Mercedes-Benz E-Class: Refrigerant of the air-conditioning 
system - Service products and capacities - Technical data - Mercedes-Benz E-Class Owners ManualMercedes-Benz E-Class: Refrigerant of the air-conditioning system

The air-conditioning system is filled with R134a refrigerant and a special PAG lubricant.

Never use refrigerant R 12 (CFC) or mineral lubricants. Otherwise, you could damage the air-conditioning system.

    Engine oil
    Please bear the following in mind The engine oils are matched to the performance of Mercedes-Benz engines and service intervals. You should therefore only use engine oils and oil filters that a ...

    Brake fluid
    WARNING Over a period of time, the brake fluid absorbs moisture from the air; this lowers its boiling point. If the boiling point of the brake fluid is too low, vapor pockets may form in t ...

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