2003 Audi A4 Electrical Parts
- Light Switches
- Light Relays + Sensors
- Fuses
- Air Bag Parts
- Wiring & Cables
- Replacement Gauges
- Power + Heated Seats
- Cruise Control
- Horns
- Door Lock Actuators + Switches
- Sunroof + Convertible Top Motors
- Window Motors + Switches
- Alternators
- Starters
- Batteries
- Voltage Regulators
- A/C Relays, Sensors
- Fuel Sensors & Switches
- Cooling System Switches, Sensors & Relays
- Oxygen Sensors
- Engine Sensors, Relays, Switches & Connectors
- Solenoids, Sensors, Switches, Control Units
- Relays, Cables & Connectors
- Brake System Sensors
- Mass Air Flow Sensors
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Walker Products®Mass Air Flow SensorAudi A4 / A4 Quattro 2003, Mass Air Flow Sensor by Walker Products®. Make sure your engine breathes properly with our selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$75.21 - $102.15 - TRQ®O2 Oxygen SensorAudi A4 / A4 Quattro 2003, O2 Oxygen Sensor by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$34.15$35.95Save 5%
- TRQ®Camshaft Position SensorAudi A4 / A4 Quattro 2003, Camshaft Position Sensor by TRQ®. Replace your vehicle’s faulty cam sensor with the TRQ engine camshaft position sensor to make your engine perform as it should and bring your vehicle back to its former...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$22.75 - $35.47$23.95 - $36.95Save up to 5%
- TRQ®Camshaft Position Sensor KitAudi A4 / A4 Quattro 1.8L 2003, Camshaft Position Sensor Kit by TRQ®. Replace your vehicle’s faulty cam sensor with the TRQ engine camshaft position sensor to make your engine perform as it should and bring your vehicle back to its...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.15$35.95Save $1.80 (5%)
- TRQ®Crankshaft Position SensorAudi A4 / A4 Quattro 3.0L 2003, Crankshaft Position Sensor by TRQ®. Replace your vehicle’s faulty cam sensor with the TRQ engine camshaft position sensor to make your engine perform as it should and bring your vehicle back to its...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$24.91 - $46.50$25.95 - $48.95Save up to 5%
- TRQ®Engine Oil Level SensorAudi A4 / A4 Quattro 2003, Engine Oil Level Sensor by TRQ®. Replace your vehicle’s faulty cam sensor with the TRQ engine camshaft position sensor to make your engine perform as it should and bring your vehicle back to its former...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.15$35.95Save $1.80 (5%)
- Four Seasons®HVAC System SwitchAudi A4 / A4 Quattro 2003, HVAC System Switch by Four Seasons®. With Oval Connector Shape. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and...Contains gaskets, o-rings, or seals to properly replace the productPrecision engineered$66.57
- UAC®HVAC Pressure TransducerAudi A4 / A4 Quattro 2003, HVAC Pressure Transducer by UAC®. UAC’s line of electrical components includes the Switches and Relays that are necessary for the proper function of an A/C System. They are produced at top tier facilities...Helps maintain a desired temperature inside your carMade of durable materials$38.77
- ACDelco®Gold™ Remanufactured AlternatorAudi A4 / A4 Quattro 1.8L 2003, Gold™ Remanufactured Alternator by ACDelco®. Current: 150 Amp. With 6 Groove Serpentine Pulley. Pulley Size: 56 mm. Internal Fan. Plug Position: 12:00 O'Clock. Voltage Regulator: Internal. Rotation:...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$176.32
- TYC®StarterAudi A4 / A4 Quattro with Bosch Starter 2003, Starter by TYC®. Type: Permanent Magnet Gear Reduction. Rotation: Clockwise. As soon as your starter motor fails, you can feel it right away. Well, if your starter motor is damaged, you no...100% New unit inside and out (No recycled components) ensure longer term useOE quality at an affordable price$84.57 - $111.57
- Quality-Built®AlternatorAudi A4 / A4 Quattro 2003, Alternator by Quality-Built®. Get professional installer quality at a DIY price with a Quality-Built alternator. These alternators are manufactured under strict QS-9000 quality guidelines, the highest quality...Designed specifically for the high demands of professional installersSelect components and advanced manufacturing techniques provide unparalleled performance and reliability$107.84 - $345.16
- Walker Products®Oxygen SensorAudi A4 2003, Oxygen Sensor by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...High quality at an affordable priceExpertly made from premium materials$68.87 - $117.86
