Diagnostic socket
Principle
Using the diagnostic socket, the vehicle
owner can also have data saved to the vehi-
cle read out, for a fee as required, by an au-
thorized service center or another qualified
service center or repair shop.
General information
Disconnect devices from the diagnostic
socket before locking the vehicle.
Additional information:
Indicator/warning lights, refer to page 134.
Safety information
NOTICE
The socket for Onboard Diagnosis is an
intricate component intended to be used
in conjunction with specialized equipment
to check the vehicle’s primary emissions
system. Improper use of the socket for
Onboard Diagnosis, or contact with the
socket for Onboard Diagnosis for other
than its intended purpose, can cause vehi-
cle malfunctions and creates risks of per-
sonal and property damage. As such, it is
strongly recommended that access to the
diagnostic socket be limited to an author-
ized service center or another qualified
service center or repair shop, or other per-
sons who have specialized training and
equipment and who are able to use the
diagnostic socket correctly.
Overview
The diagnostic socket for reading out vehi-
cle data is located on the driver’s side.
Exhaust emissions
– The warning light illuminates:
The exhaust gas quality is declin-
ing, e.g., because the fuel filler
cap is fitted incorrectly. Have the
vehicle checked as soon as possi-
ble.
– The warning light flashes under certain
circumstances:
This indicates that there is excessive
misfiring in the engine.
Reduce the vehicle speed and have the
vehicle checked immediately; otherwise,
serious engine misfiring within a brief
period can seriously damage emission
control components, in particular the
catalytic converter.
Have the vehicle checked by an authorized
service center or another qualified service
center or repair shop.
Taking the vehicle out of serv-
ice
When the vehicle is shut down for longer
than three months, special measures must
be taken. For more information, contact an
Seite 326
MOBILITY Maintenance
326
Online Edition for Part no. 01405B37A59 - II/24
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