Alternator or not?

[Tennants]

While driving today I noticed some differences in my 2004 Vectra CDTi 150.

Firstly, it was ticking over higher @ 1000 revs when at traffic light.

Stopped at the garage for diesel and it struggled to start as if the battery was low.

A few miles later, the ABS light and TC light came on and went off.

I was on the motorway so quickly turned all electrics off and managed to get to a Halfords. Turned it off then tried to start it again. Nothing.

Bought a battery and it fired right up and got me home.

Looked under the bonnet as I changed the EGR valve the other day just to see if Id knocked a plug off but, no.

I believe the alternator is at fault but theres no battery light illuminating on the dash? Not even lit dimly.

Could it still be the alternator or perhaps something else? Ive never had any problems with the battery, always starts with no effort so it couldnt be it thats just completely died.

[soulman]

how old is the battery ??
you should of got Halfords to ck it ..

Does sound like an alternator problem tho

[Tennants]

dont know how old the battery is as its been in the car since I got it 6 months ago.

[soulman]

have you got the old battery still ?? if so get the cells checked in it ,if they have broken down then maybe thats all the problem was .

[DTi Elite]

I would be 99% certain the alternator is dead .

[paul-west-76]

my alternator packed up and i had no warning lights, just started to struggle to start and then not at all, had it checked and was not sending any charge. simple job for the pros, only at the garage for an hour or so. I got my own part and cost me £40 to fit it.

[ronnie63]

Where are you in Scotland as I have a good spare alternator

ronnie

[Tennants]

Ayr. Its deffo the alternator. Engine turned off, 12.2v. Engine on, 11.8v

Alternator removed in half an hour, not too bad a job, 105v one

[ronnie63]

Ok bit far away lol, I got 105 amp denso only 3 months old, I replaced it as thought it was culprit for whine noise but it wasn't

[Tennants]

how much you want for it? I could arrange a courier and pay with paypal?