Brake fluid change for ESP

My maintenance manual for models starting model year
1998 shows a conventional procedure for replacing brake
fluid on most models, but for model 210 (my '98 E430)
indicates; "210 except CODE (472a) electronic stability
program (ESP)"

Nowhere do I find any mention of a procedure for a 210
_with_ ESP. Anybody who can tell me what sort of special
treatment (if any) is called for? Thanks.

Martin