Relays vital information to the ECU.
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Audi S4 Engine Sensors
- A/C Cutout
- Air Intake
- Boost Pressure
- Camshaft Position
- Coolant Temperature
- Crankshaft Position
- EGR
- Knock Sensor
- MAP Sensor
- Manifold Flap Position
- Mass Air Flow
- Oil Level
- Oil Pressure
- Oil Temperature
- Oxygen
- Secondary Air Pump
- Speed Sensor
Also known as the RPM or speed sensor.
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Manual transmission models
Located in the coolant pipe that connects to the cylinder head
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Prevents excess pressure from building within the system
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Mounted on the bottom of the oil pan
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For vehicles with production date from 2020
Detects engine ping for timing adjustment
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Up to VIN 8D-X-260000, split is in the 1999 model year
This product was last offered at the strikethrough price on
12-29-2025
Manifold absolute pressure sensor, lets your ECU know how much air pressure is in your intake manifold
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Located on the rear of the supercharger
Keep your engine running efficiently
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Fits left and right position
This product was last offered at the strikethrough price on
05-07-2026
Keep your engine running smoothly
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Fits left rear only
This product was last offered at the strikethrough price on
05-07-2026
Located in the cylinder head
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Also referred to as the impulse sender
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This product was last offered at the strikethrough price on
05-07-2026
Also known as the RPM or speed sensor
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Up to the 2012 model year
This product was last offered at the strikethrough price on
05-07-2026
Monitors coolant temperature for fan control & gauge readings
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This product was last offered at the strikethrough price on
05-07-2026