And here in Melaque (Villa Obregon actually) there is a store called PC Dr.
Whilst not an authorised Apple tech, many people have told be he does fantastic work. My mum's neighbour says he did a strip down and repair on her MacBook Pro with labour only being $900 pesos.
He is located opposite my office on Benito Juarez, almost corner with Reforma. Reforma is the road that comes in directly from the highway 200 where the Pemex is located.
Word of warning though whilst his stated hours are from 9am - 2pm, I rarely see them arrive before 9.30am.
Phone number in case you can't read it on the photo is 315 355 7677