C0916 Active Roll Stabilisation Rear Actuator Circuit

C0916 has no documented user; it is absent from every accessible list, bulletin and index. It names the rear axle actuator of active roll control. Systems with actuators on both axles split the stabilising torque between front and rear, which also lets them tune self-steering; ZF describes this for its electromechanical roll control. Faults at the rear unit therefore change balance as well as body lean. Bulletins show how carmakers handle such cases under their own codes: Mercedes updated the front and rear roll stabilisation units of 2021 GLE and GLS models whose software could display a warning not to exceed 50 mph, and Land Rover quarantined 2022-23 Range Rover and Range Rover Sport cars whose front and rear roll control modules sometimes failed to initialise, lighting an amber suspension lamp.

Likely causes

Symptoms

• Amber suspension warning lamp
• Speed limit advice in the cluster, more body roll and changed handling balance

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: zf.com, static.nhtsa.gov, static.nhtsa.gov.