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2008 Subaru Impreza

 

VEHICLE DYNAMICS CONTROL SYSTEM

 

The Vehicle Dynamics Control (VDC) system helps the driver maintain control of the vehicle under driving circumstances that ordinarily might lead to loss of control, such as oversteer, understeer, and drift conditions. The VDC system constantly monitors the intentions of the driver through the steering angle sensor. A computer analyzes the data sent from that sensor and others, instantly making adjustments. If the computer recognizes the loss of control at either the front or rear of the vehicle, it applies brake pressure to one or more wheels as a means of control to restore stability. An indicator light flashes when the system is running to alert the driver to the driving conditions. Additionally, fuel is cut to reduce engine power while performing these corrective actions.

 

VDC also incorporates all-speed Traction Control -- to help reduce wheelspin -- Brake Assist, and Incline Start Assist.

 

Brake Assist monitors the depression speed applied to the brake pedal. In an emergency stopping situation, this system senses the rapid depression of the pedal and simultaneously boosts the driver’s brake force to the braking system. Brake Assist maintains the braking force until the driver releases the brake pedal.

 

Incline Start Assist is designed for when a vehicle starts off on a hill, the brake remains on for approximately one second after the driver removes his or her foot from the brake to prevent the vehicle from rolling backward. This is designed to assist drivers who are not well versed in hill starts to start up smoother and with confidence. This feature is only on models with manual transmissions.

 

The stability control system enhances the performance of the AWD system and helps to maintain directional stability on all road surfaces. The system’s ability to instantaneously adjust to road conditions makes this an invaluable tool to assist drivers in avoiding accidents.

 

Note: It is important to turn off the VDC system before performing any service work that involves lifting all four wheels from the ground and running the engine while in gear. To turn off the VDC system, install a fuse into the VDC off holder inside the fuse box.

 

2007/2008 Subaru Impreza Specifications and Dimensions

 

 

  2007
Sedan
2007
Wagon
2008
4-Door
2008
5-Door
Headroom, front (in) 38.6 39.7 40.3 40.3
Headroom, rear (in) 36.7 37.3 37.6 37.6
Legroom, front (in) 42.9 42.9 43.5 43.5
Legroom, rear (in) 33.0 33.7 33.5 33.5
Shoulder room, front (in) 52.7 52.7 54.8 54.8
Shoulder room, rear (in) 52.9 52.9 53.2 53.2
Hip room, front (in) 53.3 53.3 53.4 53.4
Hip room, rear (in) 51.9 51.7 53.3 53.3
Cargo width (in)   37.2   42.0
Cargo area height (cu ft)   31.4   26.4
Overall length (in) 175.8 175.8 180.3 173.8
Overall width (in) 68.5 66.7 68.5 68.5
Overall width, Outback Sport (in)   67.3   68.5
Overall height (in) 56.7 57.7 58.1 58.1
Overall height, Outback Sport (in)   58.1   58.3
Wheelbase (in) 99.4 99.4 103.1 103.1
Min. road clearance @ curb weight (in) 6.3 6.3 6.1 6.1
Min. road clearance @ curb weight, Outback Sport (in)   6.7   6.3
Track, front (in) 58.5 57.7 58.9 58.9
Track, front, Outback Sport (in)   57.5   58.7
Track, rear, 2.5i (in) 58.1 57.3 58.9 58.9
Track, rear, WRX (in) 58.3 57.3 59.1 59.1
Track, rear, Outback Sport (in)   57.3   59.1
Horsepower, 2.5i 173 @ 6,000 rpm 173 @ 6,000 rpm 170 @ 6,000 rpm 170 @ 6,000 rpm
Horsepower, WRX 224 @ 5,600 rpm 224 @ 5,600 rpm 224 @ 5,200 rpm 224 @ 5,200 rpm
Torque, 2.5i (lb-ft) 166 @ 4,400 rpm 166 @ 4,400 rpm 170 @ 4,400 rpm 170 @ 4,400 rpm
Torque, WRX (lb-ft) 226 @ 3,600 rpm 226 @ 3,600 rpm 224 @ 2,800 rpm 224 @ 2,800 rpm
2.5i coefficient of drag 0.33 0.34 0.32 0.34
WRX coefficient of drag 0.33 0.37 0.34 0.35
Outback Sport coefficient of drag   0.37   0.35

 

 

 

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