The genuine Mercedes-Benz Purple G40 Antifreeze/Coolant, identified by part number A0009891808 09, provides freeze, corrosion and temperature protection in cooling systems that specify Mercedes-Benz approval 325.6. This review uses the available catalogue specifications to explain what the product offers, what should be checked before ordering and how to approach installation or use responsibly.
Part numbers and vehicle equipment are more reliable than appearance alone. Mercedes-Benz can revise accessories and components across model series, production dates and option packages, so a VIN-based check remains the safest final confirmation.
Mercedes-Benz Purple G40 Antifreeze/Coolant A0009891808 09: quick overview
- Product: Purple G40 Antifreeze/Coolant
- Part number: A0009891808 09
- Source category: replacement & wear parts
- Reference price: €12.37
- Review focus: features, compatibility, buying checks and practical use
What this Mercedes-Benz product offers
Its principal role is straightforward: it provides freeze, corrosion and temperature protection in cooling systems that specify Mercedes-Benz approval 325.6. The value of a genuine accessory or service item is specification consistency, including dimensions, materials, connection points and presentation intended for the corresponding Mercedes-Benz application.
Key specifications and features
- Mercedes-Benz approval 325.6
- purple/violet G40 formulation
- approximately -37°C protection at a 1:1 water mixture
- genuine Mercedes-Benz service fluid
The source listing showed a regular price of €15.67 and a special price of €12.37 when the data was collected. Prices and availability can change, so treat this as a reference rather than a permanent offer.
Compatibility and fitment checks
Check the vehicle handbook, workshop information or VIN-specific fluid specification. Coolant colour is not a reliable compatibility test, and incompatible chemistries should not be mixed.
Before purchase, compare the complete number with the existing item and request confirmation against the vehicle identification number where vehicle-specific fitment is involved. Also check dimensions, connectors, mounting points, colour and any required option codes.
Installation and use considerations
Only work on a cold cooling system. Drain or top up according to the approved procedure, use suitable water where dilution is required, bleed the system and confirm there are no leaks or temperature warnings.
If the work affects electrical systems, vehicle coding, cooling, wheels or any safety-related component, professional installation is the sensible option. Inspect the delivered item before fitting and keep its packaging until compatibility and function have been confirmed.
Who should consider this product?
This product is most relevant to owners and workshops that have already identified A0009891808 09 as the correct number or are comparing it during a VIN-based parts search. It is less suitable as a speculative purchase based only on a photograph or broad model description.
Our verdict
The genuine Mercedes-Benz Purple G40 Antifreeze/Coolant is the appropriate factory fluid when approval 325.6 is explicitly required; specification confirmation matters more than colour or packaging.
Continue exploring Mercedes-Benz products
Browse the Popular Mercedes Products hub for more genuine-part reviews, or use the Mercedes-Benz buying guides to compare accessories and plan a purchase.
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Editorial note: product specifications, prices, part-number supersessions and vehicle compatibility can change. Always verify the latest information with the seller or a Mercedes-Benz parts specialist before purchase.
