BMW SA Code 4NB - Automatic dimming interior and exterior mirrors
Auto-dimming all mirrors
BMW SA Code 4NB - Automatic dimming interior and exterior mirrors
Meaning: Auto-dimming all mirrors
SA Code 4NB is a BMW option code that identifies specific equipment or features installed on a car during production. This code appears in the vehicle's build sheet and can be decoded from the VIN lookup to verify the presence of "Automatic dimming interior and exterior mirrors" on any BMW car.
Understanding BMW SA Code 4NB
BMW uses SA codes (Sonderausstattung, German for "special equipment") to track every option, package, and configuration detail during manufacturing. Code 4NB specifically indicates Auto-dimming all mirrors. This standardized coding system ensures accurate identification of car equipment across all BMW models and years.
How SA Code 4NB Affects Your BMW
When SA code 4NB is present on your car, it means the factory installed Automatic dimming interior and exterior mirrors. This can impact:
- Vehicle value and desirability in the used market
- Specific maintenance or service requirements
- Compatibility with other packages or accessories
- Insurance rates and coverage considerations
- Parts ordering and replacement procedures
Which BMW Models Can Have SA Code 4NB?
SA Code 4NB (Automatic dimming interior and exterior mirrors) is available across various BMW models, though availability may vary by model year and market. Common models that feature this option include:
Sedan Models
- 3 Series (depending on year and configuration)
- 5 Series (widely available option)
- 7 Series (often standard or available)
SUV/SAV Models
- X3 (available on most trim levels)
- X5 (common option or standard)
- X7 (typically available)
Coupe/Convertible Models
- 4 Series (option availability varies)
- 8 Series (often included in packages)
- Z4 (market dependent)
Note: Actual availability depends on specific model year, market, and other equipped options. Use our VIN decoder to verify if your specific car has SA code 4NB.
How to Verify SA Code 4NB on Your BMW
To confirm whether your car has SA code 4NB (Automatic dimming interior and exterior mirrors), follow these steps:
- Locate your VIN: Find the 17-character Vehicle Identification Number on your BMW
- Use our decoder: Enter the VIN in our free decoder tool
- Check SA codes: Review the complete list of SA codes in the results
- Look for 4NB: If present, your car has Automatic dimming interior and exterior mirrors
- Physical verification: Confirm the feature is actually present on your car
Tip: You can also find SA codes on the build sheet, typically located in the spare tire well or service booklet of your BMW.
Service and Maintenance Implications of SA Code 4NB
Having SA code 4NB on your BMW may affect service requirements:
Maintenance Considerations
- Specific parts or fluids required for Automatic dimming interior and exterior mirrors
- Specialized service procedures or tools needed
- Potential software updates or coding requirements
- Impact on service intervals or warranty coverage
Parts and Repairs
When ordering parts or requesting service for features related to SA code 4NB, always provide your complete VIN to ensure compatibility. BMW parts departments use SA codes to identify the exact components needed for your specific configuration.
How SA Code 4NB Affects Vehicle Value
The presence of SA code 4NB (Automatic dimming interior and exterior mirrors) can influence your BMW's market value:
Positive Value Impact
- Desirable feature that enhances comfort, performance, or convenience
- May be rare or sought-after in the used market
- Indicates higher original specification level
- Can differentiate your car from base models
Considerations for Resale
- Document the presence of SA code 4NB in listings
- Highlight Automatic dimming interior and exterior mirrors as a key selling feature
- Provide VIN decoder results to verify equipment
- Maintain any related components properly
Frequently Asked Questions About SA Code 4NB
What exactly does SA code 4NB mean?
SA code 4NB indicates "Automatic dimming interior and exterior mirrors" - specifically: Auto-dimming all mirrors. This code confirms the factory installation of this feature on your BMW.
Can SA code 4NB be added after production?
SA codes represent factory-installed equipment only. While the physical feature might be retrofitted, the SA code won't be added to the vehicle's production records.
How do I know if SA code 4NB is working properly?
Verify the feature described by Automatic dimming interior and exterior mirrors is present and functional on your car. If issues arise, BMW service centers can diagnose using your VIN and SA code information.
Does SA code 4NB require special maintenance?
Maintenance requirements vary by feature. Consult your owner's manual or BMW service advisor for specific care instructions related to Automatic dimming interior and exterior mirrors.
Is SA code 4NB available in all markets?
Availability of SA code 4NB may vary by market, model year, and local regulations. Use our VIN decoder to confirm presence on specific vehicles.
Check Your BMW for SA Code 4NB
Want to know if your BMW has SA code 4NB (Automatic dimming interior and exterior mirrors)? Use our free VIN decoder to instantly reveal all SA codes and packages on your car.
Check Your BMW for SA Code 4NB
Decode your VIN to see all option codes installed on your BMW
Decode Your VINFrequently Asked Questions
What does BMW SA code 4NB mean?
SA code 4NB represents Auto-dimming all mirrors. This is a special equipment code used by BMW to identify this specific option or feature installed at the factory.
Can SA code 4NB be retrofitted?
Whether Automatic dimming interior and exterior mirrors can be retrofitted depends on the specific nature of the equipment. Some SA codes represent hardware that can be added later, while others are integral to the vehicle's production.
How do I check if my BMW has code 4NB?
You can check if your BMW has option code 4NB by decoding your VIN using our free decoder tool. The SA codes will be listed in the decoder results.
Does code 4NB affect the vehicle's value?
Certain SA codes can impact a BMW's value. The presence of 4NB (Auto-dimming all mirrors) may affect the vehicle's desirability depending on buyer preferences.