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Home >> Mercedes Benz >> 1979 >> 300TD >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Automatic Level Control >> Testing >> Leveling Valve

Leveling Valve

  1. Disconnect leveling lever from connecting rod (attached to torsion bar). Start engine and move lever to filling position. Vehicle should raise. Move lever to return flow, vehicle should lower.
    NOTE: Perform this test quickly to prevent damage to components.
  2. While performing this test, check for leaks at control valve, special shock absorbers, pressure reservoirs and all line connections. Repair or replace as necessary.
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