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Operation
Engine compartment
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
SLK 350 (example)
1 Coolant expansion tank
2 Cap
3 Marking bar in the expansion tank
̈ Using a rag, turn cap 2 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
̈ Continue turning cap 2 counterclock-
wise and remove it.
The coolant level is correct if the level
ț for cold coolant: reaches marking
bar 3 in expansion tank 1
ț for warm coolant: is approximately
0.6 in (1.5 cm) higher
̈ Add coolant as required.
̈ Replace and tighten cap 2.
For more information on coolant, see
“Coolants” (
୴ page 453).
Battery
Your vehicle’s battery is located in the en-
gine compartment.
The battery should always be sufficiently
charged in order to achieve its rated ser-
vice life. Refer to the Maintenance Booklet
for battery maintenance intervals.
If you use your vehicle mostly for
short-distance trips, you will need to
have the battery charge checked more
frequently.
When replacing the battery, always use
batteries approved by Mercedes-Benz.
If you do not intend to operate your vehicle
for an extended period of time, consult an
authorized Mercedes-Benz Center about
steps you need to observe.