LI08.10-P-076885

Noises from front electric drivetrain at 60 mph - 75 mph
Topic number
LI08.10-P-076885
Version
1
Function group
08.10 - Electrical motor
Date
9/5/23
Validity
Model 294 with code M005 (VEHICLES WITH 4MATIC/ALL-WHEEL DRIVE)
Model 295 with code M005 (VEHICLES WITH 4MATIC/ALL-WHEEL DRIVE)
Model 296 with code M005 (VEHICLES WITH 4MATIC/ALL-WHEEL DRIVE)
Model 297 with code M005 (VEHICLES WITH 4MATIC/ALL-WHEEL DRIVE)
Reason for change
Complaint
High frequency noise/high frequency whistling at speeds between 60 mph - 75 mph
Attachments
File
Description
noise.MP4
Example noise
Cause
Noises of 26th engine order from the transmission gearing
Remedy
Perform software update for control unit "N127 - drivetrain (PTCU)".
If the noises continue even after a successful software update, please do not exchange any parts.
The cause is currently being investigated.
Symptoms
Power generation > Engine management > Electric drive > Electric machine > Noise
Power transmission > Noises > Howling/whistling
Operation numbers/damage codes
05.09.2023 21:08:58
© Copyright Mercedes-Benz AG
MARCGU
Page 1 / 2
Op. no.
Operation text
05.09.2023 21:08:58
© Copyright Mercedes-Benz AG
Time
MARCGU
Damage
code
Note
Page 2 / 2