Land Rover Range Rover: Door latch assembly failure — doors that will not lock or will not stay shut

The door latch on an L405 is not a simple catch. It is a sealed assembly containing the locking mechanism, the soft-close motor and the position switches, and it fails often enough that it is one of the defining faults of this vehicle. Moisture works its way in and the mechanism binds. Symptoms range from irritating to serious: a door that will not lock even though the car says it has, a door that opens despite central locking being set, soft-close that stops working, or a door that will not latch shut at all. Land Rover recalled 2013 to 2016 cars for doors failing to latch. Because the parts are now one sealed unit, a failure means replacing the whole assembly rather than fixing a component, and with four doors on the car it is common to end up doing more than one.

• A door that will not lock, or unlocks itself after locking
• Soft-close not pulling the door in on one or more doors
• Door ajar warning on the dash with all doors visibly shut
• Door needing a hard slam to catch, or not latching at all
• Interior light staying on, or the alarm failing to set

Test every door individually rather than assuming they behave the same, because these fail one at a time. Open and close each of the four doors in turn and confirm each catches on a normal, gentle push rather than needing a slam. If the car has soft-close, check that each door pulls itself in — a door that stays proud on one corner is the give-away. Lock the car with the key fob, then walk round and try every handle including the tailgate; nothing should open. Unlock and lock again from inside using the central locking, and watch for a door that does not follow. With the ignition on, check the dash for a door ajar warning while every door is shut. Check the interior light goes out and stays out with the doors closed. Ask the seller whether any latch has been replaced and whether the alarm ever fails to set — an alarm that will not arm is usually a latch reporting a door as open. If a workshop inspection is possible: ask for the door module fault memory to be read, which names the offending door directly.

$700 to $2,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Have any of the door latches been replaced, and which ones?”
• “Does the alarm always set, and does every door lock every time?”
• “Does soft-close work on all four doors?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.