Oil Sensor and Bently on Fiche Query

[Antilles Engineering <antilles@madriver.com>]

Dear Fellow Audi-phreaks,

1990 200tqs has a sensor that occasionally illuminates a magic oil lamp
signal formerly belonging to Aladin.  PITA!  Oil pres. and temp just fine
(1.3 bar at idle on a 100k plus odometer.)  Intermittant, normally either at
staft up or after hitting pothole. 

Just where is the sensor, and what might be the part number and best place
to buy?

I will, in the future, do my homework.  Need a Bentley manual or fiche for
the above-mentioned "Pristine Beauty."  Any sellers of either/or on the list.

Incidentally, have Dunlop D60 A2s from Tire Rack and even tho CR gave them
the kiss of death with their glowing report, for once, they got it right.
Tires are firm, good sidewalls, all weathers.  Can't beat the
price/performance ratio for fairly demanding back road (VT)
gotta-git-there-now driving.  Good in snow  as well.

Sooner,

doug