BMW Rolls-Royce Chime Coding
BMW Rolls-Royce Chime Coding personalizes a supported vehicle’s display, sound, lighting, or comfort behavior. Availability depends on chassis, equipment, and software level.
— Tekin Code
BMW Rolls-Royce Chime Coding is a personalization option that may already exist in the vehicle’s factory software. It adds no hardware; it only changes behavior supported by the relevant control unit.
What Does This Feature Do?
On supported audio units, the tone used for certain driving and notification sounds can be changed. The safety alert remains active; only its available sound profile changes.
Compatibility Check
This feature is commonly managed through the HU_NBT/HU_NBT EVO/MGU/ASD control-unit family. The fitted unit and software level can vary with production date and equipment.
Available coding choices are determined by the control unit and equipment detected after the vehicle scan, so menu contents can differ between cars.
Preparation Before Coding
• Use a sufficiently charged battery
• Switch on the ignition without starting the engine; on G Series cars activate diagnostic mode by pressing Start three times quickly without the brake or clutch
• Select P, apply the parking brake, and switch off lights, climate control, and other consumers.
Verified Coding Workflow
This guide explains safe preparation, the OBDThink workflow, verification, and recovery for bmw rolls-royce chime coding.
• Confirm that both the vehicle and OBD adapter appear in the app’s support list.
• Connect with OBDThink, select the exact vehicle profile, and create a backup of the current configuration.
• Scan the control units and open the HU_NBT/HU_NBT EVO/MGU/ASD.
• Open the coding option for BMW Rolls-Royce Chime Coding and select the setting offered for the vehicle.
• Select an offered value, start coding, and do not disconnect the phone, adapter, or ignition until completion.
• After the unit restarts, switch off the ignition, lock the car, allow it to sleep for a few minutes, and test again.
Feature: BMW Rolls-Royce Chime Coding
Module family: HU_NBT/HU_NBT EVO/MGU/ASD
Coding path: OBDThink > compatible control unit > feature menu
Backup: create before coding
Checks After Coding
Test the feature while parked. The change is complete if there are no fault messages, lost settings, or unexpected behavior. A control unit restart and temporary warnings during coding can be normal.
Test the feature while parked. The change is complete if there are no fault messages, lost settings, or unexpected behavior. A control unit restart and temporary warnings during coding can be normal.
How to Revert a Problem
• Restore the backup or select the factory value in the same menu. After a failed write, avoid repeated random attempts; check battery voltage, adapter compatibility, and control-unit selection.
Safety and Limitations
Coding does not add missing hardware and results differ between BMWs. Never disable safety warnings, and do not code with a weak battery or the engine running.
Sources
Sources:
OBDThink — uygulama içi uyumluluk ve kodlama ekranları
OBDThink — araç ve kontrol ünitesi uyumluluk listesi
Accessed: 27 July 2026