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Hersteller: European Autospares Trading LLC
Genuine Audi Volkswagen Engine Alternator Generator Unit 4N1903028AX
Dhs. 7,768.00
Hersteller: European Autospares Trading LLC
Genuine Audi Volkswagen Engine Alternator Generator Unit 4N1903028AX
Dhs. 7,768.00
Beschreibung
xProduct Overview
The Genuine Audi 48V Starter-Generator Unit 4N1903028AX is the original equipment belt-driven starter-generator for Audi mild-hybrid TDI models. It works as both the starter motor and the alternator: it restarts the engine smoothly in stop-start driving, recovers energy under braking into the 48V system, and supplies the car electrical systems with charge. When it fails, charging warnings appear, stop-start stops working, and the battery can run flat.
Part Numbers & Reference Codes
OE part number: 4N1903028AX (base number 4N1 903 028 A, also written 4N1903028A). Related OE numbers in the same starter-generator family include 4N0903028H, 4N0903028M and 4N0903028Q. The AX suffix in VAG numbering commonly denotes an exchange unit, so confirm the exchange and core terms with the parts team before ordering.
Vehicle Compatibility & Fitment
This starter-generator fits Audi mild-hybrid TDI models including the A4 (B9), A5, A6 (C8), A7, A8 (4N), Q5 (FY), Q7 (4M) and Q8, as listed in the Fitment Details tab. Always confirm your exact model, engine and production date against your VIN before ordering, since the 48V system and mounting vary across the range.
Key Features & Benefits
- Genuine OE starter-generator: the exact 48V unit specified by Audi for these mild-hybrid TDI models.
- 48V, 250A output: high-output charging for the mild-hybrid system and the car electrical loads.
- Stop-start and energy recovery: restarts the engine smoothly and recovers braking energy into the 48V system.
- Continental manufacture: the original equipment unit for this application, built to factory specification.
Technical Specifications
| OE Part Number | 4N1903028AX |
| Brand | Audi (Genuine) |
| Product Type | 48V belt starter-generator, alternator unit |
| Voltage | 48V, with 12V system |
| Charging Current | 250A |
| Manufacturer | Continental |
| Pulley | 6-rib V-ribbed belt pulley |
| Application | Audi mild-hybrid TDI models |
| Condition | New, exchange suffix AX, confirm core terms |
| Category | Electrical System |
Installation Position & Fitment Notes
The starter-generator is belt-driven and mounts on the engine, driven by the auxiliary belt. It connects to both the 48V mild-hybrid system and the 12V electrical system, so the belt, tensioner and electrical connections must all be in good condition. High-voltage safety procedures for the 48V system must be followed during fitting.
Product Brand, Type & Condition
Brand: Audi, genuine original equipment, manufactured by Continental. Type: 48V belt starter-generator for mild-hybrid TDI models. Condition: new unit carrying the AX exchange suffix, so confirm any core return terms with the parts team before ordering.
What's Included in the Box
This listing includes one (1) Genuine Audi 48V Starter-Generator Unit, OE part number 4N1903028AX. The auxiliary belt and tensioner are not included and should be inspected, and replaced if worn, at the same time.
Installation Requirements
Fitting is a workshop job for a technician familiar with 48V mild-hybrid systems: disconnect the systems safely, remove the auxiliary belt, swap the unit, refit the belt with the correct tension, reconnect the wiring, and clear fault codes. Check charging output and stop-start operation, and road test before returning the car.
Warranty & Returns
This brand-new genuine part is covered against manufacturing defects, and your statutory consumer rights apply in the UAE. If the part arrives damaged or is incorrect due to our error, we will replace or refund it.
Confirm Fitment & Order
Ready to order? Order the Genuine Audi 48V Starter-Generator Unit 4N1903028AX from European Autospares Trading LLC, stocked in Dubai with fast delivery across the UAE and worldwide shipping. Not sure it fits? Contact us with your VIN and our parts team will confirm before you buy. Browse Audi spare parts, our Electrical System Parts catalogue.
Passformdetails
xAUDI FITMENT GUIDE
| Model | Model Year Range | Engine |
|---|---|---|
| Audi A4 (B9) | 2015 – 2026 | TDI mild hybrid, 48V |
| Audi A5 | 2016 – 2026 | TDI mild hybrid, 48V |
| Audi A6 (C8) | 2018 – 2026 | TDI mild hybrid, 48V |
| Audi A7 | 2018 – 2026 | TDI mild hybrid, 48V |
| Audi A8 (4N) | 2017 – 2026 | TDI mild hybrid, 48V |
| Audi Q5 (FY) | 2016 – 2026 | TDI mild hybrid, 48V |
| Audi Q7 (4M) | 2015 – 2026 | TDI mild hybrid, 48V |
| Audi Q8 | 2018 – 2026 | TDI mild hybrid, 48V |
Technician's Advisory: This is a 48V mild-hybrid component, so only a technician trained on high-voltage systems should fit it, following the correct de-energising procedure. Always inspect the auxiliary belt and tensioner at the same time, since a worn belt slips and damages the new unit.
Important: This genuine part is listed by OE part number 4N1903028AX. Exact compatibility depends on the model, engine code and production date. Send your complete VIN to the European Autospares parts team and we will verify this is the correct 48V starter-generator unit for your vehicle.
Häufig gestellte Fragen
xFrequently Asked Questions
It is a belt-driven unit that works as both starter motor and alternator on Audi mild-hybrid TDI models. It restarts the engine smoothly for stop-start, recovers energy under braking into the 48V system, and charges the car electrical systems. Failure brings charging warnings and stop-start faults.
It fits Audi mild-hybrid TDI models including the A4 (B9), A5, A6 (C8), A7, A8 (4N), Q5 (FY), Q7 (4M) and Q8. Model years and engines vary, so confirm your exact model, engine and production date from your VIN before ordering this starter-generator unit.
In VAG numbering, an AX suffix commonly denotes an exchange unit, meaning the old unit may need to be returned as a core. Confirm the exchange and core terms with the European Autospares parts team before ordering, so you know exactly what is expected when the new unit arrives.
Common signs are a charging or battery warning on the dashboard, stop-start no longer working, a flat battery, and fault codes in the mild-hybrid system. A workshop should test charging output and the 48V system before replacing the unit, since wiring and belt faults cause similar warnings.
It should be fitted by a workshop familiar with 48V mild-hybrid systems, following the correct high-voltage safety procedure. The auxiliary belt and tensioner must also be checked, fault codes cleared, and charging output and stop-start operation tested after fitting the new unit.
Günstiger gefunden?
xVersand & Rückgabe
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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