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The 2021 A4 has about average reliability compared to other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2021 Audi A4 owners. The owner comments describe problems respondents experienced with this vehicle.
Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.
Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.
""Dealer says that the car needs an alignment, but wants $700 for the job. Will do elsewhere for less""
Anonymous, FL (2021 Audi A4 2.0T 2.0-L 4 Cyl turbo)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
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""power window switches needed to be replaced on two separate occasions, one for the master drivers switch, and the other for the front passenger window switch""
Anonymous, CA (2021 Audi A4 2.0T 2.0-L 4 Cyl turbo)