LIQUI MOLY Air Flow Sensor Cleaner | 200 ml | Service spray | SKU: 4066

Bought this to clean my car exhaust o2 sensors due to high emissions, it cleaned them with ease and very effective. Excellent product does what it says on the tin I give product and seller 5⭐️ Stars also recommend to everyone.

Excellent for cleaning air flow sensors. It worked for me. After cleaning the MAP and MAF sensors the car engine seems to be running better.

Did nothing

works as it should, good value for money

Excellent product, works just as described. I was having problems with my car's engine (Volvo 1.6 turbodiesel i.e. the notorious 1.6 PSA diesel) routinely going into limp-home mode or cutting out completely when hitting 3,000 RPM, and due to the car's mileage (66k) my thoughts instantly turned to potential DPF issues. After visting a local garage for a diagnostic check, they couldn't identify the problem but suggested either clogged injectors or the DPF might be the cause, both of which could prove costly to fix. They recommeded using some DPF cleaning additives first, but after trying this it didn't seem to make much difference (other than my MPG dropping slightly)I wasn't wholly convinced, and after purchasing an OBD II diagnotic reader (also from Amazon, which worked perfectly - look for the reader sold by "RisingTech" if you are interested), the codes it brought up directed me towards Air & Fuel Sensor issues. I then visted some online Volvo forums & discovered a common issue which caused similar symptoms was the Mass Air Flow sensor getting contiminated. In most cases the sensor just needed to be cleaned rather than replaced, and several forum users recommended Liqui Moly's air flow sensor cleaner.Finding the product on Amazon UK for £10.33 (which, at the time of writing, is significantly cheaper than elsewhere), I was further reassured by the number of positive reviews, so I figured why not try it? After purchasing the cleaner & cleaning the sensor (a bit fiddly to remove but with some patience it was straightforward enough), my car is running superbly, pulling under acccelaration with no hesitancy at all (unlike before) and the MPG is back up to what it was previously. Although the product is small (200ml) a little goes a long way and you don't need to use a great deal. Just make sure that after cleaning the sensor, you let it dry off for approx. 30 mins before putting it back in.So if you are having similar issues, I would fully recommend trying this first before going down a potentially far more expensive route.

Got load of muck out of sensor runs a little better

Works as it should, my maf sensor was full of dirt used this stuff come up like new let it dry installed back on car and working as it should

It worked for me took a few cleans about half a can maybe a bit more but it worked in the finish