I agree with PaulC. The 126 I had only pushed a/c and fresh air to the back seat through the console. The heated air came from the underseat ducts.

__________________
1997 S600 Coupe
2002 Lexus SC430
2004 Lexus RX330 (wife's car)
Owned:
1993 500 SEL
1994 E320 (wife's car)
1987 300 SDL
1978 450 SEL
1980 300 TD (wife's car)
1969 280 SL