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The Bosch 12V Alternator Voltage Regulator (Part No. 1986 AE0 045) is a precision-engineered component designed to ensure stable voltage output in BMW vehicles. Compatible with a wide range of BMW models and engine variants, this regulator combines robust construction with advanced features to enhance electrical system reliability.
| Feature | Specification | Benefit |
|---|---|---|
| Material | Aluminum housing with corrosion-resistant coating | With aluminum, you can achieve efficient heat dissipation and long-term durability. |
| Voltage Regulation | 12V system compatibility, ±0.5V accuracy | Ensures optimal charging for batteries and electrical components. |
| Compatibility | Universal fit for BMW models: 323i, Z4, X5, 5 Series, 1 Series, etc. | With universal design, you can install seamlessly across multiple BMW vehicles. |
| Diode Bridge | Built-in reverse current protection | Prevents electrical damage from reverse current flow in harsh conditions. |
| Environmental Resistance | IP67-rated sealing (resists dust/water ingress) | With IP67 protection, you can operate reliably in extreme environments. |
Adjustable parameters include:
This regulator is the backbone of your BMW’s electrical system. Whether you’re maintaining a classic 323i or upgrading a high-performance Z4 Roadster, Bosch’s 1986 AE0 045 ensures stable power delivery under all driving conditions.
| Parameter | Base Model | Advanced Model | Pro Model |
|---|---|---|---|
| Voltage Stability | ±0.5V accuracy | ±0.3V accuracy (+40%) | ±0.2V accuracy (+60%) |
| Operating Temp Range | -40°C to +125°C | -50°C to +150°C | -60°C to +180°C |
| Diode Efficiency | 95% | 98% (+3%) | 99.5% (+4.5%) |
Technical Breakthroughs:
Version Selection Guide:
Example: The Pro Model’s expanded -60°C to +180°C range enables safe operation in Arctic or desert climates, paired with its 99.5% diode efficiency to minimize energy loss during prolonged use.
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