My W164 2005 ML has cannoning rear locks, seems like this is quite common. On ebay someone is selling springs that supposedly can repair the lock for £10 each. I have been quoted about £600 for two new door actuators. Has anyone any experience of this? There are also some door locks for sale on ebay from scrapped MLs which look worth a try. dont want to spend £600 and find it hasnt fixed it anyway. can anyone help?