Audi S4 Avant: 4.9s 0-62, 495L Cargo Space, 39.8 MPG

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Integrated MA, Certified Relationship Coach

The Audi S4 Avant stands out as a compelling choice for drivers who demand both exhilarating performance and everyday practicality. Powered by a robust diesel V6 engine paired with quattro all-wheel drive, this estate car accelerates from 0-62mph in just 4.9 seconds while offering ample cargo space and impressive fuel economy. Its understated design hides a chassis tuned for precision, making it a versatile option for long motorway cruises or spirited back-road drives.

Engine Power and Drivetrain Excellence

At the heart of the Audi S4 Avant lies a 3.0-liter V6 diesel engine producing 347 horsepower, enhanced by a 48-volt mild-hybrid system for smoother throttle response and better efficiency. This setup delivers torque across a broad rev range, ensuring strong pull from low speeds without the typical diesel lag. The engine mates to an eight-speed Tiptronic automatic transmission, which shifts seamlessly whether in comfort mode or full Sport setting.

Quattro all-wheel drive is standard, distributing power intelligently between the axles for exceptional traction. In wet or slippery conditions, it keeps the car planted, while the rear-biased setup allows for playful handling when pushing limits. Real-world tests confirm top speeds electronically limited to 155mph, with effortless overtaking on motorways thanks to the engine’s 500Nm of torque.

Dynamic Handling and Ride Quality

The S4 Avant’s chassis benefits from Audi’s MLB Evo platform, featuring a lighter, stiffer structure that improves balance and responsiveness. Standard adaptive dampers adjust firmness on the fly, providing a composed ride over undulating roads. While the suspension is firmer than a standard A4, it strikes a balance suitable for daily use, absorbing bumps without excessive harshness.

In corners, the car exhibits huge grip, with minimal body roll and precise steering feedback. The torque-vectoring rear differential enhances turn-in agility, making it feel more engaging than its subtle exterior suggests. However, some drivers note the steering lacks the sharp feel of rivals like the BMW M340i Touring, prioritizing stability over outright sportiness.

Performance MetricAudi S4 AvantBMW M340i TouringMercedes C43 Estate
0-62mph4.9 seconds4.5 seconds4.6 seconds
Top Speed155mph (limited)155mph (limited)155mph (limited)
Fuel Economy (WLTP)39.8mpg34.6mpg36.2mpg
CO2 Emissions166g/km191g/km182g/km

This table highlights the S4 Avant’s edge in efficiency over petrol-powered competitors, without sacrificing much straight-line speed.

Interior Refinement and Technology

Step inside the S4 Avant, and you’re greeted by Audi’s hallmark premium cabin. High-quality materials like soft leather, alcantara, and carbon-fiber accents create a sporty yet luxurious ambiance. The front sport seats offer extensive adjustability, heating, and ventilation as standard, with massage functions available on higher trims for long-haul comfort.

The Virtual Cockpit digital instrument cluster is intuitive, displaying navigation maps or performance data at a glance. A 10.1-inch touchscreen controls the infotainment system, supporting wireless Apple CarPlay and Android Auto. While the haptic feedback can take getting used to, the interface is logical and responsive. Rear passengers enjoy generous legroom and headroom, fitting three adults comfortably for shorter trips.

  • Standard features: MMI navigation, Bang & Olufsen sound system, matrix LED headlights.
  • Optional packs: Comfort and Sound (adds head-up display, upgraded audio).
  • Build quality: Exceptional fit and finish, with durable switchgear.

Practicality and Boot Space

As an Avant estate, practicality is a key strength. The boot offers 495 liters with seats up, expanding to 1,495 liters when folded flat. A hands-free power tailgate and low loading sill make it easy to load bulky items like bikes or golf bags. Roof rails are standard, supporting additional carriers for family adventures.

Unlike pure sports cars, the S4 Avant accommodates child seats securely in the rear, with ISOFIX points on outer positions. Fuel tank capacity provides a real-world range of around 400-500 miles, ideal for cross-country trips.

Running Costs and Ownership Experience

Despite its performance credentials, the S4 Avant impresses with running costs. Official WLTP figures quote 39.8mpg and 166g/km CO2, translating to Band G road tax in the UK. Real-world economy averages 35-40mpg in mixed driving, better than many petrol alternatives. Insurance groups hover around 42-45, reflecting its power.

Maintenance follows Audi’s schedule, with diesel reliability proven over high mileages. The mild-hybrid system reduces urban fuel use by recuperating energy. Resale values hold strong, with low-mileage examples retaining over 60% after three years.

Safety and Driver Assistance

Audi equips the S4 Avant with a comprehensive safety suite. Standard adaptive cruise control, lane-keeping assist, and traffic jam assist make motorway driving stress-free. Pre-sense front collision warning with autonomous emergency braking performs reliably in tests. Euro NCAP awarded the A4 range five stars, with the S4 benefiting from reinforced structure and advanced airbags.

  • Key aids: Blind-spot monitoring, rear cross-traffic alert, park assist.
  • Performance integration: Systems adapt to Sport mode for less intervention.

Trims, Pricing, and Rivals

Starting at around £50,000, the S4 Avant offers good value with generous equipment. Top trims add luxury like panoramic roofs and upgraded brakes. Rivals include the BMW M340i Touring for sharper dynamics and Mercedes C43 for plushness, but the Audi excels in all-weather usability.

Customization via Audi’s configurator allows personalization without excessive cost overruns. A well-specced model rarely exceeds £55,000.

Long-Term Ownership Insights

Owners praise the S4 Avant’s comfort on extended journeys, with supportive seats and quiet cruising. Diesel noise is present under hard acceleration but refined at steady speeds. Common praises include Android Auto integration for navigation and the car’s ability to handle family duties without compromise.

Potential drawbacks: Firmer low-speed ride and touchscreen-heavy controls. However, software updates have improved usability over time.

Frequently Asked Questions (FAQs)

Is the Audi S4 Avant reliable?

Yes, Audi’s diesel V6 has a strong track record, with many examples exceeding 100,000 miles without major issues when serviced properly.

How fuel-efficient is it?

Expect 35-42mpg in real-world driving, depending on conditions, outperforming petrol rivals.

What’s the boot space like?

495 liters seats up, 1,495 liters folded – ample for family or gear-heavy outings.

Does it have Apple CarPlay?

Yes, wireless Apple CarPlay and Android Auto are standard.

Is quattro worth it?

Absolutely, for superior grip in all conditions, especially UK weather.

Final Verdict

The Audi S4 Avant masterfully combines sports car thrills with estate car versatility. Its powerful diesel, secure handling, and premium interior make it a standout for performance-oriented families. While not the most playful in its class, its balance of speed, space, and efficiency is hard to beat.

References

  1. Audi S4 Avant estate review — Carbuyer. 2021-02-15. https://www.carbuyer.co.uk/audi/a4/s4-avant
  2. Audi S4 Avant Review 2026 | Performance & Pricing — Carwow. 2026. https://www.carwow.co.uk/audi/s4-avant
  3. Audi S4 Avant review: a half-price RS6? — Top Gear. N/A. https://www.topgear.com/car-reviews/audi/s4-tdi-quattro-5dr-tiptronic/first-drive-0
  4. Used Audi S4 Avant (2016 – 2024) review — Evo. N/A. https://www.evo.co.uk/audi/s4/avant
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