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Practical hints
What to do if …
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B
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coolant
See Oper. Manual
The coolant level is too low. ̈ Add coolant (୴ page 280).
Comply with all warnings while doing so.
̈ If you have to add coolant frequently, have the
cooling system checked by an authorized
Mercedes-Benz Center.
• The cooling fan for the coolant is
malfunctioning.
̈ Observe the coolant temperature gauge in the
instrument cluster (
୴ page 27).
If the coolant temperature is under 120°C,
you may continue driving to the nearest spe-
cialist workshop.
̈ Avoid placing heavy loads on the engine
(e.g. by driving uphill) as well as stop-and-go
traffic.
̈ Have the fan replaced as soon as possible.
Warning! G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You can be seriously burned.
!
Do not ignore the low engine coolant level
warning. Extended driving with this message and
symbol displayed may cause serious engine
damage not covered by the
Mercedes-Benz Limited Warranty. Do not drive
without sufficient amount of coolant in the cool-
ing system. The engine will overheat, causing
major engine damage.