BMW 4 Series Rear Bumper: Fitment, Sensors & Common Damage
A genuinely useful finding: a towbar fitted with a vehicle-specific kit still required rear sensors to be manually switched off every time something was towed — worth asking whether automatic detection can be coded in.
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BMW 4 Series Rear Bumper: OEM Part Number
BMW 4 Series Rear Bumper: More Than Just a Plastic Panel
It's rarely a plain plastic panel on the BMW 4 Series: the rear bumper usually integrates parking sensors and a reversing camera housing, sometimes exhaust trim too, so a seemingly minor kerb scrape can end up needing more than a simple like-for-like swap.
BMW 4 Series Rear Bumper: What It Does
Beyond absorbing minor impacts, the rear bumper on higher trims of the 4 Series often houses parking sensors, a reversing camera, and sometimes integrated exhaust finishers. A bumper that looks compatible can still be missing the correct cutouts or wiring provisions for your specific trim's equipment.
BMW 4 Series Rear Bumper: Generations & Colour
| Standard trims | Alpine White (no-cost), Jet Black, Black Sapphire, Mineral Grey |
|---|---|
| M4 | Isle of Man Green and Toronto Red are popular performance-trim shades; the rear bumper is also styled differently on this trim |
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A Genuinely Useful Finding Worth Knowing About Towbars — BMW 4 Series Rear Bumper
If a towbar has been fitted and the rear parking sensors now sound constantly whenever something is attached, this is genuinely worth knowing: one documented case saw exactly this after a vehicle-specific towbar kit was fitted, requiring the sensors to be manually switched off using the button beside the gear selector every time something was towed. It's genuinely worth knowing that coding the car to automatically detect when the towbar's electrical socket is connected, switching off the rear sensors without manual intervention, is something worth asking a specialist about, since this automatic detection isn't always included by default even with a proper, vehicle-specific kit.
It's also genuinely worth knowing that not all aftermarket towbar electrics kits behave the same way — one documented case saw the parking sensors correctly switch off, but the rear camera remained active regardless.
BMW 4 Series Rear Bumper: Common Damage, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Rear Bumper Guide for common damage types, confirming fitment (body style and sensor equipment matter here), and OEM vs aftermarket guidance.
More BMW Rear Bumper
The same part, covered across other BMW models.