BMW serie 3 sedan 2001 用户手册

154

OBD interface socket

The OBD interface socket for onboard
diagnostics is located on the driver's
side at the left-hand bottom of the
instrument panel and under a cover.
The cover has the letters "OBD" on it.

The purpose of the OBD system is to
assure proper emission control system
operation for the vehicle's lifetime by
monitoring emission-related compo-
nents and systems for deterioration and
malfunction.

460us250

An illuminated indicator informs
you of the need for service, not
that you need to stop the

vehicle. Your system should be
checked, however, at the earliest
possible opportunity by your BMW
center.

If the indicator blinks or flashes, this
indicates a high level of engine misfire.
Reduce speed and contact your
nearest BMW center immediately.
Severe engine misfire over even a short
period of time can seriously damage
emission control components, espe-
cially the catalytic converter.

"Service Engine Soon" warning
lamp for Canadian models.

If the fuel filler cap is not on tight
enough, the OBD system can

detect leaking vapor and the indicator
will light up. If the fuel filler cap is then
tightened, the indicator will usually go
out after a short period of time.