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Observe the following points:
We recommend window cleaner concentrates approved by Porsche. Your authorized Porsche dealer will be pleased to advise you.
The washer fluid reservoir for the windshield, rear window and headlights is located at the rear left in the engine compartment (blue cap).
The warning message appears on the multifunction display of the instrument panel if the washer fluid level is too low.
In this case, the remaining quantity is only approx. 0.53 qt. (0.5 liter). The maximum filling capacity is approx. 4.76 qt. (4.5 liters), or 7.93 qt. (7.5 liters) on vehicles with headlight cleaning system.
Adding washer fluid