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490
Operation
At the gas station
̈ Take off fuel filler cap and set it in di-
rection of arrow 2 in the recess on the
inside of fuel filler flap 4.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.
̈ Only fill your tank until the filler nozzle
unit cuts out – do not top up or over-
fill.
̈ Replace fuel cap by turning it clockwise
until it audibly engages.
̈ Close the fuel filler flap.
Check regularly and before a long trip
Example illustration from S 550
1 Coolant level
2 Brake fluid
3 Windshield washer and headlamp
cleaning system
Warning! G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas
discharge. This could cause the gas to spray
back out when removing the fuel pump noz-
zle, which could cause personal injury.
i
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.
More information on gasoline can be found in the
Factory Approved Service Products pamphlet.
i
Leaving the engine running and the fuel cap
open can cause the yellow engine malfunction
indicator lamp ± to illuminate.
For more information, see the “Practical hints”
section (
୴ page 547).
i
Opening the hood (୴ page 492).
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