OBD interface socket
133n
When the filler cap is not properly
An illuminated indicator informs
you of the need for service,
but not of the need to stop the
tightened, the OBD system can
detect the vapor leak and the indicator
will light up. If the filler cap is subse-
vehicle. However, the systems should
be checked by your BMW center at the quently tightened, the indicator should
earliest possible opportunity.
go out within a few days.<
Under certain conditions, the indicator
will blink or flash. This indicates a rather
severe level of engine misfire. When
this occurs, you should reduce speed
and consult the nearest BMW center as
soon as possible. Severe engine misfire
over only a short period of time can
seriously damage emission control
components, especially the catalytic
converter.
Access to the interface socket for the
Onboard Diagnostic system (OBD):
Lift off the side cover in the center
console on the passenger's side
(arrow).
"Service Engine Soon" warning
lamp for Canadian models.
The purpose of the OBD system is to
ensure proper operation of the emis-
sion control system throughout the
vehicle's lifetime by monitoring emis-
sion-related components and systems
for deterioration and malfunction.
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