Coolant concentrate that protects the engine against freezing, overheating and corrosion – mixed in a ratio tailored to the climate and application.
HEPU P999 – coolant concentrate
The P999 series is a complete range of HEPU® coolant concentrates developed for modern cooling systems – from passenger cars to heavy-duty vehicles. Supplied undiluted, it allows workshops to prepare exactly the right mixing ratio for the climate and specific application, providing year-round protection against freezing, overheating and corrosion.
Key features:
Benefits:
| Color | Blue |
| Specification | G11 / TL 774C |
| Formula | Free from nitrites, amines and phosphates (NAP-free) |
| Production | Made in Germany |
Before use, the concentrate must be diluted with demineralised water in the appropriate ratio.
The prepared solution provides the required freezing point. If a different level of protection is required, the mixing ratio can be adjusted according to the vehicle’s operating conditions.
Mixing ratio (product / demineralised water)
| Protection down to | Concentrate P999 | Demineralised water |
| −8 °C | 20% | 80% |
| −15 °C | 30% | 70% |
| −25 °C | 40% | 60% |
| −38 °C | 50% | 50% |
Note: Do not pour undiluted concentrate into the radiator
Audi/VW G11 / TL 774C · Audi/VW G 011 A8C A1 · BMW N60069.0 · JIS K 2234 · MB 325.0/325.2 · MB 000 989 08 25 · MAN 324 NF · Opel/GM B 040 0240 / 1940 656 · Ford 1 047 035 · Chrysler MS-7170 · Fiat 9.55523 · BS 6580 · Iveco 18-1830 · MTU MTL 5048 · ASTM D3306/D4985 · AFNOR NF R15-601
SAFETY WARNINGS
Warning: Harmful if swallowed. May cause damage to the kidneys through prolonged or repeated exposure. Keep out of reach of children. Wash hands thoroughly after handling. IF SWALLOWED: Immediately contact a doctor. Rinse mouth. Dispose of contents/container in a waste container. Contains: ethylene glycol.

MANUFACTURER AND ENTITY RESPONSIBLE FOR PLACING THE PRODUCT ON THE EUROPEAN UNION MARKET
HEPU® Autoteile GmbH
Am Kreuzweg 2, 32689 Kalletal-Hohenhausen
Germany
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HEPU® Coolant Catalogue
Discover the complete range of HEPU® coolants and coolant concentrates in one catalogue. From high-quality coolant concentrates (P999 series) and ready-to-use coolants (P900 / P888) to windscreen washer fluid, windscreen de-icer and AdBlue – all developed without the addition of nitrites and phosphates and compliant with the specifications of individual vehicle manufacturers.
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