Quick answer: The 2021 Audi SQ5 is a luxury compact performance SUV powered by a 349-hp turbocharged 3.0L V6. Originally priced from $52,900, it delivers a 0-60 mph acceleration of 4.7 seconds. Key changes for the 2021 model year include a facelifted design, a new 10.1-inch MMI touchscreen, standard lane departure warning, and a new Sportback body style. While it excels as a comfortable, all-weather daily driver, used buyers should watch for common coolant leaks and a critical gateway control module recall.

Key takeaways:

• Strong V6 Performance: The turbocharged 3.0L V6 produces 349 hp and 369 lb-ft of torque, enabling a 4.7-second sprint to 60 mph with instant throttle response.
• Technology & Styling Updates: The 2021 refresh introduced revised exterior styling, standard lane departure warning, and replaced the rotary dial with a 10.1-inch MIB3 touchscreen.
• Gateway Module Recall: A safety recall (campaign 90S9) addresses gateway control module shutdowns caused by liquid spills under the rear seat, which can cause sudden engine shutoffs.
• Running Costs & Options: Expect a combined 20 mpg on premium fuel; option packages like the S Sport package and Prestige trim push used values higher.

The compact luxury performance SUV segment is fiercely competitive, appealing to enthusiasts who need the cargo space of a crossover but refuse to give up sports-car-like acceleration. The 2021 Audi SQ5 represents the mid-cycle refresh of the second-generation model, positioned as a faster, more aggressive version of the standard Q5.

Compared to the previous 2020 Audi SQ5, the 2021 model year brings crucial updates. It addresses technology deficiencies by introducing a touch-based infotainment interface and sharpens the styling to align with Audi’s latest design language. It remains a core pillar in the Audi SQ5 lineup, sitting alongside newer iterations like the 2022 Audi SQ5 and the 2023 Audi SQ5. For used car buyers, the 2021 model year represents a compelling sweet spot of modern technology and depreciation discount.

What is New for the 2021 Model Year?

The 2021 model year marked a significant update for the SQ5, bringing several styling, technology, and structural changes:

• MIB3 Infotainment: Audi replaced the old console-mounted rotary dial control system with a new 10.1-inch touchscreen running the MIB3 operating system. This touchscreen is faster and supports wireless Apple CarPlay and Android Auto.
• Exterior Styling: The front grille was updated with a new octagonal Singleframe design and sportier honeycombed inserts. The front and rear bumpers were reshaped, and the side sills were revised.
• OLED Taillights: Standard on the Prestige trim, these organic LED taillights feature customizable lighting signatures and a proximity indicator that illuminates if a vehicle approaches too closely from behind.
• Sportback Body Style: A new SQ5 Sportback variant debuted, offering a sloping, coupe-like roofline for buyers prioritizing styling over maximum rear cargo height.
• Driver Assistance: Lane departure warning became standard equipment across all trims, while adaptive cruise control and a 360-degree camera became standard on the mid-tier Premium Plus trim.

Key Specifications and Trim Levels

The 2021 Audi SQ5 is available in three trims for both the standard SUV and Sportback body styles. The original Manufacturer’s Suggested Retail Price (MSRP) figures below exclude options and the standard $1,095 destination charge.

Trim Pricing Structure

• Premium (MSRP: $52,900): Equipped with leather seats, 19-inch wheels, LED headlights, the 10.1-inch touchscreen, and lane departure warning.
• Premium Plus (MSRP: $57,300): Adds the 12.3-inch Virtual Cockpit, a panoramic sunroof, a heated steering wheel, a top-view 360-degree camera, and active lane assist.
• Prestige (MSRP: $62,500): Adds the Bang & Olufsen 3D sound system, head-up display, navigation, matrix-design LED headlights, heated rear seats, and OLED taillights.

Performance and Driving Dynamics

Under the hood of every 2021 SQ5 is Audi’s EA839 3.0-liter turbocharged V6 engine. Unlike older supercharged Audi engines, this unit uses a single twin-scroll turbocharger mounted in the "V" of the engine block. This layout minimizes the distance exhaust gases travel, resulting in rapid boost development. The engine delivers its full 369 lb-ft of torque at a low 1,370 rpm, providing immediate off-the-line response and effortless passing power.

The 8-speed Tiptronic torque-converter automatic transmission handles gear changes. It shift quickly and smoothly, avoiding the low-speed shutter sometimes associated with dual-clutch gearboxes.

The S Sport Package

To extract the best performance from this chassis, the optional S Sport Package is highly recommended. It adds three critical mechanical upgrades:

1. Adaptive Air Suspension: Replaces the standard steel springs and adaptive dampers. It lowers the ride height by 1.2 inches in dynamic mode and allows the vehicle to float comfortably over road imperfections in comfort mode.
2. Sport Rear Differential: A mechanical torque-vectoring rear differential that actively distributes power between the left and right rear wheels to help rotate the vehicle through corners.
3. Red Brake Calipers: Upgraded calipers for improved thermal capacity.

