Self-Study Program

55
Limp-home mode
In the event of faults/malfunctions which activate
the mechanical limp-home mode, 3rd gear is always
selected during vehicle operation in any gear up to
third.
If the gearbox is already in fourth, fifth or sixth gear,
the momentary gear is maintained until the selector
lever is moved into neutral or the ignition turned
off.
When driving away again or restarting the engine
in selector lever position "D" or "S", third gear is
always selected.
Reverse gear is available (R gear lock is disabled).
The maximum system pressure is set and, as a
result, maximum shift pressure is applied to the
shift elements. This results in clunky gear
engagements.
The converter lockup clutch stays open.
Towing
When the vehicle is towed, the ATF pump is not
driven, as a result of which the rotating parts are
not lubricated.
To avoid serious gearbox damage, the following
conditions must be met:
The selector lever must be in position "N".
A max. towing speed of 50 kph must not be
exceeded.
A max. towing distance of 50 km must not be
exceeded.
The engine cannot be jump-started by towing
(e.g. if the battery is flat).
If the battery is disconnected or flat, the selector
lever’s emergency release device must be operated
in order to move the selector lever from "P" to "N"
(see page 64).
Reference
For further information, refer to SSP 284
(page 34 onwards).
367_064