Fold left/right outside mirror, function - GF88.79-P-2002SX

MODEL 216.3, 221.0 /1 up to Model Year 8

Fig 1: Fold Left/Right Outside Mirror Function Diagram

Courtesy of MERCEDES-BENZ USA

Manually folding-in/out, function

Function requirements

C. 15R On
No mirror lens adjustment active
Speed signal < 47 km/h for folding in mirror housing

Function

When the outside mirror fold-in/out switch is switched momentarily, the mirror housings can be moved to the garage position (folded in) or driving position (folded out). The corresponding adjustment request is read in by the left door control unit via door LIN.

The left door control unit has the master function during adjustment and relays the signal to the right front door control unit via the passenger compartment CAN-B bus.

The left door control unit actuates the mirror fold-in motor in the left outside mirror and the right door control unit actuates the mirror fold-in motor in the right outside mirror.

If the function requirement c. 15R ON is not present after starting to fold in or out the adjustment is continued until the end position is reached.

Automatically folding in/out, function

Function requirements

Circuit 15C OFF
Function in COMAND controller unit activated
Mirror housing last actuated in folding out direction (when folding in)
Mirror housing previously folded in automatically (when folding out)

Function

When the vehicle is locked with the central locking (CL) from outside with the transmitter key (A8/1), both mirror housings are folded in automatically (garage position). The next time the vehicle is unlocked with the CL and the driver or passenger door are opened, the mirror housings are returned to the previous position

If the mirror housings are still folded in with circuit 15R ON by a previous automatic folding-in procedure, the mirror housings are folded out immediately.

If the mirror housings were manually adjusted to the garage position, the mirror housings are not adjusted via the automatic adjustment The master for this function is the left front door control unit, responsible for adjusting the left mirror housing as well as for transmission of the corresponding signals to the right front door control unit via the interior CAN to actuate the right outside mirror housing.

Abort conditions

Movement to the position is interrupted if:

Active outside mirror lens adjustment
Manual fold-in/out

After interruption, function is continued.

COMAND controller unit, component description	A40/3 Model 221.0/1 without code (498) Japanese version and without code (494) USA version	see GF82.85-P-3136SX
	Model 221.0/2 with code (498) Japanese version	see GF82.85-P-3136SXJ
	Model 221.0/1 with code (494) USA version	see GF82.85-P-3136SXU
Outside mirror, component description	M21/1, M21/2	see GF88.79-P-4003SX
Driver-side front door control unit, component description	N69/1 Type 216.3	see GF72.29-P-6000SC
Driver-side front door control unit, component description	Model 221.0/1	GF72.29-P-6000SX
Passenger-side front door control unit, component description	N69/2 Type 216.3	see GF72.29-P-6010SC
	Model 221.0/1	GF72.29-P-6010SX
Electronic ignition/starter switch control unit (EIS) component description	N73	see GF80.57-P-6000SX
Central gateway control unit, component description	N93	see GF54.21-P-4170SX
Driver power window, outside mirror and trunk lid switch group, component description	S20/1	see GF54.25-P-4230SX