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48V Mild-Hybrid · Crash Data Reset · South Wales

Hybrid Battery Module Repair & Crash Data Reset

Hybrid battery locked after a collision, or won’t wake up after the car’s been standing? Many 48V mild-hybrid battery modules store crash or fault data and lock themselves as a safety precaution — even when the battery itself is perfectly fine. We reset and repair these modules, restoring your vehicle to full working order without the cost of a new battery from the dealer.

We cover a wide range of mild-hybrid brands including Audi, Porsche, Mercedes-Benz and Volvo, among others — get in touch with your make and model and we’ll confirm we can help.

⚠ Common Symptoms We See
CRASH
Battery Locked After a CollisionModule stores crash event data and locks the battery, even after bodywork repairs are complete.
FLAT
Drained After StandingBattery has gone flat after the car has sat unused for an extended period.
NO START
Car Won’t Start / Limp HomeVehicle refuses to start normally, or drops into limp home mode on start-up.
WARNING
Dashboard Battery WarningYellow or red hybrid/battery warning light showing on the instrument cluster.
MERCEDES
Fault Codes e.g. B183371, B183319Common on Mercedes 48V systems (M256/M264 engines) — actuator lock and battery malfunction codes.

Why Standard Diagnostics Can't Clear It

Much like an airbag SRS module, a 48V hybrid battery module can store a crash or fault event in a protected memory area — a deliberate safety feature that stops the battery operating again until it’s properly inspected and reset.

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Protected Module Memory

Crash and fault data is written to a protected area of the battery module. Standard OBD tools — and many professional-grade scanners — cannot access or clear this data. Specialist equipment is required.

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The Battery Is Usually Fine

In most crash-lock and flat-battery cases, the cells themselves are undamaged. It’s the software lockout — not the hardware — that’s stopping the battery from working.

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Dealers Quote for a New Battery

Without the specialist equipment to reset the module, dealers frequently quote for a full replacement battery — which can run into thousands of pounds when a reset would have solved it.

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We Reset the Original Module

We access the module, clear the crash or fault data, recharge and verify the battery is working correctly — restoring your original battery at a fraction of replacement cost.

Hybrid Battery Repair Service

This service covers 48V mild-hybrid assist batteries — not full high-voltage EV or hybrid traction battery packs. If you’re not sure which type your vehicle has, just get in touch and we’ll advise.

πŸ›‘Crash Data Reset

Removal of crash-lock data from the battery module after a collision, restoring it to full working order once bodywork repairs are complete.

πŸ”ŒFlat / Drained Battery Recovery

Recovery and recharge of hybrid batteries that have drained after the vehicle has been standing unused for a long period.

πŸ’»Fault Code Diagnosis & Clear

Full diagnostic scan of the hybrid battery system, identifying and clearing fault codes causing warning lights, no-start or limp home mode.

πŸ”§Multi-Brand Coverage

We work across a range of manufacturers’ 48V mild-hybrid systems. Not sure if yours is covered? Contact us with your make, model and year.

Multi-Brand Hybrid Battery Support

We work on 48V mild-hybrid battery systems across a range of manufacturers. If your vehicle isn’t listed, contact us with your make, model and year and we’ll confirm.

Audi
Porsche
Mercedes-Benz
Volvo
BMW
Volkswagen
Land Rover
Range Rover

ⓘ Not listed? Call or WhatsApp us with your make, model and year — we cover more brands than shown above.

Our Repair Process

Get in touch with your vehicle details and symptoms, and we’ll confirm the best way to get your hybrid battery working again.

Contact Us

Call, WhatsApp or use the form below. Tell us your vehicle make, model and year, and what’s happening — crash, flat battery, or warning light.

Diagnosis

We connect to the battery module to identify whether it’s a crash-lock, a fault code, or a drained battery needing recovery.

Reset & Recharge

Using specialist equipment, we clear the crash or fault data and recharge the battery where needed, within its safe operating parameters.

Test & Confirm

We verify the battery and hybrid system are working correctly before handing your vehicle back, warning-light free.

Hybrid Battery Questions

Like an airbag SRS module, many 48V hybrid battery modules store crash event data and lock themselves as a safety precaution. The battery hardware is usually fine — the module just needs its crash data professionally reset.

No — standard OBD scanners typically cannot access the protected memory area where 48V hybrid battery crash data is stored. Specialist equipment is needed to read and reset the module correctly.

In most crash-lock and flat-battery cases, no. The battery module itself is usually undamaged — only the software lockout stops it working. A specialist reset restores it at a fraction of the cost of a new battery, which can run into thousands at a main dealer.

We cover a wide range of 48V mild-hybrid systems including Audi, Porsche, Mercedes-Benz and Volvo, among others. Contact us with your make, model and year and we’ll confirm we can help.

No — this service covers 48V mild-hybrid assist batteries, not full high-voltage EV or hybrid traction battery packs. If you’re unsure which type your vehicle has, get in touch and we’ll advise.

Most resets are completed within a day or two once we have access to the vehicle or module, depending on the fault. We’ll give you a clear timescale when you get in touch.

Get Your Hybrid Battery Working

Fill in the form with your vehicle details and symptoms and we’ll come back to you with a quote and availability.

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WhatsApp07424 242 414 — send photos of any warning lights
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WorkshopUnit 1F Cwmgors Industrial Estate, Ammanford, SA18 1PA

Book a Hybrid Battery Repair

We’ll confirm within 24 hours with a quote.

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