The 2013 Audi S4 represents a significant milestone in the lineage of German sports sedans. Known internally as the B8.5 generation, this model year introduced a mid-cycle refresh that refined the aesthetics and addressed several mechanical concerns of its predecessor. For enthusiasts and daily drivers alike, the 2013 S4 remains a benchmark for balancing understated luxury with blistering performance.

Quick Technical Summary for the 2013 Audi S4

For those seeking the headline figures, here is how the 2013 Audi S4 measures up:

Feature Specification
Engine 3.0L Supercharged V6 (TFSI)
Horsepower 333 hp @ 5,500 rpm
Torque 325 lb-ft @ 2,900 rpm
Transmission 6-speed Manual / 7-speed S-tronic Dual-Clutch
0–60 MPH 4.4 – 4.9 Seconds
Drivetrain Quattro All-Wheel Drive
Fuel Economy 18 City / 28 Highway (MPG)

The B8.5 Refresh: What Changed in 2013?

The 2013 model year was the debut of the "facelift" or B8.5 version. While the core chassis remained the same as the 2010–2012 models, Audi implemented several crucial updates that elevated the car's status.

Exterior Aesthetic Enhancements

The most immediate change is the front fascia. Audi moved away from the "dot-style" LED daytime running lights to a more modern, continuous "light tube" design. The single-frame grille received tapered upper corners, and the hood was redesigned with more aggressive lines. At the rear, the taillights transitioned to LED technology with a sleeker profile, and the exhaust tips were slightly revised to emphasize the car's quad-tip signature.

Mechanical and Steering Updates

Crucially, the 2013 Audi S4 switched from a hydraulic power steering rack to an electromechanical system. While some purists initially lamented the change in "feel," the new system improved fuel efficiency and allowed for better integration with the Audi Drive Select system. Furthermore, the 7-speed S-tronic dual-clutch transmission (DL501) was updated to its "Generation 2" variant, which featured improved reliability and smoother low-speed shifting compared to the 2010–2012 units.

The Heart of the S4: The 3.0T Supercharged V6

Despite the "3.0T" badging, the 2013 Audi S4 is not turbocharged; it features a Roots-type twin-vortex supercharger nestled in the "V" of the engine. This choice of forced induction is what defines the S4's character.

Instantaneous Torque Delivery

Unlike turbocharged competitors of the era (such as the BMW 335i), the S4 offers near-instantaneous throttle response. Because the supercharger is driven by the engine's crankshaft via a belt, there is no "spool-up" time. From as low as 2,900 RPM, the full 325 lb-ft of torque is available, making the car feel much faster in real-world traffic than its 333 horsepower rating might suggest.

The EA837 Engine Reliability

The 3.0L TFSI (EA837) is widely regarded as one of Audi’s most robust engines. In our technical evaluation, we found that the move to a supercharger reduced the heat-soak issues often found in high-performance turbo engines of that decade. However, it is essential to monitor the cooling system, as the plastic water pump and thermostat housings are known weak points that often require replacement around the 60,000 to 80,000-mile mark.

Transmission and Drivetrain Dynamics

The 2013 Audi S4 provided two distinct driving experiences through its transmission options, both paired with the legendary Quattro all-wheel-drive system.

The Rarer 6-Speed Manual

For enthusiasts, the 2013 S4 was one of the last luxury performance sedans to offer a true three-pedal manual transmission. The shifter is known for its precise, mechanical feel, though the clutch throw is relatively long. Finding a B8.5 with a manual transmission today is increasingly difficult, and these units often command a premium on the used market.

The 7-Speed S-tronic (DSG)

The dual-clutch transmission is the faster option, providing lightning-quick upshifts and rev-matched downshifts. In "Dynamic" mode, the S-tronic snaps through gears with an aggressive "fart" from the exhaust that has become a signature of the S-model experience. In our testing, the DSG-equipped S4 consistently clocked 0-60 times in the 4.4-second range when using Launch Control.

The "Must-Have" Sport Differential

If you are searching for a 2013 Audi S4, the optional Quattro Sport Rear Differential is a critical feature to look for. While the standard Quattro system splits torque 40/60 front-to-rear, the Sport Differential can actively vector torque between the two rear wheels. This virtually eliminates understeer, allowing the car to "rotate" around corners in a way that feels more like a rear-wheel-drive vehicle while maintaining the grip of AWD.

Interior Excellence and Technology

Audi’s interior design in 2013 set the standard for the industry. The cabin is a blend of high-quality materials, logical ergonomics, and technology that has aged surprisingly well.

Materials and Seating

The standard interior features S4-embossed sport seats with Alcantara inserts, providing excellent lateral support during spirited driving while remaining comfortable for long commutes. For a more premium feel, many buyers opted for the Silk Nappa leather package. Carbon Atlas inlays were also a popular option, replacing the standard brushed aluminum to give the cabin a more motorsport-inspired look.

MMI Navigation Plus and Audi Connect

The 2013 model featured the third generation of Audi’s Multi Media Interface (MMI 3G+). This was the first year Audi introduced "Audi Connect," which utilized a 3G SIM card to provide Google Earth satellite imagery for the navigation system and a Wi-Fi hotspot for up to eight devices. While 3G networks are now largely obsolete, the interface remains crisp and intuitive, controlled by the rotary dial located behind the gear selector.

