2010 Mercedes Benz Truck GL 350 BLUETEC (164.825) V6-3.0L DSL Turbo (642.820) ABS/TCS - 'ESP Malfunction-Service Required'
ON
Vehicle: All Technical Service Bulletins
Audio System - Various Sound Amplifier Concerns
Sound amplifier: No sound after engine start, sound amplifier not in quick test, interference noise
Topic number LI82.62-P-041478
Version 1
Design group 82.62 Loudspeakers, amplifiers, antennas
Date 09-21-2012
Validity Model series 164, 251 with code 810 and code 805, 806, 807 or 808 (NTG2)
Reason for change
Complaint:
^ No sound after engine start
^ Sound amplifier (A2/13) not in quick test
^ Interference noise from speakers
Cause:
1. Water ingress in sound amplifier (A2/13)
^ due to unplugged condensation drain hoses
^ incorrectly cemented windshield
^ leaking seal between crossmember under windshield and interior compartment
2. The software in the flash memory was overwritten
Remedy:
Remedy 1. Check sound amplifier (A2/13) for traces of water. Check condensation drain hoses for correct seating. Perform rain test and check
interior compartment for leaks. Eliminate leaks and replace defective sound amplifier (A2/13) in accordance with parts note.
Remedy 2. In some cases the sound amplifier (A2/13) can be made to respond via XENTRY again by means of a voltage reset. In this case, upload
the latest available software with XENTRY and wait for the bus to become idle. If the sound amplifier (A2/13) does not respond to XENTRY and if
it still does not appear in the quick test, the sound amplifier (A2/13) must be replaced. After replacing the sound amplifier (A2/13), it must be
flashed to software release 43/06 or higher.
Symptoms
Parts
DIAGNOSIS AND REPAIR, MAINTENANCE, PARTS AND LABOR, SHOP OPERATIONS, TECHNICIAN'S REFERENCE, DIAGNOSTIC TROUBLE CODES(dtc), RELAYS AND MODULES, SENSORS AND SWITCHES,ENGINE, COOLING AND EXHAUST, POWERTRAIN MANAGEMENT, TRANSMISSION AND DRIVETRAIN, BRAKES AND TRACTION CONTROL, STARTING AND CHARGING, POWER AND GROUND DISTRIBUTION, STEERING AND SUSPENSION, HEATING AND AIR CONDITIONING, RESTRAINTS AND SAFETY SYSTEMS, ACCESSORIES AND OPTIONAL EQUIPMENT, BODY AND FRAME,CRUSIS CONTROL.