Engine - Lack Of Power
Group: 01Number: 97-07
Date: Sept. 9, 1997
Subject:
Customer Reports Lack of Power
Model(s):
A4 1.8L Turbo with Auto Trans
Condition
Customer reports lack of power.
Service
If condition exists perform the following:
WARNING!
When road testing a vehicle, ALWAYS use a second Technician to operate the VAG 1551 Scan Tool
Never place anything between you and the driver or passenger Airbag.
- Connect the VAG 1551 Scan Tool (ST).
- Start engine, press button -1- to select "Rapid data transfer" operating mode 01.
- Press buttons -0- and -1- to insert "Engine Electronics" address word 01, then press -Q- button to confirm input.
- Press the --> button.
- Press buttons -0- and -8- to select "Read Measuring Value Block" Function 08, then press -Q- button to confirm input.
- Press buttons -0-, -0- and -4- to select Display Group 4, then press -Q- button to confirm input.
- Observe field 3 which displays engine coolant temperature.
When engine coolant temperature is between 45°C and 65°C, Road test vehicle and:
- Press the -C- button ,then press buttons -0-, -2- and -0- to select Display Group 20, then press -Q- button to confirm input.
- Accelerate from a stop at wide open throttle while pushing the print button as many times as possible.
- Repeat procedure with engine coolant temperature above 80°C.
- Using the Scan Tool printouts, add figures from 4 channels -arrows- of Display Group 20 together.
If in any of the rows printed, the sum of the 4 channels is greater than 15°:
- Install new ECM, Part No: 8D0 907 558M
CAUTION!
Part numbers are for reference only. Always check with your Parts Dept. for the latest parts in formation.
If part is not available through the Part Department:
- Contact the Audi Dealer Technicians Helpline.
If in all the rows printed, the sum of the 4 channels is 15° or less:
- Check Turbocharger and Wastegate operation as outlined in Repair Manual A4 1.8 Liter 5V Turbo General Engine booklet No. W42 014 195 114.
Note:
ALWAYS retain a copy of the 1551 printout in the vehicle data file.
When procedure applies to vehicles within The New Vehicle Limited Warranty and adheres to Warranty Policy guidelines, use the following:
Part Identifier: 2470
Labor Operation: 2470710 30 TU