I have a 1993 300E 2.8. When the drivers side door locks or unlocks the others do not. If anyone knows the cure please let me know. Thanks

 

I am pretty sure that your power locks are vacuum related. I would check under the hood for any sort of vacuum leak. If it is not vacuum related, there should be a fuse for it in the fuse panel. Check your owner's manual, or Haynes manual if you have it, and try to locate the fuse/vacuum leak. Hope that helps.

 

There is a Vacum pump under the bak seat, it may not b operating, chek all fuses. or mayb the switch in the drvrs door culld b fulty, try unloking annd locking frm the boot

 

seems cold in new zealand now.