I just took my ml430 into the shop to get it checked out and was told that the control module(brake i guess??) needs to be replaced at $1300.00. is there a more affordable option other than the dealer. they said the part alone was $850!! I know that it will need to calibrated once installed, but darn that is a lot of $$. Any help?? The part # is 163-545-58-32 I understand that place in Maryland might have a repaired one??

thanks,
keith