WATER LEVEL SENSOR FOR ALL SAAB 9000 INC      CSE CDE GRIFFIN AERO CS CD MODELS      EASY REPLACE - UNDO THE EXPANSION TANK AND GENTLY PRISE THE SENSOR OUT OF THE UNDERSIDE ... DISCONNECT  PLUG THE NEW ONE IN      7554348 OE REFERENCE            01582 499777  I can be contacted until 10.00pm most evenings and weekends for support or advice