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Checking the wheel clearance
* NOTE Damage to the steering linkage
due to snow chains
If the clearance between the snow chain and
steering linkage is less than 25 mm, the snow
chain could damage the steering linkage.
In this case, remove the snow chains
#
again.
Have the steering geometry checked at
#
a qualified specialist workshop.
Apply the parking brake.
#
Fit the snow chains in accordance with the
#
fitting instructions of the chain manufacturer.
Start the engine.
#
Turn the steering wheel towards the co-driver
#
side to the stop.
With the steering on full lock, there must be a
clearance of at least 30 mm between the
snow chain and the drag link.
Cold climate package
Cold-start limits
Without special equipment, your vehicle is capa‐
ble of starting at temperatures as low as -20 °C.
When fitted with the special equipment and filled
with cold-resistant operating fluids, your vehicle
can be started at temperatures as low as -30 °C.
%
At temperatures lower than the stated cold-
start limits, engine starting may be impaired
despite taking the appropriate measures.
Overview of special equipment of the cold cli‐
mate package
The following special equipment improves the
starting capability of your vehicle at low outside
temperatures:
fuel preheating
R
coolant preheater
R
heated electronic air processing unit
R
auxiliary heating
R
Cold-resistant operating fluids
Assembly
Mercedes-Benz Specifica‐
tions for Operating Fluids
(Sheet No.)
Fuel system
Winter diesel fuel
up to -22°C
Engine
Engine oil (228.51)
SAE 5W 30
A 000 989 69 01
Transmission,
Transmission oil (235.11)
transfer case
SAE 75W 90
A 001 989 28 03
All-wheel drive
Hypoid gear oil (235.8)
front axle, rear
SAE 75W 90
axles, axle
A 001 989 27 03 or
through drive
A 001 989 53 03
Steering
Hydraulic fluid (345.0)
A 001 989 24 03
Engine cooling
Coolant (325.5)
system
Mixing ratio
Coolant/50% by volume
Water/50% by volume
Hydraulic fluid (345.0): the use of the hydraulic
fluid is not permitted in vehicles with a steered
leading/trailing axle. A list of approved operating
fluids can be found in the Mercedes-Benz Specifi‐
cations for Operating Fluids.
Have the vehicle converted to cold-resistant oper‐
ating fluids at a qualified specialist workshop.
Remember to fill the vehicle fuel tank with winter
diesel fuel when it is time to do so.
%
If the vehicle is mainly operated at low tem‐
peratures, the maintenance intervals are
reduced.
Function of the coolant preheater
The coolant preheater consists of an electrical
heating element and is installed in the engine
crankcase. The coolant preheater is operated
independently of the on-board electrical system
with a voltage of 230 V.
Driving mode 303
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