This information is based on Japanese-market vehicles (JDM specification). Parts and symptoms may differ in your market.
Subaru
フォレスター: common problems
Pick a symptom to see what to suspect first, how to tell, and typical repair cost.
Pick a model code / engine to switch the weak points, cases and common failures below.
Illustration for referenceBy symptom
No reviewed cases for this model yet.
Most common failures on this model (by part)
Share of the 199 repair cases we collected in which each part was the cause or was replaced. This is not a failure rate per vehicle on the road.
- サーモコントロールバルブ46 cases 23%Main symptom: All warning lights come ontypically around 50,000 km
- Thermostat28 cases 14%Main symptom: All warning lights come ontypically around 50,000 km
- Brake booster26 cases 13%Main symptom: ブレーキペダルが固い・重いtypically around 40,000 km
- HIDバラスト11 cases 6%Main symptom: Lights not workingtypically around 100,000 km
- Wiring / connector8 cases 4%Main symptom: Lights not workingtypically around 60,000 km
- A/C compressor6 cases 3%Main symptom: Stalling / stops while drivingtypically around 30,000 km
- Lower arm / bush6 cases 3%Main symptom: Clicking when turningtypically around 60,000 km
- Clutch4 cases 2%Main symptom: Cannot drive / immobiletypically around 90,000 km
- CVT4 cases 2%Main symptom: Won't go into gear / won't shifttypically around 70,000 km
- Headlight bulb4 cases 2%Main symptom: Lights not workingtypically around 90,000 km
Petrol72 cases
FB25 2.5L ガソリン
- Model codes
SK9- Years
- 2018〜2020
By symptom
- All warning lights come on44 cases · not reviewed yet
- Check engine light on34 cases · not reviewed yet
- Engine won't warm up9 cases · not reviewed yet
- No acceleration / lack of power8 cases · not reviewed yet
- 運転支援の誤作動・誤警報7 cases · not reviewed yet
- 警告灯点灯(種類不明)6 cases · not reviewed yet
- Temperature warning / overheating6 cases · not reviewed yet
- Cannot drive / immobile5 cases · not reviewed yet
Common failures (by part)
- サーモコントロールバルブ43 cases 60%Main symptom: All warning lights come ontypically around 50,000 km
- Thermostat26 cases 36%Main symptom: All warning lights come ontypically around 50,000 km
- Brake booster1 cases 1%Main symptom: ブレーキペダルが固い・重い
- ECU1 cases 1%Main symptom: 意図しない急加速(申告)
- Wiring / connector1 cases 1%Main symptom: Power window not working
Petrol43 cases
EJ20 2.0L ガソリン
- Model codes
SG5SH5SF5- Years
- 2002〜2007
By symptom
- Lights not working13 cases · not reviewed yet
- Broken or detached parts7 cases · not reviewed yet
- Stalling / stops while driving6 cases · not reviewed yet
- Cannot drive / immobile6 cases · not reviewed yet
- Water leak into cabin4 cases · not reviewed yet
- Won't go into gear / won't shift3 cases · not reviewed yet
- No acceleration / lack of power2 cases · not reviewed yet
- ランプ内側の曇り2 cases · not reviewed yet
Common failures (by part)
- HIDバラスト8 cases 19%Main symptom: Lights not workingtypically around 100,000 km
- Wiring / connector4 cases 9%Main symptom: Lights not workingtypically around 90,000 km
- Headlight bulb3 cases 7%Main symptom: Lights not workingtypically around 90,000 km
- Automatic transmission (ATF)2 cases 5%Main symptom: 意図しない急加速(申告)
- Clutch2 cases 5%Main symptom: Stalling / stops while driving
- Fuel pump2 cases 5%Main symptom: Stalling / stops while driving
- Wheel hub bearing2 cases 5%Main symptom: Brake dragging / locked wheel
