Maybe related, maybe not.
On my 129, I had a fuse on the OVP blow, causing the brake idiot light and ABS come on.

Come to think of it, I don't even know if a 210 has an OVP.

Might be something to look at.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport