Installation of electrical and electronic devices (Mercedes-Benz S-Class W140)

Additional electrical or electronic devices that may affect the driver's control of the vehicle must be type approved and marked with the "e" symbol.

Permission is required to install telephones and radio stations in a vehicle!

Installation of telephones and radio stations with the following maximum transmitter power is permitted by the company "Mercedes-Benz", if it is performed by qualified personnel and a non-reflective outdoor antenna is used.

Frequency range (band) HF (less than 50 MHz)	Maximum transmitter power (W) 100
2 m	50
70 cm	35
25 cm	10

Note: Operation of electrical/electronic devices on the vehicle that have not been installed in accordance with the above installation conditions may result in the vehicle's operating permit being invalidated (eU Directive 95/54/EG).

Publication reprinted from this resource: MercedesMan