Rear door won't open!
 

It seems that one of the back doors on my 2005 S40 wont open no matter what I do. It just stays locked.
As far as I'm aware the child lock is not on, which is manually set. Not electric.
I think it open once after its recent service and software update but it will not now.
The button is depressed and if I pull the inside handle the button comes up but only while the handle is pulled out. As soon as I release the handle the button depresses.
If I try pulling the button up, or keeping it up with my fingers the outside door handle still won't open the door and the button depresses as soon as I release it from my fingers.
Any ideas please?

Once in the car, I would double-check the "unlock all doors" command by pressing the unlock button on the driver's door. I assume this would NOT unlock your target door, but if its button at least jiggles, you would now know that it wasn't an electrical problem.

I don't know if you could remove the inner door panel while the door was closed. If it was possible, I'd go that route. If not, a body shop might know enough of the latch mechanism to jimmy the door open.

Thanks, I'll try that in the morning and let you know!

Tried the double click on the drivers door but no luck. I don't see the button n moving either. Solanoid?

Unfortunately your door lock unit is very likely to have failed. The only option is to remove the door card from the inside (which is very difficult to do without damaging it on the rear) and replace the lock unit. To make matters worse the lock unit is coded to the car meaning a dealer has to do this. When it happened to me it was about £340 to get it fixed and the door card took a beating.

Iain

More money.....
 

You are right. I had to take it to Volvo this morning and they have to order the part. The technician came out to check whether a dead lock or not.
Got estimate of just under Euro 400. I have no choice as could be dangerous to passengers.
Oh dear about the door card damage!!
Just spent over euro 2k on it!!!

I have just fixed an equivalent fault on a new beetle convertible. I removed the door card/trim and used a dremel cutting wheel to hack away the stainless steel bolts that fix the lock striker plate to the door jamb. Once I had shortened the bolts as far as possible, I tried to use a chisel/punch to undo the remaining thread but in fact they just dropped through into the door shut, allowing the door to open for the fitting of a new lock mechanism.

I am telling you this because I would not want to be paying £80odd/hr for someone else to do to this - not particularly skilled - task. In my VW case I repaired the lock once I had worked out why it had failed - the motor that does the locking had partially failed (dead spot when shaft rotated) and a helper spring had fallen off.

Hello, probably have the same issue. If I'm able to remove the door card, how can I change the lock unit? I've done it on the the other door, but it was at least possible to open (it did not have to be coded after changing). This door is locked closed and I have no idea, how am I supposed to get the lock unit out, when most of the screws are hidden.

Thanks for any help!