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2018 Subaru Wrx Maintenance Schedule

Manufacturer-recommended service intervals and open recall alerts for your 2018 Subaru Wrx.

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Recalls2Full scheduleKnown issues8

How Subaru schedules service

Subaru's symmetrical AWD system places unusually high demands on differential fluid and transfer case service — skipping these is the most common cause of premature drivetrain wear. Older Subarus with the EJ25 engine (pre-2011) require timing belt replacement; FB and FA engines (2011+) use a maintenance-free chain. Subaru's published intervals below align with the owner's manual Schedule II (severe) which most US drivers qualify for.

⚠️

2 Open Recalls

Source: NHTSA

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Campaign #21V587000 · Jul 29, 2021

Issue: Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump inside the fuel tank may fail.

Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Fix: Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were mailed September 24, 2021. Subaru and Toyota owners may call customer service at 1-844-373-6614. Subaru's number for this recall is WRG-21.

EXTERIOR LIGHTING:BACK UP LIGHTS:SWITCH

Campaign #22V522000 · Jul 21, 2022

Issue: Subaru of America, Inc. (Subaru) is recalling certain 2015-2021 WRX vehicles. The backup light switch may corrode and become inoperative, which can result in the backup lights not illuminating and the rearview camera image not displaying when the vehicle is in reverse.

Risk: Inoperative backup lights and an inoperative rearview camera can reduce vehicle visibility and driver awareness, increasing the risk of a crash.

Fix: Dealers will inspect and replace the backup light switch, as necessary, free of charge. Owner notification letters were mailed September 16, 2022. Owners may contact Subaru's customer service at 1-844-373-6614. Subaru's number for this recall is WRE-22.

Recall data refreshed Jul 26, 2026.

Essential maintenance

Critical for safety and preventing major damage

🛢️

Engine Oil & Filter

Every 6,000 mi

Replace 0W-20 full-synthetic oil and filter every 6,000 miles. WRX/STI 2.0L/2.5L turbo: 3,750 miles. Non-turbo FB engines: 6,000 miles severe / 10,000 normal.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

🔄

Tire Rotation

Every 7,500 mi

Rotate tires every 7,500 miles. Critical on Subaru AWD — uneven tread depth across all 4 tires (>2/32") forces the center differential to bind, damaging the AWD coupling.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

🛑

Brake Inspection

Every 7,500 mi

Inspect brake pads, rotors, calipers, and parking brake every 7,500 miles. Outback and Forester pads commonly last 35,000-50,000 miles depending on terrain.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

🔧

Front Differential / Manual Transmission Fluid

Every 30,000 mi

Replace front differential and manual transmission fluid every 30,000 miles. CVT models use proprietary Subaru CVT fluid — a separate item.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

🔩

Rear Differential Fluid

Every 30,000 mi

Replace rear differential fluid every 30,000 miles. Use Subaru 75W-90 GL-5 — substitutes can cause whining noises within months.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

⚙️

CVT Fluid (Lineartronic)

Every 30,000 mi

Subaru CVT models (Outback, Legacy, Forester, Crosstrek, Impreza, Ascent): replace Lineartronic CVT fluid every 30,000 miles severe / 60,000 normal. Subaru High-Torque CVT-II fluid only — incorrect fluid destroys the chain-and-pulley system.

Estimated cost — typical U.S. ranges

Dealer

~$360–$500

Shop

~$255–$355

DIY

~$80–$180

CVT fluid is manufacturer-specific and pricey — do NOT substitute conventional ATF.

⏱️

Timing Belt (EJ25 engines, pre-2011)

Every 105,000 mi

Older Subarus with the EJ25 boxer engine (Forester, Outback, Legacy 1996-2010): replace timing belt every 105,000 miles. FB and FA boxer engines (2011+) use a chain — no scheduled replacement.

Estimated cost — typical U.S. ranges

Dealer

~$935–$1175

Shop

~$655–$825

DIY

Pro only

On interference engines, a snapped belt destroys valves. Worth doing on schedule. Bundle water pump + tensioner — labor is already there.

