2003 Audi S8 Switches, Sensors & Relays

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Keep Your 2003 Audi S8 in Top Shape with Quality Switches, Sensors & Relays

Whether you’re repairing or upgrading your Switches, Sensors & Relay, using high-quality parts is key to keeping your 2003 Audi S8 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including X-Contact Relays and Power Accessory Relays. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2003 Audi S8 Switches, Sensors & Relay at Advance Auto Parts is around $45.99, with a range that starts at $26.99 and goes up to $64.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Rein Relay, ELR0054 and Carquest Multi-Purpose Relay, RAA2359 start at just $26.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Switches, Sensors & Relay, don’t forget to check out other key components like Cruise Control Parts and Electrical Connectors. At Advance Auto Parts, we’re here to help you keep your 2003 Audi S8 in peak condition, inside and out.

Essential 2003 Audi S8 Switches, Sensors & Relays

Rein – Rein Relay, ELR0054 (Part No.ELR0054)

Rein Relay, ELR0054

from

$26.99
Electrical parts control all aspects of vehicles on the road today. Replacing these components when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive electrical parts are application specific and match the design and function of the OE parts.
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Carquest Premium – Carquest Multi-Purpose Relay, RAA1246 (Part No.RAA1246)

Carquest Multi-Purpose Relay, RAA1246

from

$22.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
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Carquest Premium – Carquest Multi-Purpose Relay, RAA2359 (Part No.RAA2359)

Carquest Multi-Purpose Relay, RAA2359

from

$64.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
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Most Popular X-Contact Relay for 2003 Audi S8s

Enhance your 2003 Audi S8 with this popular X-Contact Relay we have in stock, for $26.99.

Rein – Rein Relay, ELR0054 (Part No.ELR0054)

Rein Relay, ELR0054

from

$26.99
Electrical parts control all aspects of vehicles on the road today. Replacing these components when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive electrical parts are application specific and match the design and function of the OE parts.
See More

Best-Selling 2003 Audi S8 Power Accessory Relay

Upgrade your S8 with our best-selling Power Accessory Relay.

Carquest Premium – Carquest Multi-Purpose Relay, RAA2359 (Part No.RAA2359)

Carquest Multi-Purpose Relay, RAA2359

from

$64.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
See More

FAQs for 2003 Audi S8 Switches, Sensors & Relays

What are the best-selling Switches, Sensors & Relays for 2003 Audi S8s?

Out of 2 Switches, Sensors & Relays that fit 2003 Audi S8s, the following parts are the top sellers:

What’s the price range for 2003 Audi S8 Switches, Sensors & Relays?

The prices of Switches, Sensors & Relays for the 2003 Audi S8 range from $26.99 up to $64.99 for the most premium parts.

What is the average price of a Switches, Sensors & Relay for a 2003 Audi S8?

The average price for Switches, Sensors & Relays for the 2003 Audi S8 is $45.99. Keep in mind the variety of part types within our Switches, Sensors & Relay category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Switches, Sensors & Relays for other Audi S8 model years?

Yes, we carry Switches, Sensors & Relays for 14 model years of Audi S8s between 2001 and 2025. The following model years are the most popular for Switches, Sensors & Relay purchases: 2018, 2017, 2016, 2015, 2014, 2013, 2009, 2008, and 2007.

What are the cheapest Switches, Sensors & Relays for my 2003 Audi S8?

The cheapest 2003 Audi S8 Switches, Sensors & Relays we carry are:

Does Advance Auto Parts sell Switches, Sensors & Relays for any other 2003 Audi models?

What types of Switches, Sensors & Relays do you sell for my 2003 Audi S8?

As of 8/2/26, these are some of the most in-demand types of Switches, Sensors & Relays for a 2003 Audi S8:

Can I get help with 2003 Audi S8 Switches, Sensors & Relay orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Audi Switches, Sensors & Relays and more.

What is your return policy for Audi S8 Switches, Sensors & Relays?

Advance Auto Parts keeps returns simple. For new Audi S8 Switches, Sensors & Relays and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.