locks are jumping

[vitz]

my 2004 Class is having a major lock issue that is cars locks jump up n down non stop when i try to lock the car so i have to spend good 2 min befor i can actually lock it sometimes it takes even longer what could it be

[Andreas]

I hate this electicry.

There is no one shot solution for this. Open FOB and clean it and fit for any loose connection.

If still same, open central lock device and fit it again. If not u need new device.