Judging by your Username I'll assume you have a Mk1 - unscrew the two stainless (Phillips head) screws from either side of the unit to remove & as Gareth stated, the side indicators clip out.
Assuming this is what you intend, you won't be able to spray the inner side of the front units without first splitting the entire bonded assembly via a trip to the oven, directions of which can be found
*HERE* next to
'Convert your front indicators to clears'.