I think my Alternator has gone

[jako999]

Hi all I was driving along and the battery light game on so I did a few tests and every worked except the heated rear window so I stopped turned off and started again, after about half a mile battery light back on. Its about a 5 mile drive home so off I went turned off the radio and the blowers thank god the roof was shut for once about a mile away from home every thing started to flash on the dash and the head lights flashed then went off great in the dark. When I got it home and turned it off the battery is flat, Ive charged it a bit and started it, it runs ok but as soon as you switch on thing after a minute everything starts flashing again there is no charge to the battery it sits at around 11.5v with the engine running. Is it the alternator or is there anything else? I assume all 0.7 alternators are the same and the Brabus is no different as they all seem to be listed the same on ebay for the Denso ones at around £108 are they easy to fit or a pig and is there a how to?

Thanks in advance

[Evilution]

It probably is the alternator. There are 5 different alternators for the suprex engine, get the wrong one and you'll have wasted time and money.
I always recommend buying a new one from smart, they are only about £180 and you are guaranteed the right one.
The removal and fitting guide for the roadster is on my site.