Liqui Moly Radiator Stop Leak Plus – 250ml

SKU: 2533 | Professional Cooling System Leak Sealant

Small coolant leaks don’t announce themselves politely—they quietly overheat engines and empty wallets. Liqui Moly Radiator Stop Leak Plus is the smart, preventative solution designed to permanently seal hairline cracks and minor leaks in automotive cooling systems before they turn into major repairs.

This advanced solids dispersion, stabilized in a carrier fluid, circulates safely through the cooling system and seals leaks reliably and permanently, without clogging or harming vital components. Think of it as precision engineering in a bottle.

Key Benefits & Features

• Seals hairline cracks & small leaks permanently
• Safe for aluminum radiators
• No negative impact on water pumps or heater cores
• Compatible with all conventional coolants & antifreezes
• Suitable for systems with coolant/water filters
• Quick application – no dismantling required

No shortcuts, no blockages, no “temporary fixes.” Just German-engineered efficiency doing what it does best.

Application Areas

Liqui Moly Radiator Stop Leak Plus is suitable for use in cooling systems of:

• Passenger cars
• Commercial vehicles
• Buses
• Motorcycles & two-wheeled vehicles

It works seamlessly in modern and older cooling systems, including those equipped with coolant filters.

How to Use (Application Instructions)

1. Shake well before use
2. Add contents to the cold cooling system
3. Start the engine and turn the heater to warm
4. Drive the vehicle for at least 10 minutes

📌 One 250ml bottle treats up to 10 liters of coolant

Simple, efficient, and workshop-approved.

Technical Information

• Product Type: Cooling system leak sealant
• Formulation: Solids dispersion in carrier fluid
• Volume: 250 ml
• Treatment Capacity: Up to 10 liters of coolant
• Compatibility: All standard coolants & antifreezes
• Radiator Material: Aluminum & conventional metals

Why Choose Liqui Moly Radiator Stop Leak Plus?

Because replacing a radiator over a pinhole leak is like rebuilding an engine because of a loose bolt. Liqui Moly delivers a targeted, professional-grade solution trusted by workshops worldwide—saving time, money, and unnecessary component replacements.

Perfect for preventive maintenance or emergency leak control, this product belongs in every serious driver’s toolkit.