Work procedure

• Connect diagnostic tester. Refer to Diagnostic tester, connecting 
• Perform a road test.

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

• Coolant temperature must reach at least 80 ° C. Refer to Diagnostic mode 1: Check measured values 

Observe the safety precautions that apply to road tests. Refer to Safety precautions .

Let vehicle cool off with the ignition switched off until the following condition is met:

• Coolant temperature approx. intake air temperature (5 to 35 ° C). Refer to Diagnostic mode 1: Check measured values 

• Perform a road test anew.

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

• Accelerate vehicle uniformly, not at Wide Open Throttle (WOT).
• Drive for 10 minutes in the highest gear or in the highest driving mode on a level driving surface at a constant speed in the range of 65 to 80 km/h at an engine speed of 2000 to 2500 RPM.

• After 10 minutes, downshift until an engine speed of 2800 to 3500 RPM has been reached.
• Drive in deceleration mode at a speed up to approx. 1800 RPM.
• Park vehicle and let engine run at idle for 3 minutes.

• Accelerator pedal must not be operated during this time.

• Perform a road test anew.

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

• Accelerate vehicle uniformly, not at Wide Open Throttle (WOT).
• Drive for 10 minutes in the highest gear or in the highest driving mode on a level driving surface at a constant speed in the range of 65 to 80 km/h at an engine speed of 2000 to 2500 RPM.
• Park vehicle and let engine run at idle for 3 minutes.

• Accelerator pedal must not be operated during this time.

• Read readiness code. Refer to Readiness code, reading 

If a 1 is displayed instead of a 0 in the 8-digit number block:

• Perform a road test anew.

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

• Drive for 10 minutes in the highest gear or in the highest driving mode on a level driving surface at a constant speed in the range of 65 to 80 km/h at an engine speed of 2000 to 2500 RPM.
• Park vehicle and let run at idle for 3 minutes.

• Accelerator pedal must not be operated during this time.

• Read readiness code. Refer to Readiness code, reading 

If in 8-digit number block:

• Display position 5: Secondary Air Injection (AIR) system

and/or

• Display position 6: EVAP canister system

a 1 instead of 0 is displayed:

• Repeat complete work procedure. Refer to Work procedure