How to replace the air filter in a Subaru Impreza?

The air filter is located inside a housing in the engine compartment. Separate the cover halves and remove the air filter element. Remove the bolt holding the rear half of the air filter case, then release the spring clips to access the filter element for 2004 and earlier non-turbocharged models. For all other models, loosen the intake hose clamp, then unlatch the clips to access the air filter element. Inspect the outer surface of the filter element. If it is dirty, replace it. If it is only moderately dusty, it can be reused by blowing it clean from the back to the front surface with compressed air. Because it is a pleated paper type filter, it cannot be washed or oiled. If it cannot be cleaned satisfactorily with compressed air, discard and replace it. While the cover is off, be careful not to drop anything down into the housing. Wipe out the inside of the air filter housing. Place the new filter into the housing, making sure it seats properly. The remainder of the installation is the reverse of removal.

Genuine Subaru Impreza Air Filter

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Subaru Impreza Element Air Cleaner
Part Number: 16546AA120
$17.96 MSRP: $24.95
You Save: $6.99 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Element-Air Cleaner
- Replaced by: 16546AA12A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2016 Subaru Impreza | 2.5 GT, Base, Limited, Premium, Sport, Sport Limited, STI, STI Special Edition, STI Sport, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
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Subaru Impreza Air Filter
Part Number: 16546AA020
$12.92 MSRP: $17.95
You Save: $5.03 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Element-Air Cleaner; Filter, Filter Element
- Replaces: 16546AA050
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2007 Subaru Impreza | 25i, Outback, Outback Sport, RS, STI, STI Limited, WRX, WRX TR | 2.0L H4 Turbo, 2.5L H4, 2.5L H4 Turbo
- 1993-1999 Subaru Impreza | Base, Brighton, L, L+, LE, LS, LX, Outback, RS | 1.8L H4, 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4 DOHC, 2.5L H4 SOHC
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Subaru Impreza Element Air Cleaner
Part Number: 16546AA090
$17.96 MSRP: $24.95
You Save: $6.99 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Element-Air Cleaner
- Replaced by: 16546AA10A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5i, Outback Sport | 2.5L H4
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Subaru Impreza Air Filter
Part Number: 16546AA070
$12.92 MSRP: $17.95
You Save: $5.03 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Element-Air Cleaner
- Replaced by: 16546AA07A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2004 Subaru Impreza | Brighton, L, Outback, RS, TS | 2.2L H4 Series, 2.5L H4, 2.5L H4 SOHC
View related parts
Subaru Impreza Air Cleaner Element
Part Number: 16546AA16A
$23.36 MSRP: $32.45
You Save: $9.09 (29%)
ADD TO CART
Product Specifications
- Other Name: Element-Air Cleaner
- Replaces: 16546AA150
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2017-2021 Subaru Impreza | Base, Limited, Premium, Sport

Subaru Impreza Air Filter

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Subaru Impreza Air Filter Parts Questions & Experts Answers

Element Air Cleaner
16546AA090
Q: How to replace the air filter in a Subaru Impreza?
A: The air filter is located inside a housing in the engine compartment. Separate the cover halves and remove the air filter element. Remove the bolt holding the rear half of the air filter case, then release the spring clips to access the filter element for 2004 and earlier non-turbocharged models. For all other models, loosen the intake hose clamp, then unlatch the clips to access the air filter element. Inspect the outer surface of the filter element. If it is dirty, replace it. If it is only moderately dusty, it can be reused by blowing it clean from the back to the front surface with compressed air. Because it is a pleated paper type filter, it cannot be washed or oiled. If it cannot be cleaned satisfactorily with compressed air, discard and replace it. While the cover is off, be careful not to drop anything down into the housing. Wipe out the inside of the air filter housing. Place the new filter into the housing, making sure it seats properly. The remainder of the installation is the reverse of removal.