Liqui Moly Radiator Anti-Freeze KFS12++ 1Ltr 21134
Special order please allow 3-10 days to ship
Liqui Moly Radiator Antifreeze KFS 12++ is a high-performance ethylene glycol-based coolant and antifreeze concentrate formulated with hybrid inhibitor technology for long-term cooling-system protection.
It provides excellent protection against frost, corrosion and overheating and is particularly suited to modern engines and cooling systems containing aluminium, cast iron, copper alloys or combinations of these materials.
KFS 12++ is recommended by Liqui Moly for applications requiring VW/Audi/SEAT/Škoda TL 774-G (G12++), as well as Mercedes-Benz MB 325.5 and MAN 324 Type Si-OAT.
Key Features:
✔ G12++ Coolant Technology – Recommended for applications requiring VW Group TL 774-G / G12++.
✔ Excellent Corrosion Protection – Helps protect metals and alloys throughout the cooling system.
✔ Overheating Protection – Supports effective engine temperature management under demanding conditions.
✔ Frost Protection – Provides protection down to -68°C, depending on the mixing ratio.
✔ Hybrid Inhibitor Technology – Formulated for long-term cooling-system protection.
✔ Excellent Aluminium Protection – Particularly suitable for all-alloy engines operating at higher temperatures.
✔ Ethylene Glycol Based – Concentrated antifreeze with corrosion inhibitors.
✔ Amine-Free – Contains no amines.
✔ Borate-Free – Contains no borates.
✔ Nitrite-Free – Contains no nitrites.
✔ Phosphate-Free – Contains no phosphates.
✔ Broad Application Range – Suitable for passenger cars, commercial vehicles, buses, agricultural machinery and stationary engines.
✔ Mixable with Compatible Coolants – Miscible with coolants based on ethylene glycol.
Specifications & Recommendations:
Liqui Moly recommends Radiator Antifreeze KFS 12++ for vehicles or systems requiring:
- Audi TL 774-G / G12++
- Volkswagen TL 774-G / G12++
- SEAT TL 774-G / G12++
- Škoda TL 774-G / G12++
- Mercedes-Benz MB 325.5
- MAN 324 Type Si-OAT
Product Specifications:
Brand: Liqui Moly
Product: Radiator Antifreeze KFS 12++
Product Type: Concentrated Engine Coolant / Antifreeze
Coolant Type: G12++ / Si-OAT Application
Base: Ethylene Glycol with Inhibitors
Colour / Appearance: Bright Red, Clear
Density at 20°C: 1.114 g/cm³
Water Content: 3%
pH Value: 8.4–8.55
Flash Point: 122°C
Odour: Weak
Shelf Life: 36 Months in Original Sealed Container
Recommended Storage Temperature: -20°C to short-term +35°C
Form: Concentrate – Requires Dilution
Mixing Ratio & Frost Protection:
| KFS 12++ Concentrate | Water | Frost Protection |
|---|---|---|
| 1 Part | 2 Parts | Down to -20°C |
| 1 Part | 1 Part | Down to -40°C |
| 2 Parts | 1 Part | Down to -68°C |
Liqui Moly recommends using distilled water when preparing the coolant mixture.
Areas of Application:
Suitable for cooling systems in:
- Petrol and diesel passenger vehicles
- Commercial vehicles
- Buses
- Agricultural machinery
- Stationary engines and equipment
- Cast-iron engines
- Aluminium engines
- Mixed cast-iron/aluminium engines
- Cooling systems containing aluminium and/or copper alloys
It is especially suitable for all-aluminium engines requiring increased aluminium protection at high operating temperatures.
Application:
Before replacing the coolant, clean contaminated cooling systems where necessary and thoroughly flush with water.
Mix Liqui Moly KFS 12++ concentrate with water according to the required level of frost protection. Distilled water is recommended.
Fill and bleed the cooling system according to the vehicle manufacturer's procedure. Always follow the manufacturer's specified coolant type, capacity and replacement interval.
Important Notes:
Concentrated Coolant: KFS 12++ must be mixed with water according to the required protection level and should be stored undiluted.
Check Vehicle Specification: Always confirm that G12++ / TL 774-G or another listed specification is suitable for the vehicle before use.
Coolant Mixing: Although miscible with ethylene glycol-based coolants, mixing different coolant technologies can affect overall performance. For best results, use the correct coolant specification throughout the system.
- layers Catalog
- LIQUI MOLY

