Check Regularly And Before A Long Trip - Mercedes-Benz 2007 E -Class Wagon Operator's Manual

Operation
At the gas station
Replace fuel cap by turning it clockwise
until it audibly engages.
Close the fuel filler flap.
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Leaving the engine running and the fuel cap
open can cause the yellow fuel tank reserve
warning lamp to flash and the malfunction indi-
cator lamp ? (USA only) or the malfunction
indicator lamp ± (Canada only) to illuminate.
For more information, see also "Practical hints"
( page 382).
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Only use premium unleaded gasoline with a
minimum Posted Octane Rating of 91 (average of
96 RON/86 MON). Information on gasoline
quality can normally be found on the fuel pump.
For more information on gasoline, see the
Factory Approved Service Products pamphlet
(USA only) or contact an authorized
Mercedes-Benz Center.
322

Check regularly and before a long trip

1 Windshield washer system and head-
lamp cleaning system*
2 Brake fluid
3 Coolant level
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Opening the hood, see ( page 324).
Windshield washer system and
headlamp cleaning system*
For information on refilling the reservoir,
see "Windshield washer system and head-
lamp cleaning system*" ( page 331).
Brake fluid
!
If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks immediately. Notify an
authorized Mercedes-Benz Center immediately.
Do not add brake fluid as this will not solve the
problem. For more information, see "Practical
hints" ( page 381).
For information on brake fluid, see "Fuels,
coolants, lubricants, etc." ( page 489).