W164 heater problem does ml350 2011 have a heater control valve

[Pad1]

The heater is only luke warm on low blower power. New auxilllary pump fitted . Diagnostics show little just a actuator flap sticking. Require diagram of where the heat flap actuator may be on the UK model Ml350 2011. And how to access and change.

 

[Gh3382]

Hi Pad1

Have you got an update on this as mine is doing wonderful things as well.

 

[Pad1]

Hi Pad1

Have you got an update on this as mine is doing wonderful things as well.

Sorry just picked this up . One actuator behind passenger side dash was clicking changed it and worked for a while .
But then found my header tank was loosing pressure changed the cap then was ok for a week . In the end changed the header tank and the last two months had no problems .

 

[Gh3382]

Pad1

Thanks for the reply. Just adds more things for me to look at

Appreciated