By David Bledsoe 
Understanding BMW Side Mirror Issues
Potential Causes of Mirror Malfunction
When BMW owners find their mirrors not folding when locking their car, several issues may be at play. One primary cause could be problems with the third-party auto-fold module or loose wires (MyCarForum). Additionally, a malfunctioning Local Interconnect Network (LIN) module could cause the exterior mirrors to switch controllers, leading to folding issues (CarComplaints).
Owners have also reported operational issues where the motor constantly runs, but the mirror fails to fold or unfold (MyCarForum). An issued TSB (Technical Service Bulletin) by BMW in 2020 addressed this problem, pinpointing semiconductor supply issues affecting the LIN module in the exterior mirrors.
Another possible cause is related to the car’s security system. Users may find that while the doors lock, the vehicle’s alarm system does not activate, and the side mirrors fail to fold (Car Complaints).
User Experiences with Mirror Problems
BMW owners have shared varied experiences related to side mirror issues. For instance, a user reported that their driver-side mirror would not fold or unfold despite the motor being active, highlighting a mechanical fault beyond simple electrical or software issues.
Another user noted a frustrating intermittent issue where their side mirrors would sometimes fold, but fail on other occasions, often coinciding with weather changes or after a car wash. This inconsistency points to possible external factors, such as moisture affecting the mirror’s electronic components.
Table of Common Reports
| Potential Cause | User Report |
|---|---|
| Faulty Auto-Fold Module | Suspected third-party module issues (MyCarForum) |
| Loose Wires | Users experiencing intermittent issues post car wash |
| LIN Module Semiconductor Issues | TSB addressing folding problems (CarComplaints) |
| Alarm System Malfunction | Alarm system failing to secure vehicle (Car Complaints) |
For more specific cases related to BMW’s models, check out our reasons to not buy a BMW X7 and learn about other common electrical problems in Various BMW Models. Additionally, explore why the BMW key fob will not lock in slot together to understand possible related issues.
Technical Service Bulletins (TSBs) by BMW
BMW has issued several Technical Service Bulletins (TSBs) to address common problems faced by their vehicle owners. TSBs provide diagnostic and repair instructions to correct known issues, ensuring optimal functionality. Here, we explore three notable TSBs related to side mirror issues and other common problems.
TSB on Exterior Mirror Controller Switch
In 2023, BMW released a TSB addressing a specific issue where the Local Interconnect Network (LIN) module in either of the exterior mirrors might switch to another controller. This switch can cause the side mirrors to malfunction, leading them not to fold when locking the vehicle. BMW owners experiencing this issue may notice their mirrors behaving unpredictably or not folding at all.
Table of Reported Issues
| Model Year | Issue Description | Resolution |
|---|---|---|
| 2020 | LIN module switch in exterior mirrors | Replace or reconfigure LIN module |
This TSB aims to guide technicians on diagnosing and rectifying the LIN module problem to ensure seamless mirror functioning.
TSB on Comfort Access and Engine Start Issues
Another significant TSB issued in 2023 involves problems with comfort access and engine start. Owners of affected BMW models might face difficulties in locking or unlocking their vehicles via comfort access, starting the engine, or using the key fob.
The TSB outlines the following issues and solutions:
- Comfort Access Problems: Vehicle not responding to the proximity sensor.
- Engine Start Issues: Inability to start the vehicle, even when placing the key fob near the steering column.
For more details on similar issues, refer to our articles on bmw comfort access not working and bmw key fob will not lock in slot together.
TSB on Steering Column Position Storage
BMW has also addressed problems related to the non-permanent storage of saved steering column positions. Specifically, model year 2020 X7 owners reported that vertical and horizontal positions of the steering column were not stored long-term.
The TSB issued for this problem details corrective steps, including software updates and hardware inspections. This ensures that once a driver saves their preferred steering column settings, these preferences will remain until manually changed.
Table of Affected Models
| Model Year | Reported Problem | Fix |
|---|---|---|
| 2020 | Steering column positions not stored | Software update, hardware inspection |
For more information on TSBs related to BMW, explore topics like bmw remote start not working and bmw screen not turning on.
Quick Fix Summary
These TSBs provide crucial insights into resolving common issues faced by BMW owners, including the problem of bmw mirrors not folding when locking. Addressing these TSBs promptly ensures your vehicle operates smoothly and efficiently. For more detailed solutions, visit our specific guides for each problem.
By staying informed about these bulletins and taking necessary actions, BMW owners can maintain their vehicle’s performance and reliability. Always consult your local dealer or service provider for professional guidance tailored to your vehicle’s needs.
Specific BMW Models and Issues
The BMW lineup, renowned for its luxury and advanced technology, occasionally faces issues that can affect the driving experience. In particular, problems related to side mirrors not folding when locking the vehicle have been reported by some BMW owners. This section will delve into specific BMW models and their related issues, with a case study on the X7 model as well as a broader look at common electrical problems across various BMW models.
Case Study: X7 Model Problems
The BMW X7, a flagship SUV, has had a series of issues impacting the functionality of its side mirrors among other features. In 2023, BMW issued a Technical Service Bulletin (TSB) concerning the Local Interconnect Network module. The issue arises when this module, located in the exterior mirrors, is switched to another controller, leading to malfunction.
Additionally, BMW released a TSB addressing problems where the vehicle cannot be opened or closed using comfort access. Here are some of the notable TSBs related to the X7 model’s mirror and electrical issues:
| Issue | Description | TSB Year |
|---|---|---|
| Local Interconnect Network (LIN) Module Switch | Exterior mirror control switch causes mirrors to malfunction | 2023 |
| Comfort Access Issues | Vehicle cannot be locked/unlocked using comfort access | 2023 |
| Steering Column Position Storage | Vertical and horizontal steering column positions not saved | 2020 |
| Lane Departure Warning (LDW) System | Steering intervention considered too strong | 2020 |
Some owners have reported that the vehicle may not start when placing the key against the steering column, highlighting the complexities tied to comfort access and ignition mechanisms. For further reading on common issues in the X7, see reasons to not buy a BMW X7.
Common Electrical Problems in Various BMW Models
Several electrical issues affect models across the BMW range, often impacting features such as mirror folding, comfort access, and ignition. These problems can stem from several sources including software updates, hardware failures, and component malfunctions. Here is a summary of common electrical issues reported across different BMW models:
- Mirror Folding Problems: Mirrors not folding when locking can result from faulty motor actuators or control switches. These issues are prevalent in newer models equipped with advanced comfort access systems (bmw comfort access not working).
- Key Fob and Ignition Issues: Problems with locking/unlocking the vehicle and starting the engine often relate to key fob malfunctions or signal interference.
- Comfort Access and Remote Start: Owners report issues with the comfort access system not responding, which affects the ability to lock/unlock and start the car remotely (bmw remote start not working).
- Steering Column and Seat Memory: Problems saving positions for the steering column and seats can be frustrating, often requiring recalibration or software tweaking.
Table: Common Electrical Issues in Various BMW Models
| Model | Issue | Description |
|---|---|---|
| X7 | Mirror Folding | LIN module switching causing malfunction |
| X5 | Comfort Access | Difficulty locking/unlocking vehicle |
| 3 Series | Engine Start | Problems with key fob ignition signals |
| 5 Series | Seat Memory | Failing to save custom positions |
For additional insights into specific problems by model and other electrical issues, check out BMW key fob not working and BMW X3 wireless charging not working.
Understanding these issues helps in diagnosing and finding efficient solutions for BMW owners encountering problems such as mirrors not folding when locking their vehicles. For more detailed explanations and fixes, explore our articles on BMW remote start not working and BMW comfort access not working.