U0184 on BMW
Lost Communication With Radio
U0184 on BMW vehicles indicates lost communication with radio. Au7o has documented this code across 1 BMW model — most commonly on 7 Series. This network code means a module stopped receiving expected communication messages from the radio/audio module over the vehicle's data bus. When the radio module goes offline or its bus connection fails, this code is logged. On some vehicles the audio module also acts as a network gateway, so its loss can trigger several related communication codes. Symptoms are typically a dead or unresponsive radio/infotainment system; it does not affect drivability. Typical repair costs on BMW range from $500 to $2,500, depending on the specific model and root cause.
Common Causes of U0184
- •Loss of power or ground to the radio/audio module
- •Blown radio fuse
- •Wiring or connector fault on the communication bus
- •Faulty radio/audio control module
- •Corroded or loose module connector
- •Network/bus wiring short affecting multiple modules
U0184 on BMW by Model
BMW 7 Series(1 issue)
- iDrive Head Unit and CIC/NBT Module Failures2009-2022
The 7 Series iDrive infotainment system experiences head unit failures across generations, with the CIC (Car Information Computer) in F01 models and NBT (Next Big Thing) in G11 models being particularly problematic. Symptoms include screen blackouts, random reboots, navigation freezing, and loss of Bluetooth connectivity. The issues are often caused by failing hard drives (CIC) or eMMC storage degradation (NBT) within the head unit.
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View U0184 across all makes →Frequently Asked Questions
What does U0184 mean on BMW?▼
U0184 stands for "Lost Communication With Radio." This network code means a module stopped receiving expected communication messages from the radio/audio module over the vehicle's data bus. When the radio module goes offline or its bus connection fails, this code is logged. On some vehicles the audio module also acts as a network gateway, so its loss can trigger several related communication codes. Symptoms are typically a dead or unresponsive radio/infotainment system; it does not affect drivability. On BMW specifically, this code is documented across 1 model.
What causes U0184 on BMW vehicles?▼
Common causes on BMW: Loss of power or ground to the radio/audio module, Blown radio fuse, Wiring or connector fault on the communication bus, Faulty radio/audio control module, Corroded or loose module connector. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0184 on a BMW?▼
Repair costs on BMW range from $500 to $2,500, depending on the specific model and root cause.
Which BMW models have U0184 documented?▼
Au7o has documented U0184 on 1 BMW model: 7 Series.