OBD port BMW M3 CONVERTIBLE 2002 E46 Owner's Manual

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OverviewControlsMaintenanceRepairsDataIndex

Controls and features
Operation, maintenance

Lamps:

Parking lamps/Low beams85
Instrument lighting86
High beams/Standing lamps86
Fog lamps86
Interior lamps87
Reading lamps87

Controlling the climate for
pleasant driving:

Air conditioner88
Automatic climate control91

Interior conveniences:

Glove compartment95
Storage compartments96
Cellular phone96
Ashtray, front97
Ashtray, rear97

Loading and transporting
cargo:

Ski bag98
Cargo loading100
Roof-mounted luggage rack for
the hardtop101

Special operating instructions:

Break-in procedure104
Driving notes105
Antilock Brake System105
Brake system105
Hardtop106

Wheels and tires:

Tire inflation pressure109
Tire condition109
Tire replacement110
Wheel and tire
combinations111
Winter tires112
Snow chains112

In the engine compartment:

Hood113
Engine compartment
essentials114
Washer fluids115
Engine oil116
Coolant118
Brake fluid119

Maintenance:

The BMW Maintenance
System120

Laws and regulations:

Technical modifications121
California Proposition
65 Warning121
OBD interface socket122

122n
OBD interface socketThe Onboard Diagnostic (OBD) inter-
face socket is located on the left of the
driver's side at the bottom of the instru-
ment 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.
An illuminated lamp informs you
of the need for service, not of
the need to stop the vehicle.
However, the systems should be
checked by your BMW center at the
earliest possible opportunity.
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 misfiring over even a
short period of time can seriously
damage emission-control system
components, especially 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.<