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407 1.6HDi SE Intermittent Starting Problem - 2004 Model. 43,000miles

I bought a Peugeot 407 1.6HDi SE three weeks ago. Since then I have returned to the car on two occasions only to get the symptoms of a flat battery when attempting to start. On the first occasion the AA used their power pack to start it. On the second occasion an obliging Fiat Punto owner provided starting power. The alternator is turning out 14.5v and the car can run with the headlamps on immediately following these failures. On both occasions the car has been sitting for 20 minutes. Both occasions have been preceded by long runs each within a day of the failure. It might be the battery as the car has done 43,000 miles and is 3 years and 4 months old. Has anyone got other ideas? Is there any known problem with the Peugeot 407 1.6HDi that can drain the battery when the car is parked? The car is going back into the garage for the last chance fix before I demand a refund. They have had one crack at it already. The car needed a Starter Pack to get it started when I viewed it. I should have knocked it back then! There were also two missing TPMS tyre valves which escaped their pre-sale check despite the loud warning. They have fixed this.

Thanks, David Rocke

Reply to
DaveTheRave.NET
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Sounds to me the garage is trying too get rid of it (well you got it ) get the batt tested under load,it might be just giving the charge when ticking over but when everything is on thats a diff matter.or it could be the alternator bruses working well at low speed and not very well at a bit more speed,if your not happy keep making your self a pest they soon get it done.

Reply to
Chrs

It could also be the battery connections, the symptoms certainly sound like it. Give them a clean with a bit of emery paper (or similar) and then smear with Vaseline (NOT grease). That may well cure it.

Reply to
Keith Willcocks

Two main possibilities are the battery itself and a leaky diode in the alternator. If you can check the electrolyte level in the battery see if there's one cell much lower than the others, that's often a give away. Any auto electricion will do you a proper load test on the battery though. If the alternator has a leaky diode they may/will run a lot hotter than usual and may feel warm even when you come to the car cold. Other stuff to watch for is interior lights or boot lights stuck on or retro-fitted radio/CDs not switching off with the ignition.. If it isn't the battery itself, you will probably have to disconnect it and put an ammeter in series with it to see how much is leaking. If it's running into more than milliamps, you may have to pull fuses till you find the leak.

Djimbo

Reply to
djimbo

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