Alternator amp e86

[Faz]

Hi all

If anyone can advise me I'd be grateful

I have been told my alternator is failing but each place I'm calling is asking what ampage it is , either 140,150 or 155. Does anyone know what it would be for an e86, 2006 Z4?

Also would now be a good time to get the valve cover gasket and oil filter housing gasket replaced, mileage approaching 110k but I can't see any obvious leak.

Thanks
Faz

 

[BumpyZ4]

It looks like it should be the 155 amp.

https://www.realoem.com/bmw/enUS/showparts?id=DU52-EUR-06-2006-E86-BMW-Z4_30si&diagId=12_1198

 

[Zedebee]

RealOEM shows two types 140/150 and 155. If the pictures are anything to go by, my 2007 Coupe (black top engine) has the 140/150. The two different types might be to do with the silver top vs black top engine or they could be to with US spec vs European spec.

Sorry, that’s probably not very helpful.

 

[Faz]

Thanks for the replies! Sorry of it's dumb but is there somewhere on the existing one where it will say what it is?