OEM parts categories for 1999 Audi A8: A/C & Heating (A/C & Heater Control Units, A/C Condenser, Compressor & Lines, A/C Evaporator & Heater Components, Air Conditioner, Automatic Temperature Controls, Blower Motor & Fan, Heater Core & Control Valve, HVAC Case, Switches & Sensors) | Air & Fuel Delivery (Air Inlet Controls, Air Intake, Cruise Control System, Fuel Injection, Fuel Supply, Fuel System Components, Intake Manifold, Throttle Body) | Belts & Cooling (Belts & Pulleys, Cooling System, Radiator, Water Pump, Cooling Fan, Radiator & Components, Trans Oil Cooler Lines, Water Pump) | Body & Hardware (Back Glass, Reveal Moldings, Center Console, Center Pillar, Hinge Pillar, Rocker, Cluster & Switches, Cowl & Components, Door & Components, Ducts, Fender & Components, Exterior Trim, Front Bumper, Front Door, Front Door - Glass & Hardware, Front Door - Lock & Hardware, Front Seat Components, Glove Box, Grille & Components, Hood & Components, Information Labels, Inner Structure - Quarter Panel, Instrument Panel, 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, Roof & Components, Seat Belt, Sound System, Splash Shields, Structural Components & Rails, Sunroof, Trunk, Trunk Lid, Windshield Glass, Reveal Moldings, Wiper & Washer Components) | Brakes (Anti-Lock Brakes, Brake Components, Front Brakes, Hydraulic System, Parking Brake, Rear Brakes) | Charging & Starting (Alternator, Battery, Starter) | Driveline & Axles (Differential - Rear, Front Axle Shafts & Joints, Drive Axles) | Electrical (ABS Components, Air Bag Components, Alarm System, Antenna & Radio, Anti-Theft Components, Cruise Control System, Door & Components, Electrical Components, Flashers, Front Door, Front Seat Belts, Fuel Door, Heated Seats, Horn, Ignition Lock, Ignition System, Instruments & Gauges, Mirrors, Power Seats, Powertrain Control, Rear Door, Rear Seat Belts, Ride Control, Senders, Starter, Sunroof, Switches, Trunk, Washer Components, Window Defroster, Wiper & Washer Components) | Emission Control & Exhaust (EGR System, Emission Components, Exhaust Components, Exhaust Manifold) | Engine (Engine & Trans Mounting, Engine Appearance Cover, Engine Parts, Mounts, Cylinder Head & Valves, Camshaft & Timing, Oil Pan, Oil Pump, Crankshaft & Bearings, Transaxle Parts) | Headlights & Lighting (Bulbs, Fog Lamps, Headlamps, Headlamp Washers/Wipers, High Mount Lamps, License Lamps, Park & Signal Lamps, Side Repeater Lamps, Tail Lamps) | Interior & Exterior Trim (Exterior Trim - Front Door, Exterior Trim - Pillars, Rocker & Floor, Exterior Trim - Quarter Panel, Exterior Trim - Rear Door, Exterior Trim - Trunk Lid, Fender & Components, Exterior Trim, 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, Filters) | Steering (P/S Pump & Hoses, Steering Gear & Linkage, Steering Column & Wheel, Steering Gear & Linkage) | Suspension (Drive Axles - Front, Front Suspension Components, Lower Control Arm, Stabilizer Bar, Rear Axle, Stabilizer Bar, Suspension Components, Rear Suspension, Stabilizer Bar & Components - Front, Stabilizer Bar & Components - Rear, Struts & Components - Front, Wheels) | Transmission (Automatic Transmission, Gear Shift Control - AT)