Hedgehog (FSR) Question? Battery Drain still! >:(

[james8whippy]

Hey,

So my car is still dying on me overnight. Thought it was my battery so changed that and it solved it for a while and I thought Yay great. But NO it hasn't. It's annoying because it's random and I can never leave my car for a day to a few days without the worry it's not going to start. Have to have a charger connected all the time.

From what I've read it could well be the FSR. I looked through the invoices and the previous owner had it replaced about 3 years ago by BMW so you would think it shouldn't be that as it's been done already but you never know with BMW's.

OK so my question. How can I find out it is definitely the FSR thats causing the issue? I've tried listening to see if the fan is still spinning like people have said but I can't hear anything....

Is there an easier method of diagnostics without buying one? I was thinking If I took the fuse out for the heater would the FSR still get power to it? That way I'm thinking I can leave it for a few days without the heater fuse in and if it doesn't go flat then I know it's definitely that?

What are your thoughts?

Cheers
James

[james8whippy]

For people stumbling across this post in the future I went ahead and changed the FSR last weekend and so far it's been a week and it hasn't gone flat! I am hoping the problem is resolved

I took the old unit out and and it didn't look any different to the brand new one in the packet. Annoying really as I was hoping to see it burn out or broken just for satisfaction of spending £80 at the main dealer.

It was last replaced 3 years ago which I mentioned when buying the new one the parts guy said I get a 2 year warranty on the new one.

We all know its a known issue on BMW's so why can't they accept it is!! ..... That's BMW I guess.

[jaynana]

well done. i havent had a reason to touch that dreaded hedgehog yet but if my battery starts playing up i know where to go..

[Sanj]

[quote="jaynana"]
well done. i havent had a reason to touch that dreaded hedgehog yet but if my battery starts playing up i know where to go..
[/quote]

Think the face-lifts don't suffer from the problem so much.

[Raj]

Think you'll find that will have sorted it. Renowned weak point. My mate replaced his on his M3 and it failed again within 4 months so they really are crap. Atleast you have 2 years warranty on it.

[james8whippy]

Cheers Guys.

Knowing my luck it will break 1 day over the two years haha

[dark_stranger]

What is an FSR? My battery drains within a week (tried new battery) and same as you, can never plan using the car without giving the battery a charge. Mine is an 3.0 petrol 04 facelift model.

[Horizon]

http://www.ebay.co.uk/itm/BMW-1-4-0-Sca ... 3ccf9352dc

Read this thread, it relates to the FSR and battery drains

[StewieG]

[quote="Sanj"]
[quote="jaynana"]
well done. i havent had a reason to touch that dreaded hedgehog yet but if my battery starts playing up i know where to go..
[/quote]

Think the face-lifts don't suffer from the problem so much.
[/quote]

Ive a face lift and battery keeps draining. As OP mentioned I cant hear any fan whilst in the car with power off. I do hear the webasto and the DVD nav as the car wakes up again though.