Work procedure

CAUTION: To reduce the risk of accident during road tests, always observe safety precautions. See SAFETY PRECAUTIONS .

Connect diagnostic tester. See Connect diagnostic tester .
Perform a 15 minute road test in the highest gear or in the highest driving mode on a level driving surface.

The following operating conditions must be met during this road test:

Engine speed 1800 to 2200 RPM. See "PID 12: Engine rotations per minute", MODE 1: CHECK MEASURED VALUES .
Vehicle speed constant 90 km/h. See "PID 13: Vehicle speed", MODE 1: CHECK MEASURED VALUES .

Let engine run at idle.
In diagnostic function "33 - OBD", select "Mode 6: Check test results of components that are not continuously monitored".
Select the "Test-ID 01: Catalytic converter".

Check specified value at idle.

Test-ID 01: CATALYTIC CONVERSION SPECIFICATION

Catalytic conversion

Specification ⁽¹⁾

Bank 1

min: 8192.000

⁽¹⁾	Control module internal calculated value

If the specified values are exceeded:

Replace the front exhaust pipe with catalytic converter. See CATALYTIC CONVERTER, REMOVING AND INSTALLING .