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Number 8 marks the part’s position in this exploded view (Volkswagen Tiguan 2.0 4Motion (2017-2024)).
Other diagrams in the gallery may use a different number for the same part.
Product overview
Genuine OEM Volkswagen Voltage Regulator, part number 04E903803. This component is responsible for controlling the output voltage of the alternator, ensuring that the vehicle's battery is charged correctly and that all electrical systems receive a stable power supply. It is a critical part of the charging system. Genuine OEM voltage regulators are precisely calibrated to match the vehicle's electrical demands, ensuring reliable performance and preventing damage to sensitive electronics.
Catalogue entry: REGULATOR; only to be used for: 04E 903 015 G.
Technical details
- Category
- Electrical & Wiring
- Country of origin
- Spain
- Customs (HS) code
- 85118000
- Manufacturer
- Volkswagen
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 9.5 × 7.3 × 4 cm
- Shipping weight
- 0.14 kg
Specifications
As recorded in the manufacturer’s parts catalogue for this part number.
Equipment codes
- N09
- TJ7
- TL1
- TL8
PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
Parts diagram & fitment
6 vehiclesVoltage Regulator — locate 04E903803 Volkswagen Voltage Regulator | Genuine OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly16
- 1Alternator 04E903015G
- 1Alternator 05E903026K
- 1Alternator 05E903026L
- 1Alternator 05E903027A
- 1Alternator 04E903015H
- 4Ut Hexagon Nut Self-locking Hexagon Nut N90074404
- 5Part N90403004
- 7Part 059903193C
- 7Part 06F903193
- 7Part 06J903193
- 8Regulator 05L903803
- 8Regulator 04C903803B
- 8Regulator 05E903803
- 9Ring 028903237E
- 14Part 06H145291A
- 15Belt Pulle 04E903219E
Vehicle fitment table6
Europe (1)
| Vehicle | Years | Pos. | PR |
|---|---|---|---|
| Tiguan 2.0 4Motion | 2017-2024 | 8 | 04 |
Other markets (5)
| Vehicle | Years | Pos. | PR |
|---|---|---|---|
| Taos 1.4 | 2021-2023 | 8 | 04 |
| Nivus | 2020- | 6 | D |
| Taos 1.4 | 2020-2024 | 8 | |
| T-Cross 1,0 | 2019- | 6 | D |
| GOLF "ZA." | 2005-2007 | 6 | D |
Diagrams & fitment data powered by oemdiagrams.com
04E903803 Volkswagen Voltage Regulator | Genuine OEM is fitted on: Tiguan 2.0 4Motion 2017-2024; Taos 1.4 2021-2023; Nivus 2020-; Taos 1.4 2020-2024; T-Cross 1,0 2019-; GOLF "ZA." 2005-2007.
