355 Hopping Door Lock Central locking

Will the door pins stay down if you use the keys to lock the door? Is the key locking process smooth?

 

It sounds like there’s a faulty internal microswitch in one of the lock actuators. If you can get the pins to go fully down even momentarily, it means that the latch mechanicals are probably ok, but the Door ECU needs to see both internal microswitches in the lock actuators indicating the actuators are extended (locked) before it will allow both doors to lock

The OEM actuators are relatively cheap, but you’ll probably need to remove the internal door card at minimum to get access to the latch to replace the actuator. Since the driver’s side is the door most used, that lock actuator is probably faulty.

When ordering the lock actuator, buy some door card plastic clips. You may also need some plastic trim removal tools to protect the door card leather.

Don’t buy aftermarket lock actuators. Despite physically looking like the Ferrari ones, the plunger travel may be different and the micro switch trigger point may be different.

 

Lock actuators are 35 quid (plus VAT and P&P) from Superformance P.N 62832300

https://www.superformance.co.uk/355/electrical.html

Yellow door trim clips (19 pence) P.N 14188181

https://www.superformance.co.uk/355/fittings.html