Alternator

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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DefTrap
1.8 8v
Posts: 21
Joined: Thu Nov 24, 2011 1:07 am

Alternator

Post by DefTrap » Sun Jul 23, 2017 1:26 pm

Hi

Alternator is making noises that suggest the bearings are shot (It's noisy when driven. I've removed the aux belt and the noise goes away. Spinning the alt. up on a belt driven off my drill and it's noisy again, you can hear the rumbling. So, I think my diagnosis is good).

So - how easy are alt.s to replace? It looks fairly straightforward from what I can see - probably the oil filter needs to come off to access one of the bolts.
Anyone done this and can offer any tips? I prefer to do mech stuff myself but if it's a ballache the garage can do it. :wink:

Other than this the old girl runs pretty well. It's a 2003 406 HDI 90 if that helps.

Thanks

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Captain Jack
3.0 24v
Posts: 3763
Joined: Sun Aug 07, 2005 11:26 am
Location: Langford, Somerset

Re: Alternator

Post by Captain Jack » Mon Jul 24, 2017 9:11 am

Easy. You'll need some long reach ratchets as some bolts are buried but not difficult otherwise. The aux belt is the only thing that needs to come off....
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2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - ????: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp :twisted:)

DefTrap
1.8 8v
Posts: 21
Joined: Thu Nov 24, 2011 1:07 am

Re: Alternator

Post by DefTrap » Mon Jul 24, 2017 2:58 pm

Thanks, I had a poke about and it looked straightforward, not even any seized bolts and I certainly didn't have to remove the oil filter - but its good to know for certain. :)

I've ordered a decent replacement, may rebuild the original, can't be that hard? I see a few rebuild kits on eBay.

DefTrap
1.8 8v
Posts: 21
Joined: Thu Nov 24, 2011 1:07 am

Re: Alternator

Post by DefTrap » Sun Jul 30, 2017 12:39 pm

An eBay 42€ jobby off a crashed 60k km 206 matched up on bosch part #s and went straight on, works lovely. The decrease in noise in with the car running is frankly staggering. I've never fitted a car alt. before so the curious split bushes on the rhs mounting bolts were a bit of a novelty, but other than that no surprises. Tinier hands would have helped locating the bolt on the lower lhs, mind.

With both alt.s off, side-by-side, it was obvious that the old one's bearing were terrible rumbly.

As an aside,the missus picked up a quote from the garage for doing the lot when she was passing - 500€+ all in - 300€ for a new (presumably aftermarket) alt., 100€ for a new belt (seems a bit rich even if it's a genuine peugeot part) and a couple of hours of fitting plus sundries plus tax. I spent about 60€ on parts, already had the belt, plus my time obviously. To be honest that's about as much as want to spend on a car with 175k+ miles.

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