Aug 12, 2024Body & structure
Roof delaminating and is danger of flying off
NHTSA ODI 11607941
Home · 2018 BMW I3 Rex · Complaints
What 14 owners told NHTSA about the 2018 BMW I3 Rex
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
All (14)Body & structure (3)Fuel system (3)Speed control (3)Steering (3)Airbags (1)Driver assistance (1)Electrical system (1)Tires (1)Transmission & drivetrain (1)
3 of 14 complaints match · Body & structure · clear filters
Apr 16, 2024Body & structure
My car has a problem with the carbon fiber roof panel. In the sun, the clear epoxy of the roof is de laminating from the carbon fiber beneath it. This is a safety issue because as it delaminates the clear epoxy is no longer properly attached to the roof and may fly off and into other vehicles when traveling at highway speeds. This is a well documented issue with these cars on the Reddit forum r/BMWi3.
NHTSA ODI 11583327
Aug 18, 2023Body & structure
The roof is cracking, yellowing and bubbling. I have heard that this is the beginning of roof failure and de-lamination. There have been reports and incidents of others roofs delaminating and having large pieces flying off and hitting other cars.
NHTSA ODI 11539447
Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 22, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 BMW I3 Rex verdict →