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Technical Service Bulletin # Mercedes Benz Truck GL 450 S-80_57-56 Date: 100908

Technical Service Bulletin # Mercedes Benz Truck GL 450 S-80_57-56 Date: 100908

Audio System - Radio Interruption Information

Date: September 8, 2010

Order No.: S-B-80.57/56

Group: 80

SUBJECT:

2011 Mercedes Benz Truck GL 450 (164.871) V8-4.6L (273.923) Page 134

MY-All, Models 129, 163, 164, 170, 171, 199, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 216, 219, 220, 221, 230, 251, 463

Interruptions in Radio-Operated Vehicle Systems

In the frequency range of the transmitter key or KEYLESS-GO, many other radio-operated Systems can also be transmitting and with a stronger

signal. Systems such as, radio frequency headphones, radio thermometer, garage door opener, alarm systems, etc. can prevent or interrupt unlocking,

locking, and engine starting via a KEYLESS-GO.

Fortunately, in parallel with radio remote control, most MB vehicles also have infrared remote control, so that even with radio disturbance, the

transmitter key will unlock and lock at short range. Exceptions are the 163 and the 170 as they do not have additional infrared remote control, but the

mechanical key will always work.

Advise customers that taking a vehicle key is always recommended as it is conceivable that a criminal might use a radio interferer to block the

locking of a vehicle. Locking is ensured by 3-signal flashing.