Skip to content
0% Finance on your order with Klarna at checkout.
0% Finance on your order with Klarna at checkout.

AUTOID Carbon Fibre Rear Diffuser for BMW M140i/M135i LCI (2015-2019)


Engineered from the outset to deliver on our promise on individuality and quality, our rear diffuser for the M140i (and M135i LCI) is what the car needed from the factory. It sets off the back end of the car and adds real definition to the diffuser area - great to showcase your exhaust system.

The standout feature of the carbon fibre diffuser is the unique V-weave in the centre. This is commonly found on supercars and emphasises quality and precision. 


What's included:

  • 1 x AUTOID Carbon Fibre (CFRP, 2x2 Weave with symmetrical V Twill) Rear Diffuser



Fitting takes approximately 10 minutes. On each end of the OEM diffuser, it's attached underneath by one removable plastic rivet and one 8mm hexagon bolt. Two rivets and two bolts in total. Remove both and unclip the old diffuser - it will pull out. Remove the reflectors from the original diffuser and fit to your new AUTOID Carbon Fibre Diffuser. Begin the process in reverse. 

A video tutorial will be coming soon. 

Alternatively, we can fit onsite. Please contact us at in order to make an appointment. 


Compatible models:

  • BMW M135i LCI (2015+)
  • BMW M140i 



All of our products are covered by our industry leading 2 year "no-questions-asked" warranty. If you see any defects, outside of the realms of usual wear & tear, we'll exchange your items free of charge. Terms and conditions apply. More info here.

*Conditions apply



We quality control every single item that we dispatch from our shop. Many sellers online ship their products straight from overseas, meaning they have not been quality controlled. If you order one of these parts you could receive a part that is damaged, has scratches in the clearcoat, or overall poor carbon fiber construction. By choosing AUTOID, we make the promise to deliver a consistent, quality product that is shipped from our shop in London, not from China or Taiwan. One final benefit is our warranty, as above, this is a minimum of 2 years and is as long as a lifetime on our TRE items.

Customer Reviews

Based on 1 review Write a review