BMW X4 Owner's Manual page 216

Mobility
Socket for OBD Onboard
Diagnosis
Information
CAUTION
Improper use of the socket for Onboard
Diagnosis can lead to vehicle malfunctions.
There is risk of property damage. The manu‐
facturer of your vehicle strongly recommends
access to the socket for Onboard Diagnosis be
limited to a dealer's service center, another
qualified service center or repair shop or other
authorized persons.◀
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 lamp lights up:
Emissions are deteriorating. Have
the vehicle checked as soon as
possible.
▷ The warning lamp flashes under certain
circumstances:
This indicates that there is excessive mis‐
firing in the engine.
Reduce the vehicle speed and have the
system checked immediately; otherwise,
serious engine misfiring within a brief pe‐
riod can seriously damage emission con‐
216
Maintenance
Online Edition for Part no. 01 40 2 964 144 - VI/15
trol components, in particular the catalytic
converter.
I n f o r ma t i o n P r o v i d e d b y :