Jetta Sedan L4-1.9L DSL Turbo (BEW) (2005)
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Ride Height Sensor: Description and Operation
Level control system sensor in vehicles with automatic headlight range control - general information
Vehicles with gas discharge headlights come standard with automatic headlight range control.
The automatic headlight range control requires information about suspension compression and rebound at the front and rear axles.
For this, the position of the left lower control arm in relation to the structure is transferred over a connecting link to the left front level control system
sensor G78. The sensor transmits electrical signals to the headlight range control module.
On the rear axle, signals are transmitted to the control module from the left rear level control system sensor G76.
These signals are required for determining vehicle height.
The automatic headlight range control reacts automatically to changes in vehicle inclination.
The vehicle height can change in the following situations:
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Towing a trailer
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Different load conditions; vehicle empty, vehicle partially or fully loaded
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Slow or fast driving habits
CAUTION: Adjustment of headlights!
Note:
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Checking the headlight basic setting is necessary when:
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The retaining clamp for the connecting link on the lower control arm was loosened
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The lower link/arm was removed and installed or replaced
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Work is performed on level control system sensor
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The level control system sensor is replaced
