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Subaru · Known Issues

2008 Subaru Impreza Problems: 4 Known Issues

2008 model year · 6,650+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 6,650+ owner reports, the 2008 Subaru Impreza has 4 documented known issues, with 2 rated critical. The most serious are EJ253 Head Gasket Failure (External Leak) ($1,500-$2,800 repair) and Rear Coil Spring Fracture ($0-$600 repair). The most commonly reported issue is EJ253 Head Gasket Failure (External Leak) with 4,200 owner reports. Across all issues with published estimates, repair costs range from $250 to $2,800. DIY maintenance guides at au7o.io.

In This Article

  • Impreza Suspension2
  • Impreza Engine1
  • Impreza Drivetrain1
  • Recalls10
  • FAQ
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In This Article

  • Suspension2
  • Engine1
  • Drivetrain1
  • Recalls10
  • FAQ

All 4 Known Issues

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Community reported
850 owners

On the 2008-2016 Subaru Impreza, 2008-2016 Imprezas (and related Crosstreks) have a known issue with rear coil springs fracturing, particularly in cold climates and areas that use road salt. The broken spring can puncture a tire, damage brake lines, or cause a sudden change in ride height and handling. Subaru issued a recall (WQH-74/NHTSA 19V-236) for 2008-2014 models covering free spring replacement. Later models (2015-2016) also experience the issue but may not be covered by recall.

Common Symptoms

  • Clunking noise from rear suspension
  • Vehicle sitting lower on one side
  • Visible crack or break in rear coil spring
  • Tire damage from broken spring end
  • Rattling noise over bumps from rear

How to Fix

Inspect rear coil springs for cracks or breaks, especially at the bottom coil. For 2008-2014 models, this is covered under Subaru recall WQH-74 (NHTSA 19V-236) - dealer will replace both rear springs and add protective spring covers at no cost. For non-recall models, replace with updated springs that include the protective coating. Spring part numbers: 20380FJ010 (left), 20380FJ020 (right) for 2012+ Impreza.

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Typical repair cost:$0 - $600

Research This Issue

Based on 850 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence850 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

On the 2008-2020 Subaru Impreza, the rear trailing arm bushings on Imprezas corrode and fail, particularly in salt-belt states. The steel sleeve inside the rubber bushing rusts and expands, tearing the rubber apart. This causes clunking noises, vague rear-end handling, and uneven rear tire wear. In severe cases, the bushing can separate completely, allowing the rear wheel to shift its alignment dramatically. Subaru issued a recall (WRF-99) on some models for trailing arm corrosion.

Common Symptoms

  • Clunking from rear over bumps
  • Rear end wanders or feels loose in corners
  • Uneven rear tire wear (inner or outer edge)
  • Visible rust and cracking around rear trailing arm bushings
  • Rear wheels appear to toe-out when viewed from behind

How to Fix

Replace rear trailing arm bushings. Inspect the trailing arm itself for corrosion — if the arm is heavily corroded, replace the entire trailing arm assembly. Whiteline or Kartboy polyurethane bushings resist corrosion better than OEM rubber-and-steel construction. Apply anti-seize to all bolts during reinstallation. Get a 4-wheel alignment after replacement.

Typical repair cost:$250 - $700

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence
Community reported
4,200 owners

On the 1999-2011 Subaru Impreza EJ253, the 2.5L EJ253 naturally-aspirated engine in 1999-2011 Imprezas is notorious for external head gasket failure. The composite head gaskets degrade over time, allowing coolant and oil to seep externally at the gasket mating surfaces. Unlike a typical blown head gasket that causes coolant-oil mixing, Subaru EJ25 head gaskets typically leak externally first. The boxer engine design means gaskets are at the bottom of the heads, making leaks drip downward and often go unnoticed. If left unaddressed, external leaks can progress to internal coolant-oil mixing and overheating.

Common Symptoms

  • Oil seepage visible on bottom of engine near head gasket area
  • Coolant level slowly dropping without visible external puddles
  • Sweet coolant smell from engine bay
  • Oil spots on garage floor near front of vehicle
  • Overheating in severe cases (internal gasket breach)
  • Bubbles in coolant overflow reservoir

How to Fix

Replace both head gaskets with updated MLS (multi-layer steel) gaskets (Subaru OEM 11044AA770 or Six Star MLS set). Resurface both cylinder heads to within 0.002 inch flatness spec. Replace timing belt, water pump (21111AA370), thermostat, and all seals while the engine is apart. Add Subaru Cooling System Conditioner (SOA635071) after repair. Budget 8-12 hours labor for the complete job.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Subaru 11044AA633 Naturally Aspirated Head Gasket

    current OE MLS head gasket after the affected engine and failure are confirmed Fitment/availability: 1999-2011 naturally aspirated 2.5-liter Impreza EJ251/EJ253 applications; quantity two, confirm VIN and engine Fitment/availability: Add…

