OEM parts categories for 2018 Audi A8 Quattro: A/C & Heating (A/C & Heater Control Units, A/C Condenser, Compressor & Lines, A/C Evaporator & Heater Components, Air Conditioner, Automatic Temperature Controls, Auxiliary Heater & A/C, Blower Motor & Fan, Heater Core & Control Valve, HVAC Case, Rear A/C Lines, Switches & Sensors) | Air & Fuel Delivery (Air Intake, Fuel Injection, Fuel Supply, Fuel System Components, Intake Manifold, Intercooler, Sonar System, Supercharger, Throttle Body, Turbocharger) | Belts & Cooling (Belts & Pulleys, Cooling System, Radiator, Water Pump, Cooling Fan, Hoses, Lines & Pipes, Intercooler, Radiator & Components, Trans Oil Cooler, Water Pump) | Body & Hardware (Back Glass, Reveal Moldings, Center Pillar & Rocker, Cluster & Switches, Instrument Panel, Cowl, Dash Panel Components, Door & Components, Ducts, Fender & Components, Front Bumper, Front Console, Rear Console, Front Door, Front Door - Glass & Hardware, Front Door - Lock & Hardware, Front Seat Components, Glove Box, Grille & Components, Hinge Pillar, Hood & Components, Information Labels, Inner Structure - Quarter Panel, Jack & Components, Outside Mirrors, Pillars, Rocker & Floor - Floor & Rails, Pillars, Rocker & Floor - Splash Shields, Quarter Panel - Glass & Hardware, Quarter Panel & Components, Radiator Support, Radiator Support - Splash Shields, Rear Body, Rear Body - Floor & Rails, Rear Bumper, Rear Door, Rear Door - Glass & Hardware, Rear Door - Lock & Hardware, Rear Seat Components, Roof & Components, Seat Belt, Sound System, Structural Components & Rails, Sunroof, Tracks & Components, Trunk, Trunk Lid, Uniside, Windshield Glass, Reveal Moldings, Wiper & Washer Components) | Brakes (Anti-Lock Brakes, Brake Components, Front Brakes, Hydraulic System, Parking Brake, Rear Brakes, Stability Control) | 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, Communication System Components, Cruise Control System, Electrical Components, Entertainment System Components, Front Door, Front Seat Belts, Fuel Door, Fuse & Relay, Heated Seats, Horn, Ignition Lock, Ignition System, Instruments & Gauges, Lane Departure Warning, Lumbar Control Seats, Mirrors, Navigation System, Parking Aid, Power Seats, Powertrain Control, Rear Door, Rear Seat Belts, Ride Control, Senders, Starter, Sunroof, Switches, Tire Pressure Monitoring, Trunk, Washer Components, Wiper & Washer Components, Wiring Harness) | Emission Control & Exhaust (A.I.R. System, 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, Supercharger & Components, Transaxle Parts, Turbocharger) | Headlights & Lighting (Headlamps, Headlamp Washers/Wipers, High Mount Lamps, License Lamps, Tail Lamps) | Interior & Exterior Trim (Exterior Trim - Fender, Exterior Trim - Front Door, Exterior Trim - Pillars, Rocker & Floor, Exterior Trim - Quarter Panel, Exterior Trim - Rear Door, Exterior Trim - Roof, Exterior Trim - Trunk Lid, Interior Trim - Front Door, Interior Trim - Pillars, Rocker & Floor, Interior Trim - Quarter Panels, Interior Trim - Rear Body, Interior Trim - Rear Door, Interior Trim - Roof, Interior Trim - Trunk Lid) | Maintenance & Lubrication (Automatic Transmission, Belts & Pulleys) | 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 Suspension Components, Ride Control, Stabilizer Bar, Shocks & Components - Front, Shocks & Components - Rear, Stabilizer Bar & Components - Front, Wheels, Covers & Trim) | Transmission (Automatic Transmission, Gear Shift Control - AT)