2005 Audi A6 Resale Values
| Mileage | Trade-In-Value | Retail Value |
| Clean | Average | Rough | Excellent | Clean | Average | Rough |
| 1 - 18,000 | $24,360 | $22,110 | $16,411 | $28,785 | $27,670 | $24,545 | $20,190 |
| 18,001 - 25,000 | $24,260 | $22,010 | $16,411 | $28,685 | $27,570 | $24,445 | $20,190 |
| 25,001 - 30,000 | $24,160 | $21,910 | $16,411 | $28,510 | $27,470 | $24,345 | $20,190 |
| 30,001 - 40,000 | $23,985 | $21,810 | $16,411 | $28,335 | $27,295 | $24,245 | $20,190 |
| 40,001 - 50,000 | $23,810 | $21,635 | $16,411 | $27,585 | $27,120 | $24,070 | $20,190 |
| 50,001 - 60,000 | $22,985 | $21,460 | $16,411 | $26,760 | $26,295 | $23,895 | $20,190 |
| 60,001 - 70,000 | $22,210 | $20,585 | $16,411 | $26,110 | $25,520 | $23,020 | $20,190 |
| 70,001 - 85,000 | $21,585 | $19,835 | $15,436 | $25,535 | $24,895 | $22,270 | $19,215 |
| 85,001 - 100,000 | $20,985 | $19,210 | $14,761 | $28,335 | $24,295 | $21,645 | $18,540 |
| 100,001 - 115,000 | $20,385 | $18,610 | $14,161 | $28,335 | $23,695 | $21,045 | $17,940 |
| 115,001 - 130,000 | $23,810 | $18,060 | $13,586 | $28,335 | $27,120 | $20,495 | $17,365 |
| 130,001 - 999,999 | $23,810 | $17,585 | $13,086 | $28,335 | $27,120 | $20,020 | $16,865 |
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