I have a 2003 WRX, totally reliable so far but just now it wouldn't turn over.
It's on the original battery and I suspect this is the culprit but not sure.
Just lately when turning the key the alarm has made a momentary noise. Is this a sign of impending battery failure?
Thanks chaps. Not happy driving the Galaxy!!

 

switch the headlights on and then try to turn it over - this will show a dead/ dying battery

On a previous scoob (bugeye) my battery went overnight without warning

 

I did put the lights on but they weren't especially dim.
Tried starting and all the lights including inside ones dimmed quite a lot but no turning over so I think it must be low battery power.
I've got it on charge and will see in the morning I guess. Thanks

 

Sounds like a dying battery, suggest a calcium one from Halfrauds, about £65 new, did the job on my old MY02 STi.

 

Yep, battery. My 02WRX did the same, made the squeaking noise on turnover.
A new battery sorted it.

 

Thanks to all, that's v. reassuring.
Started fine without a squeak this morning after an overnight charge.
Off to Halfords lunchtime!

 

If the alarm just beeps but the engine wont turn over its usually because the battery charge is low - this seems to happen a lot with Imprezas, especially if you leave them for a week without driving as the alarm / tracker seems to drain the battery really quickly.

If you're getting a battery from Halfords check to see if they are still doing the one with the 3 year guarantee on it.

 

Will do. Cheers

 

Halfords should do 4 yr guarantee with the calcium one...

 

Got the calcium one with 4 yr guarantee. £85 fitted.
My battery came up as "unserviceable".
That's the only thing that's EVER failed on the Scoob and can't blame Subaru for that- great car!