Cleaning the cooling system: how to do it properly

Over time, dirt, insects and limescale build up on the fins and in the cooling system, which reduces the cooling capacity. A dirty radiator can lead to overheating and thus damage the engine. Regular cleaning therefore ensures optimum cooling and extends the service life of the engine.

Inside: Rinse the cooling system with clear water or a special radiator cleaner. A mixture of vinegar and water can also dissolve deposits.

Outside: Rinse the radiator with water and use a soft brush to carefully remove dirt from the fins.

A Motorcycle covers helps to protect the radiator from dirt, moisture and UV rays when the motorcycle is not in use. The cooling system should also be serviced regularly and the coolant changed in accordance with the manufacturer’s instructions.

The most effective method is lukewarm water with a light jet of water, e.g. from a watering can or a garden hose without a pressure attachment. Avoid high-pressure cleaners or aggressive cleaning agents, as they can bend the fine fins or damage the radiator mesh.

Place a wet microfiber cloth on the soiled area for a few minutes to soften the insects. Then carefully remove them with a soft brush or a soft toothbrush. Never use sharp objects to help, as this will damage the cooling fins.

No, high-pressure cleaners are taboo. The hard jet can bend the sensitive cooling fins or even damage the radiator mesh. Instead, use gentle water pressure, patience and soft tools such as a brush or cloth.

We recommend thorough cleaning every few weeks, especially during the insect season or after driving on country roads and under heavy loads. Regular cleaning means less deep cleaning and full cooling performance.

Slightly bent slats can be carefully straightened using a fine plastic comb or a slat straightening tool. This is only possible as long as the slats are not torn. In the case of severely damaged areas, it is better to contact a specialist company.

A soft natural bristle brush or a special detail brush for motorcycle care is ideal. It should be flexible and not too hard so as not to damage the sensitive lamellae. Toothbrushes with soft bristles are an inexpensive alternative.

Allow the radiator to air dry, preferably in a light breeze or in the shade. Never use compressed air or heat sources to help. Before the next ride, check whether there are any water residues or loose foreign bodies in the radiator area.