Testing


I was suspect my alternator was on the blink - i.e. would stop charging and suddenly kick back. Even when demand was high it'd often just cut out

I was off to test this one to ensure it works okay
If you’re lucky to have a Voltmeter/Multi-meter

Set to 20v DC, stick the Positive Probe on the Positive terminal
Negative on negative terminal
And watch the voltage

With the engine off Battery voltage should be around
12.3 to 12.7
engine Running - 13.6v to 14v

If these results look good - time to stress test it
Whack as may electrical goodies as you can
Lights - Fans - Rear heaters - fog lights - Full beam (Careful not to blind potential drivers coming up and down your area)
and watch the voltage then
You may see a Drop, this is expected, but nothing below 13v
When you give the engine some more juice - it should quickly jump up to about 13.6v+

If Not then there may be other potential Faults
- This is when you need to post a NEW TOPIC in the Punto section, where many other Punto owners may be able to help you :)-​

Don’t post questions in this guide, as you probably won’t get a quick answer​


I Hope this helps

Time Taken - 1hr MAX
Could be quicker - Yes, probably 30mins if I didn’t struggle getting the bolts to line up

You could potentially do it via the Driver wheel and arch liner out, but that was not needed, its quicker to hover above and do it

Lack of Images - Yes, as its quiet clear on the 2 pictures where everything is
The alternator is exposed Quiet well, so following the guide should be easy