Audi / 2016-2024 / 4 min read
Audi A4 2016-2024 common problems before buying used
The B9 Audi A4 feels modern, refined, and premium used. Premium feel can hide S tronic behavior, EA888 coolant leaks, diesel emissions faults, MMI issues, and quattro tyre sensitivity.
Why buyers get caught
Premium feel can hide S tronic behavior, EA888 coolant leaks, diesel emissions faults, MMI issues, and quattro tyre sensitivity.
Common problems to check
S tronic or automatic judder
Low-speed judder, hesitation, or harsh engagement should be tested carefully.
Coolant and water-pump leaks
EA888 and related cooling-system leaks are worth checking through smell, level, residue, and invoices.
Diesel DPF, EGR, and AdBlue faults
Diesel cars need clear emissions repair history and use-pattern evidence.
MMI, sensors, and driver aids
Screen, camera, parking sensor, virtual cockpit, and driver-assistance faults should be tested.
Suspension, brakes, and water ingress
Worn arms, uneven tyres, EPB faults, sunroof drains, and boot dampness affect value.
Ask before you travel
- Which engine and gearbox are fitted?
- Any S tronic service, coolant, water-pump, DPF, EGR, or AdBlue work?
- Is it quattro, and are tyres matching?
- Any MMI, camera, sensor, or water-leak faults?
Discount hard or walk away if
- Gearbox judder with no service proof.
- Coolant evidence around a clean engine bay.
- Diesel warnings with vague history.
- Quattro car with mismatched tyres.
Should you buy the guide?
Use this article to filter weak adverts and ask better questions. Buy the guide when you have a real Audi A4 2016-2024 to inspect, compare, or negotiate on.
The full Audi A4 2016-2024 guide keeps the exact check order, cost ranges, negotiation notes, and production-year guidance together. This free page is the shortlist overview; the guide is the tool to use at the car.