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Home >> Mercedes Benz >> 1993 >> 300SL Automatic >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Power Convertible Soft/Hard Tops & Roll Bar - 300SL, 500SL & 600SL >> Hydraulic Diagnostic Tests (Section 32) >> Hydraulic Test Program - Test Soft Top Up (Section 34) >> Pressure Testing

Pressure Testing

Examples Of Building Up & Releasing Test Pressure: 

  1. SOFT TOP, IGNITION ON:  Activate power soft top switch (toward lower if the soft top is down, toward raise if the soft top is up) for 5 seconds. Have a second technician disconnect relay A7/5k1, See Figure . Hold power soft top switch for 5 additional seconds. Read and record test pressure. Release Test Pressure:  Briefly activate power soft top switch several more times.
  2. ROLL BAR, IGNITION ON:  Activate Roll Bar switch (toward lower if the roll bar is lowered, toward raise if it is raised) for 5 seconds. Have a second technician disconnect relay A7/5k1, see Figure . Hold roll bar switch for 5 additional seconds. Read and record test pressure. Release Test Pressure:  Briefly activate power soft top switch several more times.