Does anyone know if the A/C compressor on a 1995 C280 (W202) is triggered 100% "on" via the proper voltage & polarity signal (like the W124's), or is it one of those "new" types of A/C compressors that use a modulated signal to vary it's pumping strength ?

Thanks,
:-) neil

1988 E36T AMG
1995 500E
1995 E320 wagon