

🛠️ Give your engine the breath of fresh air it deserves!
LIQUI MOLY Air Flow Sensor Cleaner is a 200ml service spray designed to quickly and gently clean sensitive air flow sensors in gasoline and diesel engines. Its fast-evaporating, residue-free formula restores accurate sensor readings, improving engine performance, fuel efficiency, and transmission shifting. Trusted by professionals and DIYers alike, it prevents costly repairs by maintaining sensor health with easy, precise application.






| ASIN | B00295EEBK |
| ASIN | B00295EEBK |
| Best Sellers Rank | 193 in Automotive ( See Top 100 in Automotive ) 1 in Air Flow Sensor Cleaners |
| Brand | Liqui Moly |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,889) |
| Customer reviews | 4.6 4.6 out of 5 stars (6,889) |
| Date First Available | 8 Sept. 2010 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Format | Spray |
| Is discontinued by manufacturer | No |
| Item model number | 4066 |
| Language | German |
| Manufacturer | Liqui Moly |
| Product Dimensions | 10 x 5 x 5 cm; 158 g |
| Units | 200.0 millilitre(s) |
| Volume | 200 Millilitres |
| Weight | 0.21 Kilograms |
R**A
Simple solution that saved me a potentially expensive garage visit
Here's a detailed review for the LIQUI MOLY Air Flow Sensor Cleaner: Simple solution that saved me a potentially expensive garage visit ⭐⭐⭐⭐⭐ My car had been experiencing rough idling and occasional stalling, symptoms that typically point to expensive engine diagnostics and repairs. Before heading to the garage for what I expected to be a costly investigation, I decided to try cleaning the mass air flow sensor myself with this LIQUI MOLY cleaner - and I'm glad I did. Effectiveness and results: The transformation was immediate and impressive. After spraying the sensor according to the instructions and letting it dry, the rough idling completely disappeared and the engine returned to smooth operation. What I thought might be a major engine issue turned out to be simply a dirty MAF sensor that this cleaner handled perfectly. The car now runs as smoothly as it did when newer. Ease of use: The process couldn't be simpler - locate the sensor, spray, wait for it to dry, and reassemble. The 200ml can provides plenty of product with a precise spray pattern that makes it easy to target the sensor elements without oversaturating. Clear instructions on the can help even novice DIYers feel confident about the process. Value proposition: At under £10, this saved me what could easily have been a £100+ diagnostic fee plus labor costs at a garage. Even if you only use it once, the savings are substantial. The can contains enough product for multiple applications, making it excellent value for money. Quality and reliability: LIQUI MOLY has a solid reputation for automotive chemicals, and this product lives up to that standard. The cleaner evaporates cleanly without leaving residue, and I've had no issues with sensor damage or performance problems after use. Practical considerations: The spray can is compact and stores easily in a garage or toolbox. The product has a reasonable shelf life, so you can keep it on hand for future maintenance. Bottom line: This is one of those products that can save significant money and hassle. If you're experiencing engine performance issues that might be MAF sensor related, this is definitely worth trying before expensive garage diagnostics. It's become a permanent addition to my basic car maintenance toolkit.
M**K
Great. Strong smelling. Powerful. Just like how I like my women
Used this Liqui Moly airflow sensor cleaner and honestly it felt like I just gave my engine a lung transplant. A few sprays and the sensor went from “wheezing pensioner” to “Olympic sprinter” in about 30 seconds. The idle smoothed out, throttle response sharpened up, and my MPG actually crept up like it was trying not to get noticed. Engine feels cleaner, happier, and way less moody on cold starts. Super easy to use too — remove sensor, spray, let it dry, pop it back in. No oily residue, no weird smells, no accidental engine explosions. Just clean, crisp airflow like the car can finally breathe properly again. If your engine feels a bit sluggish or grumpy, this stuff is basically a spa day for your airflow sensor.
T**O
Great to fix a turbo bug on my Land Rover Discovery 4
If you're looking to give your vehicle a noticeable boost in performance and efficiency, the Liqui Moly is a game-changer that deserves your attention and will probably save you some money. I kept getting an error code, and after using this I've witnessed a smoother drive. Just a few squirts of this on the turbo sensors to clear away the muck.
B**Z
Great Stuff!
Fantastic result, it fixed my hesitating ford diesel. Very happy.
S**R
Perfect cleaner
Great product my maf sensor was dirty cleaned it well. I had a sensor that had oil dried on it the cleaner sorted that out car running great again.
S**N
Does exactly what it says on the tin.
Worked fine on my Vauxhall Mokka.
A**D
good product
good value product for cleaning flow sensors
A**I
Could be better
It is okay
D**I
I used this spray for my Verna diesel MAF sensor which has not been cleaned since purchase around 16 years. The product is original and packaging was good n I thank Amazon for that. After spraying, the sensor became 100% clean n there was no traces of carbon or grime and engine drive was very smooth. I thank Amazon once again for delivering such an excellent product.
I**I
Fonctionne à merveille pour le MAF et MAP.
S**M
منتج غني عن التعربيف عالي الجودة تنظيف الدوائر الالكترونية في المنزل في السيارة منتج آمن - استخدمته في تنظيف كمبيوتر وفيوز السيارة - كان فيها غبار وشوية زيوت عالقة النتيجة ممتازة - غير موصل للكهرباء - ينشف بعد دقيقة - انصح به
M**D
This product really works , used on a Lexus LS 430 car is definitely more responsive and pulls stronger. Recommend using this product whenever you can see dirt on the maf sensor
T**D
Todo ok, hace su función sin mas. Recomiendo
Trustpilot
1 month ago
1 month ago