I had given my Mercedes Benz ML250D car for washing at 3M care in Santhome branch in Chennai. After the service I found one of the flash lights damaged and it costs over 30, 000.00 I have complained this to the centre and also lodged a formal email to the main customer care centre as well. No proper response received yet. This shows how bad they manage and value important customers. Can we all afford to trust these people and send our expensive cars and get them spoiled and that too after paying them. Too bad, Please be careful with them.