BMW X3 Service & Repair Manual: Emissions maintenance reminder

BMW X3 Service & Repair Manual / DTC / Emissions maintenance reminder

NOTE: To determine the appropriate reset procedure, refer to EMISSIONS MAINTENANCE REMINDER RESET INDEX. Only vehicles listed in this index have an Oxygen Sensor Warning Light.

EMISSIONS MAINTENANCE REMINDER RESET INDEX

DTC

NOTE: Most vehicles are equipped with a Malfunction Indicator Light (MIL) or check engine light. If light comes on and remains on while driving, the vehicle requires some type of repair. See appropriate service and repair information.

After repairing fault(s) and clearing fault code(s), the Malfunction Indicator Light (MIL) or check engine light should go out. Some models may use a dual- function indicator light, which is also used to indicate emission component service is due. After performing required service, reset indicator light.

EMISSIONS MAINTENANCE REMINDER RESET - PROCEDURE 1

1. Every 30,000 miles (25,000 miles on 528i) the Oxygen Sensor Warning light in dash will come on as a reminder to replace the oxygen sensor.

NOTE: On 528e models, pull the protective metal plate off before removing oxygen sensor.

2. On 528e models, no interval reset switch is provided. After replacing sensor, remove instrument panel.

Remove and discard bulb for OXYGEN sensor light.

3. On all other models, trace speedometer cable to interval switch (in-line with cable, mounted on frame rail left of transmission). Press White reset button.

DTC

EMISSIONS MAINTENANCE REMINDER RESET - PROCEDURE 2

NOTE: Some late production (February 1985 and later) BMW models have a reset button on rear of the light control assembly located near pedal assembly. Press button to reset light after servicing oxygen sensor.

No reset switch is provided. When oxygen sensor light comes on, service oxygen sensor. Remove and discard bulb from indicator.

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