When Apple released the 13-inch and 15-inch MacBook Pro with Retina Display, the people of iFixit were the first to get their hands on the laptop's innards and tear it apart to analyze its construction and ease of repair.
For the 15-inch MacBook Pro, the computer got a score of one out of ten (meaning a ten that is very easy to repair), while the 13-inch version got the rating of two out of ten. It is therefore shown that these computers are not easy to repair and because many components are integrated with others, their failure can result in the replacement of a part that is much more expensive than the damaged part.
Right now all MacBook Pros with Retina Display are guaranteed for their short time on the market but once it is finished, perhaps we will one day repair them ourselves. Thanks to the Sonny Dickson leak, the Official Apple repair manuals designed for the MacBook Pro with Retina Display 15-inch (the 2012 and the renewed that came out in 2013).
Since they are internal Apple documents, we don't think they will last long online so the best thing is that you download them as soon as possible on your computer by clicking on the following link. There is also a similar post for iPhone 4 / 4S in case you are possessors of the terminal.
More information - iFixit disassembles 13-inch MacBook Pro with Retina Display | Official iPhone 4 repair manuals are leaked
Source - iClarified
To download - 15-inch MacBook Pro with Retina Display Repair Manual