[Working principle]The outside air into the throttle will through the sensor, into the engine will take a very part of the heat, the greater the of outside air, take more heat in order to maintain the necessary temperature of the air sensor, it needs additional current to heat the sensor, it will regulate the size of the air through the current. [Replace in Time]When your car shakily, acceleration is weak, fuel consumption increases, black smoke from the exhaust pipe, etc indicating that your air sensor needs to be replaced.Replacing the sensor will fuel efficiency, assist the catalytic converter in better eliminating harmful gases from the vehicle's exhaust system, reduce emissions, and prevent premature catalytic converter damage. [NOTE]Please clean out the air box and replace the air filter installating this Air Sensor Meter, or the Code and Check Engine Light may keep showing even if you replace a new Air Meter Sensor measures the volume and density of air entering the engine, providing highly readings to the ECU over a wide range of temperatures. Condition: New Item Type: Air Sensor Manufacturer Part Number: 06F906461A Other Part Number: AFH60M-27 Interchange Part Number: 06F 906 461A, AFH60M27 Fitment Type: Direct Replacement Number of Pin: 5Pins Fit for: For A3 (8PA/8P1) 2.0 TFSi, S3 A4 (8EC/D, B7) 2.0 TFSi A6 (4F2/4F5) 2.0 TFSi (8J3/8J9) 2.0 TFSi For (5P1/5P5) 2.0 TFSi Exeo (3R2/3R5) 2.0 TFSi (1P1) 2.0 TFSi, 2.0 R Toledo III (5P2) 2.0 TFSi For II (1Z3/1Z5) 2.0 For (1F7) 2.0 TFSi Golf V (1K1/1K5) 2.0, 2.0 Golf VI (5K1/517) 2.0 , 2.0 R III (1K2) 2.0 TFSi (3C2/3C5) 2.0 FSi (137,138) 2.0 R color:Black Material:plastic Package Contents: 1 x Sensor Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.