Releasing The Parking Lock Manually - Mercedes-Benz 2012 C-Class Operator's Manual

Problems with the transmission
Problem
The transmission has
problems shifting gear.
The acceleration ability
is deteriorating.
The transmission no
longer changes gear.

Releasing the parking lock manually

In the event of an electrical malfunction, it is
possible to release the selector lever lock
manually to move it out of position P, e.g. if
you wish to tow the vehicle away.
! Do not use any sharp-edged objects to
remove the selector lever gaiter from the
center console. This could damage the
selector lever gaiter.
Possible causes/consequences and M Solutions
The transmission is losing oil.
X
Have the transmission checked at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center,
immediately.
The transmission is in emergency mode.
It is only possible to shift into second gear and reverse gear.
X
Stop the vehicle.
X
Shift the transmission to position P.
X
Switch off the engine.
X
Wait at least 10 seconds before restarting the engine.
X
Shift the transmission to position D or R.
If D is selected, the transmission shifts into second gear; if R is
selected, the transmission shifts into reverse gear.
X
Have the transmission checked at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center,
immediately.
I n f o r ma t i o n P r o v i d e d b y :
Automatic transmission
X
Apply the parking brake.
X
Pry off selector lever gaiter : with a flat,
blunt object, (e.g. a screwdriver wrapped in
cloth) from the right-hand edge, pulling it
up and out.
X
Press release buttons ; down and
simultaneously move the selector lever out
of position P.
The selector lever can now be moved freely
until it is returned to position P.
Transfer case
This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always
transmitted to both axles.
! Performance tests may only be carried
out on a 2-axle dynamometer. The brake
system or transfer case could otherwise be
damaged. Contact a qualified specialist
workshop for a performance test.
Mercedes-Benz recommends that you use
149
Z