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Notes on windshield washer fluid - GLC SUV September 2024 X254 MBUX Owner's Manual

Windshield washer concentrate is highly flammable. It could ignite if it comes into contact with hot engine component parts or the exhaust system.

Make sure that no windshield washer concentrate spills out next to the filler opening.

Unsuitable windshield washer fluid may damage the plastic surface of the exterior lighting.

Only use windshield washer fluid which is also suitable for use on plastic surfaces, e.g. MB SummerFit or MB WinterFit.
Do not mix MB SummerFit and MB WinterFit with other windshield washer fluids.

Do not use distilled or de-ionized water. Otherwise, the fill level sensor may be triggered erroneously.

    Recommended windshield washer fluid:

    • above freezing point: e.g. MB SummerFit
    • below freezing point: e.g. MB WinterFit

For the correct mixing ratio, refer to the information on the antifreeze container.

Mix washer fluid with windshield washer fluid all year round.

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