TSB B110723 — BMW Emissions communication
B110723 is an emissions communication on file with NHTSA for the BMW X5, 2023 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. The return springs on the exhaust camshaft followers (switchable rocker arm) may break.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years B110723 names
Every document filed under B110723
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| B110723 | August 26, 2026 | Emissions communication |
| B110723 | February 20, 2025 | Emissions communication |
What B110723 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB B110723?
B110723 is an emissions communication filed with NHTSA by BMW, covering the BMW X5 across the 2023 model years. NHTSA's summary reads: The return springs on the exhaust camshaft followers (switchable rocker arm) may break.
Which vehicles does B110723 cover?
NHTSA's file names BMW X5 (2023). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB B110723 a recall, and is the repair free?
No. B110723 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of B110723?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under B110723, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under B110723. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.