Failed Digital Heater Control Valve May Cause Poor Heat Output on Mercedes-Benz E350

Problem Description and Possible Solution

A failed digital heater control valve can cause a lack of heat output from the climate control system.

Problem Data
RepairPal Verified
Average mileage: 75,750 (20,000–142,000)
5 model years affected: 2006, 2007, 2008, 2009, more2010
10 people reported this problem
Viewing 1 - 2 of 2 comments
The heater in my 2006 E-350 no longer blows warm/hot air. This was at first an issue that appeared to me to be an anamoly, but it worsened until the heater no longer worked.