About this product
- Cleans quickly and efficiently in 20 minutes
- Removes rust, oil and other dirt residues
- Suitable for all coolant types and cooling systems

About this product
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Product information
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Is your engine running hotter than usual, is the coolant dirty, or has the cooling system not been cleaned for a long time? Rust, oil residue, scale, sludge, and dirt can build up inside the radiator, engine block, hoses, and cooling channels, reducing coolant circulation and cooling performance.
Lindemann Radiator Flush quickly cleans the complete cooling system before the coolant is replaced. Its powerful formula removes deposits, rust, oil, sludge, and dirt, helping restore coolant flow, improve heat transfer, and support optimal engine cooling.
Lindemann Radiator Flush is commonly used for:
When contamination restricts coolant flow or heat transfer, a cooling system flush can make a significant difference.
Lindemann Radiator Flush is added to the cooling system before the coolant is replaced. While the engine is running, the cleaner circulates through the radiator, engine block, hoses, and cooling channels to loosen rust, oil residue, scale, sludge, and other contamination.
After the cleaning process, the old coolant and loosened dirt are drained from the system. The cooling system should then be flushed with clean water before refilling it with fresh coolant.
Lindemann Radiator Flush is suitable for all modern cooling systems and can be used with all types of coolant and antifreeze. It is suitable for petrol and diesel vehicles of all brands.
The product can be added directly to the radiator on vehicles with a radiator filler opening. On vehicles without one, add it to the expansion tank where the coolant is normally filled. One 350 ml bottle is suitable for up to 6 litres of coolant.
A dirty cooling system can restrict coolant flow, reduce heat transfer, and increase the risk of overheating. Cleaning the system helps protect the radiator, engine block, hoses, and cooling channels.
Lindemann Radiator Flush is ideal for preventative cooling system maintenance, coolant replacement, and cleaning the system before using Lindemann Radiator Stop Leak.
Be careful when working on a hot cooling system. A pressurised system can release hot coolant or steam and cause serious burns. Allow the system to cool where needed and wear suitable protective clothing and gloves.
| Specification | Value |
|---|---|
| SKU | 21191 |
| Barcode | 5708331211915 |
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Usage
FAQ
In general, most additives on the additive market are fairly similar. The raw materials are the same in most products. The difference, however, lies in the ratio between the active chemical ingredients and the base ingredients such as oil and white petroleum.
The proportion of active ingredients in Lindemann additives is significantly higher than in most competing products. This results in a longer-lasting and more effective performance.
In addition, several specific Lindemann products have extra distinguishing properties.