Kick-down, function - GF27.10-P-2010N

WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2007 Mercedes-Benz C350, 2007 Mercedes-Benz C280, 2007 Mercedes-Benz C230, 2006 Mercedes-Benz C55, and 2006 Mercedes-Benz C350. However, it is still accessible from the selected car via links, so may be relevant.

TRANSMISSION 722.9 in MODEL 171.4, 203, 209, 211, 215, 219, 220, 230

TRANSMISSION 722.9 in MODEL 463.303 /340 /341

Illustrated on model 230

Fig 1: Kick-Down Function Diagram - Transmission 722.9

Kickdown, function

The driver's wish for the maximum vehicle acceleration is met by the kickdown function.

The kick-down function is activated from a pedal travel at the electronic accelerator > approx. 90 %.

Furthermore the driver can detect an increase in pedal effort at the kick-down point. A kick-down simulator (100) is integrated in the electronic accelerator for this purpose.

The "kick-down" signal is recorded by the accelerator pedal sensor (B37), read in by the ME control unit (N3/10) or the CDI control unit (N3/9) and relayed via the class C controller area network bus (engine compartment) (CAN-C) to the fully integrated transmission control (VGS) control unit (Y3/8n4).

On the basis of this information, the fully integrated transmission control (VGS) control unit (Y3/8n4) actuates the control solenoid valves such that upshift and downshift operations take place at increased engine speed to achieve maximum performance.

Kick-down simulator, location/task

GF27.10-P-5108N