45 11 19 Removing and installing front speed sen:sors · Removal

911 Carrera (996) Anti-Lock Brake System (ADS) 45 11 19 Removing and installing front speed sen:sors Removal Installation I 1. With ignition switched off, open the combi- 1. Coat speed sensor and ~e bore in the wheel nation plug connection at the spring strut and carrier with Molykote Longterm 2. pull out the plug for the speed sensor. Note 2. Loosen fastening screw (hexagon socket head There is no a-ring between speed sensor and bolt) and remove the speed sensor. wheel carrier. The speed sensors at front ,andrear axles are the same. 2. Withoutusing excessiveforce, insert speed sensor into wheel carrier and tighten the hexagon socket head bolt to 10 Nm (7.5 ftlb. 3. If the speed sensor has been removed or replaced due to an ABS fault or Traction Contolfault, or because of accident repairs, a functional check should be carried out with the Porsche System Tester 2 -via the Actua Valuesmenu, Speed submenu. 357/1 -45 Important notes Before installation,ensure that there are no met- al chips at the magnetic edge of the speed sen- sor. The gap between speed sensor and pulse wheel is determined by the design and can- not be adjusted. 45 11 19 Removing and installing front speed sensors 45 -13 Printed in Germany, 1997 996451