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The 2018 A4 is less reliable than other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2018 Audi A4 owners. The owner comments describe problems respondents experienced with this vehicle.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
"required a new one"
Anonymous A., FL (2018 Audi A4 Ultra 2.0-L 4 Cyl turbo)"A/C was not working. Dealer could not find a problem. Told them to check the freon charge. They recharged the system, which cost about $500. A/C then working fine, but at a high cost."
Anonymous, NJ (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)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.
"One of the daytime running lights stopped functioning. To fix, it requires a replacement of the entire light assembly including headlights, high beams, and turn signal light."
Anonymous, MN (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)""The keyless entry has never worked properly and has never been resolved, but I haven't been aggressive about having it fixed.""
Anonymous, MD (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
"The leak started a couple of years ago but it was very slow so I was in no rush to get it fixed. The problem was resolved by the dealership after two appointments."
Anonymous, MI (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
"the motor mounts had to be replaced. Approximate cost $2000"
Anonymous, AZ (2018 Audi A4 Ultra 2.0-L 4 Cyl turbo)Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
"While getting maintenance this year I was told that my water pump was leaking and needed to be replaced. It was replaced."
Anonymous, MI (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
""Coolant pump developed a leak around 30k miles. Apparently a known issue, there was no repair charge once the leak was diagnosed on the 2nd visit""
Anonymous, NC (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
"Phone pairing will simply disappear even after just using the car. You then have to hardwire the phone using the USB to re-pair the device to the car. It happens randomly and is annoying when trying to use navigation on the Android auto app."
Anonymous, MA (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
""Hydrolic engine mounts leaking, replaced""
Anonymous, MA (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)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.
""Motor Mounts failed at 52K Miles, $1600 repair required.""
Anonymous, CO (2018 Audi A4 2.0T 2.0-L 4 Cyl turbo)Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
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.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
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.
"the entire system was changed"
Anonymous A., FL (2018 Audi A4 Ultra 2.0-L 4 Cyl turbo)