Used Audi A6 for Sale with Low Mileage inCastro Valley, CA
238 vehicles found
See the total price upfront.
Only show listings that include dealer fees- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Chronos Gray Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 22,888
- Stock #:
- 34856A
- VIN:
- WAUE3BF22PN049227
Sponsored by Dublin Buick GMC
2023 Audi A6
quattro Premium Plus 45 TFSI
22,888 mi
Dublin, CA
11 mi away
Fair Deal
$36,083
- Year:
- 2021
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Brown (Carat Beige Metallic)
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Pearl Beige)
- Transmission:
- Automatic
- Mileage:
- 37,054
- Stock #:
- PMN048578
- VIN:
- WAUM2AF29MN048578
New arrival
Sponsored Listing
2021 Audi A6
quattro Prestige 55 TFSI AWD
37,054 mi
San Rafael, CA
29 mi away
Great Deal
$32,388
- Year:
- 2026
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 3L V6
- Exterior color:
- Mythos Black Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 697
- Stock #:
- LTN021102
- VIN:
- WAU55CFN1TN021102
New arrival
Sponsored Listing
2026 Audi A6
quattro Premium Plus 55 TFSI
697 mi
San Rafael, CA
29 mi away
Fair Deal
$63,062
- Year:
- 2025
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 7,651
- Stock #:
- 25A0024
- VIN:
- WAUL2BF27SN003377
Price drop
-$18,717
2025 Audi A6
quattro Premium Plus 55 TFSI
7,651 mi
Fairfield, CA
36 mi away
Good Deal
$68,393
$49,676
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Glacier White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 19,487
- Stock #:
- AZ13440
- VIN:
- WAUM2BF29PN067979
2023 Audi A6
quattro Prestige 55 TFSI
19,487 mi
Concord, CA
18 mi away
Fair Deal
$45,999
- Year:
- 2024
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Arkona White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 16,806
- Stock #:
- N004912L
- VIN:
- WAUD3BF23RN004912
2024 Audi A6
quattro Premium 45 TFSI
16,806 mi
Palo Alto, CA
18 mi away
Good Deal
$33,584
- Year:
- 2022
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 35,949
- Stock #:
- NN014478
- VIN:
- WAUM2BF21NN014478
2022 Audi A6
quattro Prestige 55 TFSI
35,949 mi
Fremont, CA
16 mi away
Fair Deal
$36,495
- Year:
- 2021
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 39,024
- Stock #:
- 70067610
- VIN:
- WAUK2AF20MN027237
2021 Audi A6
quattro Premium 55 TFSI AWD
39,024 mi
Store transfer to Pleasanton, CA
Price includes $399 shipping
Great Deal
$29,397
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Glacier White Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 41,622
- Stock #:
- N032334P
- VIN:
- WAUE3BF26PN032334
2023 Audi A6
quattro Premium Plus 45 TFSI
41,622 mi
Palo Alto, CA
18 mi away
Good Deal
$31,453
- Year:
- 2025
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Glacier White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 1,891
- Stock #:
- A48523R
- VIN:
- WAUE3BF20SN048523
2025 Audi A6
quattro Premium Plus 45 TFSI
1,891 mi
Livermore, CA
18 mi away
Great Deal
$44,070
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 13,384
- Stock #:
- PN031702
- VIN:
- WAUE3BF24PN031702
2023 Audi A6
quattro Premium Plus 45 TFSI
13,384 mi
Fremont, CA
16 mi away
Good Deal
$37,338
- Year:
- 2024
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Brilliant Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 46,877
- Stock #:
- N026445A
- VIN:
- WAUL2BF20RN026445
2024 Audi A6
quattro Premium Plus 55 TFSI
46,877 mi
Fremont, CA
16 mi away
Good Deal
$28,560
- Year:
- 2025
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Mythos Black Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 5,809
