On the rear axle of the Vectra with a 16V engine are disc brakes. Unlike the front wheels, which have floating caliper disc brakes, the rear wheels are fixed caliper disc brakes.
The brake caliper is stationary and does not have a movable cylinder body like a floating caliper brake caliper. Instead, a fixed caliper disc brake has two brake pistons. When you press the brake pedal, you press one brake pad to the right and left.
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