Roadster S Alternator - In search of!

MefiEcosse · Post by **MefiEcosse** » Mon May 22, 2023 8:28 am

Anyone know the part number for Roadster S alternator?

PerryGunn · Post by **PerryGunn** » Mon May 22, 2023 11:28 am

From the parts catalogue - if you don't have a copy send me a PM with your email address and I'll send you a PDF version

You may find it cheaper/easier/faster to remove it and get it reconditioned.

: Alp_12.jpg (89.08 KiB) Viewed 207 times

MefiEcosse · Post by **MefiEcosse** » Mon May 22, 2023 12:45 pm

Thanks Perry
I managed to find the parts catalogue earlier.
Seems its not going to be easy to get one so your suggestion might be best option.

Gee · Post by **Gee** » Mon May 22, 2023 8:09 pm

Here's a picture if it helps. I had my one refurbished a few years back.

MefiEcosse · Post by **MefiEcosse** » Wed May 24, 2023 11:11 am

Thanks folks - Confirmed my alternator is faulty so need to try and locate one if possible.

If anyone knows that would be great.

Looks like will need to be refurb though.

Did find online a bit of debate if it was same unit as Alpina B3? Anyone able to confirm?

Gee · Post by **Gee** » Wed May 24, 2023 8:06 pm

From memory (and it was a while ago) I could only source the "B3" alternator outwith the dealer network and whilst it appeared correct, when I got it, it had a different connector. This is why I went down the refurb route.

Picture of the "B3" one attached. I imagine the correct RS one can only be sourced from BMW if you want to buy new.

MefiEcosse · Post by **MefiEcosse** » Thu May 25, 2023 7:03 am

Gee wrote: ↑Wed May 24, 2023 8:06 pm From memory (and it was a while ago) I could only source the "B3" alternator outwith the dealer network and whilst it appeared correct, when I got it, it had a different connector. This is why I went down the refurb route.

Picture of the "B3" one attached. I imagine the correct RS one can only be sourced from BMW if you want to buy new.

Thanks, I found a couple of companies selling the B3 one with same part number as ours.
Saves me making same mistake.

Spoke to BMW yesterday, who were pretty hopeless.
Once I had the usual battle of them telling me my car was an E46, then a 3.0i, then me telling them they need to use prefix 9147 to search Alpina parts we eventually got a price of £905.
None in stock, can't give delivery date.

Refurb it is.

PerryGunn · Post by **PerryGunn** » Thu May 25, 2023 10:09 am

MefiEcosse wrote: ↑Thu May 25, 2023 7:03 am Thanks, I found a couple of companies selling the B3 one with same part number as ours.
Saves me making same mistake.
Spoke to BMW yesterday, who were pretty hopeless.
Once I had the usual battle of them telling me my car was an E46, then a 3.0i, then me telling them they need to use prefix 9147 to search Alpina parts we eventually got a price of £905.
None in stock, can't give delivery date.
Refurb it is.

Refurbishment of something like an alternator isn't a 'bad thing', after a decent refurb it should look and perform like new.

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