There are 1 owner-reported lighting complaints for the 2005 BMW Z4in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The front headlight wiring harness is flaking off and could cause a short and lose your lights at night and cause a accident. there has been no recall and it's happening to all of the bmw cars that had this environmentally friendly insulation. It is a hazard because you can lose both headlights without notice and have a accident. It has been going on for years according to several mechanics I've spoken too. It also is a huge expense to replace.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026