Tesla Model S BMB Repair
Are you looking for a Tesla Model S BCB repair?
Don’t ignore it – book a diagnostic today and get expert help.
The following fault code(s) may be present
BMS W173 Brick 6 sense
BMS W163 Brick SOC imbalance
BMS W166 SW AH to be charged imbalanced
BMS U025 Brick voltage limit
BMS U018 Max charge limited
BMW W090 SW GTW Message latency
Affected Vehicles
Tesla Model S
- All years and variants
Common Failure Symptoms
- Vehicle shows “Service Required” or similar battery fault message on the dashboard
- The car refuses to charge correctly or accepts significantly less than expected
- Fault scan reveals multiple BMS codes related to brick or module voltage imbalance as listed above
- Live data analysis shows a battery imbalance (for example: module 6 showing bricks at 3.353 V, 3.213 V, 3.488 V) indicating internal battery control board fault
Are you looking for a Tesla Model S BCB repair?
Don’t ignore it – book a diagnostic today and get expert help.
Tesla Model S Diagnostic Report
In this case, a Tesla Model S arrived with the key complaint of battery issues, including refusal to charge and inability to start. Our diagnostics began with a full fault-code scan revealing codes such as W173, W163, W166, U025, U018 and W090. Live data revealed that module 6 in the high-voltage battery pack had significant brick-voltage spread (one brick at 3.213 V versus others at 3.353 V and 3.488 V) which indicated instability. We removed the high-voltage battery pack and discovered a corroded Battery Control Board (BMB) which was the root cause of the fault.
Tesla Model S Repairs
- Removing the high-voltage battery pack from the vehicle
- Replacing the damaged Battery Control Board (BCB) with a verified working unit
- Re-sealing the battery pack and performing pressure and insulation tests to ensure safety and integrity
- Reinstalling the battery pack, initiating charge, and performing a full road test to confirm functionality
Resolution
Need Help?
Are you an independent garage, dealership, warranty, fleet or insurance business?
Specialist Support for EV & Hybrid Repairs
We partner directly with independent garages, dealerships, warranty and fleet providers, and insurance companies across the UK to resolve complex EV and hybrid vehicle issues.
If your customer’s vehicle is displaying battery or electrical faults, we offer advanced diagnostics and expert repair solutions that go far beyond simple parts replacement.
Our battery and component repair service includes:
- Nationwide collection and delivery
- Rapid turnaround times
- Comprehensive technical support
Let us help you keep your customers on the road, while enhancing the value and reputation of your services.
Click below to find out how we can support you.
Is the vehicle owned by you or your business?
Have you been advised the battery or component needs replacing on your vehicle?
Before committing to a costly full replacement, talk to us. At LKQ Electriq, we specialise in inspecting, diagnosing and repairing complex battery and component faults (issues that many main dealers won’t touch).
Our expert repair service can restore your Range Rover’s hybrid battery at a fraction of the cost of replacement. We offer:
- Nationwide collection and delivery
- Transparent, honest assessments
- Specialist repairs backed by technical expertise
We’ve helped customers across the country save thousands. Book a diagnostic today and discover how we can help you get back on the road, without breaking the bank.
Click below to find out how we can support you.
Do Cedar Electric repairs have a warranty?
High Voltage System Repairs
Repairs involving high voltage systems typically include a 12-month, unlimited mileage warranty, offering you complete peace of mind.*
Lifetime Guarantee
All work carried out at Cedar Garage is backed by our lifetime workmanship guarantee.
*Terms and conditions apply. Please consult a Service Advisor to confirm the specific warranty details for your vehicle prior to booking.
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