Mercedes-Benz Hybrid Battery Replacement

Full-Service Mercedes-Benz Hybrid Battery Replacement

At MobileBattery, we offer expert Mercedes-Benz hybrid battery replacement services for both 12V auxiliary batteries and high-voltage hybrid battery systems—all done at your location. Whether you're driving a Mercedes C350e, E300e, GLE 550e, or S560e, our certified mobile technicians are equipped with the tools and knowledge to handle the job safely, efficiently, and professionally.

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No need to visit the dealership or arrange for towing. We bring everything to you—diagnostics, parts, tools, and hybrid expertise.

 

Common Mercedes-Benz Hybrid Models We Service

• Mercedes-Benz C350e Plug-in Hybrid

• Mercedes-Benz E300e / E350e

• Mercedes-Benz S550e / S560e

• Mercedes-Benz GLE 550e

• Mercedes-Benz GLC 350e

• Mercedes-Benz EQ Boost (Mild Hybrid) models

 

Mercedes-Benz hybrid models feature a dual battery system: a 12V auxiliary battery that powers accessories and computers, and a high-voltage lithium-ion battery that supports hybrid drive and EV mode. Both are critical to system operation and prone to wear over time.

Mercedes-Benz Hybrid Battery Replacement Process – Step by Step

Our Mercedes-Benz hybrid battery service is precise and tailored to your vehicle’s advanced systems. Here’s what to expect:

 

Step 1: Book Your MobileBattery Appointment

Choose a time and location that works best for you. We come to your home, office, or roadside with everything we need to complete the job.

 

Step 2: Full Hybrid Diagnostic Scan

We begin by scanning your Mercedes with advanced dealer-grade diagnostics to check:

• High-voltage battery state of charge (SOC) and health (SOH)

• 12V auxiliary battery condition and output

• Any hybrid drive error codes

• Hybrid cooling system performance and airflow

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This lets us confirm battery condition before moving forward.

 

Step 3: Safe Removal of Old Batteries

We follow Mercedes-Benz’s safety protocols to disable and isolate high-voltage components. Our process includes:

• Disconnecting and removing the 12V auxiliary battery

• Isolating high-voltage battery systems using lockout/tagout methods

• Removing cooling ducts, battery shields, and panels

• Extracting and safely handling high-voltage battery modules

• Preparing old batteries for proper disposal and recycling

 

Step 4: Installing New Batteries

We install OEM-spec or Mercedes-Benz-approved replacement batteries:

• Clean and prep all battery compartments

• Install new 12V and high-voltage batteries

• Torque and secure high-voltage connections to spec

• Reinstall cooling fans, ducts, and protective covers

 

Step 5: Programming & Battery Registration

Mercedes-Benz hybrid vehicles require programming and battery adaptation after battery replacement. We handle:

• 12V battery registration with the vehicle’s charging system

• Hybrid battery initialization and ECU synchronization

• Clearing of historical fault codes and battery status logs

• Verification of hybrid communication modules and software resets

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This step ensures your hybrid system recognizes the new battery and runs error-free.

 

Step 6: Final Testing & Safety Verification

To ensure top performance, we run post-installation tests that include:

• Voltage and charging system verification

• Full hybrid system test drive (if permitted)

• Functional checks on EV mode, regenerative braking, and idle-stop

• Final diagnostic scan to confirm all systems are clear

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Only when everything meets our quality standards do we complete the job.