Home › Service bulletins › SIB 84 08 18

SIB 84 08 18: Head unit high 2 reset while bluetooth is connected

Head unit high 2 reset while bluetooth is connected on BMW G01/G11/G12/G30 and other models (2011–2018); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10143570 · May 2018 · also written SI B84 08 18, B840818

What it covers

A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.

HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 84 08 18
Also written: SI B84 08 18, B840818, 84 08 18, SIB-84-08-18, SI B840818
NHTSA ID10138411, 10143570 (revisions)
Document IDs filedB840818
TypeService bulletin
Date (first filed Apr 2018)
Models228i, 230i, 320i, 328d, 328i, 330e, 330i, 335i, 340i, 428i, 430i, 435i, 440i, 530e, 530i, 540d, 540i, 640i, 650i, 740LE, 740LI, 750LI, I3, I8, M2, M235i, M240i, M3, M4, M550i, M6, M760LI, X3, X4, X5, X5 M, X6, X6 M
Model years2011–2018
ChassisG01, G11, G12, G30, G31, G32, E90, E92, E93, F06, F12, F13, F15, F16, F22, F23, F25, F26, F30, F31, F32, F33, F34, F36, F80, F82, F83, F85, F86, F87, I01, I12, I15
EnginesB38, B46/B48, B47, B57, B58, Electric, N20, N47, N52, N55, N57, N63, N74, S55, S63, W20
Component (NHTSA)Electrical System
Electrical System › Software
Equipment
Equipment › Electrical

Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.

Related bulletins

  • SIB 01 21 18 Oil consumption service information Oil consumption service information on BMW E60/E70/E71/E72 and other models (2007–2018); BMW explains the cause and the approved repair. Service bulletin · Jun 2021
  • SIB 11 02 08 VANOS reduced power VANOS reduced power on BMW E46/E60/E61/E70 and other models (2006–2015); BMW explains the cause and the approved repair. Service bulletin · Sep 2020
  • SIB 17 03 20 Coolant line leak Coolant line leak on BMW G01/G02/G05/G07 and other models (2018–2020); BMW gives an inspection and repair procedure. Service bulletin · May 2020
  • SIB 11 11 18 VANOS replacement VANOS replacement on BMW G11/G12 models (2016–2017); the fix is replacing the affected part. Service bulletin · Jan 2019
  • SIB 01 05 20 EGR cooler warranty extension EGR cooler warranty extension on B46/B48/B47/B58/N20/N47/N55/N57/N63 engines (2014–2018); BMW extended the warranty on this part for eligible cars. Warranty extension · Aug 2025
  • SIB 16 01 24 Engine no-start Engine no-start on BMW G05/G06/G07/G60 and other models (2023–2025); BMW repairs affected cars free under a service campaign. Service campaign · Nov 2025

Before you pay: check your VIN for recalls

Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.

Check recalls by VIN →

Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.