137
n
Repairs
Index
Overview
Controls
Car care
Technology
Data
OBD connector
The Onboard Diagnostic (OBD) connec-
tor is on the driver's side, underneath
the left-hand side of the instrument
panel, 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.
If the indicator blinks or flashes, this
indicates a high level of engine misfire.
Reduce speed and contact your near-
est BMW center immediately. Severe
engine misfire over only a short period
of time can seriously damage emission
control components, especially the cat-
alytic converter.
When the fuel filler cap is not properly
tightened, the OBD system can detect
the vapor leak and the indicator will
light up. If the fuel filler cap is subse-
quently tightened, the indicator should
extinguish after a short time.
Summary of Contents for 323Ci
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