Bilstein B1 12-303120 Rear Left Shock/Strut Top Mount for BMW i3 (I01) 2013-on - LH Nearside Damper Upper Support Bearing | Rear Shock Absorber/Strut Top Bearing Replacement | Fits EV & REx incl i3s

Bilstein 12-303120 Rear Left Damper Mount for BMW i3 I01

Restore tight, quiet suspension performance on your BMW i3 with this genuine Bilstein B1 rear nearside top mount. Part number 12-303120 is a direct replacement for the left-hand rear shock top bearing on the I01 platform, covering i3 Electric, i3 Range Extender REx, i3s Electric and i3s REx from 2013 onwards. If your car has rear end knocks, clunks or vibration over bumps, replacing the worn upper mount brings back the crisp ride quality and stability BMW intended.

We fit these regularly at MJ Modifications and customer feedback is consistently excellent for refinement, fit and longevity. Expect OE-level precision, secure damper location and reduced NVH once installed. Ideal whether you are refreshing tired factory hardware or pairing with Bilstein shock absorbers.

Highlights

• Left-hand rear upper shock mount for BMW i3 I01 chassis
• OE spec construction for durability and correct geometry
• Helps eliminate play, creaks and rear axle harshness
• Designed to work with original BMW dampers and Bilstein replacements
• Accurate fitment for EV and Range Extender variants including i3s

Fitment position

Rear axle left | LHS | Nearside rear

Vehicle compatibility

• BMW i3 I01 08/2013 onward
  • Electric
  • Range Extender REx
  • i3s Electric
  • i3s Range Extender REx

Looking for the opposite side. The matching rear right mount is Bilstein 12-303113.

What this part does

This rear upper mounting assembly supports the shock absorber and isolates road noise from the cabin. Replacing a tired bearing or perished mount restores rear end compliance, aids traction over uneven surfaces and prevents premature damper wear.

Why choose Bilstein B1

• Trusted OE supplier quality
• Exact-fit hardware for straightforward installation
• Consistent performance in all climates
• Proven reliability on customer vehicles

Professional fitting

Need installation. MJ Modifications in Warwickshire can help. Request a fitting quote at info@mjmodifications.co.uk.

Compatibility check

We verify fitment before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout to ensure the correct part for your i3.

Part details

• Part number: 12-303120 | BILSTEIN-12-303120
• Manufacturer: Bilstein
• EAN: 4025258852177
• UPC: 651860859897
• Range: Bilstein B1 accessories

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