Land Rover Defender L663 Rear Diff Lock Engagement Fault
The rear locking differential on Defender L663 can fail to engage or disengage cleanly. The actuator motor or control module requires diagnosis. Repair costs £300-700.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Land Rover Range Rover 2020 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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