General

General





AW 50-42
The ECONOMY and SPORT buttons have been removed and reactive response has been introduced, that is that the transmission control module (TCM) senses the driver's behavior, how rapidly he depresses the accelerator pedal (AP), and adjusts the sensitivity of gear changing. Sports driving gives aggressive gearshifting, calm driving gives calm gearshifting This information is not stored in the Transmission Control Module (TCM).
However the adaptation which the transmission control module (TCM) has "learned" is stored, the Transmission control module senses how the transmission behaves and if there is any wear in the internal components. Using this information optimum gearshifting is obtained on every occasion. This reactive response is continuous while driving.
The adaptation is stored in the transmission control module (TCM) and must be reset at oil and transmission replacement.
In cars with an accelerator pedal module there is a "physical" kickdown feeling built in the form of a "marker" which the driver feels when the pedal is depressed 80% of full pedal travel. There is no longer a separate kick down switch in the sensor, as was the case in earlier versions. The kickdown function is controlled by a function in the software. The signal is sent on by the engine control module (ECM), which calculates the position of the pedal which then communicated via the network to the transmission control module (TCM).

Other
- 4 valve gasoline engines, transmission control module (TCM) with 120 pin connectors.
- There is a special function which makes the car shift gear later in the first 30 seconds of driving. This is only done to heat the three-way catalytic converter (TWC) faster. (This function has existed previously).
- Improved gearshifting in 1st to 2nd gears at low revs through a modification of clutch driven plate thickness in B2.
- New gear-shift position sensor with 7 positions, but only 6 positions are used, P-R-N-D-3-L.
- The routing for the dip stick pipe is modified.

Drive shaft
New outer constant velocity joint, drive shaft mounting to the hub, screw replaced by a nut
- The inner bellow on turbocharged cars is made of rubber.
- The stop plate which held the drive shaft bearings in place has been removed. When removing a special tool is used, this is so that the bearings will remain in place.

Gear selector assembly, AW 50-42
Because of the modification to the front of the gear selector assembly there is a new locking device for the cable.
The sport and economy buttons are withdrawn on all variants except the B5252S and D5252T. Other engine variants have the reactive response system.

Gear selector assembly, M56
New gear selector lever knob with snap lock, no tools are required to remove or loosen it.

Flywheel
Dual mass flywheels are introduced on all naturally aspirated engines.