Oxygen Sensor Mileage Interval Switch - Reset
85bmw01GROUP 61 Chassis - Electrical
Bulletin Number 61 01 85 (2038) Page 1 of 1
Montvale, NJ April 1985 Technical Dept.
SUBJECT: Mileage Interval Switch for Oxygen Sensor
MODEL: 528e
As of production date February 1985, a mileage interval switch with the capability of being manually reset has been installed. Consequently it will no longer be necessary to remove the OXYGEN SENSOR warning light bulb in the Check Control Unit at the 30,000 miles OXYGEN SENSOR SERVICE.
This maintenance-free unit is located behind the dash in the area of the pedal assembly. It is accessible by removing the underdash trim panel.
Reset the mileage interval switch as follows:
Press button (arrow) with a thin-bladed screwdriver or similar tool.
This resets the counter to zero and opens the current supply to the OXYGEN SENSOR warning light bulb.
Note: OXYGEN SENSOR warning light bulb will come ON every 30,000 miles.