It still amazes me that the VDO system in the mercedes has problems almost 100% of the time, but the VDO system in VWs and Audis, which is vacuum based with its own separate pump, still works most of the time with the most common failure being a torn vacuum bulb on the throttle.

I've fiddled around with my cruise system a bit, I cleaned the potentiometer inside the actuator and reflowed any marginal looking solder joints in the amplifier. That got the cruise working great... for about 3 hours. I guess now it's on to replacing capacitors...

-J

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.