Used (2025) Audi A4 S-Line 204 HP | Good price
-Avant 40 TDI 204 Quattro S Line
- 2025
- 23,630 miles
- Trim level: S-Line
- 2.0L Diesel
- Estate
- Automatic
- 204 HP (150 kW)
- mpg: 6
- CO2: 156 g CO2/km comb.
- Details
Good price
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Price checked by AutoUncle
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-Avant 40 TDI 204 Quattro S Line
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Used Audi A4
Factors that affect the depreciation of a Audi A4:
- Mileage driven
- Maintenance
- Service history
Depreciation is an important part of calculating the total cost of owning a Audi A4. In addition to the monthly depreciation of £122, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly cost.
Model year | Price range* | Avg. Price | Depreciation | Cars for sale |
|---|---|---|---|---|
2024 Audi A4 | £24,599 - £36,197 | £29,683 | -£3,780 | 77 |
2023 Audi A4 | £18,465 - £30,500 | £25,391 | -£2,300 | 225 |
2025 Audi A4 | £14,995 - £30,224 | £22,795 | -£2,540 | 135 |
2022 Audi A4 | £17,698 - £27,892 | £22,572 | -£1,460 | 234 |
2021 Audi A4 | £14,500 - £25,122 | £20,512 | -£1,500 | 169 |
2020 Audi A4 | £14,500 - £22,599 | £18,899 | -£960 | 143 |
2019 Audi A4 | £11,495 - £21,650 | £16,488 | -£1,340 | 195 |
2018 Audi A4 | £7,999 - £22,000 | £14,180 | -£1,340 | 117 |
2017 Audi A4 | £7,500 - £21,480 | £12,426 | -£960 | 190 |
2016 Audi A4 | £6,795 - £16,000 | £10,494 | -£460 | 157 |
2015 Audi A4 | £4,620 - £11,995 | £8,009 | -£1,220 | 102 |
2014 Audi A4 | £4,395 - £11,995 | £7,636 | -£460 | 74 |
2011 Audi A4 | £2,999 - £10,000 | £6,527 | -£20 | 22 |
2012 Audi A4 | £3,495 - £10,990 | £6,243 | -£680 | 46 |
2013 Audi A4 | £3,495 - £9,995 | £6,116 | -£1,020 | 52 |
2010 Audi A4 | £750 - £11,995 | £5,649 | -£80 | 18 |
2009 Audi A4 | £995 - £7,995 | £3,956 | -£100 | 14 |
2005 Audi A4 | £1,295 - £8,750 | £3,756 | -£460 | 10 |
2008 Audi A4 | £1,495 - £5,995 | £3,531 | +£240 | 17 |
2007 Audi A4 | £1,150 - £5,999 | £2,832 | -£700 | 11 |
2006 Audi A4 | £750 - £8,990 | £2,740 | -£240 | 16 |
*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market
The data is based on the cars currently listed on AutoUncle
Last updated: 8 January 2026
Variant | Price range* | Avg. Price | Depreciation | Cars for sale |
|---|---|---|---|---|
Audi A4 Black Edition | £7,995 - £30,224 | £20,778 | -£4,360 | 582 |
🏆 The most popular Audi A4 S-Line | £4,495 - £28,694 | £16,994 | -£1,640 | 785 |
Audi A4 Comfort | £4,795 - £23,985 | £16,606 | -£1,340 | 107 |
Audi A4 Advanced | £4,450 - £28,976 | £14,092 | -£2,820 | 28 |
📈 The best value Audi A4 Design | £3,195 - £32,990 | £13,684 | +£1,160 | 35 |
Audi A4 Sport | £5,795 - £24,200 | £13,502 | -£1,140 | 257 |
Audi A4 Business | £4,495 - £17,990 | £11,081 | +£340 | 22 |
💰 The budget choice Audi A4 Performance | £2,295 - £20,490 | £9,356 | -£500 | < 10 |
*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market
The data is based on the cars currently listed on AutoUncle
Last updated: 8 January 2026
The Performance is the cheapest entry point with an average price of £9,356.
Accuracy will improve as more cars from this variant become available
There are the most S-Line for sale right now (785), which gives you the most options to choose from.
