Have you found your code??
If not I can Help

Codes for Becker Radios Can be obtained from Becker.
The UK Becker Agent is
Putnoe Radio Service
Putnoe House
12 Clifton Avenue
Hartlepool
Cleveland
TS26 9QN
01429 869220
PutnoeRadioService@yahoo.co.uk

This can be found in your mercedes handbook or obtained from any mercedes dealer.
I work for Putnoe Radio Service and can offer you a decode service at a discount online price.

You may contact Putnoe Radio Service direct if you prefer and you will receive a code card sent to you with your code printed on.
This will cost £25.

You can however email me and I can do it online for you.
AllanSydney@yahoo.com