BMW Battery Repair Service
BMW 48V Mild Hybrid Battery Repair
Check Your OEM Part Number
Common OEM numbers for this repair service
- 61 21 5 B50 C38
- 61 21 5 A83 028
- 61 21 5 A6E C78
- 61 21 5 A58 884
Don't see your OEM number? Send us a photo of your battery label or VIN — we'll confirm compatibility. Contact us
Professional mail-in repair for BMW 48V mild-hybrid lithium batteries. Send your OEM part number or VIN and we’ll confirm compatibility before shipping.
Repair service only — ship your original battery to us for diagnosis, repair, testing, and return.
Choose Your BMW Battery System
- Nationwide USA mail-in repair
- 2–3 business day turnaround
- OEM diagnostics
- Tested before return
Questions before ordering?
Contact UsService check
Is this the right repair service?
This is a BMW 48V mild-hybrid battery repair service — not a full EV or PHEV traction battery repair.
This service covers
- BMW 48V mild-hybrid (MHEV) lithium battery repair
- OEM 48V Li-ion MHEV modules on BMW G-Series vehicles
- 48V drivetrain, start/stop, charging and communication faults
This service does not cover
- Full EV traction battery repair
- Full PHEV high-voltage traction battery packs
- Non-BMW battery systems
Service details
Compatibility
BMW 48V Compatible Models
This service covers the BMW 48V mild-hybrid battery systems below.
Compatible Models
- BMW X5 G05 (2018–2025)
- BMW X6 G06 (2019–2025)
- BMW X7 G07 (2018–2025)
- BMW X3 G01 / X4 G02 (2018–2025)
- BMW 5 Series G30 / G31 (2017–2023)
- BMW 6 Series GT G32 (2017–present)
Common symptoms & compatibility check
Your BMW battery may be repairable if you are seeing issues like these.
- 48V MHEV module faults
- Drivetrain warnings
- Start/stop failure
- Charging and communication faults
- Voltage imbalance
- Battery warning messages
Send us your OEM part number, VIN, or a photo of the battery label and we'll confirm compatibility before shipping.
Process
How Our BMW 48V Repair Works
Ship your original battery
Securely send your original BMW 48V module to our repair center.
Diagnose, repair, and test
Full OEM diagnostics, module-level repair, and testing before it leaves us.
Return your original battery
Your repaired battery ships back to you nationwide.
Most repairs are completed within 2–3 business days after delivery.
Contact
Confirm Battery Compatibility
Send us your OEM part number, VIN, or battery label photo and we’ll confirm compatibility before shipping.
Support
Shipping, Repair Process & FAQ
How do I ship my battery?
Ship your original BMW 48V mild-hybrid module to our repair center. Once received, it is inspected, repaired if eligible, and returned to you.
How long does the repair take?
Most repairs are completed within 2–3 business days after delivery.
How do I confirm my battery is compatible?
Confirm compatibility by OEM part number or VIN before shipping. Compare your part number against the supported OEM numbers shown in the hero above.
What if my battery cannot be repaired?
If a battery cannot be restored due to severe internal damage or corrosion, a refund is issued minus return shipping.
Are batteries tested after repair?
Yes. Each repaired module is tested before being returned to ensure proper functionality.
Is this the right service for a full EV or PHEV battery?
No. This service covers BMW 48V mild-hybrid modules only — not full EV or PHEV high-voltage traction battery packs.
Next Steps
Need Something Else?
Sell a battery or read the full BMW lithium battery repair guide before ordering.
Sell Your Battery
Have a Li-ion battery you no longer need? Send us the OEM number and photos for an offer.
Get an OfferBMW Repair Guide
Read our BMW lithium battery repair guide, including symptoms, OEM numbers, and repair options.
Read Guide