Used Audi A4 B9 petrol: strengths, inspection points and market context

An A4 B9 listing can look clearer than the purchase decision really is. First confirm that it is a 2015–2024 petrol saloon or Avant. The engine, gearbox, drivetrain, mileage and service invoices need to match that exact variant.

This guide covers German-market Audi A4 B9 saloons and Avants with petrol engines from 2015–2024. It does not assess the B8, diesel, g-tron, plug-in-hybrid, S4, RS4 or allroad variants, or other generations and powertrains.

Before the viewing, clarify these points: 1. Confirm the body and year: B9 saloon or Avant, petrol, from 2015–2024? 2. Ask for the engine, gearbox and drivetrain details plus service invoices with dates and mileage. 3. On a quattro car, clarify tyre make, size, age and wear, then include the axle suspension and spring-damper units in the inspection. 4. Have the Audi recall status checked separately against the VIN; the KBA model row is not enough.

If you already have one concrete listing, a Listing Audit can help sort the visible information, missing evidence, and next seller questions before you travel.

In its used-car information for the 2015–2024 petrol Audi A4, ADAC lists excellent build quality, fine materials, safe and agile handling, high reliability and functional controls among the strengths.

ADAC says the A4 offers generous space in front but is relatively tight in the rear and luggage area for its class. Axle suspension and spring-damper units are occasional inspection findings. The breakdown statistics rate first-registration years through 2022 very highly; that does not establish the condition of an individual car or the same statistical result for 2023 or 2024.

Our editorial view: an A4 B9 can suit buyers who value build quality, comfort and a composed daily car. Try the space, controls and equipment yourself. Vehilo did not road-test a car for this article; this interpretation is based on the cited ADAC information, not an in-house road test.

FAQ snapshot dated 4 September 2026: AutoScout24's Audi A4 B9 category reported about 5,604 offers and 624 new offers in the previous seven days. Median asking price was €24,356, with the middle 50% at €19,960–€28,882. Dealer listings made up 87% and private listings 13%.

That category is broader than this guide: it mixes saloons, Avants and other versions, along with petrol, diesel and hybrid listings across different years and mileage bands. These figures are not a matched A4 B9 petrol price range, verified sales volumes or transaction prices, or a value or resale forecast.

Our market view: the large advertised stock gives buyers comparison options, but only after narrowing the cohort. Compare body style, year, TFSI variant, gearbox, drivetrain, mileage, condition and seller type. One snapshot cannot establish an upward or downward trend.

The public KBA CSV checked on 4 September 2026 contains recall row 6595 with manufacturer code 72G1, published on 28 November 2016. It names Audi A4 and production year 2016. An incorrectly executed weld on the seat back may increase injury risk in a rear impact. The recorded remedy is to inspect the front-seat-back frame or frames and replace them if necessary; the entry is marked “überwacht” (monitored).

The row does not identify the B9 generation, body style, petrol engine, trim or an individual VIN. It does not prove that every 2016 A4 is affected or that a particular car is repaired or clear. It is not a complete recall list for the A4 B9. Before buying, ask an Audi partner or the relevant manufacturer route to check the VIN and provide evidence of completed work.

The main inspection areas are: 1. Axle suspension and spring-damper units 2. Gearbox variant, shift behaviour and matching service evidence 3. quattro, tyre wear and alignment 4. MMI, sensors and assistance functions

Our view: ADAC's strengths describe the series, not the condition of an individual car. Separate the source findings, seller evidence and open inspection points. The AutoScout24 snapshot is not a valuation, and the KBA row is not a VIN check.

Questions for the seller: 1. Do the records clearly identify the B9 saloon or Avant, year, TFSI engine, gearbox and drivetrain? 2. Which invoices document engine and gearbox servicing and larger repairs? 3. On a quattro car, do tyre make, size, age and wear form a credible set? 4. Do the MMI, sensors, assistance and comfort equipment work as described? 5. Has the VIN been checked for open or completed Audi recalls, and is there evidence of the result?

Inspection priorities on site: 1. Check the axle suspension and spring-damper units for play, noise and leaks. 2. Test the gearbox cold, warm and while manoeuvring, then match the evidence to the exact variant. 3. Assess tyre wear, brakes and alignment; on quattro cars, pay particular attention to a coherent tyre set. 4. Check the cold start, fluid traces, fault memory, MMI, sensors and assistance functions. 5. Match the VIN and recall evidence to the car and its records.

Slow down when these signals appear: 1. The B9 generation, body, year or petrol variant remains unclear. 2. Maintenance claims do not fit the engine, gearbox, mileage or invoices. 3. Axle or damper noise comes with uneven tyre wear and thin documentation. 4. The VIN recall question is answered only with a general model list. 5. The price comparison mixes diesel, allroad, S/RS or substantially different years and mileage.

Does KBA 6595 / 72G1 automatically apply to every A4 B9?

No. The row names Audi A4 and production year 2016, but not the B9 generation, body style, petrol engine, trim or an individual VIN. Check the individual status through Audi and ask for evidence of completed work.

Is the AutoScout24 median a fair price for my A4?

No. The category mixes body styles, fuels, years and mileage bands. The median is a dated asking-price measure for the broader market, not a valuation of your specific petrol car.

The evidence tiers separate authority or manufacturer sources from buyer guides and owner-reported patterns. Reddit, YouTube, and forums help discover questions for research, but they are not used as standalone proof for public defect claims.

This article is buyer guidance, not a technical diagnosis, workshop inspection, guarantee, legal advice, or proof that a specific car has a fault. Model notes are inspection prompts. A specific car still needs history, condition, recall status, and qualified inspection context.