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2021 Audi A6 55 TFSI

The 2021 Audi A6 55 TFSI is a 335-hp 3.0-liter turbocharged V6 with a 7-speed s tronic dual-clutch automatic. It starts at $59,800 MSRP and is rated at 24 mpg combined.

It makes 335 horsepower and 369 lb-ft of torque. EPA fuel-economy estimates are 22 mpg city and 29 mpg highway (24 mpg combined).

The A6 measures 194.4 inches long on a 115.1-inch wheelbase and has a curb weight of 4,266 lb.

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Price
MSRP$59,800
MSRP with Destination$60,845
Destination Charge$1,045
Engine
Engine Type3.0 TFSI turbocharged V6
Displacement3 L
Horsepower335 hp
Torque369 lb-ft
Valvetrain24-valve DOHC with Audi valvelift and variable timing
Bore and Stroke84.6 x 89.0
Compression Ratio11.2:1
Drivetrain
Drive Typequattro with ultra technology
Differential Typequattro with ultra (electronically controlled multi-plate clutch)
Transmission
Transmission7-speed S tronic dual-clutch automatic
1st Gear3.188
2nd Gear2.19
4th Gear1.057
5th Gear0.738
6th Gear0.508
7th Gear0.386
Reverse2.75
Final Drive4.41
Fuel Economy
City22 MPG
Highway29 MPG
Combined24 MPG
Recommended FuelPremium
Tank Capacity19.3 gal
Suspension
Front SuspensionFive-link independent steel spring
Rear SuspensionFive-link independent steel spring
Turning Diameter36.4 ft
Brakes
Front Brake Disc13.3 in
Rear Brake Disc13.0 in
Dimensions & Weight
Length194.4 in
Width74.3 in
Height57.4 in
Wheelbase115.1 in
Front Track64.2 in
Rear Track63.7 in
Cargo Volume13.7 ft³
Curb Weight4,266 lbs
Interior
Headroom Front38 in
Headroom Rear38.1 in
Legroom Front41.3 in
Legroom Rear37.4 in
Shoulder Room Front57.8 in
Shoulder Room Rear56.5 in

Safety & Recalls

NCAP safety ratings

Overall ★★★★★
Frontal crash ★★★★★
Side crash ★★★★★
Rollover ★★★★★ (8.9 % risk)
Tested variant: 2021 Audi A6 4 DR AWD

Recalls

11 recalls on file with NHTSA for the 2021 Audi A6. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

Dec 19, 2025 · BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Consequence: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.

Remedy: Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90TV. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.

NHTSA campaign 25V900000

Mar 31, 2025 · ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 SQ8, A6 SEDAN, A7, A8, Q7, Q8, RS6 Avant, RS7, RSQ8, S6 SEDAN, S7, S8, A6 Allroad, and SQ7 vehicles. Due to a software error, the instrument panel display may fail.

Consequence: An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.

Remedy: Dealers will update the instrument panel module software, free of charge. Owner notification letters were mailed April 24, 2025. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90VC.

NHTSA campaign 25V201000

Aug 25, 2023 · SERVICE BRAKES, HYDRAULIC:FLUID

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi S7, S6 Sedan, RS7, RS6 Avant, A6 Allroad, 2019-2021 A7, and A6 Sedan vehicles. An incorrectly labeled brake fluid cap may have been installed, which can result in the use of the wrong type of brake fluid.

Consequence: Incorrect brake fluid can reduce braking ability and increase the risk of a crash.

Remedy: Dealers will inspect the brake fluid reservoir cap and, if necessary, replace it, free of charge. Owner notification letters are expected to be mailed October 17, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 47T9.

NHTSA campaign 23V601000

Nov 21, 2022 · ELECTRICAL SYSTEM

Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.

Consequence: A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.

Remedy: Dealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 90V2.

NHTSA campaign 22V861000

Oct 5, 2022 · BACK OVER PREVENTION:DISPLAY FUNCTION

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Consequence: A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.

Remedy: Dealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 91DZ.

NHTSA campaign 22V742000

Mar 14, 2022 · ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.

Consequence: An inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.

Remedy: Dealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 20DN.

NHTSA campaign 22V155000

Jan 26, 2022 · TIRES

Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.

Consequence: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.

Remedy: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.

NHTSA campaign 22V034000

Aug 5, 2021 · SEAT BELTS:REAR/OTHER:RETRACTOR

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Consequence: An unsecured child restraint system can increase the risk of injury during a crash.

Remedy: Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021. Owners may contact Volkswagen customer service at 1-800-893-5298 and Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are 69CR (VW) and 69CS (Audi).

NHTSA campaign 21V606000

Apr 26, 2021 · SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.

Consequence: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.

Remedy: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.

NHTSA campaign 21V295000

Mar 10, 2021 · AIR BAGS

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi RS6 Avant, RS7, 2020-2021 A6 Allroad, S6 Sedan, S7, 2019-2021 A6 Sedan, and A7 vehicles. The score line on the passenger air bag may not have been manufactured correctly.

Consequence: An incorrectly manufactured air bag may not deploy properly, and could also eject plastic debris into the passenger compartment, increasing the risk of injury during a crash.

Remedy: Audi will notify owners, and dealers will inspect the passenger air bag score line, and repair it as necessary, free of charge. The recall begin March 26, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 70i2.

NHTSA campaign 21V159000

Dec 2, 2020 · ELECTRICAL SYSTEM

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi A6 Allroad, Q7, RS6 and RS7 vehicles. The electrical connector can detach from the door crash sensor in either of the front doors.

Consequence: A detached connector can delay the activation of the restraint systems, including the side air bag, curtain air bag and/or seat-belt pretensioners during a side impact crash, increasing the risk of injury.

Remedy: Audi will notify owners, and dealers will inspect, and as necessary, replace the crash sensors in both front doors, free of charge. The recall began December 23, 2020. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69BM.

NHTSA campaign 20V749000

18 owner complaints to NHTSA for the 2021 Audi A6

Owner Complaints

18 owner complaints filed with NHTSA for the 2021 Audi A6. See all on nhtsa.gov

Most-cited areas
Electrical System11
Engine3
Forward Collision Avoidance2
Power Train2
Unknown Or Other2
Engine And Engine Cooling1
A complaint can cite more than one area.
Most recent complaints
Oct 19, 2026 · Exterior Lighting
“Both daytime running lights have progressively changed from white to yellow and lost intensity. The discoloration began on one side and later appeared on the other, concentrated at the lower angled…”
Sep 21, 2026 · Electrical System, Engine, Fuel/Propulsion System
“While operating the vehicle under normal driving conditions, the vehicle suffered an immediate, un-commanded loss of engine power and throttle response. The vehicle displayed a critical dashboard…”
Sep 4, 2026 · Electrical System
“The vehicle went in for a software update. After purchasing the vehicle, the software update was part of a recall. Since that recall was performed, my vehicle has a lot of electronic glitches and a…”
May 15, 2026 · Unknown Or Other
“My 2021 Audi A6 produces a strong mold and mildew odor from the HVAC/air conditioning system. The smell occurs consistently after the air conditioning is turned off and persists when entering the…”
May 11, 2026 · Engine And Engine Cooling
“The contact owns a 2021 Audi A6. The contact stated while driving at an undisclosed speed, the vehicle overheated. The engine overheating and the low coolant warning light illuminated. In addition…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2021 AUDI A6. US-market vehicles only; data cached for up to 7 days.

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