Filter
Top Products
498
Operation
Engine compartment
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
Example illustration from S 550
1 Cap
2 Coolant expansion tank
̈ Using a rag, turn cap 1 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
̈ Continue turning the cap counterclock-
wise and remove it.
The coolant level is correct if the level
ț for cold coolant: reaches the white
marking (plastic bridge) inside the cool-
ant expansion tank
ț for warm coolant: is approximately
0.6 in (1.5 cm) higher
̈ Add coolant as required.
̈ Replace and tighten cap 1.
For more information on coolant, see the
“Technical data” section (
୴ page 665).
Windshield washer system and
headlamp cleaning system
The washer fluid reservoir is located on the
left-hand side of the engine compartment
when looking in the direction of travel. It
supplies the windshield washer system
and headlamp cleaning system* with
washer fluid.
S 550 with Airmatic
1 Cap
ț Using a rag, slowly open the cap approx-
imately
1
/
2
turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.
ț Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.
୴୴