Auxiliary Battery Voltage Converter Module for Mercedes-Benz - 2059053414

Part Number: A2059053414

Compatibility:
This OEM-quality voltage converter module is designed to replace the original factory component in various Mercedes-Benz models, including:

C-Class (W205) (2014-2018):
Diesel: C220D, C250D
Petrol: C180, C200, C250, C300, C400
AMG: C43 AMG, C63 AMG

E-Class (W213) (2017-2018):
Diesel: E220D, E300D, E400D, E350D
Petrol: E200, E220, E250, E400, E450
AMG: E63 AMG

GLC-Class (W253) (2015-2018):
Diesel: GLC220D, GLC250D, GLC350D
Petrol: GLC200, GLC250, GLC300
AMG: GLC43 AMG, GLC63 AMG

CLS-Class (W257):
Diesel: CLS220D, CLS300D, CLS350D, CLS400D
Petrol: CLS200, CLS300, CLS350, CLS450
AMG: CLS53 AMG

S-Class (W222) (2013-2018):
Petrol: S450, S500
AMG: S63 AMG

Features and Functions:
OEM Replacement: This voltage converter module meets Mercedes-Benz specifications and ensures reliable performance.
Eco Stop/Start System: Supports the Eco Stop/Start function and is recharged via the regenerative braking system.
Failure Symptoms: A failing module typically triggers warning messages such as:
"Auxiliary Battery Malfunction"
"Stop Vehicle, Shift to P, Leave Engine Running"

Replacement Details:
Location: The voltage converter module is located in the passenger-side footwell. To access and replace it:
Remove protective panels.
Move the carpet slightly backward.
Access the module beneath a secondary protective layer.
No Coding Required: After replacing the module, no additional coding is needed.

Common Diagnostic Trouble Code (DTC):
Code B21DC01: Indicates a malfunction in the buffer battery of the electronic ignition lock.

Superseded Part Numbers:
The following part numbers are compatible replacements:

Current Part Number: 2059053414
Superseded Part Numbers: A2054400073, A2059052809

What's in the box
1 x Auxiliary Battery