I bought my S70 about a year ago and have babied it since. When I first got it, the passenger door wouldn't lock, so I disabled the door handle on the outside to temp lock it. Now obviously the actuator is fried.
However, on the rest of the car, the locks get "tired". I can usually unlock the driver with the remote unless it is really hot outside (but always with the key). And SOMETIMES can I unlock the back driver door and rarely the back passenger. When the weather is hot the doors seem less willing to unlock and wont unless I use the key on the driver door and manually pull up the rest. And when I unlock once and lock and try unlocking again, they will get "tired" and not unlock again. Could one actuator failing cause the rest to move sluggish or not at all? The dealer said it could happen. I just want to know if only one needs replacing or if I replace that my issues won't be fixed.