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About this product
Product Identifiers
BrandLIQUI MOLY
MPN4066
Manufacturer Part Number4066
EAN4100420040665, 0689742827863
GTIN4100420040665, 0689742827863
UPC0689742827863
eBay Product ID (ePID)24034026277
Product Key Features
Reference OE/OEM NumberLr027408
TypeSensor Cleaner
Dimensions
Weight259g
Volume200ml
Ratings and reviews
Most relevant reviews
- 29 Aug, 2025
Fixed multiple issues on my E90 for unde...
Fixed multiple issues on my E90 for under a tenner, hesitation, misfires & poor mileage solved by a good couple of cleans of the MAF sensor. Many people go down the road of replacing plugs, coils & looking at fuel injectors when it s best to start with the simplest, cheapest option. Easy to use, knowing you are safely cleaning your electrical components. Performance has roared back to life.Verified purchase: YesCondition: New
- 27 Aug, 2025
Not used it yet, but have read all the g...
Not used it yet, but have read all the great reviews. Liqui Moly is a good brand so not worried. Should do exactly what it says on the tin.Verified purchase: YesCondition: New
- 19 Nov, 2024
read the instructions carefully and you ...
read the instructions carefully and you cant go wrong, this product has made a huge difference to the performance of the car it was used on and has made a big difference to fuel economy. if your car feels sluggish pulling uphill or on the flat then give this product a try. the maff sensor wire might not look dirty when you remove it but you wont see it with the naked eye.Verified purchase: YesCondition: New
- 04 Apr, 2021
A good product in my opinion
Seems to be a high-grade effective product, better than other brands I've used. Allow suffucient drying time after use. *Genuine independent user feedback*Verified purchase: YesCondition: New
- 02 Jun, 2021
Moly air sensor cleaner
Garage said I needed a new maf sensor fitted £257 a guy on YouTube said about this , 3 sprays and left to dry for 30 minutes now running like brand new againVerified purchase: YesCondition: New
- 22 Nov, 2024
works great
Engine light on . diagnostics said airmass sensor so used this . light off car running much better does what it says brilliantVerified purchase: YesCondition: New
- 30 Aug, 2024
Fantastic iterm used it once & fingers c...
Fantastic iterm used it once & fingers crossed has done the job engine light for air mass sensor has stayed off 👌Verified purchase: YesCondition: New
- 21 Apr, 2020
Excellent product!!!
Worked perfectly on my 335i E92 N55 whilst getting a performance intake system installed. Took out the MAF sensor and sprayed it up as recommended, little debris could be seen stuck in the sensor, which was fully cleaned up with Liquid Moly. Will definitely get more of this when mine runs out.Verified purchase: YesCondition: New
- 02 Jun, 2021
The best but pricey
Buying a large can for the sake of a couple of squirts seems to be an inevitability annoying experience. If you have a mate in a garage use theirs. On the other side is the fact this stuff does the job brilliantly well; so I'm just moaning about having three quarters of a can of stuff I'll never use. Life's tough sometimes!Verified purchase: YesCondition: New
- 19 Aug, 2025
An excellent quality product that leaves...
An excellent quality product that leaves no residue on airflow sensors. Cleans very well and a little goes a long way. Great value for something that works so well. Arrived quickly, safely and well packagedVerified purchase: YesCondition: New
