heater blowers hardly any flow.

[iansclk]

The blower in my clk 200 doesnt seem to have much puff,even when the fan is on number 5 still seams weak. Is there a filter or something that needs changing? If so where would i find it?

 

[Will]

Check the pollen (cabin) filter. It sits under the dashboard on the passenger side.

Quick and easy to replace.

Will

 

[grober]

DIY: Service E Cabin Air Filter Replacement - Mercedes Benz SLK World Forum

If its a R170 it could be the heater motor brushes. http://www.benzworld.org/forums/r170-slk-class/1418376-fixing-ventilation-system-fan-motor.html

 

[Ted]

try this......

 

[iansclk]

Many thanks to everyone who replied will give it a go.

 

[martyz]

could be resistor block next to fan,it controls the running speeds,brushes worn normally causes fan to stop and restart when you hit a bump, or thump the underside of glovebox