I have a reluctant door lock on the passenger side of the 95 e300D. It will work with effort manually. It is cold here now so that may be a factor. Will it help to drip oil down the stem of the manual lock actuator?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.