A2059053414 Voltage Converter A2059052809 A2054400073 Mercedes W205 AKAS

Description:

The Mercedes W205 Voltage Converter (Part No. A2059053414) is a high-quality replacement auxiliary battery voltage converter designed for multiple Mercedes-Benz models. This direct factory-fit component works with the vehicle's Eco Start-Stop system and gets charged via the regenerative braking system - essential for Mercedes-Benz vehicles equipped with start-stop technology, which is common in South Africa's urban driving conditions. Compatible with C-Class W205/S205/C205, GLC C253/X253, E-Class W213/S213/C238, and S-Class W222/C217 and relevant variants - covering sedan, estate, coupe and convertible body styles, including C180, C220, E220d, GLC 220d, S-Class, and various AMG & hybrid versions. The voltage converter is located in the front passenger footwell. To replace it, simply remove protective covers and slightly reposition the floor carpet - no professional coding is required after installation for easy DIY replacement, perfect for South African DIY enthusiasts and independent repair workshops. A faulty voltage converter usually triggers on-board error messages: Auxiliary Battery Malfunction or Stop vehicle, shift to P, leave engine running. Related DTC fault code: B21DC01 (Buffer battery of electronic ignition lock malfunction, general electrical fault). You can fix the issue by replacing this part directly - no extra dealer diagnosis is needed, saving you time and expensive dealer fees in South Africa. Cross Reference Part Numbers: Latest part number MA2059053414, Main part number A2059053414 / A205905341480, Supersedes old part numbers A2054400073, A2059052809. This component is also named Steuergerät Spannungswandler in German. Note: This part fits more Mercedes models beyond the listed range - please verify your original part number before purchase.

Features:

- Auxiliary Battery Voltage Converter for Eco Start-Stop System; replacement voltage converter (Part No. A2059053414) is a direct factory-fit component for multiple Mercedes-Benz models; works with the vehicle's Eco Start-Stop system and gets charged via the regenerative braking system - essential for Mercedes-Benz vehicles with start-stop technology common in South Africa's urban driving

- Wide Compatibility Across C/E/GLC/S-Class Models; compatible with C-Class W205/S205/C205, GLC C253/X253, E-Class W213/S213/C238, S-Class W222/C217 and relevant variants; covers sedan, estate, coupe and convertible body styles including C180, C220, E220d, GLC 220d, S-Class and various AMG & hybrid versions - fits more Mercedes models beyond the listed range

- Direct Replacement, No Coding Required for Easy DIY Install; voltage converter located in the front passenger footwell; simply remove protective covers and slightly reposition the floor carpet for replacement; no professional coding required after installation - perfect for South African DIY enthusiasts and independent repair workshops, saving expensive dealer labour fees

- Fixes Common Auxiliary Battery Malfunction & B21DC01 Fault Code; faulty voltage converter triggers on-board error messages: Auxiliary Battery Malfunction or Stop vehicle, shift to P, leave engine running; related DTC fault code B21DC01 (Buffer battery of electronic ignition lock malfunction, general electrical fault); replace this part directly to fix the issue - no extra dealer diagnosis needed

- Multiple Cross Reference Part Numbers for Accurate Matching; latest part number MA2059053414, main part number A2059053414 / A205905341480, supersedes old part numbers A2054400073, A2059052809; also named Steuergerät Spannungswandler in German; please verify your original part number before purchase to ensure compatibility

Specifications:

- Product Type; Auxiliary Battery Voltage Converter / Voltage Converter Module / Transformer

- Compatible Brand; Mercedes-Benz

- Main Part Number; A2059053414 / A205905341480

- Latest Part Number; MA2059053414

- Superseded Part Numbers; A2054400073, A2059052809

- German Name; Steuergerät Spannungswandler

- Compatible Models; C-Class W205/S205/C205, GLC C253/X253, E-Class W213/S213/C238, S-Class W222/C217

- Body Styles; Sedan, Estate, Coupe, Convertible

- Specific Engines; C180, C220, E220d, GLC 220d, S-Class, various AMG & hybrid versions

- Function; Works with Eco Start-Stop system, charged via regenerative braking system

- Installation Location; Front passenger footwell

- Installation; Direct replacement, no professional coding required

- Common Fault Code; B21DC01 (Buffer battery of electronic ignition lock malfunction)

- Common Error Messages; Auxiliary Battery Malfunction, Stop vehicle shift to P leave engine running

- Material; Plastic housing

- Weight; Approximately 300g

Important:

- Part Number Verification; please verify your original power supply part number before purchase to ensure compatibility - this part replaces A2059053414, A205905341480, MA2059053414, A2054400073, A2059052809; if your original part number differs, please contact us before ordering

- Compatibility Range; this part fits C-Class W205/S205/C205, GLC C253/X253, E-Class W213/S213/C238, S-Class W222/C217 and relevant variants; it may fit more Mercedes models beyond the listed range - please verify by original part number rather than model alone

- Installation Location; the voltage converter is located in the front passenger footwell; remove protective covers and slightly reposition the floor carpet to access the unit; ensure the ignition is off and the vehicle is properly secured before beginning work

- No Coding Required; no professional coding is required after installation - the vehicle will recognise the new component automatically; however, if the error message persists after replacement, please check for other underlying electrical issues

- Electrical Safety; always disconnect the main battery before working on electrical components to avoid short circuit or electric shock; ensure all connections are secure before reconnecting the battery

- Common Symptoms; if your vehicle displays Auxiliary Battery Malfunction or Stop vehicle, shift to P, leave engine running, or has DTC fault code B21DC01, this voltage converter is likely the cause - replacing it directly can resolve the issue without dealer diagnosis

- Warranty; 6-month limited warranty covers manufacturing defects only; physical damage from improper installation, water damage, electrical surge, use on incompatible vehicles or unauthorised modification voids the warranty

Warranty Policy:

We provide a Half a year warranty service on condition that the product is used correctly.

Human damage and force majeure factors are not covered by our warranty.

Every customer who chooses our products places precious trust in us, for which we are truly grateful. We strive wholeheartedly to deliver thoughtful service to you.

To provide you with a more efficient and exclusive after-sales experience, we have set up an independent one-on-one after-sales email address exclusively for each customer. Upon receiving your order, you will also get a dedicated letter with your personal after-sales contact email printed inside.

You may reach out to us via this email for any inquiries or issues regarding our products. We will serve you sincerely and resolve all your concerns properly.

What's in the box
1 X Voltage conversion module transformer