How to distinguish Mercedes FBS3 BGA key and CG BGA KeylessGo key?
Part 1: CG KeylessGo Key Top Features
1.) CGDI keyless go key support type: BGA-76 version and BGA-78 version
2.) Compatible with following Mercedes types:
W221-S series W216-S series W164-ML series W251-R series W166-ML series W164-GL series
3.) The following models are under test(not support yet):
W212-E series (release soon) W207-C series (release soon) W204-C series (release soon)
4.) Can be reused
Part 2: How to Unlock CG KeylessGo Key?
1). Manual Unlock
a. First press the Trunk button
b. Then press the LOCK button until the key indicator keeps turning on
c. Wait for 1 second, Press the UNLOCK button until the key indicator flashes twice.
d. Key has been erased successfully
2). Unlock via CGDI MB
Insert BGA keylessgo key into CGDI. Read key status, key has been used
Key has been erased/unlocked.
Part 3: BGA KeylessGo vs. NEC KeylessGo Key
BGA KeylessGo: has three separate buttons
CGDI MB reads the BGA key version 78 or 76 (see picture below)
NEC KeylessGo: The three buttons of this key are connected together. This key is mainly used for the old Mercedes Benz models before 2009.
Don’t support 08, 09 version !!!