Exhaust
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
The 2017 4 Series has about average reliability compared to other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2017 BMW 4 Series owners. The owner comments describe problems respondents experienced with this vehicle.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
"Leak was specifically in the low temperature radiator, the problem occurred suddenly, AC worked one day then didn't, in May and was repaired within 2 weeks."
Anonymous, AL (2017 BMW 4 Series 440i 3.0-L 6 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.
"Bushing along with struts/shock had to be replaced"
Anonymous A., OR (2017 BMW 4 Series 430i 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.
""Repeat offender, back in shop 4th tone""
Anonymous A., OR (2017 BMW 4 Series 430i 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.
"Convertible top would not close completely and the problem was because one of the window sensors stopped working so the top could not work appropriately without the ability to know the position of all the windows. It had to be fixed by the dealer and took a few days."
Anonymous, NC (2017 BMW 4 Series 430i 2.0-L 4 Cyl turbo)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
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.
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
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.
Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
"Trouble with the convertible top operating."
Anonymous, MI (2017 BMW 4 Series 430i Unsure)