Finally got a chance to do this, life gets in the way you know.

Anyway, drove home with the ccu set to display my voltage, here are the results:

at highway speed min. load 13.1-13.3 volts
highway speed with high beams and fan on high 13.0 volts
stopped at light with high beams and fan on high 12.2-12.7 volts occasionally dipped below 12

Don't know what this means, hope someone can tell me.

__________________

Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K