<E28> Heating problem

[owen@xxxxxxx]

Hi.  My '88 528e has been given a new water pump/thermostat/coolant 
change makeover.   However, I am getting insufficient heating inside 
the car, except at low speeds and idling.  The coolant system seems 
to be "working ok", except I am surprised that the return hose from 
the radiator and radiator itself  do not get hot (NY 30 deg weather) 
whatever type of driving I engage in.  The temp. gauge needle slowly 
climbs to near the 12 o'clock position.

Is the poor interior heating likely to be a problem with 
unrestricted air intake the firewall cover openings (covering them 
with duct tape helps a lot) -- vent lever , which feels "loose", all 
the way to the left of course?   Since the Bently service manual does 
not cover the topic of air blower levers well, I would appreciate it 
if someone who had dealt with the problem would kindly  send me 
some tips before I get started.  If I appear to be off the mark with 
my conclusions, I would appreciate being set right.  The 
heater core hoses are hot to the touch.  Thanks.

Owen

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