My MB has climate control (with buttons and one temp wheel). All works fine and than suddenly the blower stops. And after some time it works again like it should. It works for some hours and then some time not working at all. No strange noises or other problems when working. When not working then it’s only the air that is forced into cabine that is coming in. Air is hot as it should be.
And when it’s not blowing I can hear some noises when clicking buttons but no blowing at all.
Haven’t found anyone with the same problem yet.
No bad fuses. Combination relay just replaced.
Could it be some bad electronic plate?
Or the blower motor itself?
Has anyone any ideas?
Thank you!


My guess is that the problem is with the blower motor.
The brushes inside the motor are wearing out. Which means there is barley any brush left.
If you keep using it, soon the blower should stop working as the two brushes completely wear out.

Plain text

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type='1 A I'> <li> <dl> <dt> <dd> <h2 id='jump-*'> <h3 id> <h4 id> <h5 id> <h6 id>
  • No HTML tags allowed.
  • Lines and paragraphs break automatically.
  • Only images hosted on this site may be used in <img> tags.
The content of this field is kept private and will not be shown publicly.

Disclaimer: Youcanic has made every effort to assure the accuracy of the information on this page. Neither Youcanic nor its affiliates assume responsibility for any loss or damage due to any errors, omissions, lack of information. You agree to hold Youcanic free from any liability arising out of the use of any information contained within. All pictures and references to trademarks and car names are for reference only and do not imply an association with the manufacturer. Consult your owner's manual or authorized factory manuals when performing repair procedures. By entering this site, you agree to our Terms & Conditions and Privacy Polity.