Audi A4 Engine Switches, Sensors and Relays

Your One-Stop Shop For Trusted Audi A4 Engine Switches, Sensors and Relays

If you’re in search of Audi A4 Engine Switches, Sensors and Relays aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 23 Engine Switches, Sensors and Relays from top brands with prices ranging from $29.99 to $337.99.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Switches, Sensors and Relays for your Audi A4.

And don’t forget to read customer reviews across all Engine Switches, Sensors and Relays categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Engine Switches, Sensors and Relays have to cost top dollar, and we prove it. Browse our top Audi A4 Engine Switches, Sensors and Relays below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Audi A4 Engine Switches, Sensors and Relays

Bosch – Crankshaft Position Sensor (Part No.0261210178)

Crankshaft Position Sensor

from

$68.99
Bosch OE quality crankshaft speed sensors with robust design for improved temperature shock stability, with enlarged temperature range and reduced drift during lifetime.

Product Features:
  • Precise digital measurement of rotational speeds
  • OE-technology quality components developed and manufactured to very fine tolerances
  • High resistance against external interference
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Bosch – Crankshaft Position Sensor (Part No.0261210147)

Crankshaft Position Sensor

from

$62.99
Bosch OE quality crankshaft speed sensors with robust design for improved temperature shock stability, with enlarged temperature range and reduced drift during lifetime.

Product Features:
  • Precise digital measurement of rotational speeds
  • OE-technology quality components developed and manufactured to very fine tolerances
  • High resistance against external interference
See More

Carquest Premium – Engine Oil Level Sensor (Part No.FFC1236)

Engine Oil Level Sensor

from

$337.99
The engine lubrication system is critical to engine operation and long life. On some vehicle applications, the engine control module monitors the engine oil level to ensure lubrication is not lost.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
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Carquest Premium – Engine Oil Level Sensor (Part No.LAC1024)

Engine Oil Level Sensor

from

$194.99
The engine lubrication system is critical to engine operation and long life. On some vehicle applications, the engine control module monitors the engine oil level to ensure lubrication is not lost.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

URO Parts – Oil Level Sensor (Part No.1J0907660B)

Oil Level Sensor

from

$39.99
URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:
  • Guaranteed Fitment
  • High Quality Materials
  • Guaranteed fitment
  • Direct-fit OE replacement design restores factory oil level sensor function
  • Easy plug-and-play connection
  • Manufactured using high-quality materials to withstand intense lubrication system heat
  • Alloy conductors minimize electrical resistance for accurate operation
  • Designed and tested for reliability and long life
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Carquest Premium – Engine Oil Level Sensor (Part No.SBC3724)

Engine Oil Level Sensor

from

$76.99
The engine lubrication system is critical to engine operation and long life. On some vehicle applications, the engine control module monitors the engine oil level to ensure lubrication is not lost.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

Delphi – Engine Crankshaft Position Sensor (Part No.SS10811)

Engine Crankshaft Position Sensor

from

$141.99
Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:
  • The sensors provide accurate readings from the gap between sensor contact and element due to its design
  • Manufactured to meet or exceed OE requirements
  • Enhanced sensing functionality helps reduce emissions, improve reliability and drivability
  • Not impacted by temperature changes and provide robust, long-lasting sensor protection
  • Designed digital output for maximum signal to noise ratio
See More

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSA1991)

Engine Crankshaft Position Sensor

from

$91.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
  • O-rings and seals are included if required.
  • Weather-tight connectors prevent leaks and corrosion for better reliability.
  • Extensive design validation testing and 100% end-of-line tested.
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Dorman – Crankshaft Position Sensor (Part No.962-523)

Crankshaft Position Sensor

from

$44.99
This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Magnetic Crankshaft Position Sensor (Part No.962-420)

Magnetic Crankshaft Position Sensor

from

$29.99
This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSA3667)

Engine Crankshaft Position Sensor

from

$91.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
  • O-rings and seals are included if required.
  • Weather-tight connectors prevent leaks and corrosion for better reliability.
  • Extensive design validation testing and 100% end-of-line tested.
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSA1837)

Engine Crankshaft Position Sensor

from

$76.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
  • O-rings and seals are included if required.
  • Weather-tight connectors prevent leaks and corrosion for better reliability.
  • Extensive design validation testing and 100% end-of-line tested.
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Delphi – Engine Crankshaft Position Sensor (Part No.SS10812)

Engine Crankshaft Position Sensor

from

$132.99
Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:
  • The sensors provide accurate readings from the gap between sensor contact and element due to its design
  • Manufactured to meet or exceed OE requirements
  • Enhanced sensing functionality helps reduce emissions, improve reliability and drivability
  • Not impacted by temperature changes and provide robust, long-lasting sensor protection
  • Designed digital output for maximum signal to noise ratio
See More

Bosch – Crankshaft Position Sensor (Part No.0261210199)

Crankshaft Position Sensor

from

$125.99
Bosch OE quality crankshaft speed sensors with robust design for improved temperature shock stability, with enlarged temperature range and reduced drift during lifetime

Product Features:
  • Precise digital measurement of rotational speeds
  • OE-technology quality components developed and manufactured to very fine tolerances
  • High resistance against external interference
See More

Carquest Premium – Crankshaft Position Sensor (Part No.CSC1268)

Crankshaft Position Sensor

from

$76.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium crankshaft position sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application
  • O-rings and seals are included if required
  • Weather-tight connectors prevent leaks and corrosion for better reliability
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Bosch – Crankshaft Position Sensor (Part No.0261210177)

Crankshaft Position Sensor

from

$75.99
Bosch OE quality crankshaft speed sensors with robust design for improved temperature shock stability, with enlarged temperature range and reduced drift during lifetime.

