Operation, care and maintenance -> OBD connector for your BMW 7 Series 2001-2007

OBD connector  
163n  
An illuminated "Service Engine  
Soon" lamp informs you of the  
When the filler cap is not properly  
tightened, the OBD system can  
need for service, not of the need detect the vapor leak and the indicator  
to stop the vehicle. However, the sys- will light up. If the filler cap is subse-  
tems should be checked by your BMW quently tightened, the indicator should  
center at the earliest possible opportu- extinguish within a few days.<  
nity.  
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 se-  
riously damage emission control com-  
ponents, especially the catalytic con-  
verter.  
The interface socket for the onboard di-  
agnosis system is located beneath a  
cover on the center console front panel  
(arrow).  
A sticker with the letters "OBD" is at-  
tached to the cover.  
"Service Engine Soon" warning  
lamp for Canadian models.  
The purpose of the OBD (Onboard  
Diagnostic) system is to assure proper  
emission control system operation for  
the vehicle's lifetime by monitoring  
emission-related components and  
systems for deterioration and malfunc-  
tion.  
Online Edition for Part No. 01 41 0 004 597 - © 08/99 BMW Group