🧪

Brake Fluid

Every 30,000 mi

Replace DOT 3 brake fluid every 30,000 miles or 30 months. Subaru's brake hold and EyeSight automatic emergency braking depend on uncontaminated fluid.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

💨

Engine Air Filter

Every 30,000 mi

Replace engine air filter every 30,000 miles. WRX/STI: inspect every oil change due to the higher airflow demand of the turbo intake.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

⚡

Spark Plugs

Every 60,000 mi

Iridium plugs every 60,000 miles on FB engines. WRX/STI 2.5L turbo: 30,000 miles due to higher cylinder pressures and EGT.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

🌡️

Super Coolant

Every 30,000 mi

Subaru Super Coolant (blue): first change at 137,500 miles or 11 years, then every 30,000 miles. Do not substitute green or orange — head gasket sealing chemistry depends on the formula.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Recommended maintenance

Extends the life of your vehicle and improves comfort

🌬️

Cabin Air Filter

Every 15,000 mi

Replace cabin air filter every 15,000 miles. Behind the glove box on most Subaru models.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2018 Subaru Wrx.

Reported to NHTSA

Acceleration hesitation and turbo surge

POWER TRAIN

3 NHTSA complaints · 2018-06 → 2025-07

“THIS ISSUE OCCURS ON ACCELERATION , MOST NOTICEABLE WHEN MERGING ONTO FREEWAY FROM ON RAMP 1/2 THROTTLE , THE VEHICLE STARTS TO ACCELERATE NORMAL THEN HITS AROUND 4200 RPM AND THE BOOST GAUGE GOES NUTS FLUCTUATING UP AND DOWN AND THE VEHICLE LOOSES POWER , HESITATES…”
— Owner report, NHTSA ODI #11104249
“When accelerating from a stop, the car is having trouble accelerating despite having the accelerator fully depressed. The engine sounds like it is roaring, but hardly any power is being produced…”
— Owner report, NHTSA ODI #11674850

Read all complaints on NHTSA →

Fuel pump failure

FUEL/PROPULSION SYSTEM

3 NHTSA complaints · 2022-06 → 2024-09

“Started car up. Check engine light is on, cruise control flashing. Fuel tank level is flashing. Has gas but the meter is says it’s empty. Took it to a mechanic and they told me it is the fuel pump that’s bad…”
— Owner report, NHTSA ODI #11588847
“We tool the car to the DMV to get the plates and rhey told us the car had a recall. They stated the Fuel pump may fail. However, we were unaware.”
— Owner report, NHTSA ODI #11468818

Read all complaints on NHTSA →

Windshield cracking

VISIBILITY/WIPER

3 NHTSA complaints · 2020-06 → 2021-01

“THE VEHICLE WAS IN MOTION ON A HIGHWAY WHEN THE WIND SHIELD CRACKED ALONG THE MOST SUPERIOR BORDER OF THE WINDSHIELD. THERE WAS NOTHING VISIBLE OR AUDIBLE THAT HAD CAUSED THE WINDSHIELD TO CRACK DURING MY 10 MINUTE COMMUTE. THERE WAS ALSO LITTLE TO NO TRAFFIC…”
— Owner report, NHTSA ODI #11329882
“WOKE UP ONE DAY TO MY WINDSHIELD HAVING A SMALLER CRACK THAT WAS NOT THERE BEFORE. WAS A COLD NIGHT CRACK HAS SPREAD, ASKED SUBARU IF THEY WOULD COVER THE COST THEY DIDN'T BUT ITS A KNOWN DEFECT IN SUBARU”
— Owner report, NHTSA ODI #11386489

