2003 A6 C5 front passenger door lock actuator

[daveyboy1967]

Bit of information for anyone with electrical issues that seem to be most likely down to broken wires in the A pillar loom. The symptoms I had (all on the passenger side) were

No door open displayed on the dashboard

No footwell lights

No puddle lights

No door edge red light

Door lock button not working with central locking

Power windows and speakers were working fine.

Everything was pointing to broken wires in the A pillar loom but after a lot of checking visually and with a multimeter everything seemed to be fine on that front. Spent a few hours searching the internet and found a lot of topics suggesting the problem was with the door closed sensor on the lock actuator. Installed a new one this morning and all the problems are cured, worth a try if anyone's having similar problems and has ruled out any other issues.

By the way, I did see a few guides on repairing the existing lock but it seems like a fair bit of faffing around for something that isn't guaranteed to work. My new actuator came in at £23 delivered from eBay and works perfectly so that seems the best option to me.

[Steve Q]

2 hours ago, daveyboy1967 said:

Bit of information for anyone with electrical issues that seem to be most likely down to broken wires in the A pillar loom. The symptoms I had (all on the passenger side) were

No door open displayed on the dashboard

No footwell lights

No puddle lights

No door edge red light

Door lock button not working with central locking

Power windows and speakers were working fine.

Everything was pointing to broken wires in the A pillar loom but after a lot of checking visually and with a multimeter everything seemed to be fine on that front. Spent a few hours searching the internet and found a lot of topics suggesting the problem was with the door closed sensor on the lock actuator. Installed a new one this morning and all the problems are cured, worth a try if anyone's having similar problems and has ruled out any other issues.

By the way, I did see a few guides on repairing the existing lock but it seems like a fair bit of faffing around for something that isn't guaranteed to work. My new actuator came in at £23 delivered from EBay and works perfectly so that seems the best option to me.

Glad you got sorted 🙂 thanks for the guide 🙂