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🔧 Quiet your engine, amplify your drive — because your ride deserves the best.
Liqui Moly Hydro Valve Additive (300 ml) is a premium German-engineered formula designed to silence noisy hydraulic lifters by optimizing tappet function. Compatible with all commercial petrol and diesel motor oils (excluding motorcycles with wet clutches), it enhances engine reliability and drivability, especially during cold starts. Trusted by thousands, it’s a simple, cost-effective solution to extend engine life and avoid expensive repairs.





| ASIN | B001CZODI2 |
| Best Sellers Rank | 126,777 in Automotive ( See Top 100 in Automotive ) 492 in Fuel Systems |
| Brand | Liqui Moly |
| Connector Type | Flanged |
| Country of Origin | Germany |
| Customer Reviews | 4.5 out of 5 stars 6,393 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Exterior Finish | painted |
| Exterior finish | painted |
| Global Trade Identification Number | 04022345039459, 04100420010095 |
| Inlet Connection Size | 12.7 Millimeters |
| Inlet Connection Type | Flange |
| Inlet connection size | 12.7 Millimeters |
| Inlet connection type | Flange |
| Item Dimensions | 5.4 x 5.4 x 18.5 centimetres |
| Item Type Name | Hydro-Lifter Additive |
| Item Weight | 0.27 Kilograms |
| Item dimensions L x W x H | 5.4 x 5.4 x 18.5 centimetres |
| Manufacturer | Liqui Moly |
| Manufacturer Warranty Description | 2 years. |
| Material | Polytetrafluoroethylene |
| Model Number | 1009 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 12.7 Millimeters |
| Outlet Connection Type | Flange |
| Part Number | P000004 |
| Size | 300 ml |
| Specification Met | API |
| Thread Size | 12.7 milímetros |
| Thread Type | flange |
| Unit Count | 300.0 millilitre |
| Valve Type | check valve |
L**E
Really good product if you understand what you’re doing
Vortec 6L V8 lifters started to make some noise especially during cold mornings and it was getting louder and louder fast. Tried to flush the engine twice but no help although engine got bit smoother. Throwed this in between the oil change and the noise completely disappeared fairly quickly. Now even that the truck is sitting 3 weeks in a weather between 0 to -15 in C (32 to 5 in F) there’s absolutely no noise in cold start while the engine is warming up. I’d still recommend the engine flush or several of them as the noise is usually about the poor oil flow (dirt all over the place) and dirty & sticky lifter rods. If this does not help, manually clean the rods and inspect the rockers. Bit time consuming but fairly simple job, tons of YouTube videos available for sure. Act fast as more noise more damage eventually. Also understand what you’ll be doing. My V8 is a 2003 engine that is a) in a good shape (piston pressures solid 13 bar) and b) the engine does not have anything fancy in it – just simple V8 (no variable this and that, no eco throttle pistons to save fuel etc.). As the magic of these is the change the oil structure from viscosity point of view you can actually do more harm than good with your engine especially with the newer ones.
J**W
Excellent product
I don't know what's in this but it worked straight away with the noise from my tappets. The garage wanted £500 to repair it. Easy to use just pour it in the same place as your oil.
M**S
Excellent Product
Excellent Product. Quick Delivery Easy to pour into engine Added to Engine immediate result. Reduced noise to zero. Highly recommended.
I**S
Ok
Ok
T**N
Wery good product
Wery good product
S**R
Thank you very much!
Thank you very much!
J**Y
Very good service
It does what's writin on it
P**L
Hydro lift
This product is liqui moly hydraulic valve lifter additive. Not Hydro Lift . Just buy hydraulic lift additive at £8.50 and not this at £14.00.
J**Z
🚗 ¡Adiós a los ruidos molestos en tu motor! 🔧
✅ Lo que mola: Elimina ruidos molestos 🔇 – Este aditivo es fantástico para reducir los ruidos de válvulas hidráulicas, haciendo que tu motor funcione de manera más suave y silenciosa. Fácil de usar 🛠️ – Solo tienes que añadirlo al aceite del motor, y el aditivo hace su trabajo. No necesitas complicarte la vida. Mejora la lubricación 🛢️ – Ayuda a mejorar la lubricación del motor, lo que reduce el desgaste de las piezas y extiende la vida útil del motor. Aumenta la eficiencia del motor 💨 – Menos ruidos y menos fricción se traducen en un motor que funciona de manera más eficiente y suave. Compatible con muchos vehículos 🚗 – Este aditivo es adecuado para una amplia gama de motores con válvulas hidráulicas. ❌ Lo que no mola tanto: No una solución para problemas graves ⚠️ – Si el ruido es causado por un problema mecánico mayor, el aditivo solo aliviará temporalmente la situación, no resolverá el problema de fondo. Requiere uso regular 🔄 – Para obtener los mejores resultados, es necesario usarlo con cierta frecuencia, por lo que no es una solución única. 💭 Veredicto final: Si tu motor hace ruidos molestos y quieres mejorar su funcionamiento sin complicarte, el Liqui Moly 1009 es una excelente opción. ¡Silencio y eficiencia para tu motor, todo en uno! 🚗🔧
C**E
Toglie rumori delle valvole motore. Ottimo
Usato dopo il cambio olio, sono spariti i rumori della valvola motore che batteva! Fantastico
W**M
Amazing product
Number 1
K**S
Sibop sesi azaldı
Sibop tıklıyordu biraz hafifledi. Daha 500 km olmadığından şimdilik tam not veremiyorum. İlerleyen kilometrelerde daha da iyileşebilir ümidindeyim.
M**.
Tolles Produkt wo wirklich hilft
Verwende das LM Hydro-Stößel Additiv schon seit vielen vielen Jahren. Vor allem bei meinen Mercedes Benz Fahrzeugen. Da habe ich welche aus den 80er und 90ern sowie 2000ern. Ab einer gewissen Laufleistung hört man die Hydros klappern. Da die Autos aber nur sehr wenig gefahren werden gehe ich nicht her und tausche überall die Hydros. Vor allem bei den V8 wäre das ein Teurer Spaß. Da habe ich das Additiv entdeckt und war erst skeptisch. Doch es hat meinen W201 2.6 sofort geholfen und das Klappern war nach wenigen Kilometern Geschichte. Zuletzt habe ich es in einem W210 430er mit über 300.000 Km Laufleistung verwendet. Zwei Flaschen rein und vom Motor kam kein Geklapper mehr. Läuft jetzt wieder schön weich und ruhig. Habe es auch in unserem Nissan Micra kürzlich reingeschüttet weil der mit 130.000 auch langsam anfing zu klappern. Auch da ist jetzt wieder Ruhe. Einfach bei jedem Ölwechsel mit rein und man hat seine Ruhe. PS: Natürlich kann das nicht helfen wenn die Hydros schon komplett hinüber sind. Aber im Anfangsstadium wenn sie das klappern anfangen hilft es meiner Meinung nach sehr gut.
Trustpilot
4 days ago
1 week ago