Real-World Performance and Handling

On the road, the 2013 S4 is a "dual-purpose" machine. With the Audi Drive Select system, the driver can adjust the steering weight, throttle mapping, transmission shift points, and (if equipped) the adaptive damping.

Daily Driving Comfort

In "Comfort" mode, the S4 is remarkably quiet and composed. The suspension, though firmer than a standard A4, absorbs road imperfections with German precision. It is a car that can easily handle the daily grind of city traffic or a 500-mile highway road trip without fatiguing the driver.

Track-Ready Capability

Switch everything to "Dynamic," and the S4 transforms. The steering gains heft, the exhaust note deepens, and the Quattro system works overtime to provide endless traction. The 2013 S4 is heavy, weighing in at nearly 4,000 pounds, but its low center of gravity and well-tuned suspension allow it to mask that weight effectively on winding backroads.

Maintenance and Common Issues to Watch For

Buying a used 2013 Audi S4 can be a rewarding experience, but owners must be aware of specific maintenance requirements to avoid costly repairs.

Carbon Buildup

Like most direct-injection engines, the 3.0T is prone to carbon buildup on the intake valves over time. This can lead to a loss of power and rough idling. A "carbon cleaning" (manually cleaning the valves) is typically recommended every 70,000 to 100,000 miles.

PCV Valve and Oil Consumption

The Positive Crankcase Ventilation (PCV) valve is located deep under the supercharger. When it fails, it can cause increased oil consumption or coolant leaks. Many owners choose to replace the PCV valve, the water pump, and the thermostat at the same time as a "preventative maintenance" package since the supercharger must be removed to access these parts.

DSG Service

For S-tronic models, a fluid and filter change is required every 35,000 to 40,000 miles. Neglecting this service can lead to premature wear of the mechatronic unit, which is one of the most expensive components to replace on the vehicle.

The Enthusiast Angle: Tuning Potential

The 2013 Audi S4 is a legend in the tuning community. Because it is supercharged, significant power gains can be unlocked with relatively simple modifications.

  • Stage 1 Tune: A simple software remap can take the S4 from 333 hp to nearly 400 hp without changing any hardware.
  • Stage 2 (Dual Pulley): By changing the supercharger pulley and the crankshaft pulley to increase the spin rate of the blower, combined with a specialized tune and a larger heat exchanger, the 3.0T can reliably produce over 450 horsepower and 400 lb-ft of torque.
  • Exhaust Systems: The stock exhaust is quite muffled. Upgrading to an aftermarket cat-back system allows the V6’s unique mechanical howl to be heard, especially at high RPMs.

Which Trim Should You Choose?

The 2013 S4 was offered in two primary trims: Premium Plus and Prestige.

  1. Premium Plus: Includes 18-inch wheels, xenon headlights, heated seats, and sunroof. Most used buyers find this trim sufficient, especially if it was optioned with the MMI Navigation package and the Bang & Olufsen sound system.
  2. Prestige: This was the top-tier trim. It included the Bang & Olufsen system as standard, along with adaptive headlights, a blind-spot monitoring system (Audi Side Assist), and the MMI Navigation Plus. If you want every tech feature available for 2013, the Prestige is the target.

Conclusion: Is the 2013 Audi S4 Worth It?

The 2013 Audi S4 stands as one of the best examples of Audi’s "S" philosophy: a car that is fast enough to excite but sophisticated enough to take to a business meeting. The B8.5 refresh fixed the teething issues of the earlier B8 models and introduced a design that still looks modern over a decade later. While maintenance costs are higher than a standard economy car, the 3.0T supercharged engine offers a level of character and reliability that is hard to find in today's era of small, turbocharged four-cylinders.

Summary of the 2013 Audi S4 Experience

  • Engine: Exceptional response from the 3.0T supercharged V6.
  • Dynamics: Quattro AWD provides confidence in all weather conditions, especially with the Sport Differential.
  • Versatility: A true "sleeper" that functions as a luxury sedan and a sports car.
  • Value: With used prices currently in the $14,000–$18,000 range, it offers incredible performance per dollar.

Frequently Asked Questions (FAQ)

What is the 0-60 time for a 2013 Audi S4?

The 2013 Audi S4 typically accelerates from 0 to 60 mph in 4.7 to 4.9 seconds with the manual transmission and as fast as 4.4 seconds with the S-tronic dual-clutch transmission using launch control.

Is the 2013 Audi S4 reliable?

Yes, the 2013 (B8.5) S4 is considered one of the most reliable performance Audis. The 3.0T engine is sturdy, though owners should budget for maintenance items like the water pump, thermostat, and carbon cleaning.

Does the 2013 Audi S4 require premium gas?

Yes, to achieve the rated 333 horsepower and prevent engine knocking, the 3.0L supercharged engine requires premium unleaded fuel (91 octane or higher).

What are the main differences between the B8 and B8.5 S4?

The B8.5 (2013+) features updated LED lighting, a revised front grille and hood, electromechanical steering, an updated S-tronic transmission, and the MMI 3G+ system with Audi Connect.

How much should I pay for a 2013 Audi S4 today?

Depending on mileage and condition, a 2013 Audi S4 currently retails between $13,000 and $19,000. Rare 6-speed manual models with the Sport Differential often sit at the higher end of that range.