Diagnostic mode 6: Check test results of components that are not continuously monitored: Procedure

Read readiness code, see READ READINESS CODE .
Let engine run at idle.
Under address word 33, select "Diagnostic mode 6: Check test results of components that are not continuously monitored".
Select the "Test -ID 01: Catalytic converter".
Check specified values at idle.

Evaluation test-ID 01:

EVALUATION TEST-ID 01

Catalytic converter	Vehicles with engine code AWD		Vehicles with engine code AWP, AWW
	Specified value:		Specified value:
	min.	max.	min.	max.
Catalytic converter monitoring bank 1, aging value	0.1992	0.2500	0.1992	0.2500
Catalytic converter monitoring bank 1, aging value, short test	-	0.3516	-	0.3516

End diagnosis and switch ignition off.
If the specified values are exceeded:
Replace the front exhaust pipe with catalytic converter. See EXHAUST SYSTEM COMPONENTS, REMOVING AND INSTALLING , Item -4-.
Erase DTC memory of Engine Control Module (ECM). See DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
Generate readiness code, see READINESS CODE, GENERATING .

Read readiness code, see READ READINESS CODE .
Let engine run at idle.
Under address word 33, select "Diagnostic mode 6: Check test results of components that are not continuously monitored".
Select the "Test -ID 03: Secondary Air Injection (AIR) system"
Check specified values at idle.

Evaluation test-ID 03:

EVALUATION TEST-ID 03

Catalytic converter	Vehicles with engine code AWD		Vehicles with engine code AWP, AWW
	Specified value:		Specified value:
	min.	max.	min.	max.
reduced secondary air mass bank 1	0.4530	-	0.4530	-
very small secondary air mass bank 1, short test	0.0700	-	0.0700	-
Leakage bank 1, short test	-	2.0 kg/h	-	2.0 kg/h

End diagnosis and switch ignition off.
If the specified values are not reached:
Check secondary air system for proper seal. See CHECKING SECONDARY AIR SYSTEM FOR PROPER SEAL .
Check combination valve, see COMBINATION VALVE, CHECKING .
Check Secondary Air Injection (AIR) Pump Motor -V101-. See SECONDARY AIR INJECTION (AIR) PUMP MOTOR, CHECKING .
Erase DTC memory of Engine Control Module (ECM). See DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
Generate readiness code. See READINESS CODE, GENERATING .

Read readiness code, see READ READINESS CODE .
Let engine run at idle.
Under address word 33, select "Diagnostic mode 6: Check test results of components that are not continuously monitored".
Select the "Test -ID 05: Tank ventilation system".
Check specified values at idle.

Evaluation test-ID 05:

EVALUATION TEST-ID 05 (1 OF 2)

Catalytic converter	Vehicles with engine code AWD		Vehicles with engine code AWP, AWW
Catalytic converter	Specified value:		Specified value:
Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-	min.	max.	min.	max.
Passive test (can only check OK)	0.1484	-	0.1484	-
Active test: Deviation of oxygen sensor control in direction "lean" (can only check OK), short test	0.070	-	0.070	-
Active test: Deviation of oxygen sensor control in direction "rich" (can only check OK), short test	-0.070	-	-0.070	-
Active test: Air balance at idle OK, also short test	30%	-	30%	-
Active test: Air balance at idle not OK, also short test	30%	-	30%	-

EVALUATION TEST-ID 05 (2 OF 2)

Catalytic converter	Vehicles with engine code AWD		Vehicles with engine code AWP, AWW
Catalytic converter	Specified value:		Specified value:
Tank seal	min.	max.	min.	max.
Large/small leak	1.65-1.90	-	1.65-1.90	-
Reed contact not closed	-	0.5/s	-	0.5/s
Reed contact does not open	-	30	-	30
Tank ventilation system not OK during initial flush	0	-	0	-

If the specified values are exceeded:

EVAP canister system, checking for proper seal. See EVAP CANISTER SYSTEM, CHECKING FOR PROPER SEAL .
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. See EVAPORATIVE EMISSION (EVAP) CANISTER PURGE REGULATOR VALVE, CHECKING .
Leak detection pump (LDP) -V144-, checking. See CHECK LEAK DETECTION PUMP (LDP) .
Erase DTC memory of Engine Control Module (ECM), see DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
Generate readiness code, see READINESS CODE, GENERATING .

Connect diagnostic tester, see CONNECT DIAGNOSTIC TESTER .
Perform a road test until a coolant temperature of 80 to 100 °C has been reached, see DIAGNOSTIC MODE 1: CHECK MEASURED VALUES .

Observe the safety precautions that apply to road tests. See SAFETY PRECAUTIONS .

Switch ignition off.
Start engine at a coolant temperature of 80 to 90 °C and let it run at idle.
Perform a 5 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 approx. 1800 to 2200 RPM, see DIAGNOSTIC MODE 1: CHECK MEASURED VALUES ; PID 12, engine rotations per minute (RPM)
Vehicle speed constant 90 km/h, see DIAGNOSTIC MODE 1: CHECK MEASURED VALUES ; PID 13, Vehicle speed

Observe the safety precautions that apply to road tests. See SAFETY PRECAUTIONS .

Let engine run at idle.
Under address word 33, select "Diagnostic mode 6: Check test results of components that are not continuously monitored".
Select the "Test -ID 09: Engine Coolant Temperature (ECT) sensor".
Check specified values at idle.

Evaluation test-ID 09:

EVALUATION TEST-ID 09

Engine Coolant Temperature (ECT) Sensor -G62-	Specified value:
Engine Coolant Temperature (ECT) Sensor -G62-	min.	max.
Cooling fluid temperature	80.3 °C	115 °C

If specified value is not obtained:

Check Engine Coolant Temperature (ECT) Sensor -G62-. See ENGINE COOLANT TEMPERATURE (ECT) SENSOR, CHECKING .
Check coolant regulator:
See COOLING SYSTEM COMPONENTS (ENGINE SIDE)
Erase DTC memory of Engine Control Module (ECM), see DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
Generate readiness code, see READINESS CODE, GENERATING .