Read all complaints on NHTSA →

Fuel vapor odor and fuel line leak in cabin

FUEL/PROPULSION SYSTEM

2 NHTSA complaints · 2025-03 → 2025-08

“Shortly after purchase (within 1 month), a strong raw gasoline vapor odor began entering the passenger cabin, strongest near the driver’s side rear seat and rear wheel well area…”
— Owner report, NHTSA ODI #11681878
“I have been experiencing a strong fuel odor both inside and outside the cabin when starting the engine. After several months of experiencing this issue, I recently had my vehicle fully inspected by an authorized Subaru dealership, and they confirmed a critical fuel leak issue…”
— Owner report, NHTSA ODI #11648026

Read all complaints on NHTSA →

Engine rod bearing failure

ENGINE

6 NHTSA complaints · 2019-04 → 2025-08

“I bought a 2018 Subaru WRX with 61,000 miles, After driving it 6,000 miles with engine spun a rod bearing, requiring a complete engine replacement. This is a vehicle that in the previous 4th generation of the car, it was recalled for this exact issue…”
— Owner report, NHTSA ODI #11604876
“Engine rod knock at 32,000 miles due to bearing failure causing loss of control of vehicle and sudden loss of power and control. Car was logged to be traveling at 35 mph with normal acceleration at time of failure…”
— Owner report, NHTSA ODI #11579828

Read all complaints on NHTSA →

Steering lock-up and loss of control

STEERING

7 NHTSA complaints · 2017-10 → 2022-09

“TL* THE CONTACT OWNS A 2018 SUBARU WRX. WHILE DRIVING AND AFTER SHIFTING THE GEAR, THE STEERING WHEEL SEIZED WITHOUT WARNING. AS A RESULT, THE VEHICLE JUMPED A CURB AND CRASHED INTO SOME BUSHES. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES. A POLICE REPORT WAS NOT FILED…”
— Owner report, NHTSA ODI #11097999
“TL* THE CONTACT'S SON OWNS A 2018 SUBARU WRX. WHILE MAKING A LEFT TURN AT 25 MPH, THE FRONT DRIVER SIDE WHEEL REMAINED IN A TURNED POSITION AFTER THE DRIVER ATTEMPTED TO STRAIGHTEN THE VEHICLE. THE DRIVER LOST CONTROL OF THE VEHICLE AND COLLIDED WITH A TREE…”
— Owner report, NHTSA ODI #11033086

Read all complaints on NHTSA →

Battery drain and no-start

ELECTRICAL SYSTEM

5 NHTSA complaints · 2021-05 → 2022-01

“Battery dies and vehicle is unable to start after short periods of being turned off. This has left me stranded in unsafe areas and can pose a major safety hazard. Vehicle has been inspected and no issues found by Subaru dealer…”
— Owner report, NHTSA ODI #11446144
“Parasitic battery drain. Car is rendered inoperable after periods of non use. The batter has been replaced and the problem persists.”
— Owner report, NHTSA ODI #11446839

Read all complaints on NHTSA →

Throw-out bearing and clutch failure

POWER TRAIN

3 NHTSA complaints · 2020-07 → 2024-09

“DEFECTIVE OEM THROW-OUT BEARING AND FORK IN THE SIX SPEED MANUAL TRANSMISSION COMPLETELY BURNING THE CLUTCH IN 3 MONTHS TO 3000 MILES AFTER REPAIR WITH REPLACEMENT PART. THIS IS COMPLETELY UNACCEPTABLE IN A BRAND NEW VEHICLE AFTER REPAIR AT DEALERSHIP…”
— Owner report, NHTSA ODI #11340541
“Cluth was replaced at a little over 50,000 miles and throw out bearing failed within 200 miles of the break in period. Took it back to dealer and they found that the throw out bearing was faulty and they replaced it…”
— Owner report, NHTSA ODI #11614223

Read all complaints on NHTSA →

Issues on other model years

  • 2015 Subaru Wrx →
  • 2016 Subaru Wrx →
  • 2017 Subaru Wrx →
  • 2019 Subaru Wrx →
  • 2020 Subaru Wrx →
  • 2021 Subaru Wrx →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 27, 2026. Investigation data refreshed Jul 27, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2018 Subaru Wrx reflects Subaru's published service intervals. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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