- Stock #:
- 12604L
- VIN:
- WAUE3BF2XSN042678
2025 Audi A6
quattro Premium Plus 45 TFSI
5,809 mi
San Jose, CA
28 mi away
Good Deal
$45,835
- Year:
- 2024
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Madeira Brown Metallic
- Fuel type:
- Gasoline
- Interior color:
- Brown (Pearl Beige)
- Transmission:
- 7-Speed Automatic
- Mileage:
- 19,995
- Stock #:
- 18093X
- VIN:
- WAUE3BF24RN005894
2024 Audi A6
quattro Premium Plus 45 TFSI
19,995 mi
Home delivery from Roseville, CA
Price includes $105 shipping
Good Deal
$36,404
- Year:
- 2025
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Chronos Gray Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 6,283
- Stock #:
- N030138L
- VIN:
- WAUD3BF21SN030138
2025 Audi A6
quattro Premium 45 TFSI
6,283 mi
Palo Alto, CA
18 mi away
Fair Deal
$43,984
- Year:
- 2024
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Black
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Dual Clutch
- Mileage:
- 45,538
- Stock #:
- RM70147
- VIN:
- WAUE3BF22RN040384
Price drop
-$700
2024 Audi A6
quattro Premium Plus 45 TFSI
45,538 mi
Home delivery from Rosemead, CA
Price includes $337 shipping
Great Deal
$27,832
$27,132
- Year:
- 2021
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Brown (Carat Beige Metallic)
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Pearl Beige)
- Transmission:
- Automatic
- Mileage:
- 37,054
- Stock #:
- PMN048578
- VIN:
- WAUM2AF29MN048578
New arrival
2021 Audi A6
quattro Prestige 55 TFSI AWD
37,054 mi
San Rafael, CA
29 mi away
Great Deal
$32,388
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 42,162
- Stock #:
- 28782391
- VIN:
- WAUE3BF23PN006449
New arrival
2023 Audi A6
quattro Premium Plus 45 TFSI
42,162 mi
Store transfer to Pleasanton, CA
Price includes $1,999 shipping
Fair Deal
$33,997
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Mythos Black Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 13,866
- Stock #:
- P008454
- VIN:
- WAUE3BF26PN008454
2023 Audi A6
quattro Premium Plus 45 TFSI
13,866 mi
Home delivery from Plano, TX
Price includes $1,455 shipping
Good Deal
$37,679
- Year:
- 2024
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 44,428
- Stock #:
- 033434
- VIN:
- WAUL2BF28RN033434
2024 Audi A6
quattro Premium Plus 55 TFSI
44,428 mi
Home delivery from Dallas, TX
Price includes $2,184 shipping
Fair Deal
$35,183
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Chronos Gray Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 22,888
- Stock #:
- 34856A
- VIN:
- WAUE3BF22PN049227
2023 Audi A6
quattro Premium Plus 45 TFSI
22,888 mi
Dublin, CA
11 mi away
Fair Deal
$36,083
- Year:
- 2021
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Firmament Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 32,518
- Stock #:
- 11071
- VIN:
- WAUL2AF2XMN037116
2021 Audi A6
quattro Premium Plus 55 TFSI AWD
32,518 mi
Home delivery from Berwyn, IL
Price includes $1,282 shipping
Great Deal
$32,381
- Year:
- 2025
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Daytona Gray Pearl Effect
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 11,274
- Stock #:
- L1511
- VIN:
- WAUL2BF20SN032588
Price drop
-$1,662
2025 Audi A6
quattro Premium Plus 55 TFSI
11,274 mi
Home delivery from Seaside, CA
Price includes $98 shipping
Good Deal
$47,906
$46,244
- Year:
- 2022
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 35,949
- Stock #:
- NN014478
- VIN:
- WAUM2BF21NN014478
Sponsored Listing
2022 Audi A6
quattro Prestige 55 TFSI
35,949 mi
Fremont, CA
16 mi away
Fair Deal
$36,495
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