Page 372 of 397

Radio type approval for the tyre pres-
sure monitor Country Radio type approval number
Argentina MW2433A
H-12337
GG4
H-12338
Brazil 2770-12-8001
Model: MW2433A
0381-13-8001
Model: GG4
Abu Dhabi
Dubai TRA, Registered NO
ER0092100/12
TRA, Registered NO
ER0099792/12
TRA, Registered NO
ER0076990/11
Dealer NO: DA0047074/10
Jordan Model: Gen Alpha Wal 2 TPMS
transmitter
Type Approval Number:
TRC/LPD/2012/114
Model: Gen Gamma Gen 4
433.92 Mhz.
Type Approval Number:
TRC/LPD/2012/190
Model: Corax 3 MRXMC34MA4
Type Approval Number:
TRC/LPD/2011/158
Type Number: LPD Morocco MR7319 ANRT 2012/
11/07/2012
MR7672 ANRT 2012/
23/11/2012
MR6706 ANRT 2011
Moldova 1024
Philip-
pines No: ESD-1206394C
No: ESD-1306871C
Serbia И 011 12 Country Radio type approval number
Singapore Compliance with IDA Standard
DA- 103365
South
Africa TA-2012/719
TA-2012/1540
TA-2011/1370
Changing a wheel
Flat tyre
You can find information on what to do in the
event of a flat tyre in the "Breakdown assis-
tance" section (Y page 346). Information on
driving with MOExtended tyres in the event of a flat tyre can be found under "Breakdown assis-
tance" (Y page 347).
Vehicles with an emergency spare wheel: in
the event of a flat tyre, fit the emergency spare
wheel according to the description under "Fit-
ting a wheel" (Y page 370). Interchanging the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tyres have different dimensions. The wheel brakes or suspension components may also be damaged. There is a risk of acci-
dent.
Interchange front and rear wheels only if the
wheels and tyres are of the same dimensions.
! On vehicles fitted with a tyre pressure mon-
itor, electronic components are located in the wheel.
Tyre-fitting tools should not be applied in thearea of the valve, as this could damage the
electronic components.
Only have tyres changed at a qualified spe-
cialist workshop.
Interchanging the front and rear wheels of dif-
fering dimensions can render the general oper-
ating permit invalid.
Observe the instructions and safety notes in the "Fitting a wheel" section (Y page 370). Changing a wheel
369Wheels and tyres Z
Page 389 of 397

Brake fluid
G
WARNING
The brake fluid continuously absorbs mois-
ture from the air. This results in the boiling
point of the brake fluid lowering. If the boiling
point of the brake fluid is too low, vapour
pockets may form when the brakes are sub-
jected to a heavy load. This would impair brak- ing efficiency. There is a risk of an accident.
Have the brake fluid renewed at the prescri-
bed intervals.
Comply with the important safety notes for ser- vice products when handling brake fluid
(Y page 381).
The brake fluid change intervals can be found in the Service Booklet.
Only use brake fluid approved by Mercedes-
Benz according to MB-Freigabe or MB-Approval
331.0.
Information about approved brake fluid can be
obtained at any qualified specialist workshop or
on the Internet at
http://bevo.mercedes-benz.com.
i Have the brake fluid regularly replaced at a
qualified specialist workshop in accordance
with the replacement intervals and the
replacement confirmed in the Service Book-
let. Coolant
Important safety notes G
WARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you top up
the antifreeze. Make sure that antifreeze is
not spilled next to the filler neck. Thoroughly
clean the antifreeze from components before
starting the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine. Further information on coolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB Specifications for Service
Products 310.1, e.g. on the Internet at
http://bevo.mercedes-benz.com. Or contact
a qualified specialist workshop.
! Always use a suitable coolant mixture, even
in countries where high temperatures prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Service Booklet.
Observe the important safety notes for service
products when handling coolant (Y page 381).
The coolant is a mixture of water and anti-
freeze/anti-corrosion additive. It is responsible
for the following:
R corrosion protection
R antifreeze protection
R raising the boiling point
If antifreeze/corrosion inhibitor is present in the
correct concentration, the boiling point of the
coolant during operation will be approximately
130 †.
The antifreeze/anti-corrosion additive concen-
tration in the engine cooling system should:
R be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -37 †.
R not exceed 55% (antifreeze protection down
to -45 †). Heat will otherwise not be dissipa- ted as effectively.
Mercedes-Benz recommends an antifreeze/
anti-corrosion additive concentrate in accord-
ance with MB Specifications for Service Prod-
ucts 310.1.
i When the vehicle is first delivered, it is filled
with a coolant mixture that ensures adequate
antifreeze and corrosion protection.
i The coolant is checked at every mainte-
nance interval at a qualified specialist work-
shop. 386
Service products and capacitiesTechnical data
Page 393 of 397

i
If the load on the front axle is reduced when
pulling away on a steep uphill slope, the front
wheels have a tendency to spin. 4ETS recog-
nises this and brakes the wheels accordingly. The rear wheel torque is increased and it is
easier to pull away.
For further information about maximum gradi-
ent-climbing capability, see (Y page 180).Trailer tow hitch
Trailer loads
Trailer loads, noseweights and axle
loads !
Use a drawbar noseweight as close as pos-
sible to the maximum permissible nose-
weight. Do not use a noseweight of less than
50kg, otherwise the trailer may come loose.
Note that the payload and the rear axle load
are reduced by the actual payload.
Missing values were not available at the time of going to print. GLS 400 4M
ATIC Permissible trailer load,
unbraked
750 kg
Permissible trailer load,
braked (at a minimum gra-
dient-climbing capability
of12%from a standstill)
3500 kg
Maximum drawbar nose-
weight (the drawbar nose-
weight is not included in
the trailer load)
140 kg
Permissible rear axle load
during trailer towing
1925 kg
GLS 500 4M
ATIC Permissible trailer load,
unbraked
750 kg
Permissible trailer load,
braked (at a minimum gra-
dient-climbing capability
of12%from a standstill)
3500 kg GLS 500 4M
ATIC Maximum drawbar nose-
weight (the drawbar nose-
weight is not included in
the trailer load)
140 kg
Permissible rear axle load
during trailer towing
1900 kg
Mercedes‑A
MG GLS 63 4 MATIC Permissible trailer load,
unbraked
Permissible trailer load,
braked (at a minimum gra-
dient-climbing capability
of12%from a standstill)
Maximum drawbar nose-
weight (the drawbar nose-
weight is not included in
the trailer load)
Permissible rear axle load
during trailer towing
GLS 350 d 4
MATIC
(166.824) Permissible trailer load,
unbraked
750 kg
Permissible trailer load,
braked (at a minimum gra-
dient-climbing capability
of12%from a standstill)
3500 kg
Maximum drawbar nose-
weight (the drawbar nose-
weight is not included in
the trailer load)
140 kg
Permissible rear axle load
during trailer towing
1955 kg390
Trailer tow hitchTechnical data