- Radiator2 cases 5%Main symptom: Cannot drive / immobile
Petrol42 cases
FB20 2.0L ガソリン
- Model codes
SJ5- Years
- 2012〜2018
By symptom
- ブレーキペダルが固い・重い8 cases · not reviewed yet
- Engine won't start (starter doesn't turn)6 cases · not reviewed yet
- Weak brakes / long pedal5 cases · not reviewed yet
- Cannot drive / immobile5 cases · not reviewed yet
- Broken or detached parts5 cases · not reviewed yet
- Vibration while driving3 cases · not reviewed yet
- Oil leak / seepage2 cases · not reviewed yet
- Stalling / stops while driving2 cases · not reviewed yet
Common failures (by part)
- Brake booster14 cases 33%Main symptom: ブレーキペダルが固い・重いtypically around 50,000 km
- Lower arm / bush4 cases 10%Main symptom: Clicking when turningtypically around 60,000 km
- Wiring / connector3 cases 7%Main symptom: Lights not workingtypically around 40,000 km
- A/C compressor2 cases 5%Main symptom: Noise when the air-con is on
- CVT2 cases 5%Main symptom: Stalling / stops while driving
- Shock absorber2 cases 5%Main symptom: Broken or detached parts
- VVT actuator / OCV2 cases 5%Main symptom: Oil leak / seepage
- A/C condenser1 cases 2%Main symptom: Air-con not cold
Petrol22 cases
FA20
By symptom
- Weak brakes / long pedal5 cases · not reviewed yet
- ブレーキペダルが固い・重い4 cases · not reviewed yet
- Oil leak / seepage3 cases · not reviewed yet
- All warning lights come on3 cases · not reviewed yet
- Stalling / stops while driving2 cases · not reviewed yet
- Heavy steering2 cases · not reviewed yet
- Vibration while driving2 cases · not reviewed yet
Common failures (by part)
- Brake booster9 cases 41%Main symptom: ブレーキペダルが固い・重いtypically around 30,000 km
- A/C compressor2 cases 9%Main symptom: Stalling / stops while driving
- A/C evaporator2 cases 9%Main symptom: Air-con not cold
- Lower arm / bush2 cases 9%Main symptom: Clicking when turning
- VVT actuator / OCV2 cases 9%Main symptom: Oil leak / seepage
- Brake master cylinder1 cases 5%Main symptom: Weak brakes / long pedal
- CVT1 cases 5%Main symptom: Harsh shifting
- MAF sensor1 cases 5%Main symptom: All warning lights come on
Petrol8 cases
EJ25 2.5L ガソリン
- Model codes
SG9SH9SF9- Years
- 2004〜2005
By symptom
- Lights not working3 cases · not reviewed yet
Common failures (by part)
- HIDバラスト3 cases 38%Main symptom: Lights not workingtypically around 100,000 km
- Brake booster1 cases 13%Main symptom: Weak brakes / long pedal
- Clutch1 cases 13%Main symptom: Won't go into gear / won't shift
- Wheel hub bearing1 cases 13%Main symptom: Noise from underneath
- Water bypass pipe (plastic)1 cases 13%Main symptom: Coolant leak / coolant loss
- Window regulator1 cases 13%Main symptom: Power window not working
Petrol8 cases
CB18 1.8L ガソリン
- Model codes
SK5- Years
- 2020〜2024
By symptom
- Stalling / stops while driving4 cases · not reviewed yet
- 警告灯点灯(種類不明)3 cases · not reviewed yet
- Engine won't start (starter doesn't turn)2 cases · not reviewed yet
Common failures (by part)
- EGR valve2 cases 25%Main symptom: Stalling / stops while driving
- サーモコントロールバルブ2 cases 25%Main symptom: 警告灯点灯(種類不明)
- エンジン制御コンピューター1 cases 13%Main symptom: Oil leak / seepage
- Injectors1 cases 13%Main symptom: Stalling / stops while driving
- Suction control valve (SCV)1 cases 13%Main symptom: No acceleration / lack of power
- Thermostat1 cases 13%Main symptom: Temperature warning / overheating
