E36 m3 lighting help please

[mtorque6]

Hi everybody can anybody tell me if the corner lights on my '99 m3 require a single element or a dual element bulb? The parts I am looking at are here at BMW Parts and BMW Accessories | Bavarian Autosport and the part #19227 and #19228. I only need to know which ones to get, the single element or the dual element. Thank you.

[Jack Dabsy]

If you're talking about the rears, then just have a look at the holders... If there are two prongs in the base of the socket then its dual filament bulb (Stop/Tail) ! BMW rears are generally grounded via the cluster...