The total cost in parts was the regulator at about 26 dollars from a Bosch dealer

Item IB200

The time whit splitting the casing probably an hour, but if only the regulator is changed then only about half an hour

The battery voltage is now about 14 VDC when revved
and 13.6 on idle

And a lot easier than I thought
I searched the web to see how it is done and found nothing

So I hope this helps

__________________
2002 BMW 325i Touring
2003 BMW V8 4.4
2002 Land Rover Discovery 2
2002 Land Rover Freelander 1
1980 Lotus Esprit. Sold. Less work for me
1961 Jaguar MK2 Sold. One less project
1962 Land Rover Series 2