While the SQ5 is fast and handles flatly with the air suspension, steering feedback remains highly boosted and lacks feel. Drivers seeking a raw, connected steering experience will find the Porsche Macan or BMW X3 M40i more rewarding. However, for highway commuting, the SQ5 offers a more compliant, quieter ride than its stiffer rivals.

The standard Quattro permanent all-wheel-drive system distributes power in a default 40:60 front-to-rear split. It can send up to 70% of power to the front wheels or 85% to the rear wheels when slip is detected, providing confident traction in heavy rain and snow.

Interior Comfort, Cargo, and Technology

The cabin of the 2021 SQ5 features premium materials, including standard carbon atlas inlays and leather/Dinamica seats, which can be upgraded to fine Nappa leather with diamond stitching.

Interior Dimensions and Cargo Space

• Front Headroom: 38.1 inches
• Front Legroom: 40.9 inches
• Rear Headroom: 37.7 inches
• Rear Legroom: 38.0 inches
• Cargo Capacity (Seats Up): 25.8 cubic feet
• Cargo Capacity (Seats Folded): 54.0 cubic feet

Rear legroom is adequate for average-sized adults but is slightly tighter than the space found in the Genesis GV70. The Sportback variant sacrifices about 1 cubic foot of cargo space with the rear seats up (24.7 cubic feet) and roughly 2 cubic feet with the seats folded (51.9 cubic feet).

MIB3 Infotainment and Virtual Cockpit

The new MIB3 system is displayed on a high-resolution 10.1-inch center screen. Because the system is touch-only, Audi removed the rotary dial from the center console, replacing it with a small, open storage bin. While the screen is crisp, operating it on bumpy roads requires more driver attention than the old physical controls.

The standard 12.3-inch Virtual Cockpit digital instrument cluster remains a segment benchmark, offering crisp maps and customizable gauges, including an S-specific sport layout with a central tachometer.

Ownership Costs: Fuel, Tires, and Maintenance

Owning a used performance luxury SUV requires a realistic budget for ongoing operating expenses. The SQ5 demands premium unleaded fuel (91 octane or higher). At the EPA-estimated 20 mpg combined (18 city / 24 highway), a driver covering 15,000 miles per year will consume approximately 750 gallons of fuel annually, resulting in high fuel bills depending on current premium gas prices.

Tires and Brakes

The SQ5 is heavy (4,288 lbs) and powerful, which accelerates wear on consumable items:

• Tire Wear: Optional 21-inch wheels look impressive but use low-profile summer performance tires (typically Pirelli P Zero or Continental SportContact). These tires have soft tread compounds and often need replacement every 20,000 to 25,000 miles. A set of four replacement tires in this size can cost $1,400 or more. Opting for standard 20-inch wheels with all-season tires offers longer tread life and lower replacement costs.
• Brake Replacements: The front brakes utilize large six-piston calipers and heavy rotors. Replacing the front pads and rotors at an authorized dealership typically costs between $1,000 and $1,400.

Scheduled Maintenance

Audi requires service every 10,000 miles or 12 months, alternating between minor and major services. Minor services (oil change, safety inspections) cost $200-$300, while major services (including spark plug replacement and brake fluid flushes) range from $600-$900 at dealership rates. Utilizing a specialized independent German auto repair shop can reduce these maintenance costs by 20% to 30%.

Safety Ratings and Driver Assistance

Safety is a strong point for the Q5 platform, upon which the SQ5 is built.

IIHS and NHTSA Crash Test Results

The Insurance Institute for Highway Safety (IIHS) awarded the 2021 Audi Q5/SQ5 a Top Safety Pick+ rating, its highest honor. The vehicle earned "Good" ratings in all crashworthiness evaluations, including:

• Small overlap front (driver side)
• Small overlap front (passenger side)
• Moderate overlap front
• Side crash test
• Roof strength
• Head restraints and seats

The standard Audi Pre Sense Front system earned a "Superior" rating for vehicle-to-vehicle front crash prevention, avoiding collisions in tests at both 12 mph and 25 mph.

The National Highway Traffic Safety Administration (NHTSA) awarded the 2021 model a 5-star overall safety rating, scoring five stars in both frontal and side crash tests, and four stars in the rollover evaluation.

Headlight Differences

It is important to note that headlight performance varies by trim level. The IIHS rated the LED projectors on the Premium and Premium Plus trims as "Acceptable" due to minor glare, whereas the Matrix-design LED headlights on the Prestige trim received a "Good" rating.

Common Problems and Recalls to Watch

Used luxury vehicles require careful inspection to avoid expensive repair bills. If you are shopping for a used 2021 SQ5, verify that the following issues and recalls have been addressed:

The Gateway Control Module Recall (Recall Campaign: 90S9 / NHTSA ID: 21V947000)

This is the most critical safety recall for the 2018-2022 Q5 and SQ5 platform. The gateway control module is located in a vulnerable position under the rear seat. If liquid is spilled on the rear seat, or if water penetrates the cabin due to an insufficient underbody seal, the module can short-circuit. This causes a sudden loss of engine power (limp mode) or complete engine shutdown while driving.

