Work procedure
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- 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.
NOTE:
- Engine speed. Refer to Diagnostic mode 1: Check measured values
- Vehicle speed. Refer to Diagnostic mode 1: Check measured values
- 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