- iD Select®StarterAudi A4 / A4 Quattro 2003, Starter by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function as your factory...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$91.55 - $103.42
- gpd®Engine Coolant Temperature SensorAudi A4 / A4 Quattro 2003, Engine Coolant Temperature Sensor by gpd®. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they are...Designed to meet or exceed OE fit, form, and functionDurability tested on every new design$7.57 - $12.21
- Bosch®Narrow-band Oxygen SensorAudi A4 2003, Narrow-band Oxygen Sensor by Bosch®. Position: Downstream. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen...OE-EquivalentOE Style connectors and wire lengths$50.66
- Audi OECooling - Radiator & Components (1.8L)Audi A4 1.8L 2003, Cooling - Radiator & Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$2.54 - $637.17
- Audi OECooling - Radiator & Components (1.8L)Audi A4 1.8L 2003, Cooling - Radiator & Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$2.54 - $637.17
- Audi OECooling - Radiator & Components (3.0L)Audi A4 3.0L 2003, Cooling - Radiator & Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$2.54 - $914.71
- Audi OECooling - Radiator & Components (3.0L)Audi A4 3.0L 2003, Cooling - Radiator & Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$2.54 - $914.71
- Audi OEEngine / Transaxle - Engine PartsAudi A4 2003, Engine / Transaxle - Engine Parts by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want to...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$6.41 - $429.73
- Audi OEEngine / Transaxle - Engine Parts (1.8L)Audi A4 1.8L 2003, Engine / Transaxle - Engine Parts by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$6.41 - $464.13
- Audi OEEngine / Transaxle - Engine Parts (1.8L)Audi A4 1.8L 2003, Engine / Transaxle - Engine Parts by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$6.41 - $429.73
- Audi OEEngine / Transaxle - Engine Parts (3.0L)Audi A4 3.0L 2003, Engine / Transaxle - Engine Parts by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$6.41 - $395.77
- Vemo®Ambient Air Temperature SensorAudi A4 1.8L / 3.0L 2003, Ambient Air Temperature Sensor by Vemo®. Aftermarket. Plug (Connector): 2 Pins. Are you shivering behind the wheel in the winter, or sweating in traffic in the summer? Do you detect the sweet smell of...Premium parts you can rely onDesigned to keep your A/C system in top shape$11.39
- Bosch®Camshaft Position SensorAudi A4 / A4 Quattro 1.8L AMB Engine 2003, Camshaft Position Sensor by Bosch®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$58.54
- Vemo®Oil Level SensorAudi A4 2003, Oil Level Sensor by Vemo®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$91.49
- URO Parts®Engine Coolant Temperature SenderAudi A4 2003, Engine Coolant Temperature Sender by URO Parts®. Terminal Type: Pin. This superior part by URO is a great alternative solution to the costly factory equipment that will help you restore smooth and efficient operation of...Designed to replace your worn out factory cooling partOptimizes engine cooling performance$4.51 - $6.50
- TRQ®StarterAudi A4 / A4 Quattro 3.0L 2003, Starter by TRQ®. With 9-Tooth Pinion Gear. For optimum cranking amps and reliable power needed to start your engine, replace your malfunctioning starter with this top-quality starter designed by TRQ....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$131.05$137.95Save $6.90 (5%)
- TRQ®AlternatorAudi A4 / A4 Quattro 1.8L with 150 Amp Bosch Alternator / 150 Amp Valeo Alternator 2003, Alternator by TRQ®. The reliable TRQ alternator is right what the doctor ordered to optimally power up your vehicle’s engine battery and other...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$185.20$194.95Save $9.75 (5%)
- Denso®Oxygen SensorAudi A4 / A4 Quattro 1.8L / 3.0L 2003, Oxygen Sensor by Denso®. Position: Downstream. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$86.96
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2003 Audi A4 Electrical Reviews
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United Motor Products® - Engine Coolant Temperature SensorPosted by Michael (Las Vegas, NV) / January 07, 20212013 Volkswagen Golf GTI
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