Buy 2009 Audi A5 Engine Coolant Temperature Sensor. Don’t, Make, Switch - OEM Audi Part # 03F919501B (03F-919-501-B, 03F919501A)

Engine Coolant Temperature Sensor. Sender. Temperature Sending Unit.
Location-Cylinder Head. Location-Engine. Temperature Sensor for Engine Coolant.

Engine Coolant Temperature Sensor

Fits A3 Sportback e-tron, A8

Atlas Cross Sport; 2.0L. Atlas Cross Sport; 3.6L. Atlas; 2.0L. Atlas; 3.6L. Golf; 1.4L. Jetta; 1.4L. Jetta; 1.5L. Jetta; w/Hybrid. Taos. Taos; 1.5L; Water Pump.
Engine Coolant Temperature Sensor - Repair or Replace
If your engine coolant temperature sensor has failed, you may notice one of several symptoms: your temperature gauge doesn’t move, your engine overheats without warning, your radiator fans don’t switch on, or they don’t switch off. If your 2009 Audi A5 has any of these symptoms, it's a good idea to let a trained Audi technician perform an inspection.