Transmitter key, component description - GF80.57-P-6010SX

MODEL 221.0 /1, 216.3 up to Model Year 8

Fig 1: Identifying Transmitter Key Buttons

Courtesy of MERCEDES-BENZ USA

Design

An "electronic key" is integrated in the transmitter key. This key includes an FM radio transmitter, an infrared transmitter/receiver unit, a computer chip as well as two batteries (button cells). Moreover, the following controls and control indicators are integrated:

Lock transmit button (1)
Unlock transmit button (2)
Remote trunk opening transmit button (3)
LED battery check (4)
Panic alarm (6) transmitter button (with code (763) Radio remote control with panic switch)

The mechanical key (7) can be unlocked and removed with the unlock slider (5).

Central locking (CL [ZV])

Actuate lock transmit button:

Press once (global locking)
press and hold down while aiming infrared sensor at driver door (B58) (additional convenience closing)

Actuate unlock transmit button:

Pressing once when set to "Selective" (driver door and fuel filler flap are unlocked)
Press once when set to "global" (unlocks all)
Pressing twice when set to "Selective" (unlocks all)
press and hold down while aiming infrared sensor at driver doors (additional convenience opening)

Switchover unlocking from "Selective" to "Global" or vice versa:

Press and hold "Lock" transmit button and "Unlock" transmit button simultaneously for approx. 5 seconds until the "Battery check" LED flashes twice.

Panic alarm

with code (763) Radio remote control with panic switch

Actuate panic alarm transmit button:

Press approx. 2 s (trigger panic alarm)
Press approx. 0.5 s (terminate panic alarm)

When the transmitter key is inserted into the key opening on the EIS control unit (N73), the panic alarm is terminated.

Remote trunk opening (RTO)

Actuate remote trunk opening transmit button:

press approx. 0.5 s (trunk lid opens)

Drive authorization stage 3 (DAS 3)

When the transmitter key is inserted into the EIS control unit, it is supplied with voltage. Data exchange takes place to verify the drive authorization status.

Keyless Go (KG) (with code (889) Keyless Go)

Communication with the vehicle via inductive signals and radio signals. Determine request location in relation to vehicle.

Battery check

When the transmit button (1, 2 or 3) is actuated, the battery control LED comes on momentarily and indicates thereby the proper state of the batteries in the transmitter key.