If your headlight lens breaks, it's necessary to replace the entire housing as the glass itself is not available separately. This headlight assembly is an original replacement part made by CEV, the original supplier to BMW. This is identical to the BMW replacement part in every way. If you have broken your headlight glass and need one of these assembles, then you may also consider one of the available headlight guards to reduce the chance of it happening again, available under the Related Products.
Compare to BMW part number 63 12 8 527 540 (63128527540) and you will find that we offer this part for a good amount less.