AR2810 Mass Air Flow Sensor Cleaner MAF, MAP, Air Intake Plenum and EGR Cleaner, 500ml, Residue Free Multi Action Formulation for Fast Results & Zero Waste. Professional Nozzle Applicator

Great for cleaning dirt from diesel car sensors etc. 2nd time purchase.

Good stuff, cleans deposits from Maf instantly

Bought this to clean the MAF sensor on my Lexus 220d . Easy job unpop the covers over the air filter box , pull off the conection, undo the two self tapping screws that hold the MAF sensor to the air box . Spray the sensor with the cleaner . I did mine several times . Let it dry. Replace in reverse order and start up . Idle the engine for 3 mins. Take for test drive. Engine is running better and mpg is back up to 43mpg . It's a 300ml can not 200ml as in description . Would give it 5 stars but it's expensive for what it is.

Used this to clean my MAF sensor - I have a Bosch VAG sensor (used in probably tens/hundreds of VAG models circa 2004) and I was suspicious of an issue due to rough idling - everything else was fine with the car. Unplugging the sensor brought the car's idling back to normal so I was suspicious of the MAF sensor, having never cleaned it in the 9 years I've had the car. Before ordering a new Bosch MAF sensor (they're quite costly) I took my existing one out, and then removed the actual sensor carefully (attached with two special keyed torx type screws) - I gave the sensor a direct spray very carefully - notably the metal wire that does the sensing - very delicate area. I then gave the whole MAF enclosure a spray and clean too. If I'm honest not a lot of black dirt came out of my setup but once all reassembled, this rectified my idling issue. I was initially not able to see the wire clearly as it was coated in black slightly, but once sprayed and clean it was visible again - no doubt that was the issue. But trying to spray this sensor directly whilst attached within the MAF pipe enclosure would have been impossible and wasted a lot of this spray no doubt so ensure you've got your sensor disassembled and you're working directly on the sensor wires - but be careful! Saved me the purchase of a new MAF sensor and I'm convinced that this is the issue with most of you with idling issues - existing sensor just needs a clean, not replacement. And always good to start down that avenue.

Very good product easy to use great

No difference

It cleaned the map sensor.

Only 4 stars because although it cleaned sensors perfectly well, its spray straw is low pressure because it doesn't align with nozzle properly. I'd buy it again despite this.