C Harge Indicator Lam P; O Il P Ressure G Auge; E Ngine O Il C O Nsu M Ption; Lamp - Mercedes-Benz 350 SDL TURBO 1991 Owner's Manual

C h arg e In d icato r Lam p
Should the c ha rge in dica tor lam p fail
to com e on prior to starting w hen the
key is in steering lock position
should it fail to go out after starting or
during operation, this indicates a fau lt
w hich m ust be repaired at an a u th o r­
ized M E R C E D E S -B E N Z d e aler im m e­
diately.
If the charge indicator lam p com e s on
w h ile the en gine is running, this m ay
indicate that the po ly-V -b elt has
broken. Should this con dition occur,
the po ly-V -b elt m ust be replaced be ­
fore con tinu ing to o p era te the vehicle.
O therw ise, the engine will ove rhe at
due to an inoperative w a te r pum p
w hich m ay result in da m ag e to the
engine.
60
O il P re ss u re G au ge
T h e oil pre ssure at idle spe ed m ay
drop to 0.3 bar (4.4 psi) if the en gine
2 is at opera ting tem pe rature . T h is will
or
not je o p a rd ize its operational
reliability.
P ressure m ust, how ever, rise im m e ­
d iately upon acceleration.
En gin e Oil C o n su m p tio n
Engine oil con sum p tion can only be
de term in ed after a certain m ileage
has been cove red . D uring the break-
in period, high er oil con sum p tion m ay
be noticed and is norm al. F requent
d riving at high en gine speeds results
in increased con sum p tion.
Low Enginge Oil Level Warning

Lamp

T he w a rnin g lam p com es on w ith the
key in steering lock position
should go out w hen the en gine is
running.
If the w arning lam p com e s on w ith the
en gine running and at operating
te m pe rature , the en gine oil level has
dropped to ap p ro xim a te ly the m in i­
m um m ark on the dipstick. W hen this
occurs, the w arning lam p w ill first
com e on in te rm itte ntly and then stay
on if the oil level dro ps further. If no oil
leaks are noted and the re is no loss in
e n gine oil pressure, con tinu e to drive
to the ne are st service station w here
the en gine oil should be top ped to the
"fu ll" m ark of the d ip stick (see
page 72).
In addition to the w a rnin g lam p, the
en gine oil level sho uld be periodically
che cked w ith the dipstick, for exam ple
during a fuel stop, o r be fore a long trip
(see page 72).
2
and