Fluid Level - A U To M A Tic Transm Ission - Mercedes-Benz 240 D 1979 Owner's Manual

C hecking Fuels Coolants
Fluid Level —
A u to m a tic Transm ission
A t regular intervals, check the
fluid level o f the autom atic trans­
mission together w ith the engine
oil level prior to every long trip, at
the latest, however, after every
3,000 miles (5,000 km).
62
Lubricants etc.
Check transmission fluid level w ith
the engine idling, parking brake en­
gaged and selector lever in posi­
tion "P". The vehicle m ust be
parked on level ground. Prior to
the check, allow engine to idle fo r
approx. 1 to 2 minutes.
Exercise utm ost cleanliness!
To w ipe the dipstick, use a clean
and lintless cloth (preferably
leather). To fill the transmission
w ith fluid, only pour it through a
fine-mesh filte r into the dipstick
opening. Even the slightest im ­
purity may cause operational
troubles.
The oil level in the transmission is
dependent upon the oil tem pera­
ture. The maximum and m inim um
oil level marks on the dipstick are
applicable references only if the
transmission fluid has reached its
normal operating tem perature of
176° F (80° C).
If, however, the transmission fluid
cools dow n to 68 — 86° F (20 —
30° C), w hich is the normal shop
tem perature range, then the maxi­
mum oil level w ill be approxim ately
1.2 in. (30 mm) below the m ini­
mum mark on the dipstick.
W e stress this point because an
oil change is normally performed
when the transmission oil has
cooled dow n to shop temperature.
The fluid level m ust not exceed the
dipstick maximum mark w ith the
fluid at operating temperature.
Drain or siphon o ff excess fluid,
if required.