Hi Pale Rider,
My alternator has hung on and not yet failed so I have not yet replaced it. From what I have seen the easiest way to go is a Bosch alternator part number 0124120007 from an 05 - 07 RT. Try to get one with the pulley attached. You will then need a harness adapter to convert from the Denso plug to the Bosch plug, I am still looking for this as part number 7691724 appears to go the wrong way looking at the harness adapter and pictures of the plug on the Denso alternator, if that is the case then the Bosch plug will have to be purchased and the Denso plug replaced. Any inmate did this with a BMW repair plug. Ian J Hartley posted a great list of which alternators, pulleys and belts worked together on another post which was very helpful in working out which alternator to keep an eye out for. Although the casing on mine was split the pulley rotated fine and the battery still gets a charge, so I thought I would leave it till it did fail. Has yours failed?
Waggy
My alternator has hung on and not yet failed so I have not yet replaced it. From what I have seen the easiest way to go is a Bosch alternator part number 0124120007 from an 05 - 07 RT. Try to get one with the pulley attached. You will then need a harness adapter to convert from the Denso plug to the Bosch plug, I am still looking for this as part number 7691724 appears to go the wrong way looking at the harness adapter and pictures of the plug on the Denso alternator, if that is the case then the Bosch plug will have to be purchased and the Denso plug replaced. Any inmate did this with a BMW repair plug. Ian J Hartley posted a great list of which alternators, pulleys and belts worked together on another post which was very helpful in working out which alternator to keep an eye out for. Although the casing on mine was split the pulley rotated fine and the battery still gets a charge, so I thought I would leave it till it did fail. Has yours failed?
Waggy