Used Mercedes-Benz A-Class Brake

The Mercedes-Benz A-Class ran as the W168 generation from 1997 to 2004, then the W169 generation from 2004 to 2012, so a 2005 car and a 2009 car are both W169s and are far more likely to be compatible than parts crossing between those generations. However, engine size can affect brake specification even within the W169, so a 1.5 petrol and a 2.0 diesel may not share the same discs and calipers. Always confirm the exact part against your registration with the breaker before buying.

This question spans the W168-to-W169 generation boundary — the W168 ran from 1997 to 2004 and the W169 from 2004 to 2012, and these are substantially different cars on different platforms. A 2001 car is firmly W168, while a 2004 car could be either the very end of the W168 or the start of the W169 depending on build date. Because fitment across a generation boundary is genuinely uncertain, you should confirm compatibility against both registration numbers directly with the breaker.

Engine size does influence brake specification on the A-Class, so there is a real chance the A200 and A160 carry different disc sizes or caliper pistons even within the same W169 generation. Trim level itself — for example AMG Line badging versus SE or Sport — does not change the brakes, so cosmetic differences in the caliper colour or finish are the only trim-related variation you might notice. Confirm the exact brake part numbers against your registration with the breaker to be sure you are getting the right specification.

No — the W176 (2012 to 2018) and W169 (2004 to 2012) are completely separate generations with different underpinnings, and brake components are not interchangeable between them. Always match parts to the correct generation and confirm against your registration with the breaker.

The W176 A-Class received a facelift in 2015, and while many running-gear parts carry over through a facelift, whether the brake specification changed mid-generation for your particular engine variant is something you should confirm with the breaker against your registration. Engine size differences across the W176 range — from the A160 up to the A250 — are the more important variable for brake sizing. Give the breaker both the year and the engine code to be certain.

Yes, it matters significantly — the NS (nearside, left) and OS (offside, right) calipers are mirror images of each other and are not interchangeable. When contacting a breaker, always state clearly which side you need alongside the year, generation, and engine size of your A-Class. Confirming against your registration number gives the breaker the best chance of supplying the correct part.