Additive, leak detection LIQUI MOLY 3351
- EAN: 4100420033513
- Container type: Box
- Volume [ml]: 200
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- Product line: Motor-Lecksucher Ansaugbereich, P000531
- Brand: Liqui Moly
- Model: 3351
Purpose and Specifications
The LIQUI MOLY 3351 Engine Leak Detector Suction Area is a 200 ml spray designed to pinpoint air leaks in your engine's intake system, like hoses, gaskets, and manifolds. Spray it on suspect areas while the engine runs - leaks make the idle rough or cause smoke, making diagnosis fast and easy without disassembly.
Works on gasoline and diesel engines from -30°C to 120°C, safe for rubber and plastic parts. One 200 ml can covers multiple tests, ideal for DIY mechanics or pros. Shelf life is 5 years unopened, store in a cool dry place.
When to Use / Replace?
Use at 50,000 km or every 24 months if you notice rough idling, power loss, or high emissions - common signs of intake leaks causing poor fuel mix and engine strain. Test after intake work or if vacuum hoses crack from age/heat. No replacement needed; use fresh can if expired or over 2 years old.
Practical benefits: Saves repair costs by finding leaks early, restores smooth running, boosts fuel efficiency up to 10% once fixed.
FAQ
Q: Is it safe for my turbo or modern sensors?
A: Yes, formula won't harm sensors, turbos, or plastics - clears quickly without residue.
Q: How long does testing take?
A: Under 10 minutes - spray, listen for idle change or watch for smoke.
Q: Can I use it on wet or dirty engines?
A: Best on dry surfaces; wipe clean first for accurate results.
Shipping & delivery
We deliver across the European Union. Orders confirmed on business days are prepared and handed to the carrier the same or the next business day.
Delivery methods
Courier delivery to your door, or pickup at parcel lockers and points across our carrier networks.






Delivery time
Usually 1–5 business days, depending on destination and carrier.
Shipping cost
Calculated automatically at checkout by weight and destination. Free shipping may apply above a store-specific order value.
Packaging — built to arrive intact
Oil and lubricants are liquids, so we pack every order to reach you perfectly. This is the care that goes into each parcel:
The result: a clean, sealed, undamaged parcel — because getting the oil to you intact is the whole point.
Returns
14-day right of withdrawal under EU consumer law. Items must be unused and in original, unopened packaging.
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