• Remedy: Audi dealers must install a protective cover over the module and seal the underbody seam free of charge. Ensure this recall has been performed on any vehicle you consider.

Vacuum-Operated Water Pump and Thermostat Leaks

The EA839 3.0T engine is known for coolant leaks originating from the water pump and thermostat housing. The water pump uses a vacuum-actuated shroud to help the engine warm up faster. Over time, the internal seal can leak, allowing coolant to enter the engine vacuum lines. This can lead to thermostat failure, engine overheating, or vacuum solenoid damage (resulting in underboost codes like P0299). Inspect the front of the engine block for white crusty residue or a sweet coolant smell.

Intake Valve Carbon Buildup

Because this V6 uses direct fuel injection, fuel is sprayed directly into the combustion chamber rather than over the intake valves. Consequently, oil vapor from the PCV system bakes onto the intake valves over time, creating carbon deposits. This buildup can cause cold-start rough idles, misfires, and reduced top-end power, usually appearing between 60,000 and 80,000 miles. Cleaning the valves via walnut blasting is the standard remedy.

Infotainment MIB3 Screen Glitches

Some owners report the 10.1-inch MMI touchscreen freezing, displaying a blank black screen, or failing to connect to wireless Apple CarPlay. Many of these issues are resolved through dealer-installed software updates or by resetting the system (holding down the volume knob for 10 seconds).

Used Market Competitors Compared

When shopping for a 2021 model, it is helpful to compare it to key segment competitors. For those looking at other model years, you can read our reviews on the 2024 Audi SQ5 and the 2025 Audi SQ5.

Comparison Verdict

• BMW X3 M40i: The BMW’s B58 inline-six engine is more powerful, more fuel-efficient, and provides sharper steering and handling response. However, its suspension is noticeably stiffer, and its cabin design is less cohesive than the Audi’s.
• Mercedes-AMG GLC 43: The AMG GLC 43 offers a aggressive exhaust note and strong mid-range acceleration. However, its rear seat is cramped, and its interior plastics are prone to creaking over time.
• Genesis GV70 3.5T Sport: The Genesis offers excellent value, a longer warranty (which may not transfer fully to second owners), and a very quiet cabin. However, it lacks the prestige and high-speed highway poise of the German contenders.

Used Buying Advice: Is the 2021 Audi SQ5 Worth It?

The 2021 Audi SQ5 balances straight-line speed, premium cabin comfort, and winter traction. The adaptive air suspension (when optioned) is the defining feature of the vehicle, allowing it to transition from a comfortable family hauler to a sharp canyon carver.

However, it is not a low-maintenance vehicle. We do not recommend purchasing a used SQ5 that lacks a complete service history or shows signs of deferred maintenance.

• Buy a 2021 Audi SQ5 if: You want a fast, high-quality daily crossover with exceptional cabin tech, excellent seats, and secure winter traction, and you budget specifically for premium fuel and German vehicle maintenance.
• Look elsewhere if: You prioritize long-term reliability and low operating costs above all else, want steering with high feedback, or want the absolute fastest acceleration in this price bracket.

Frequently Asked Questions

Is the 2021 Audi SQ5 reliable?

The reliability of the 2021 Audi SQ5 is average for a German performance vehicle. The 3.0-liter turbocharged V6 engine and 8-speed Tiptronic transmission are mechanically durable when maintained with high-quality synthetic oil. However, owners should expect potential repairs for coolant pump leaks and carbon buildup around 60,000 miles. Ensuring the gateway control module recall (90S9) has been performed is essential.

How fast is the 2021 Audi SQ5?

The 2021 Audi SQ5 accelerates from 0 to 60 mph in 4.7 seconds and has an electronically limited top speed of 155 mph. Because its 369 lb-ft of torque is available from just 1,370 rpm, power delivery is immediate with virtually no turbo lag.

What is the difference between the Audi Q5 and SQ5?

The primary difference lies in the powertrain and chassis. The standard Q5 uses a 2.0-liter turbocharged four-cylinder engine making 261 hp, while the SQ5 features a 3.0-liter turbocharged V6 producing 349 hp. The SQ5 also gains upgraded six-piston front brakes, sportier exterior trim, quad exhaust tips, standard sport seats, and availability of the S Sport package with adaptive air suspension.

What fuel does the 2021 Audi SQ5 require?

The 2021 Audi SQ5 requires premium unleaded gasoline (91 octane or higher). Running the vehicle on regular unleaded fuel can reduce horsepower, decrease efficiency, and potentially cause engine knocking. Combined with an EPA rating of 20 mpg, fuel costs will be higher than standard crossovers.