Knock sensor, checking: Notes
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2005 Volkswagen Jetta, 2005 Volkswagen GTI, 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.
NOTE:
- It is extremely important to keep to the tightening torque of 20 Nm to ensure the knock sensors perform perfectly.
- Knock sensor (KS) 1 G61 and knock sensor (KS) 2 G66 have a direct 2-pin connector and consequently no contact for the shielding in the connector.
- Only gold-plated contacts may be used when servicing the knock sensor connector contacts.
- Contact surfaces between knock sensor and cylinder block must be free of corrosion, dirt and grease.
Special tools, testers and auxiliary items required
- Test box VAG1598/31
- Multimeter VAG1526A or Fluke 83 multimeter
- Adapter set VAG1594C
- Wiring diagram