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Home >> Mercedes Benz >> 2009 >> C350 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft/Central Locking System - C63/C350 (204) - 2 Of 2 >> Basic Knowledge >> Transmitter key, component description - GF80.57-P-6010CW

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

MODEL 204.0/2 up to Model Year 8 

Shown on model 204.0 With code (763) Radio remote control with panic switch 

Fig 1: Identifying Transmitter Key Buttons
G07531897Courtesy 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 2 batteries (button cells). Moreover, the following controls and control indicators are integrated:

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

Task 

The transmitter key transmits radio and infrared signals for realizing the following system functions:

Switching over CL unlocking function from "Selective" to "Global" or vice versa:

IMPORTANT With "selective" unlocking, the driver door and the fuel filler flap are unlocked by pressing once.

With "global" unlocking, the vehicle is unlocked completely by pressing once.

Battery check:

When the lock transmit button, the unlock transmit button or the remote door unlock transmit button are actuated, the battery indicator lamp comes on momentarily indicating the proper state of the batteries in the transmitter key.