Affected Component: ELECTRICAL SYSTEM

Date Published
AUG 18, 2022
NHTSA TSB #
10219256
TSB Document
Summary
Complaint On AMG variants of MFA2 platform vehicles (A35/45, CLA35/45, GLA35/45, GLB35/45) without code 853 (Midline sound system) or 810 (Premium sound system), the subwoofer does not emit any entertainment sound. Cause The subwoofer only emits entertainment sound on vehicles with code 853 and 810. For vehicles with standard sound, the subwoofer is only used for the engine sound. Remedy If the vehicle has neither code 853 nor code 810, then the subwoofer does not emit any entertainment sound. This is as designed and therefore not a technical issue. Parts replacement is not necessary or justified. See also SI82.62-P-0004A.