Emergency default mode, function - GF27.60-P-3012N

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

In order to ensure a safe driving state and to prevent damage to the automatic transmission, the VGS electric control unit (Y3/8) switches to the limp-home mode if critical faults occur. In the event of a hardware fault all the control solenoid valves are switched off. They are then de-energized. In limp-home mode, the transmission shifts to 6th gear. After engaging selector lever position "P", 2nd gear is selected in selector lever position "D". Reverse gear R from the convenience program is available. As a result the vehicle can be brought to the nearest Mercedes-Benz service outlet.

If hydraulic faults occur, the transmission does not shift out of the gear currently engaged. If the fault is in the control solenoid valves, the gear affected is locked out and cannot be engaged anymore.

Up to 16 faults are stored simultaneously in the fault memory. These can be read out using STAR DIAGNOSIS.

	VGS control unit, location/task		GF27.19-P-4013N
	Control solenoid valve, location/task/design/function		GF27.19-P-5111N