    Subaru Online Parts
  • Genuine Subaru 21111AA007 Water Pump

    water pump only when failed, contaminated or due during accessible timing service Fitment/availability: 1999-2005 naturally aspirated 2.5-liter Impreza branch within this issue; confirm VIN and engine Fitment/availability: ships in 1-3 b…

    SubaruPartsDeal
  • Genuine Subaru 21111AA280 Water Pump

    later-branch water pump only when failed, contaminated or due during accessible timing service Fitment/availability: 2006-2011 naturally aspirated 2.5-liter Impreza branch within this issue; confirm VIN and engine Fitment/availability: A…

    Subaru Parts Guys
  • Genuine Subaru 21200AA072 Thermostat Assembly

    thermostat when testing, age or contamination warrants replacement Fitment/availability: Use here for the confirmed 1999-2005 naturally aspirated Impreza branch; verify VIN and catalog split Fitment/availability: ships in 1-3 business da…

    SubaruPartsDeal
  • Genuine Subaru 21200AA170 Thermostat Assembly

    later-branch thermostat when testing, age or contamination warrants replacement Fitment/availability: 2006-2011 naturally aspirated 2.5-liter Impreza branch within this issue; confirm VIN and engine Fitment/availability: ships in 1-3 bus…

    SubaruPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$1,500 - $2,800

Research This Issue

Based on 4,200 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence4,200 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
Community reported
1,600 owners

On the 2008-2020 Subaru Impreza, imprezas are highly susceptible to premature wheel bearing failure, often at 40,000-80,000 miles. The full-time AWD system adds constant load to all four wheel bearings. Rear bearings fail more frequently than fronts. Road salt, water, and debris accelerate bearing wear. Symptoms start as a subtle hum and progressively worsen to a loud growl. The noise is speed-dependent and may change when turning, helping identify which side is failing.

Common Symptoms

  • Progressive humming noise that increases with vehicle speed
  • Noise quiets when turning one direction and gets louder turning the other
  • Vibration felt through floorboard or steering wheel
  • ABS warning light illumination (wheel speed sensor affected)
  • Visible play when rocking the wheel at 12 and 6 o'clock positions

How to Fix

Replace the failed wheel bearing. Subaru Imprezas use hub-type bearings that require pressing out the old bearing and pressing in the new one. The steering knuckle must be removed. Use quality bearings: NSK 62BWKH19 (Subaru OEM supplier), Koyo DAC4584W-1CS81, or NTN AU0838-1LXL/L588. Replace in axle pairs for even wear. Torque specifications: front axle nut 162 ft-lbs, rear 140 ft-lbs.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Subaru 28373FG000 Front Hub and Bearing Assembly

    front bolt-on hub after a matching non-STI/WRX front corner is confirmed failed Fitment/availability: 2008-2014 standard Impreza, 2.5i, Outback Sport and WRX front branch; excludes STI-specific front hub and has a 2014 catalog overlap, s…

    SubaruPartsDeal
  • Genuine Subaru 28373FG010 STI Front Hub and Bearing Assembly

    STI-specific front bolt-on hub after the corner is confirmed failed Fitment/availability: 2008-2014 Impreza STI front only; not the standard Impreza/WRX front hub Fitment/availability: ships in 1-3 business days with Add to Cart live whe…

    SubaruPartsDeal
  • Genuine Subaru 28473FG000 Rear Hub and Bearing Assembly

    early-platform rear bolt-on hub after the corner is confirmed failed Fitment/availability: 2008-2011 Impreza 2.5i, Outback Sport, WRX and cataloged STI rear branch; confirm VIN and current 28473FL021 supersession Fitment/availability: sh…

    SubaruPartsDeal
  • Genuine Subaru 28373SC000 Front Hub and Bearing Assembly

    2014-2016 standard-platform front bolt-on hub after the corner is confirmed failed Fitment/availability: 2014-2016 standard Impreza front branch; 2014 overlaps the prior platform catalog, so confirm VIN/build Fitment/availability: Add to…

    SubaruPartsDeal
  • Genuine Subaru 28473FJ020 Rear Hub and Bearing Assembly

    2012-2016 rear bolt-on hub after the corner is confirmed failed Fitment/availability: 2012-2016 standard Impreza rear branch; confirm VIN and the 2016 production/supersession split Fitment/availability: Add to Cart live with 28473FL041 s…

