Hello w163 - Mercedes ML Owners:
Our ML's have two series of ABS Wheel Speed Sensors (AKA VSS - vehicle speed sensors)
Which type is determined by your VIN - chassis #.
Chassis Split is at A371935 - if your Chassis is After that, you require sensors for 2003-2005 ML
if your Chassis is Before that, you require sensors for the 1998-2002 ML models.
They look mostly the same & fit the same BUT don't work electrically the same - late sensors in early chassis ML's won't register ANY wheel speed & your ML will be in LIMP Mode - limited to 1-2 gear & about 25 mph.
My ML was idled for about 3 months while I sorted all this out. So this is posted as a 'Friendly Warning' to others to avoid this "dumb" error.
Hope this helps - David
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