Bilstein B1 Rear Shock/Strut Top Mount Support Bearing for BMW 5 Series F10 2010-2016 (incl xDrive) - Rear Shock Absorber/Damper Upper Mount Top Hat | OE Replacement | Fits Bilstein B4 B6 B8 & OEM Shocks | Part 12-300402

Bilstein 12-300402 Rear Damper Upper Mounting for BMW 5 Series F10

Restore that tight, confidence-inspiring feel at the back of your BMW with this Bilstein B1 rear damper upper support, part number 12-300402 (BILSTEIN-12-300402). Built to OEM standards and engineered for exact fit on the F10 saloon, this rear shock absorber top support cures annoying knocks, creaks and play, bringing back the smooth, quiet ride and precise control you expect from a 5 Series.

Ideal as a direct replacement for tired rear shock upper mountings, it works seamlessly with Bilstein B4, B6 and B8 dampers as well as factory shocks. We have installed these on our own vehicles and for customers, and feedback has been consistently excellent for refinement, stability and longevity.

Why it is a smart upgrade

• Direct-fit rear shock absorber upper mount for F10 saloon models, including xDrive AWD
• Engineered for precise geometry and NVH control to reduce rattle, thump and vibration
• Premium construction and OE-level reliability for daily road use and motorway cruising
• Helps restore rear end composure, traction and comfort on worn-suspension cars
• Compatible with Bilstein B4 B6 B8 and original shocks for hassle-free installation
• Perfect for suspension refreshes when replacing dampers, springs, bump stops or dust boots

Fitting position

Rear axle

Vehicle suitability

BMW 5 Series F10 saloon 2010 to 2016, including xDrive variants:

520 i, 523 i, 528 i, 528 i xDrive, 530 i, 535 i, 535 i xDrive, ActiveHybrid, 550 i, 550 i xDrive, 518 d, 520 d, 520 d xDrive, 525 d, 525 d xDrive, 530 d, 530 d xDrive, 535 d, 535 d xDrive.

What this solves

• Rear end knocks over bumps
• Creaks and groans from the top of the shock absorber
• Unsettled cornering or tramlining due to worn upper mountings
• General looseness and vibration transferred into the cabin

Part identifiers

• Bilstein Part Number: 12-300402 | BILSTEIN-12-300402
• EAN: 4025258840402
• UPC: 651860847894

Fitment check

We verify compatibility before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout so we can confirm this rear damper top support suits your specific F10.

Professional installation

For expert fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk. We recommend inspecting rear springs, bump stops and protection sleeves at the same time for the best result, and replacing mounts in pairs where possible.

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