BMW i3 & i8 Bolt for Brake Carrier
High-strength brake carrier bolt specifically designed for BMW i3 and i8 models. This is a direct replacement for the original BMW fixing bolt used to secure the brake carrier/caliper bracket.
Key Specifications
- Outside Thread: M12 x 1.5
- Length: 53 mm
- Length under Head: 36 mm
- Thread Length: 36 mm
- Collar Diameter: 30 mm
- Fastening Type: External Torx E18
- Surface: Zinc-lamella coated
- Tensile Strength Grade: 10.9
- Sold In units of 2
Compatibility
Fits the following models:
- BMW i3 (I01) 2013 – 2022 (all variants including i3s)
- BMW i8 (I12) 2014 – 2020 (PHEV xDrive)
- BMW i8 (I15) 2018 – 2020 (PHEV xDrive Cabrio)
Replaces OEM part number: 34 11 6 778 234
Aftermarket Part Number
- Febi -182453
Pro tip: Always replace brake carrier bolts when removing the brake assembly for servicing – they are torque-critical safety components.
| Attributes | |
|---|---|
| Collar Diameter | 30 mm |
| Fastening Type | external – torx |
| Length | 53 mm |
| Length under Head | 36 mm |
| Outside Thread | M12 x 1,5 |
| Surface | zinc-lamella coated |
| Tensile Strength Grade | 10.9 |
| Thread Length | 36 mm |
| Wrench Size (Torx) | E18 |
Replaces OEM part numbers
| Suitable to replace | Reference(s) |
|---|---|
| BMW | 34 11 6 778 234 |
Fits The Following BMW Models
| Model | Submodel |
|---|---|
| i3 (I01) 2013 – 2022 | i3s – 135 kW / 184 hp |
| i3 (I01) 2013 – 2022 | i3 – 75 kW / 102 hp |
| i3 (I01) 2013 – 2022 | i3 – 125 kW / 170 hp |
| i8 (I12) 2014 – 2020 | i8 PHEV xDrive – 275 kW / 374 hp |
| i8 (I12) 2014 – 2020 | i8 PHEV xDrive – 266 kW / 362 hp |
| i8 (I15) 2018 – 2020 | i8 PHEV xDrive Cabrio – 275 kW / 374 hp |
BMW i3 & i8 Brake Carrier Bolt FAQs
Which models does this brake carrier bolt fit?
Fits BMW i3 (2013–2022) and BMW i8 (2014–2020) models. Please provide your vehicle registration number for exact confirmation.
What is the OEM part number it replaces?
It replaces BMW OEM part number 34 11 6 778 234.
Is this a single bolt or a set?
This listing is for a single bolt. You will usually need 2 per brake carrier (4 per axle).
Why is the bolt zinc-lamella coated?
The coating provides excellent corrosion protection, especially important on EVs that use regenerative braking (less heat means less self-cleaning of the brakes).
Do I need special tools to fit it?
Yes – you need a Torx E18 socket/bit for correct installation and proper torque.
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