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aFe 10-10121 is the Pro 5R oiled-cotton replacement element for its specified factory air-filter housing. It is an air filter, not a complete intake or new airbox.
Current exact manufacturer headline names A4/A5 2009-2012 3.2L V6 and S5 2010-2018 3.0L V6. The January 2012 manual separately names A4/A5/Q5 3.2L, A4/S4/S5 3.0L and S5 4.2L applications with individual bounds. An exact-part ECS table positively names B8 and B9 S5 3.0T/Sportback and additional B8/Q5 engines; its general chassis list does not establish every existing trim/year endpoint. Original bounds, gaps, allroad/TDI and 2009 A4 Cabriolet labels are retained with engine, body generation and housing holds. No broad headline-absence deletion or new scope is made.
| Existing years | Make | Model | Named row |
|---|---|---|---|
| 2009 | Audi | A4 Quattro | Base |
| 2009 | Audi | A4 Quattro | Cabriolet |
| 2008-2010 | Audi | A5 Quattro | Base |
| 2013-2016 | Audi | allroad | Premium |
| 2013-2016 | Audi | allroad | Premium Plus |
| 2013-2015 | Audi | allroad | Prestige |
| 2009-2010 | Audi | Q5 | Premium |
| 2009-2012 | Audi | Q5 | Premium Plus |
| 2010-2013 | Audi | S5 | Cabriolet |
| 2019-2021 | Audi | S5 | Premium |
| 2014-2016 | Audi | S5 | Premium Plus |
| 2019-2021 | Audi | S5 | Premium Plus |
| 2014-2016 | Audi | S5 | Prestige |
| 2019-2021 | Audi | S5 | Prestige |
| 2020-2021 | Audi | S5 Sportback | Premium |
| 2018-2021 | Audi | S5 Sportback | Premium Plus |
| 2014-2016 | Audi | Q5 | TDI Premium Plus |
| 2016 | Audi | Q5 | TDI Premium Plus S-Line |
| 2014-2016 | Audi | Q5 | TDI Prestige |
| 2016 | Audi | Q5 | TDI Prestige S-Line |
| 2010-2013 | Audi | S4 | Base |
| 2014-2016 | Audi | S4 | Premium Plus |
| 2014-2016 | Audi | S4 | Prestige |
| 2008-2013 | Audi | S5 | Base |
| 2014-2017 | Audi | SQ5 | Premium Plus |
| 2014-2017 | Audi | SQ5 | Prestige |
Match 10-10121 to the actual factory housing and sealing surfaces.
| Brand | aFe POWER |
|---|---|
| Manufacturer Part Number | 10-10121 |
| Product type | Air Filters - Direct Fit |
| Media | Pro 5R: five progressively finer layers of oiled cotton gauze |
| Frame | Polyurethane top and bottom/base |
| Service | Washable and reusable; use appropriate aFe oiled-filter maintenance products |
| Numeric dimensions | Not established from the current exact product page |
| Emissions | Current exact manufacturer page states this product does not require a CARB EO number |
| UPC | 802959102107 |
| WARNING | This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. |
One aFe 10-10121 replacement air-filter element, two #8 star washers and two hex-tooth nuts per the exact shared manual. Alternative filter part numbers denote separate media choices, not two elements. No new MAF sensor or separate coupling is listed.
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
The exact shared manual lists one air-filter element, two #8 star washers and two hex-tooth nuts. The two filter part numbers are alternative media choices, not two supplied filters.
Is the original gasket reused?No. The exact manual says the original gasket is not used with the new filter; the polyurethane flange seal provides the intended interface.
Which tools does the manual actually require?It lists a ratchet, 9/32-inch socket and T20 screwdriver. Step 4 also specifically calls for T10, despite its omission from the short tool list. No numeric torque is provided.
Does it include a new MAF sensor?No. The existing MAF housing is released at two metal retainers and reinstalled into the lubricated flange seal. A new electrical sensor is not listed as supplied.
Do B9 S5 or TDI rows prove all current years fit?The exact ECS table positively names B9 S5/Sportback 3.0T, but not every existing year/trim endpoint or TDI/allroad/body generation. Those rows remain qualified; no related-engine or shared-model inference creates new coverage.
What is included?One filter, two #8 star washers and two hex-tooth nuts for this Audi part, per its exact shared manual. A new sensor or separate coupling is not itemized.
How should the oiled media be serviced?Follow current aFe Pro 5R cleaning and re-oiling guidance. Confirm the current approved service product. Do not treat cotton gauze as oil-free synthetic media or over-oil it.
Does this OE filter require a CARB EO number?The current exact manufacturer page says it does not require a CARB EO number. That statement concerns this replacement filter and does not establish approval for an entire modified intake or another component.
Verify aFe 10-10121. Read the exact one-page January 2012 manual. Release the two metal retainers at the MAF housing. Remove two T20 screws near the sensor and five at the airbox top, then lift the top out. Step 4 additionally calls for a T10 Torx screwdriver to remove the original element, although the abbreviated tool list omits T10. The original gasket is not reused. Fit the replacement with the supplied two #8 star washers and two hex-tooth nuts using a 9/32-inch socket; do not overtighten. Refit the top and seven screws. Apply a small amount of appropriate lubricant inside the urethane flange seal, gently insert the existing MAF housing and lock both metal retainers. No new MAF sensor or numeric tightening torque is supplied.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
Manufacturer filter-flow and media-efficiency claims do not guarantee vehicle power gains. Actual engine, original housing and sealing interfaces must match.
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