OEM parts categories for 2018 Audi Q3 Quattro: A/C & Heating (A/C & Heater Control Units, A/C Condenser, Compressor & Lines, A/C Evaporator & Heater Components, Air Conditioner, Blower Motor & Fan, Heater Core & Control Valve, HVAC Case, Switches & Sensors) | Air & Fuel Delivery (Air Intake, Cruise Control System, Fuel Injection, Fuel Supply, Fuel System Components, Intake Manifold, Intercooler, Throttle Body, Turbocharger) | Belts & Cooling (Belts & Pulleys, Cooling System, Radiator, Water Pump, Cooling Fan, Hoses, Lines & Pipes, Intercooler, Radiator & Components, Water Pump) | Body & Hardware (Aperture Panel, Uniside, Center Console, Center Pillar, Cluster & Switches, Instrument Panel, Cowl, Dash Panel Components, Ducts, Electrical Components - Console, Fender & Components, Front Bumper, Front Door, Front Door - Glass & Hardware, Front Door - Lock & Hardware, Front Seat Components, Gate & Hardware, Glove Box, Grille & Components, Hinge Pillar, Hood & Components, Information Labels, Inner Structure - Quarter Panel, Jack & Components, Lift Gate, Lift Gate - Glass & Hardware, Lift Gate - Wiper & Washer Components, Luggage Carrier, Outside Mirrors, Pillars, Rocker & Floor - Floor & Rails, Quarter Panel - Glass & Hardware, Quarter Panel & Components, Radiator Support, Rear Body, Rear Body - Floor & Rails, Rear Bumper, Rear Door, Rear Door - Glass & Hardware, Rear Door - Lock & Hardware, Rear Seat Components, Rear Spoiler, Rocker Panel, Roof & Components, Seat Belt, Sound System, Splash Shields, Structural Components & Rails, Sunroof, Tracks & Components, Windshield - Wiper & Washer Components, Windshield Glass, Reveal Moldings) | Brakes (Anti-Lock Brakes, Brake Components, Front Brakes, Hydraulic System, Parking Brake, Rear Brakes) | Charging & Starting (Alternator, Battery, Starter) | Driveline & Axles (Front Axle Shafts & Joints, Drive Axles, Rear Axle, Axle Shafts & Joints, Differential, Drive Axles, Propeller Shaft) | Electrical (ABS Components, Air Bag Components, Alarm System, Antenna & Radio, Anti-Theft Components, Electrical Components, Front Door, Front Seat Belts, Fuel Door, Fuse & Relay, Heated Seats, Horn, Ignition Lock, Ignition System, Instruments & Gauges, Keyless Entry Components, Lane Departure Warning, Lumbar Control Seats, Mirrors, Navigation System, Parking Aid, Power Seats, Powertrain Control, Rear Door, Rear Seat Belts, Seat Belt, Senders, Starter, Sunroof, Switches, Wiper & Washer Components, Wiring Harness) | Emission Control & Exhaust (Emission Components, Exhaust Components, Exhaust Manifold) | Engine (Engine & Trans Mounting, Engine Appearance Cover, Engine Parts, Mounts, Cylinder Head & Valves, Camshaft & Timing, Variable Valve Timing, Oil Cooler, Oil Pan, Oil Pump, Balance Shafts, Crankshaft & Bearings, Pistons, Rings & Bearings, Transaxle Parts, Turbocharger) | Headlights & Lighting (Bulbs, Headlamps, Headlamp Washers/Wipers, High Mount Lamps, License Lamps, Side Marker Lamps, Tail Lamps) | Interior & Exterior Trim (Exterior Trim - Fender, Exterior Trim - Front Door, Exterior Trim - Lift Gate, Exterior Trim - Quarter Panel, Exterior Trim - Rear Door, Exterior Trim - Roof, Interior Trim - Front Door, Interior Trim - Lift Gate, Interior Trim - Pillars, Rocker & Floor, Interior Trim - Quarter Panels, Interior Trim - Rear Body, Interior Trim - Rear Door, Interior Trim - Roof) | Maintenance & Lubrication (Automatic Transmission, Belts & Pulleys, Filters) | Steering (Shroud, Switches & Levers, Steering Column & Wheel, Steering Gear & Linkage) | Suspension (Axle & Differential - Rear, Drive Axles - Front, Drive Axles - Rear, Drive Shaft - Rear, Front Suspension Components, Lower Control Arm, Ride Control, Stabilizer Bar, Rear Axle, Lower Control Arm, Upper Control Arm, Ride Control, Stabilizer Bar, Suspension Components, Rear Suspension, Shocks & Components - Rear, Stabilizer Bar & Components - Front, Stabilizer Bar & Components - Rear, Struts & Components - Front, Suspension Mounting - Front, Suspension Mounting - Rear, Wheels, Covers & Trim) | Transmission (Automatic Transmission, Gear Shift Control - AT, Transfer Case)