BMW 1 Series Brake Discs Replacement Parts

The E87/E81 generation ran from 2004 to 2011, while the F20/F21 generation started in 2011, so a 2007 and a 2012 car are from entirely different generations with different running gear — the discs are not interchangeable between them. Stick to parts from the same generation as your car and confirm the exact size with the breaker against your registration, as disc dimensions also varied with engine size within each generation.

Yes — larger-engined variants such as the 2.0-litre diesel and petrols, and especially the M135i and M140i performance models, were typically fitted with larger brake discs than smaller-engined versions like the 116i or 116d. When sourcing a used disc, always tell the breaker your exact engine size and model code so they can match the correct diameter and thickness rather than just the generation.

The E87 1 Series received a facelift in 2007, but the underlying platform and suspension geometry remained the same, so brake discs from pre-facelift and post-facelift E87 models of the same engine variant generally share fitment. That said, confirm this with the breaker against your registration, as mid-generation brake upgrades are possible and should be checked rather than assumed.

Trim level — whether SE, Sport, or M Sport — does not by itself change the brake disc specification on the BMW 1 Series; what matters is the generation and engine size. An M Sport disc from a 118d should match an SE 118d of the same generation, though the M Sport car may have had different calipers cosmetically, so check the overall package with the breaker against your registration to be certain.

No — front and rear brake discs are different sizes and are not interchangeable; always specify front or rear when contacting a breaker. The 1 Series is rear-wheel drive, so the rear discs are driven axle discs and must be the correct fitment for your engine variant and generation.

The F20 1 Series was facelifted in 2015, with the pre-facelift running from 2011 to 2015, and while the platform is shared, whether a post-facelift disc crosses directly to a pre-facelift car of the same engine variant is not something that should be assumed. Confirm this directly with the breaker against both registrations, as mid-generation brake specification changes are possible and the breaker can check part numbers to be sure.