Product Features:
  • Precise digital measurement of rotational speeds
  • OE-technology quality components developed and manufactured to very fine tolerances
  • High resistance against external interference
See More

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSA2099)

Engine Crankshaft Position Sensor

from

$70.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
  • O-rings and seals are included if required.
  • Weather-tight connectors prevent leaks and corrosion for better reliability.
  • Extensive design validation testing and 100% end-of-line tested.
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Carquest Premium – Crankshaft Sensor (Part No.CSC1191)

Crankshaft Sensor

from

$99.99
A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments, including the

Product Features:
  • Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
  • Manufactured in an anti-static environment to ensure reliability and stability.
  • Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
  • Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.
See More

Dorman – Magnetic Camshaft Position Sensor (Part No.907-869)

Magnetic Camshaft Position Sensor

from

$64.99
This engine camshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this engine camshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSA1343)

Engine Crankshaft Position Sensor

from

$86.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
  • O-rings and seals are included if required.
  • Weather-tight connectors prevent leaks and corrosion for better reliability.
  • Extensive design validation testing and 100% end-of-line tested.
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Dorman – Crankshaft Position Sensor (Part No.907-957)

Crankshaft Position Sensor

from

$62.99
This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSC2979)

Engine Crankshaft Position Sensor

from

$105.99
Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Engineered with technology that provides increased accuracy with a stronger, more consistent signal
  • Sensors are based on proven hall effect and variable reluctance technology
  • Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
  • O-rings and seals are included if required.
  • Weather-tight connectors prevent leaks and corrosion for better reliability.
  • Extensive design validation testing and 100% end-of-line tested.
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Rein – Crankshaft Sensor (Part No.ELC0278)

Crankshaft Sensor

from

$34.99
Rein Automotive OE Crankshaft Position Sensors are manufactured to factory specifications ensuring proper fit, form and function. The Crankshaft Sensor is used to measure the position or rotational speed of the crankshaft. The vehicle uses the information sent from the sensor to the ECU to then determine the optimal fuel injection and regulate the ignition. Our quality Crankshaft Sensors aim to provide the professional repair technician and vehicle owner the peace of mind and trust that is expected from an OE quality component.

Product Features:
  • Tested to ensure maximum performance.
  • Manufactured to strict engineering standards/specifications in materials and tolerances.
  • Long life and durability.
  • Direct OE replacement.
See More

Engine Switches, Sensors and Relays Brands You Can Trust For Your Audi A4

6 trusted brands of Engine Switches, Sensors and Relays line our shelves, ready to help keep your Audi A4 running smooth. Below are some of the most popular brands and their top Engine Switches, Sensors and Relays offerings:

Popular Bosch Engine Switches, Sensors and Relays

Bosch products for the Audi A4 span several categories. Some of the highest-rated Bosch Engine Switches, Sensors and Relays that will fit your Audi A4 are:
Crankshaft Position Sensor
from $62.99
(1)
Crankshaft Position Sensor
Engine Crank Angle Sensors
Crankshaft Position Sensor
from $125.99
(4)
Crankshaft Position Sensor
Crankshaft Position Sensors

Most Purchased Audi A4 Engine Switches, Sensors and Relays from Bosch

When you buy the most frequently purchased Bosch brand Engine Switches, Sensors and Relays, you can be confident it will be the right part for your Audi A4. Here are the Bosch Engine Switches, Sensors and Relays Advanced Auto customers buy the most:
Crankshaft Position Sensor
from $125.99
(4)
Crankshaft Position Sensor
Crankshaft Position Sensors
Crankshaft Position Sensor
from $62.99
(1)
Crankshaft Position Sensor
Engine Crank Angle Sensors
Engine Crankshaft Position Sensor
from $86.99
This product is not rated
Engine Crankshaft Position Sensor
Crankshaft Position Sensors

FAQs for Audi A4 Engine Switches, Sensors and Relays

What are the most purchased Engine Switches, Sensors and Relays for the Audi A4?

Out of 23 Engine Switches, Sensors and Relays for the Audi A4, the most popular in our inventory are:
Oil Level Sensor
from $39.99
This product is not rated
Oil Level Sensor
Oil Level Sensors
Crankshaft Position Sensor
from $76.99
This product is not rated
Crankshaft Position Sensor
Crankshaft Position Sensors
Engine Crankshaft Position Sensor
from $86.99
This product is not rated
Engine Crankshaft Position Sensor
Crankshaft Position Sensors