Maf sensor


Registered User
Hey guys have noticed something today I have an a3 2000 aum the maf has 5 pins in the connector but the connector in the car only has 4 wires? Is this right or is it the wrong maf?


Badger 5 Edition...Its all about the flow...
Staff member
All MAF sensors have 5 pins... the 5th pin is for an air temp sensor which isn't fitted to A3's etc... RS4 uses this (and maybe a couple of others) but not A3/S3 etc..

You can check if you have the right sensor by the number on the sensor itself (of course you need to special security torx bit to remove it)

All wideband cars like your AUM with have a sensor with 049 on the end like the middle one in this pic...