Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Alternators - BOSCH: Description
Bosch alternators are conventional 3 phase, self rectifying type alternators. Nine rectifier diodes are connected to stator windings (3 to each phase lead). Diodes change alternator A.C. voltages to D.C. voltages coming out of the "B+" and the "D +" terminals of the alternator.
| Model | Volts/Amps | (1)Bosch Part No. | ||||||
|---|---|---|---|---|---|---|---|---|
| Audi | ||||||||
| 4000 | ||||||||
| Standard | 14/55 | 469 520 | ||||||
| Heavy Duty | 14/65 | 489 713 | ||||||
| California | 14/35 | 469 502 | ||||||
| 5000 | ||||||||
| Gasoline & Diesel | 14/35 | 469 502 | ||||||
| Gasoline Only | 14/55 | 489 653 | ||||||
| Gasoline & Diesel | 14/65 | 489 613 | ||||||
| All With A/C | 14/90 | 489 514 | ||||||
| BMW | ||||||||
| 320i | 14/65 | 489 718 | ||||||
| 528i, 633CSi, 733i | 14/65 | 489 619 | ||||||
| Fiat | ||||||||
| Brava & Spider | ||||||||
| Standard | 14/55 | 489 743 | ||||||
| With A/C | 14/65 | 489 824 | ||||||
| Mercedes-Benz | ||||||||
| 240D | 14/55 | 489 556 | ||||||
| 280 Series | 14/35 | 489 751 | ||||||
| 300 Series | 14/55 | 489 527 | ||||||
| 300 Turbo | 14/55 | 489 683 | ||||||
| 380 Series | 14/70 | 489 898 | ||||||
| Porsche 924 | 14/75 | 469 502 | ||||||
| Saab | ||||||||
| 99 | 14/55 | 489 783 | ||||||
| 900 | 14/55 | 489 735 | ||||||
| Volkswagen | ||||||||
| Dasher | ||||||||
| Gasoline | 14/55 | 489 622 | ||||||
| Diesel | 14/55 | 489 520 | ||||||
| Calif. & All With A/C | 14/65 | 489 713 | ||||||
| Jetta, Rabbit & Scirocco | ||||||||
| Standard | 14/45 | 489 858 | ||||||
| With A/C | 14/65 | 489 713 | ||||||
| Rabbit Diesel | ||||||||
| Standard | 14/35 | 489 799 | ||||||
| With A/C | 14/65 | 489 712 | ||||||
| Vanagon | 14/65 | 489 913 | ||||||
| Volvo | ||||||||
| Standard | 14/55 | 400 933 | ||||||
| Heavy Duty | 14/70 | 450 009 | ||||||
| Diesel | 14/55 | (2) 1257294 | ||||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.