Porsche 996 TT, Repair Manual

Page: 845 / 2099

45 15 19 Removing and installing rear speed sensors
Removal
Installation
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Removal
1. With ignition switched off, open the combination plug connection at the spring strut and pull out
the plug for the speed sensor.
2. Loosen fastening screw (hexagon socket head bolt) and remove the speed sensor.
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Installation
Note
Before installation, ensure that there are no metal chips at the magnetic edge of the speed sensor! •
The gap between speed sensor and pulse wheel is determined by the design and cannot be adjusted! •
There is no O−ring between speed sensor and wheel carrier! •
The speed sensors at front and rear axles are the same! •
1. Coat speed sensor and the bore in the wheel carrier with Molykote Longterm 2.
2. Without using excessive force, 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 Contol fault, or because
of accident repairs, a functional check should be carried out with the Porsche System Tester 2 via the
Actual Values menu, Speed submenu.
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