Service products and capacities
369
Refrigerant of the air-conditioning
system
Model
Engine
model
MB
Approval
The air-conditioning system is filled with
R134a refrigerant and a special PAG
lubricant.
GL 350 BlueTEC
GL 450
642
273
273
229.51
229.5
229.5
GL 550
! Never use refrigerant R 12 (CFC) or
mineral lubricants. Otherwise, you could
damage the air-conditioning system.
i MB Approval is stated on the containers.
Lubricant additives
Brake fluid
!
Do not mix any lubricant additives with
G Warning!
the engine oil. This could damage the
engine. Damage resulting from the use of
such lubricant additives in the engine oil is
not covered by the Mercedes-Benz Limited
Warranty.
The brake fluid constantly absorbs moisture
from the air; this lowers its boiling point.
If the boiling point of the brake fluid is too low,
vapor pockets may form in the brake system
when the brakes are applied hard (e.g. when
driving downhill). This would impair braking
efficiency.
Engine oil viscosity
Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
You should have the brake fluid renewed at
regular intervals. The brake fluid change
intervals can be found in the Service Booklet.
Using the table below, make sure that the SAE
classification (viscosity) is sufficient for the
temperatures at which the vehicle is
operated. The low temperature
Only use brake fluid approved by Mercedes-
Benz. Information about approved brake
fluids can be obtained from any authorized
Mercedes-Benz Center.
characteristics of engine oils can deteriorate
significantly, e.g by aging, soot and fuel
deposits. It is therefore recommended that
you carry out oil changes regularly using an
approved engine oil with the appropriate SAE
classification.
Coolant
Important safety notes
The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
Ranti-corrosion protection
Rantifreeze protection
Rraising the boiling point
The cooling system is filled with coolant at the
factory which contains antifreeze/corrosion
inhibitor that ensures protection down to
approximately -35 ‡ (-37 †).
Z
| Categories | Mercedes-Benz GL-Class Manuals, Mercedes-Benz Manuals |
|---|---|
| Tags | Mercedes-Benz GL350 BlueTEC, Mercedes-Benz GL450, Mercedes-Benz GL550, Mercedes-Benz X164 |
| Model Year | 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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