BMW M3 SEDAN, Owner'S Manual

Page: 351 / 392

the performance of service and maintenance
work.
The manufacturer of your vehicle recommends
that maintenance and repair be performed by a
service center or another qualified service center
or repair shop. Records of regular maintenance
and repair work should be retained.
Socket for OBD Onboard
Diagnosis
General information
Devices connected to the OBD socket trigger
the alarm system when the vehicle is locked. Re‐
move any devices connected at the OBD socket
before locking the vehicle.
Safety information
NOTICE
The socket for Onboard Diagnosis is an intri‐
cate component intended to be used in con‐
junction with specialized equipment to check
the vehicle’s primary emissions system. Im‐
proper use of the socket for Onboard Diagno‐
sis, or contact with the socket for Onboard Di‐
agnosis for other than its intended purpose,
can cause vehicle malfunctions and creates
risks of personal and property damage. Given
the foregoing, the manufacture of your vehicle
strongly recommends that access to the socket
for Onboard Diagnosis be limited to a dealer's
service center or another qualified service cen‐
ter or repair shop or other persons that have
the specialized training and equipment for pur‐
poses of properly utilizing the socket for On‐
board Diagnosis.
Position
There is an OBD socket on the driver's side for
checking the primary components in the vehi‐
cle's emissions.
Emissions
▷ The warning light lights up:
Emissions are deteriorating. Have the
vehicle checked as soon as possible.
▷ The warning light flashes under certain cir‐
cumstances:
This indicates that there is excessive misfiring
in the engine.
Reduce the vehicle speed and have the sys‐
tem checked immediately; otherwise, serious
engine misfiring within a brief period can seri‐
ously damage emission control components,
in particular the catalytic converter.
Seite 351
Maintenance
MOBILITY
351
Online Edition for Part no. 01405A1E4B0 - X/20