2005-2015 Audi A6/R8/S6 Blower Motor Resistor 4F0820521A
OEM Part #: 4F0-820-521-A (4F0820521A)
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The exact part you’ll receive — not a stock photo.
$19.99
Used
Donor2008 Audi A6 · 3.2L
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Genuine OEM Used
SKU: 703661
Donor Vehicle: 2008 Audi A6 · 3.2L
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$19.99
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A used genuine OEM Audi blower motor resistor, part number 4F0820521A, also superseding 4F0820521. This resistor module controls the speed of the cabin's HVAC fan by varying voltage to the motor. When it fails, a common symptom is the blower only working on one or two high speeds, or not running at all.
Specifications
| Fits Vehicle Model | A6, R8, S6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4F0-820-521-A (4F0820521A) |
| Compatible OEM Part No | 4F0-820-521 |
| Category | HVAC / Climate Control |
Compatible Vehicles
Fits 54 vehicle configurations across 1 make, 2005-2015.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 54 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2010 | Audi | A6 | Sedan | 3.2L V6 | |
| 2011 | Audi | A6 | Sedan | 3.2L V6 | |
| 2009 | Audi | A6 | Sedan | 3.2L V6 | |
| 2011 | Audi | R8 | Coupe | 5.2L V10 | |
| 2010 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | GT Coupe | 5.2L V10 | |
| 2009 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2012 | Audi | R8 | GT Spyder Convertible | 5.2L V10 | |
| 2011 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2015 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2015 | Audi | R8 | Coupe | 4.2L V8 | |
| 2010 | Audi | R8 | Coupe | 4.2L V8 | |
| 2009 | Audi | A6 | Quattro Wagon | 3.0L V6 Supercharged | |
| 2006 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2009 | Audi | R8 | Coupe | 4.2L V8 | |
| 2005 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2008 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2008 | Audi | S6 | Sedan | 5.2L V10 | |
| 2008 | Audi | A6 | Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2007 | Audi | A6 | Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Sedan | 3.2L V6 | |
| 2008 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2008 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2009 | Audi | S6 | Sedan | 5.2L V10 | |
| 2008 | Audi | R8 | Coupe | 4.2L V8 | |
| 2007 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2006 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2007 | Audi | S6 | Sedan | 5.2L V10 | |
| 2005 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2007 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2007 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2010 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | R8 | Coupe | 5.2L V10 | |
| 2009 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2010 | Audi | A6 | Quattro Wagon | 3.0L V6 Supercharged | |
| 2014 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2014 | Audi | R8 | Coupe | 5.2L V10 | |
| 2014 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2014 | Audi | R8 | Coupe | 4.2L V8 | |
| 2009 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2012 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2012 | Audi | R8 | Coupe | 4.2L V8 | |
| 2011 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2011 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2011 | Audi | S6 | Sedan | 5.2L V10 | |
| 2011 | Audi | R8 | Coupe | 4.2L V8 | |
| 2011 | Audi | A6 | Quattro Wagon | 3.0L V6 Supercharged | |
| 2011 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2010 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2010 | Audi | S6 | Sedan | 5.2L V10 |