BMW 4 Series Brake Discs Replacement Parts
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A buyer's guide to used BMW 4 Series brake discs
No two brake discss are quite the same across different vehicles, so getting the specifics right matters when you buy used, second hand or a replacement. Answer a few quick questions below and breakers will only quote if they have the exact matching part in stock:
- State whether it's front or rear
Other used BMW 4 Series parts
- Used BMW 4 Series Tyre
- Used BMW 4 Series Wheel Trims
- Used BMW 4 Series Shock Absorber
- Used BMW 4 Series Brake
- Used BMW 4 Series Alternator
- Used BMW 4 Series Cylinder Head
- Used BMW 4 Series ABS Pump
- Used BMW 4 Series Handbrake Lever
- Used BMW 4 Series Rear Tailgate
- Used BMW 4 Series Rear Light
- Used BMW 4 Series Drive Shaft
- Used BMW 4 Series Steering Box
Used brake discs for other BMW models
Fitment questions
Will brake discs from a 2014 BMW 4 Series fit my 2017 4 Series?
The first-generation BMW 4 Series (F32/F33/F36) ran from 2013 to 2020, so both years sit within the same generation, which is encouraging. However, BMW made mid-generation brake specification changes on some variants, so you should confirm the exact disc diameter and bolt pattern with the breaker against both registration numbers before buying.
Do brake discs from a BMW 3 Series fit a BMW 4 Series of the same era?
The F30 3 Series and F32 4 Series share a platform and many running-gear components, so discs from equivalent engine variants often interchange, but this is not guaranteed across every combination. Larger-engined and M Sport variants of both models can carry uprated brakes, so always have the breaker check both registrations against each other before assuming a match.
Does the trim level affect which brake discs fit — for example, does an M Sport 4 Series use different discs to a Sport or SE?
Trim level itself — SE, Sport, M Sport, Luxury — does not determine brake disc fitment on the 4 Series; what matters more is the engine size and whether the car was fitted with the M Sport braking package. M Sport models sometimes carry larger discs than equivalent SE or Sport cars even with the same engine, so ask the breaker to check against your registration rather than trim name alone.
Will first-generation (F32, 2013–2020) brake discs fit the second-generation (G22, 2020 onwards) 4 Series?
No — the second-generation G22 4 Series launched in 2020 with a different platform, suspension geometry, and brake specifications to the outgoing F32 generation. Discs do not cross this generational boundary, so you need parts sourced from a G22 car to match your second-generation 4 Series.
Does engine size matter when sourcing used brake discs for a BMW 4 Series?
Yes, engine size is one of the most important factors — smaller four-cylinder engines such as the 420i and 420d typically use smaller diameter discs than six-cylinder models like the 430i or 435i, and the M4 runs a larger braking system again. Always tell the breaker your exact engine variant so they can match the correct disc diameter and specification.
Are there different brake discs for the front and rear of a BMW 4 Series?
Yes — front and rear brake discs are different sizes and are not interchangeable with each other, so be clear with the breaker about whether you need the nearside or offside axle, and whether you need fronts or rears. Front discs are generally larger than rears on the 4 Series, and some higher-powered variants use vented rear discs where lower-powered models may not, so confirming your registration with the breaker is essential.