User Manual - Page 426

For 2018 HYUNDAI SONATA.

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Maintenance
7-16
I : Inspect : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
3
: Fuel filter & Fuel tank air filter are considered to be maintenance free but periodic inspection is recommended for this mainte-
nance schedule depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of
power, hard starting problem, etc. replace the fuel filter immediately regardless of maintenance schedule and consult an
authorized HYUNDAI dealer for details.
Normal Maintenance Schedule (Theta 2.4 GDI) (CONT)
Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Miles×1,000 7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,000 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Brake lines, hoses and connections I I I I I I I I I I I I I I I
Disc brakes and pads I I I I I I I I I I I I I I I
Driveshaft and boots I I I I I I I I I I I I I I I
Suspension mounting bolts I I I I I I I I I I I I I I I
Air conditioner refrigerant I I I I I I I I I I I I I I I
Air conditioner compressor I I I I I I I I I I I I I I I
Exhaust pipe and muffler I I I I I I I I I I I I I I I
Automatic transaxle fluid (if equipped)
No check, No service required
Steering gear rack, linkage and boots I I I I I I I I I I I I I I I
Vapor hose, fuel filler cap and fuel tank I I I I I I I
Fuel tank air filter *
3
I I I I I I I
Fuel filter *
3
I I I I I I I
Fuel lines, hoses and connections I I I
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
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