Mass Airflow Sensor [Should I clean?]

Chris210 · Sep 2nd, 2020, 15:06

I have a 2014 V40 (D4) and I have never cleaned the Mass Airflow Sensor. The car has no warning lights, and the air filter has always been changed in the service schedule.

Should I clean the MAF sensor?
Does cleaning the MAF sensor improve MPG?
Is this a good cleaner: https://www.motoelectrical.co.uk/crc...12-aa-2100052/

swedishnutlathe · Sep 3rd, 2020, 19:34

I always clean mine as a matter of course. Any electrical contact cleaner will do, doesn't need to be MAF cleaner specifically.

When you clean it, remove it, spray it (but don't touch it with the nozzle/dont brush etc) and let it dry for a few seconds.

After it's cleaned, start the engine with no auxiliaries (no AC or lights etc) running and leave it sitting idling for a few minutes. (This isn't strictly required on a diesel but i'd do it anyway!)

Sep 2nd, 2020, 15:06	#1
Chris210 New Member Last Online: Feb 7th, 2021 15:02 Join Date: Dec 2018 Location: Northenden	Mass Airflow Sensor [Should I clean?] I have a 2014 V40 (D4) and I have never cleaned the Mass Airflow Sensor. The car has no warning lights, and the air filter has always been changed in the service schedule. Should I clean the MAF sensor? Does cleaning the MAF sensor improve MPG? Is this a good cleaner: https://www.motoelectrical.co.uk/crc...12-aa-2100052/

Sep 3rd, 2020, 19:34	#2
swedishnutlathe New Member Last Online: Feb 28th, 2021 11:51 Join Date: Aug 2020 Location: A big one	I always clean mine as a matter of course. Any electrical contact cleaner will do, doesn't need to be MAF cleaner specifically. When you clean it, remove it, spray it (but don't touch it with the nozzle/dont brush etc) and let it dry for a few seconds. After it's cleaned, start the engine with no auxiliaries (no AC or lights etc) running and leave it sitting idling for a few minutes. (This isn't strictly required on a diesel but i'd do it anyway!)

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