Stepper motor Steve

["Tim Annett" <halogenbulb@xxxxxxxxxxx>]

Steve,

I don't know if there is any crossover, but:

Alfa Romeo 164s produced between 1989-93 had similar stepper motor problems. 
  There are two stepper motors in the 164 dash.  One for the temperature 
control and one for directing air to sets of vents.  Bosch made the stepper 
motors with nylon gears that wear out over time and create a clicking sound 
as the gear teeth slip against each other.  The stepper motors don't cost a 
vast amount, but to replace them you have to pull off the entire 164 dash to 
get to them.  $700-$1000 replacement including labor.

Alfa 164 from 1994-1997 don't have this problem.  Luckily I owned a 1994.

SOme clever Alfisti in Australia developed a remedy for the problem by 
machining a set of gears out of metal.  You replace them once, and never 
have to do it again.

Check out his website to get more info and see if maybe the problems are 
related.  You can order sets of gears from him.

www.alfapro.com

Maybe Lucas should have his "Prince of Darkness" title removed and it should 
be given to Bosch!!!!

Tim Annett
Cincinnati
2000  323i
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