Mercedes-Benz R-Class Owner's Manual page 352

Rear axle
Summer tyres
Light-alloy wheels
Spare wheel*
Depending on the country, the engine and the wheels fitted, your vehicle may be equipped with TIREFIT or a collapsible emergency spare
wheel*.
!
A tyre pressure of 3.0 bar/44 psi must be set for the collapsible emergency spare wheel*.
i
Vehicles with MOExtended tyres (tyres with run-flat characteristics) are not equipped with a TIREFIT kit at the factory.
18" Emergency Tyres
spare
Tyre pressure 3.0 bar
50
wheel*
Wheels
19" Emergency Tyres
spare
Tyre pressure —
50
wheel*
Tyres
Snow chains not permitted.
49
50 Snow chains not permitted.
* optional
All models
49 265/40 ZR21 105Y XL
9J x 21 ET 48
All models except R 500 4MATIC
195/75 - 18 106P
6.5B x 18 ET 40
—
—
Tyres and wheels
R 500 4MATIC
—
—
—
185/65 - 19 104P
3.0 bar
5.5B x 19 ET 13
Technical data
Z
349