Noticed it last winter but ignored it ... but it's still doing it ... when you adjust the temperature dial from cold to hot it used to gradually and evenly increase the temperature of the air coming from the vents (both the cabin vents and the face level vents.

 

But now, as you turn the dial round to increase the temperature it doesn't get properly warm until you're well into the HOT zone  ... far more so than it used to when it was working correctly.

 

For example, when it indicates, say,  22 degrees on the display it's still blowing virtually cold - it needs to be turned up higher before you get a respectable amount of heat .

 

Is this something obvious that people have seen before,  or does it mean a strip down and replacement parts?

 

The car is now 9 years old.

 

The coolant level is OK and my local independant  was a bit vague and just said he'd have to hook it up to his computer and didn't hazard any guesses re. what it could be but said if it was the matrix it would be a major job.

At this age I start to wonder if it's a viable proposition to spend many hundreds of pounds on it.

 

Ta.

Have you tried resetting the system: https://www.youtube.com/watch?v=MRa6c9UfyEs