NOTE: These are currently still under development apologies for any delay.

The wiper motor on the MGF and TF can easily seize up due to water ingress ..this can be prevented by sealing the motor and tie wrapping a water proof plastic bag over it.
If you haven't already done this then the chances are it could be damaged internally.
The early cars had a different (large) wiring connector. These are now NLA. 
The later cars had a smaller plug and there are some Chinese made imports sold for around £75-£90 depending on where you purchase from. These may carry an exchange surcharge .
I have sourced a UK manufactured replacement unit that can be fitted for both models from a UK supplier. The wiring at the motor may look different to the one fitted but they work the same.
The earlier large plug connectors (cars up to 2000) we require the old wiring cutting off the  motor and sending to us for swapping over or we can supply a 5 pin plug set so you can fit a new connector at each end.this is an extra £5 select option to include this.
The later cars pull out the white plastic insert from the plug and release each pin from the plug by using a small screwdriver to release the retaining clip on each pin and insert new pin in the relevant holes.
Make a sketch or photo of the arrangement of the wires before you pull them out so you can get the positions correct when re-fitting.
If you are not confident in doing this then send us just the wiring/connector of your  failed motor and we will swap the connectors over for you.
These will fit both left and right hand drive cars. Check the linkage at this time and upgrade it to the MS redesigned replacement for an additional £36 (plus vat if applicable)
We have a limited number of these so when they have gone you will have to buy the more expensive Chinese manufactured ones!!
Don't forget to send your plug and wiring first!!