRRRRRRRRR
COOLING SYSTEM
Cooling system II I
Engine coolant
*1Replace at first 200,000 km or 10 years; after that, every 100,000 km or 5 years
FUEL SYSTEM
Air filter RRRRRR
Fuel lines and hoses I
*2I*2I
Hoses and tubes for emission I
*2I*2I
Fuel filter Replace every 60,000 km
IGNITION SYSTEM
Spark plugs IIIIIIIIIIII
Replace every 120,000 km
Maintenance and Care
Scheduled Maintenance
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Maintenance IntervalNumber of months or kilometers, whichever comes first
Months 3 6 9 121518212427303336
×1000 km 5 1015202530354045505560
IGNITION SYSTEM
Spark plugs IIIIII
Replace every 120,000 km
ELECTRICAL SYSTEM
Function of all lights I I I I I I I I I I I I
CHASSIS and BODY
Brake lines, hoses and connections I I I
Brake and clutch fluid level I I I I I
Brake fluid R
Disc brakes IIIIII
Tire (Rotation)
*3Rotate every 10,000 km
Tire inflation pressure and tire wear
*3IIIIII
Steering operation and linkages IIIIII
Front and rear suspension, ball joints and wheel
bearing axial play III
Driveshaft dust boots III
Bolts and nuts on chassis and body TT T
Exhaust system and heat shields III
All locks and hinges LLLLLL
Washer fluid level IIIIII
Emergency flat tire repair kit (if installed)
*4Inspect annually.
AIR CONDITIONER SYSTEM
Cabin air filter RRR
Chart symbols:
I: Inspect: Inspect and clean, re pair, adjust, fill up, or replac e if necessary.
R: Replace
L: Lubricate
C: Clean
T: Tighten
Remarks:
*1 Use of FL-22 is recommended wh en replacing engine coolant. Using engine coolant other than FL-22 may
cause serious damage to the engine and cooling system.
*2 According to state/provincial and federal regulations, failure to perform maintenance on these items will not void your emissions warranties. However, Mazda recommends that all maintenance services be performed at
the recommended time or kilomete r period to ensure long-term reliability.
*3 The Tire Pressure Monitoring Sy stem (TPMS) initialization must be performed so that the system operates
normally (if equipped).
Maintenance and Care
Scheduled Maintenance
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*4 Check the tire repair fluid expiration date every year when performing the periodic maintenance. Replace the
tire repair fluid bottle with ne w one before the expiration dat e.
(Cont.)
Maintenance Interval Number of months or kilometers, whichever comes first
Months 39 42 45 48 51 54 57 60 63 66 69 72
×1000 km 65707580859095100105110115120
ENGINE
Drive belts II
Engine oil & filter RRRRRRRRRRRR
COOLING SYSTEM
Cooling system II
Engine coolant
*1Replace at first 200,000 km or 10 years; after that, every 100,000 km or 5 years
Engine coolant level IIIIIIIIIIII
FUEL SYSTEM
Air filter CRCRCR
Fuel lines and hoses I
*2I
Hoses and tubes for emission I
*2I
Fuel filter Replace every 60,000 km
IGNITION SYSTEM
Spark plugs IIIIII
Replace every 120,000 km
ELECTRICAL SYSTEM
Function of all lights IIIIIIIIIIII
CHASSIS and BODY
Brake lines, hoses and connections II I
Brake and clutch fluid level II I I
Brake fluid RR
Disc brakes IIIIII
Tire (Rotation)
*3Rotate every 10,000 km
Tire inflation pressure and tire wear
*3IIIIII
Steering operation and linkages IIIIII
Front and rear suspensi on, ball joints and wheel
bearing axial play III
Driveshaft dust boots I I I
Bolts and nuts on chassis and body T T T
Exhaust system and heat shields I I I
All locks and hinges LLLLLL
Maintenance and Care
Scheduled Maintenance
6-14
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