Notes on Repair Instructions C4

Notes on Repair Instructions - Carrera 4

General
The 911 Carrera (996 rear-wheel drive) is the basic model covered by the repair, assembly and adjustment operations described. This means that only procedures involving the 911 Carrera 4 are described.

Tightening torques
Tightening torques for the 911 Carrera (996) and 911 Carrera 4 (996) are almost the same. Tightening torques that deviate or are additional are contained in the tables under the appropriate components.

Suspension alignment
The adjustment procedures and values on the front and rear axle are the same as for the 911 Carrera (996 rear-wheel drive). The following is new: After a wheel alignment adjustment the steering angle sensor must be calibrated with the Porsche System Tester 2. This is required because the Porsche Stability Management (PSM) is standard in the 911 Carrera (996). PSM is an automatic control system to stabilize the vehicle in extreme driving situations.

Anti-lock brake system
PSM is standard in the 911 Carrera 4 (996). The Anti-Lock Brake System (ABS) is a component of the entire PSM control system (Porsche Stability Management). Therefore the labor operations relevant to PSM are described in the Anti-Lock Brake System (ABS) - after the separation sheet/ for the 911 Carrera 4.

Brake hydraulics
Bleeding the brakes is described in the 911 Carrera 4 since the PSM is standard for the 911 Carrera 4 (996). Refer to Bleeding the brakes (vehicle with PSM).