    SubaruPartsDeal
  • Genuine Subaru 28373FL00A Front Hub and Bearing Assembly

    2017-2019 front bolt-on hub after the corner is confirmed failed Fitment/availability: 2017-2019 Impreza Base, Premium, Limited and Sport front; confirm VIN and current 28373FL01C supersession Fitment/availability: ships in 1-3 business …

    SubaruPartsDeal
  • Genuine Subaru 28373FL01A Front Hub and Bearing Assembly

    2020 front bolt-on hub after the corner is confirmed failed Fitment/availability: 2020 Impreza front branch within this card; confirm VIN and current 28373FL01C supersession Fitment/availability: direct Add to Cart product page live when…

    SubaruPartsDeal
  • Genuine Subaru 28473FL040 Rear Hub and Bearing Assembly

    later-platform rear bolt-on hub after the corner is confirmed failed Fitment/availability: 2016-2020 Impreza rear branch within this card; 2016 has a catalog overlap, so confirm VIN/build Fitment/availability: Add to Cart live with 28473…

    SubaruPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$250 - $700

Research This Issue

Based on 1,600 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence1,600 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
NHTSA Recalls10 recalls

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

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.

Campaign #21V58700029/07/2021

ELECTRICAL SYSTEM:SOFTWARE

Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 Subaru Impreza and 2018-2019 Crosstrek vehicles. The Engine Control Module (ECM) may continue to power the ignition coil after the engine is shut off, causing a short circuit.

Campaign #21V26400015/04/2021

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Subaru of America, Inc. (Subaru) is recalling certain 2019 Impreza, Outback, Legacy, and Ascent vehicles. The low pressure fuel pump may become inoperative.

Campaign #20V21800016/04/2020

ELECTRICAL SYSTEM:SOFTWARE

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Frequently Asked Questions

What are the most common Subaru Impreza problems?

According to Au7o's analysis of 6,650+ owner reports, the 2008 Subaru Impreza has 4 documented issues. The most frequently reported are: EJ253 Head Gasket Failure (External Leak), Rear Coil Spring Fracture, Premature Wheel Bearing Failure. Of these, 2 are rated critical and should be addressed promptly.

Is the Subaru Impreza reliable?

The 2008 Subaru Impreza has 4 known issues documented across 6,650+ owner reports. 2 issues are rated critical: EJ253 Head Gasket Failure (External Leak) and Rear Coil Spring Fracture. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Subaru Impreza problems?

Repair costs for known Subaru Impreza issues range from $0 to $2,800, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, EJ253 Head Gasket Failure (External Leak), typically costs $1,500-$2,800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 1999-2011 Subaru Impreza EJ253 Head Gasket Failure (External Leak)?

The 2.5L EJ253 naturally-aspirated engine in 1999-2011 Imprezas is notorious for external head gasket failure. The composite head gaskets degrade over time, allowing coolant and oil to seep externally at the gasket mating surfaces. Unlike a typical blown head gasket that causes c… Repairs typically run $1,500-$2,800. Severity: high.

What is the 2008-2016 Subaru Impreza Rear Coil Spring Fracture?

2008-2016 Imprezas (and related Crosstreks) have a known issue with rear coil springs fracturing, particularly in cold climates and areas that use road salt. The broken spring can puncture a tire, damage brake lines, or cause a sudden change in ride height and handling. Subaru is… Repairs typically run $0-$600. Severity: high.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 6,650+ owner reports, NHTSA recalls, TSBs, and automotive forums.

Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 Impreza and 2018-2019 Crosstrek vehicles. The Engine Control Module (ECM) may continue to power the ignition coil after the engine is shut off, which could result in a short circuit and blown fuse.

Campaign #19V74300018/10/2019

EXTERIOR LIGHTING:HEADLIGHTS

Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 Impreza vehicles. The left and right side reflex reflector and left side low beam reflector may inadequately reflect light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Campaign #22V62400012/08/2022

+ 5 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2008-2020 Subaru Impreza Premature Wheel Bearing Failure?

Imprezas are highly susceptible to premature wheel bearing failure, often at 40,000-80,000 miles. The full-time AWD system adds constant load to all four wheel bearings. Rear bearings fail more frequently than fronts. Road salt, water, and debris accelerate bearing wear. Symptoms… Repairs typically run $250-$700. Severity: medium.

What is the 2008-2020 Subaru Impreza Rear Trailing Arm Bushing Corrosion and Failure?

The rear trailing arm bushings on Imprezas corrode and fail, particularly in salt-belt states. The steel sleeve inside the rubber bushing rusts and expands, tearing the rubber apart. This causes clunking noises, vague rear-end handling, and uneven rear tire wear. In severe cases,… Repairs typically run $250-$700. Severity: medium.