Heater working full when switched off

[sid10]

Done a 60 mile journey today just as stopping turned heater off but it kept on working on full , stopped the car & switched off but was still on full , after 5 minutes checking various fuses it switched itself off & after an hour went back to the car it was working fine ! Any ideas as the car is also difficult to start ?
  Changed the battery to a heavier duty one last year , has been dealer maintained from new & has 65,000 miles on . Will changing the hedgehog stop the problem as I am getting sick of jumping the car ?
 

[X5Sport]

Certainly sounds like the FSR/Hedgehog is about to die.

Richard

[sid10]

Hi is it a DIY job or a dealer job ?

[Stevejspm]

Second that! Deffo sounds like hedgehog.

[X5Sport]

DIY.  Have a search on here.  Several folks have done it.  Fiddly if you have large hands.

R

[Stevejspm]

DIY job, located behind centre console. I'm sure there's a thread on replacement on the board. Shout if you can't find it or get stuck.

[Stevejspm]

Apologies 'X5' didn't mean to 'steal your thunder' . We must of both been replying at the same time!

[X5Sport]

Who me?  Not bothered......great minds 

[Stevejspm]

I think mine is more a case of been there 3 times before with the current E53 & 2 previous E39's!

[sid10]

Hi where is best place to buy the hedgehog as there seems more than one available ?
Thanks for the help !
First drivers side trim bonnet catch trim
Centre console carpet
Seat as far back as possible
Steering wheel highest point
That's as far as I have seen so far will try tomorrow found a thread aw8 also on YouTube !

[Stevejspm]

I've always bought mine from main dealer, 2 year warranty with them (apparently). I personally wouldn't trust a non branded part but that's just my opinion. Last one I bought was about 3 months back, about £75 from memory.