Land Rover Defender Hybrid Faults – Mobile Repair UK

🚨 Land Rover Defender Hybrid Faults? We Come to You.

Plug-in Hybrid (P400e) or Mild Hybrid (D200, D250, D300, P300, P400)? Seeing warning lights, hybrid malfunction, or charging problems?

📞 Call 07421 186356 – Mobile Hybrid Diagnostic Experts for Land Rover Defender models

⚠️ Defender P400e Plug-in Hybrid Fault Symptoms

The Defender P400e features a high-voltage battery system working alongside a 2.0L petrol engine and electric motor. These systems are prone to HV isolation faults, wiring degradation, and inverter errors.

Typical PHEV issues we fix include:

❌ READY mode not activating
⚠️ Hybrid System Fault / RED triangle warning
🔋 Battery not charging / rapid discharge
🚧 Loss of EV mode or petrol-only operation
🛠️ Fault codes: P0AA6, U3000, HV interlock loop open, inverter failure

⚠️ Defender Mild Hybrid Issues (MHEV)

Defender MHEVs use a 48V electrical system with a Belt-integrated Starter Generator (BiSG) and lithium-ion battery. These systems support engine efficiency and start/stop operations but are sensitive to belt tension, BiSG faults, and voltage supply errors.

Common issues we diagnose:

🔋 48V battery not charging
🚫 Start-stop inoperative
⚠️ Electrical fault in BiSG circuit
💡 Warning lights and stored hybrid system DTCs
📉 Drop in performance or charging problems

💪 Our Mobile Hybrid Repair Services:

✅ Full Hybrid Diagnostics – Using JLR SDD, Pathfinder & Top-tier Scan Tools
✅ HV System Isolation & 48V Testing
✅ On-Site Repairs – HV cables, BiSG, ECUs, relays, sensors
✅ Thermal Imaging & Visual Inspections for heat damage or water ingress
✅ Function Testing & DTC Reset – Ensuring full hybrid functionality restored

⚠️ Risks of Ignoring Defender Hybrid Faults:

💣 Sudden power loss while driving
💸 Expensive battery or inverter replacements
🪫 False battery fault codes
🔥 Risk of electrical arcing or fire
🚫 Vehicle immobilisation due to hybrid safety shutdown

🚗 Land Rover Defender Models Covered:

✅ Defender P400e Plug-in Hybrid
✅ Defender Mild Hybrid (D200, D250, D300, P300, P400)

🧑‍💻 Why Book With Us?

🧠 HV and 48V Certified Technicians
🚐 Mobile Service UK-Wide – No towing required
📊 Live Data Logging & Real-Time Fault Capture
🛠️ Actual Fixes, Not Just Fault Clearing
🧯 Fully HV Safety Compliant Repairs

📞 Call or WhatsApp