Regarding OTA
The most detailed change log released to date comes from an internal Mazda document that has been shared by several Mazda 6e owners. It covers a large number of ECUs and is considerably more comprehensive than the information Mazda normally publishes for customers.
Here are the key changes included in OS 1.00.07BD:
Adaptive Cruise Control (ACC) – 5 Improvements
Cornering
- The vehicle no longer brakes as early when approaching corners.
- Steering and speed control rely more heavily on camera input rather than map data.
Cornering Speed
- Higher and more natural speeds through corners.
- Less unnecessary braking.
Resume Function
- Pressing the RES button now resumes the speed displayed in the instrument cluster.
- Previously, the system could resume a different speed.
Following Distance Control
- Improved response when adjusting the distance to the vehicle ahead.
ISA (Intelligent Speed Assist)
- Better integration between speed limit recognition and ACC.
- Faster and more logical speed adjustments.
Body Control & Comfort (BDC)
Power Windows
- Improved anti-pinch protection.
- Fewer cases of the windows stopping halfway.
Climate Control
One of the most significant improvements.
Mazda has changed:
- The PTC heater output from approximately 34% to 75% under certain operating conditions.
- A new temperature regulation algorithm.
Results:
- Faster cabin warm-up.
- A warmer cabin during winter.
- More stable interior temperatures.
Start-up Message
The message:
“Press brake pedal to start”
and the accompanying voice prompt are now removed after the vehicle is unlocked.
TPMS
- More accurate tire pressure monitoring.
- Fewer false warnings when the tires become warm.
Lighting
- The daytime running lights and low beams can no longer be accidentally switched off using the steering wheel controls while driving.
Battery Management System (BMS)
Mazda has implemented several improvements.
Battery Diagnostics
- New diagnostic thresholds.
- Fault codes are automatically cleared once the issue has been resolved.
SOC (State of Charge)
- More accurate calibration.
- More precise battery percentage readings.
SOH (State of Health)
- New calculation model.
- More accurate long-term battery health estimation.
Driving Range
- Improved remaining range calculation.
Charging
As the battery approaches 100% charge, the charging current is reduced in a smoother and more controlled manner to minimize battery stress. However, the maximum DC fast-charging power remains unchanged.
Infotainment
Users report:
- Faster system startup.
- Fewer unexpected restarts.
- Improved Bluetooth stability.
- More reliable wireless Apple CarPlay.
- More reliable Android Auto.
- Faster touchscreen response.
- Fewer system freezes.
- Improved communication with the MyMazda app.
Navigation
Reported improvements include:
- More stable route calculation.
- Improved real-time traffic information.
- Better speed limit sign recognition.
- Improved integration between navigation and ACC.
What the Update Does Not Change
The following features appear to remain unchanged:
- Maximum DC fast-charging power.
- WLTP driving range.
- Motor output.
- Battery capacity.
- Base level of regenerative braking.
- One Pedal Drive behavior.
My Assessment
This is by far the most significant software update for the Mazda 6e since its launch. The focus is not on introducing new features but on improving the vehicle’s overall day-to-day driving experience:
- ★★★★★ Adaptive Cruise Control (ACC) and driver assistance systems.
- ★★★★★ Climate control and winter comfort.
- ★★★★☆ Battery management and range estimation.
- ★★★★☆ Infotainment and system stability.
- ★★★☆☆ Navigation.
See the complete internal change log, which includes approximately 40–50 individual fixes across all major control units: ACC, BMS, VCU, BCM, ADAS, infotainment, charging, lighting, and others, in a detailed table.
Here is a more complete table of the internal change log for Mazda 6e OS 1.00.07BD. Please note that parts of this list originate from a leaked Mazda service document shared by users, so not everything has been officially documented by Mazda, although several owners and service workshops have confirmed the content. | Control Unit | Issue Before the Update | Change in 1.00.07BD
| |—|—|—| | ACC | Braked too aggressively before corners | Uses camera input more than map data | | ACC | Cornering speed too low | Higher and more natural target speed | | ACC | Resume sometimes restored the wrong speed | Resume now uses the displayed speed | | ACC | Following-distance button occasionally unresponsive | Improved button response | | ACC + ISA | Speed adaptation was sometimes inaccurate | Optimized interaction between ISA and ACC | | Power Windows | Windows could stop halfway | New anti-pinch control logic | | Climate Control | Cabin did not warm up sufficiently | PTC heater output increased from about 34% to 75% under certain conditions | | Climate Control | Inconsistent cabin temperature | New temperature regulation algorithm | | Start System | Voice prompt “Press brake pedal to start” | Voice prompt and message removed | | TPMS | False tire-pressure warnings | Improved filtering and calibration | | Lighting | Accidental light mode changes | More stable lighting control logic | | BMS | Battery percentage less accurate | New State of Charge (SoC) calibration | | BMS | Battery health estimate less accurate | New State of Health (SoH) algorithm | | BMS | Range estimation fluctuated | Improved range calculation | | BMS | Diagnostics | Updated fault codes and self-diagnostics | | Charging | Uneven charging taper near 100% | Smoother charging current regulation | | Infotainment | Slow startup | Faster boot time | | Infotainment | Occasional system reboots | Stability improvements | | Bluetooth | Connection issues | Improved connection stability | | Apple CarPlay | Occasional wireless disconnects | More stable wireless connection | | Android Auto | Occasional wireless disconnects | More stable wireless connection | | Touchscreen | Input lag | Faster touch response | | MyMazda App | Communication issues | More reliable synchronization | | Navigation | Slower route calculation | Optimized route planning | | Navigation | Speed sign recognition | Improved recognition accuracy | | ADAS | Occasional warning messages | Fewer false alerts and improved stability | What the update still does not change: – Maximum DC fast-charging power remains unchanged. – Battery capacity and battery chemistry remain unchanged. – Motor power and vehicle performance remain unchanged. – Regenerative braking and One Pedal Drive behavior remain essentially the same. What may arrive in the next OTA update (likely autumn 2026): – Manual battery preconditioning before DC fast charging. – Automatic battery preconditioning when a DC fast charger is selected as the navigation destination. – Additional regenerative braking settings. – Improved energy planning within the navigation system. – More customization options for the driver assistance systems. Based on current reports, the most noticeable improvements in version 1.00.07BD are the adaptive cruise control (ACC), climate control, and the overall stability of the infotainment system.