The Design has held its price stable with minimal loss in value over the past year (+£1,160).
Month | Average market price | Lowest market price | Highest market price | Calculation method |
|---|---|---|---|---|
| 2025 - January | £24,080 | £21,760 | £26,380 | Estimate |
| 2025 - February | £24,160↗ | £22,080 | £26,220 | Estimate |
| 2025 - March | £24,240↗ | £21,940 | £26,540 | Estimate |
| 2025 - April | £24,120↘ | £21,740 | £26,520 | Estimate |
| 2025 - May | £23,360↘ | £20,620 | £26,100 | Estimate |
| 2025 - June | £22,880↘ | £20,140 | £25,620 | Estimate |
| 2025 - July | £22,880→ | £20,360 | £25,400 | Estimate |
| 2025 - August | £22,280↘ | £19,680 | £24,900 | Estimate |
| 2025 - September | £22,580↗ | £19,980 | £25,200 | Estimate |
| 2025 - October | £22,960↗ | £20,580 | £25,340 | Estimate |
| 2025 - November | £22,760↘ | £20,360 | £25,160 | Estimate |
| 2025 - December | £22,620↘ | £20,480 | £24,780 | Estimate |
| 2026 - February | £22,520↘ | - | - | Forecast |
| 2026 - March | £22,480↘ | - | - | Forecast |
| 2026 - April | £22,420↘ | - | - | Forecast |
| 2026 - May | £22,380↘ | - | - | Forecast |
| 2026 - June | £22,320↘ | - | - | Forecast |
All estimates and forecasts are based on actual market data
Last updated: 8 January 2026
Average Monthly Depreciation
A summary of the past 12 and an estimation of the next 6 months.
Past 12 months
-£1,460
Next 6 months
-£300
Price checked by AutoUncle
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A bit pricey
Expensive
The Audi A4 is celebrated for its impressive driving comfort and proudly showcases numerous design accolades. AutoUncle presents an impressive 2,431 options in the UK, each one sourced from an online marketplace or dealership website.
The oldest and cheapest Audi A4 here on AutoUncle is available for £3,690, and the newest and most well-equipped model costs around £28,991.
The popular Audi A4 can cost different determined by mainly five factors: the year of the car, engine capacity and performance, the car's fuel consumption, how many miles the car has travelled as well as the vehicle's equipment variant.
For instance, a younger model with a lower number on the odometer, or higher-end models with more potent engines will generally cost more than, for example, an older model with more kilometres driven or with a lower equipment level.
The Audi A4 comes in an assorted selection of trim options, tailored to suit various driver predilections and needs. The most popular ones are:
When looking for the best car deal for a used Audi A4, it is important that you only compare with the offers of cars with a similar engine and equipment. If not, you might reach a wrong decision on which car to buy.
The Audi A4 most commonly uses diesel as its fuel type.
Fuel types for Audi A4:
Your current driving habit is a determining factor when it comes to picking a fuel type. Do you only use your car to get to and from work? Is the distance less than roughly 35 miles each way?
Electric, plug-in hybrid and petrol work well for short trips. If you drive long distances on a daily basis, an electric car is good - especially if you can charge at home or at work. For longer daily commutes, a modern electric car is often suitable - especially if you can charge at home or at work. If you often drive long distances and can't charge, diesel can still be a viable option. Consider that in many countries, cities have banned the entry of diesel engines with high emissions.
Sedan is the preferred body type amongst drivers of the Audi A4. Saloons usually have 4 doors, making this body type a good choice for families. Characterised by its enclosed passenger area and separate boot, a saloon offers ample interior space, ensuring comfort for both drivers and passengers.
Despite being a really The Audi A4 faces several rivals.
Most popular alternatives to the Audi A4
With a current inventory of 3,001 available models on AutoUncle, the BMW 320 stands out as the top alternative to the Audi A4. On average, the BMW 320 costs £19,489.
The MG ZS is another popular choice in this segment, with 2,372 cars for sale and an average price of £13,992. Another good choice for an alternative car is the Audi A5 with 1,948 cars for sale for the average price of £24,350.
Not fixed on the Audi A4? Here are some electric options in the same segment::
Can't seem to locate an electric car that matches your needs? Browse our full range of electric cars here.