Mercedes-Benz E-Class: MOExtended tires (tires with run-flat 
properties) - Operation - Wheels and tires - Mercedes-Benz E-Class Owners ManualMercedes-Benz E-Class: MOExtended tires (tires with run-flat properties)

MOExtended tires (tires with run-flat properties) allow you to continue driving your vehicle even if one or more tires are entirely deflated.

MOExtended tires may be used only in conjunction with the activated tire pressure loss warning system or the activated tire pressure monitoring system and only on wheels specifically tested by Mercedes-Benz.

Vehicles equipped with MOExtended tires are not equipped with a TIREFIT kit at the factory. It is therefore recommended that you additionally equip your vehicle with the TIREFIT kit if you mount tires that do not feature run-flat properties, e.g. winter tires.

A TIREFIT kit can be obtained from an authorized Mercedes-Benz Center.

You will find notes on driving with MOExtended tires in the "Breakdown assistance" section

    Notes on selecting, mounting and replacing tires
     - Only mount tires and wheels of the same type and make.  - Only mount tires of the correct size onto the wheels.  - After mounting new tires, run them in at moderate speeds fo ...

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