Quick take
The 2018 WRX is the update year of the generation, so it is the first of the newer-looking cars. It suits a buyer who wants the fresher styling and equipment without paying for the newest model, and who will treat the purchase like a serious inspection job.
Verify three things. First, both recalls: the fuel pump and the backup light switch. Second, the engine's history, because bearing failure reports are the most serious items in the data. Third, the car's modification record. Some 2018 owners say dealers turned down recall or repair work because of aftermarket parts, so a tuned car can bring extra headaches.
What changed for 2018
The 2018 model year brought a mid-cycle update to the WRX, which began as its own model in 2015. The car got new front styling and some equipment and cabin changes. It stays a sedan with a turbocharged 2.0-liter engine, a manual gearbox as the core choice and an optional automatic. If you are choosing between years, the main visible difference from 2017 is the revised look, rather than a different layout under the skin.
For 2018, the data lists a fuel pump recall that covers several Subaru models and years, so it does not apply to every WRX. The WRX STI, which buyers often cross-shop, may be mixed into the same federal records as the WRX, so do not read a number as being specific to either one. Check the VIN to see what applies.
Known trouble spots to check
There are 43 owner complaints for 2018. The top groups are engine (12), electrical (10), unknown or other (8), steering (7), fuel system (6) and power train (6).
Engine. Most of the serious reports involve internal damage. Owners describe a connecting rod failure, a rod bearing that spun, a rod knock heard at relatively low mileage, and a loss of power and control while driving. Several say they did their maintenance and the car was stock, though those claims are unverified. One buyer says the engine failed a few thousand miles after purchase at a bit over 60,000 miles. There are also reports of a strong fuel smell around the engine bay or in the cabin. Listen for knocking or ticking when the car is warm and under load, ask for oil change history, and be wary of a car with a recent engine swap that has no documentation.
Electrical system. Battery drain is the main theme. Owners describe cars that would not start after sitting, batteries replaced twice in under a year, and no fault found by a dealer. There are also reports of the car showing reverse while moving forward, with the backup camera and lights coming on at speed. That ties to the switch recall, so a fault of this kind is worth raising with a dealer. Start the car twice, and ask for battery history.
Unknown or other. These include dealers refusing to do a rear catalyst or recall work on tuned cars, a clutch release bearing that failed twice, and a sunroof that shattered at highway speed. For modified cars, ask the seller whether any dealer has declined service, and what would be required to return the car to stock.
Steering. Owners report a steering wheel that locked or seized without warning while driving, including one crash, and a steering feel that changed while braking in a turn. One report links it to a failed electronic module. These are serious. On a drive, turn from full lock to full lock, test at low and moderate speeds, and look for warning lights. Ask whether any steering parts have been replaced.
Fuel system. Along with the strong fuel odor, there are accounts of fuel pump failures, power fluctuating when climbing in heat with the air conditioning on, and boost that wandered up and down at higher revs. Check that the car idles smoothly and pulls evenly.
Power train. Complaints include a release bearing and fork that burned out a clutch again after repair, a transmission leak with slipping, and poor acceleration from a stop with roaring revs. Test the clutch, and check the underside for leaks.
General checks for this year:
- Fuel odor. Sniff around the car after it has been run. Fuel smells outside or inside are a red flag.
- Aftermarket parts. Intakes, tunes, intercoolers, exhausts, wheels and lowering springs all matter for diagnosis.
- Brakes and tires. Check pad thickness, rotor condition and tire wear, and ask whether the car has seen track use.
- Cooling. Look for coolant staining, check the reservoir level, and make sure the temperature gauge holds steady.
- Clutch. Feel the pedal engage point, look for judder, and ask whether the clutch has been replaced.
Recalls on a car this age
The data lists two recalls for the 2018 WRX. Subaru dealers fix them free of charge.
- Low-pressure fuel pump. This covers certain 2019 and 2020 Ascent, 2018 Forester, 2018 to 2020 Impreza, Legacy and Outback, and 2018 and 2019 BRZ, WRX and Toyota 86 vehicles. The pump inside the fuel tank may fail. It does not apply to every car in those groups, so check the VIN.
- Backup light switch. This covers certain 2015 to 2021 WRX cars. The switch may corrode, so the backup lights may not light and the camera image may not show in reverse.
Check the exact car at NHTSA's free recall lookup. A failing fuel pump is a driveability and safety issue, so treat this one as a priority. If a dealer declines to complete a recall because of aftermarket parts, ask why and what they need. A seller who says "I'll sort it out later" is not the same as a closed recall.
Test-drive checklist
- Ask for a cold start. Listen for ticking, knocking or rattles, and note any fuel smell in the cabin or around the car.
- Put the car in reverse. The camera should appear and the reverse lights should light. Then drive forward and make sure the dash does not suggest reverse.
- Test the clutch at a standstill, then pull away on an incline. It should not slip, shudder or smell hot.
- Find a quiet road and accelerate at moderate throttle. Boost should rise smoothly, with no surging or stumbling.
- Turn the steering wheel through its full range at a stop and again while rolling slowly. It should never stick or go heavy.
- Brake firmly from a safe speed, then corner at a normal pace. Pulling, vibration or noise from the front end should be explained.
- Run the air conditioning at a stop, then in traffic. Watch for stumbling or power loss.
- Park, shut it off, then restart it. Check the battery's strength and the oil level.
Before you hand over money
- A VIN recall check with the NHTSA lookup above.
- A vehicle history report, which can reveal accidents, title status and odometer trouble.
- A pre-purchase inspection by an independent shop, with a code scan, a compression or leak-down test if there are engine concerns, a fuel system check, and a battery test.
When you ask about modifications, be direct. Is the engine tune stock? Who wrote it and who installed it? Are the factory parts still available? Has the car been used on a track? Ask for receipts, dyno sheets and the tune file. If the seller says a dealer will accept the car for recall work, ask whether they have confirmed that.
Then run the numbers in the payment calculator so you know what the car will cost monthly.
Is it the right car for you?
The 2018 suits a driver who likes the updated look and wants a sporty daily car, and who will do enough research to find a well-kept example. It is also a reasonable choice if you want a car that is still fairly recent and may be closer to its original condition. Compare it with the 2017 and 2019 cars.
Skip it if you plan to modify the car heavily and rely on a dealer for service, or if you cannot get an inspection. A bearing-related engine failure is a major repair, and a modified car may complicate the warranty position.
Bottom line
A well-kept 2018 WRX is a fun car with fresher styling, but the engine, steering and fuel reports call for caution. Confirm the recalls, get the modification history in writing, and rely on an independent inspection.