Automatic Folding Wing Mirror & Door Handle Touch Lock Faults

[Snak3zZ]

Hi all,

Always found these forums very helpful. Just had my Citroen C5 Aircross 2019 have its 5 year service, all is well. I asked the Citroen Dealer if they could check a couple of bits and they were pretty unhelpful unfortunately.

1st Issue - Automatic Folding Wing Mirror:
Passenger side wing mirror when locking, will sometimes not close in. Is there a good thing to use like WD40 to perhaps help if its getting stuck, or is this more serious? It tends to happen when its colder/wetter weather. When sunny/dry its generally fine.

2nd Issue - Door Handle Touch Lock:
My doors have a unlock sensor on the handle, these work fine. There is a thumb sensor on the front of the handle which also locks. This is a very useful feature. It works fine on the drivers side, but passenger side it does not lock with the thumb sensor. Does anyone have any suggestions on how I may be able to fix this? I am happy to try and take apart if anyone has instructions.

Many thanks in advance if anyone can help me with either issue.

Kind regards,

Sam

[routemaster1]

If you want to lubricate the mirror, WD40 isn't the best. You need some PTFE lubricant spray.

[Beanee3]

Mirror.
WD40 is as the two letters suggest a WATER DISPERSANT. It was developed for the US space program in the 60s.
It works but as it ages it produces a gum like substance as it attracts dust etc. Do not use.
A silicone spray will drive out the moisture and lubricate the surfaces.

Door lock it would suggest a possible sensor problem in the handle or a wire problem

[Snak3zZ]

Thanks @routemaster1 & @Beanee3, I will get some PTFE Lubricant and see if that helps.

Does anyone have any documentation or guidance on how to check the wires/sensor for the door lock on the passenger side? I am quite handy, but I don't want to go in completely blind if anyone has suggestions.

[Juan Sheet]

There's nothing to check apart from the door aperture wiring. Check here for breaks, but internal to the door there's nothing you can do - it will be either the handle which contains the sensor or the Hands Free ECU if not a wiring issue.

Just make sure you have cleaned the door handle carefully, both behind the handle and the front - but don't use any chemicals - just mild car shampoo and avoid using pressure washers too close or aimed directly at the door handles ....