Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 388

386 Breakdown assistance
Towing the vehicle with both axles on the ground
Observe the notes on the permitted towing
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methods ( page 385).
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Make sure that the battery is connected and
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charged.
When the battery is discharged, the following
actions cannot be performed:
the engine cannot be started
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the electric parking brake cannot be released
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or applied
the automatic transmission cannot be shifted
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to position i or j
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If the automatic transmission cannot be shif-
ted to position i or the driver's display in
the instrument cluster does not show any-
thing, have the vehicle transported
( page 387). A towing vehicle with lifting
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equipment is required for vehicle transporta-
tion.
* NOTE Damage due to towing away at
excessively high speeds or over long dis-
tances
The drivetrain could be damaged when towing
at excessively high speeds or over long distan-
ces.
A towing speed of 50 km/h must not be
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exceeded.
A towing distance of 50 km must not be
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exceeded.
& WARNING Risk of accident when towing a
vehicle which is too heavy
If the vehicle to be tow-started or towed away
is heavier than the permissible gross mass of
your vehicle, the following situations can
occur:
the towing eye may become detached.
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the vehicle/trailer combination may
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swerve or overturn.
Before tow-starting or towing away,
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check if the vehicle to be tow-started or
P223 0288 02
towed away exceeds the permissible
gross mass.
If a vehicle must be tow-started or towed away, its
weight must not exceed the permissible gross
mass of the towing vehicle.
Information on the permissible gross mass of
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the vehicle can be found on the vehicle identi-
fication plate ( page 496).
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Do not open the driver's door or front
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passenger door; the automatic transmission
will otherwise automatically shift to position
j.
Fit the towing eye ( page 390).
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Fasten the towing device.
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* NOTE Damage due to incorrect connec-
tion of the tow bar
Only connect the tow rope or tow bar to
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the towing eyes.
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Vehicles with tow bar: you can also attach the
tow bar to the trailer hitch.