1992 500 SL. Two strange sounds have developed when the engine is first started in the morning. First, when the steering wheel is turned there is sound that resembles a groan.

Second, there is a high pitched whine when the accelerator is lightly pressed. If I back off the accelerator the whine stops.

Both sounds seem to disappear after the engine has warmed up. Does either of these indicate anything to look into?
Thanks,
JR