306 charging problem

May 14, 2006 10 Replies
K

hi. Car is a 306 Turbo diesel P reg. Yesterday I noticed that the battery warning light was off when I turned the ignition, and its stayed off ever since except for the occasional stuttering dim glow.


  1. Have taken voltage of the battery on its own = 12.45 volts (sounds OK). Same voltage is found the alternator - so I'm guessing no bad earths.
  2. When car started voltage of battery drops to about 11.5 volts and will climb very slowly if nothing is switched on (otherwise it goes down steadily)
  3. Voltage across the points at the alternator is 4.5v and climbs to 5 if engine is accelerating. But it doesnt seem to make much difference to the battery being charged faster.
  4. When you switch the car off again the battery is at 12.2 volts and then climbs steadily until its 12.45 volts again (!)

I've checked the general cables coming from the battery (including cleaning the earth cable) but it hasnt made any difference.



What do you think is shot : is it the alternator or the battery? thanks



Vote
Twitter Facebook LinkedIn
C

check Alternator brushes are not worn or dirty. sticking,or could be internal fault in Alternator or votage regulator,

Vote
Twitter Facebook LinkedIn
K

Thanks guys, I guess I am looking at a new alternator then, GSF do an exchange one for =A394. Any ideas if I can get it cheaper than that? cheers

Chris wrote:

Vote
Twitter Facebook LinkedIn
C

Try Camerley Autos or Pug spares.

Vote
Twitter Facebook LinkedIn
K

Camberley auto factors =A3160 and thats for a recon!

Aldershot car spares had loads but they couldnt find one that matched mine. cheers Kali

Vote
Twitter Facebook LinkedIn
C

try pug spares on pugspares.co.uk eurocarparts.com they should help you=20

Vote
Twitter Facebook LinkedIn
C

Also try carparts-direct.co.uk they are very helpfull

Vote
Twitter Facebook LinkedIn
B

Aldershot car spares had loads but they couldnt find one that matched mine. cheers Kali How close a mach were you trying to get? Several makes were fitted to all Peugeots, and one from a different model Pug will also fit.

Vote
Twitter Facebook LinkedIn
K

I took it out last night to have a look - it has single mounting points on top and bottom, All the ones that I was shown had at least one double mounting bracket (unless the double actually fits too?). Also the points on mine were on the face of the cylinder (IYSWIM) rather than the end. The alternator is a Bosch but the markings on it arent that helpful, other than its 80 Amps. It actually looks fairly new bizarrely enough.

I should mention at this point that the block of the engine was replaced with another one by a mechanic, so it is a XUD9TE but perhaps a later or earlier version.

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required