Automatic Locking Differential
(ASD)
In steering lock position 2, the yellow
function indicator lamp and the yellow
ASD warning lamp in the instrument
cluster should come on and then must
go out with the engine running.
Notes:
The automatic locking differential will
not engage at speeds above 15.6 mph
(25 km/h). However, above this speed,
a limited-slip effect of up to 35%
always present.
The automatic locking differential
engages when there is a difference in
speed (slip) during acceleration between
the front and rear wheels of over 1.2
mph (2 km/h) and the vehicle speed is
less than 15.6 mph (25 km/h). It will
disengage at speeds above 16.2 mph
If the ASD warning lamp comes on
with the engine running, a malfunction
has been detected. We recommend that
you visit an authorized Mercedes-Benz
dealer as soon as possible to have the
ASD checked.
When testing the parking brake on a
brake test dynamometer, turn off the
engine to avoid engaging the automatic
locking differential.
(26
km/h).
The yellow function indicator in the
speedometer comes on whenever there
is a difference in speed between the
front and rear wheels of over 1.2 mph
Caution!
In winter operation, the maximum
efficiency of the automatic locking
differential can only be attained
through the use of Mercedes-Benz
recommended M + S radial-ply tires on
all four wheels.
If the vehicle is towed with the front
axle raised, the key must not be in
steering lock position 2. Otherwise, the
automatic locking differential control
will immediately be engaged, which
may cause loss of towing control.
(2
km/h), warning of slippery road
conditions.
85
| Categories | Mercedes-Benz Manuals, Mercedes-Benz S-Class Manuals |
|---|---|
| Document Type | Free PDF Owner's Manual Download. |
| Tags | Mercedes-Benz 300SD, Mercedes-Benz W126 |
| Model Year | 1993 |
| Download File |
|
| Document File Type | |
| Publisher | mbusa.com |
| Wikipedia's Page | Mercedes-Benz W140 |
| Copyright | Attribution Non-commercial |
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