Understand the Drivetrain Malfunction message only within its documented BMW source context; check safety and exact vehicle applicability.
This text or status belongs to a specific manufacturer-document context. It is not a universal warning, a confirmed failure on your vehicle or permission to drive. Current document scope and on-screen action must be checked for the exact vehicle.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the BMW original: N20/N26/N55 Valvetronic, air-mass and boost faults Source date: 2015-11; research checked: 2026-11-01.
What this message indicates in the source
A BMW message accompanying several possible DME fault combinations; not a Valvetronic-motor or turbo diagnosis.
Record type: manufacturer message. The wording and response can differ with year, equipment and current software or manual edition.
First response and safety boundary
Read the full message and exact BMW codes; unsafe power loss requires stopping safely.
If braking, steering, propulsion, temperature, smoke, fuel or high-voltage conditions are unsafe, stop safely and arrange qualified help. Do not use a generic message match as a roadworthiness test.
Where the document applies
Only the source case and its applicability conditions; not a universal warning definition.
The linked BMW communication records one conditional context. Verify the exact model, year, engine, options, build date, companion codes and current document revision before applying it. A message alone does not identify a part to purchase.
What to save for a shop
- Photograph or copy the exact wording after the vehicle is safely parked.
- Record the model year, powertrain, accompanying warnings and full code scan without clearing it first.
- Ask which source condition and measured test distinguish the possible causes.
Sources and scope
- BMW — N20/N26/N55 Valvetronic, air-mass and boost faults (SI B12 36 15) Document: 2015-11 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.