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Alternator 04C 903 023 K For Audi A3 8V / VW Golf Mk7
The alternator (generator) carrying OEM number 04C 903 023 K is the electrical heart of modern Volkswagen Group petrol engines, including the Audi A3 8V and VW Golf Mk7 1.2 TSI and 1.4 TSI models. This 140A unit converts the engine's mechanical rotation into electrical current, powering everything from the ignition system to the LED headlamps and recharging the battery under all driving conditions.
Product Specifications
Part Number:
04C 903 023 K
Product Name:
Alternator
Car Model:
Audi A3 8V VW Golf Mk7
Engine Model:
VAG EA211
Condition:
100% Brand New
Size:
Standard
Weight:
Standard
Origin:
China Mainland
Main Market:
Middle East, Asia, Africa, South America, North America & Europe
Package:
Neutral Packing Or Make It As Requested
Material:
High-strength aluminum alloy & precision bearings
Cooling Type:
Engine coolant circulation
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Vehicle Applications
This Audi / VW alternator 04C 903 023 K directly replaces the factory unit in the following configurations:
Audi
Model
Generation
Chassis Code
Years
Engine
Audi A3
3rd Gen (8V)
8V1 (Sedan), 8VK (Sportback)
2012‑2017
1.2 TSI, 1.4 TSI
Audi A1
1st Gen (8X)
8XA, 8XF, 8XK
2012‑2018
1.2 TFSI / 1.4 TFSI
Volkswagen
Model
Generation
Chassis Code
Years
Engine
Golf Mk7
7th Gen
5G1 (Hatchback), BQ1 (Estate), BE1, BE2
2012‑2020
1.2 TSI / 1.4 TSI
Golf Variant
7th Gen
BA5, 5G1
2013‑2020
1.2 TSI / 1.4 TSI
Jetta Mk6 / Mk6.5
6th Gen
162, 163
2015‑2018
1.4 TSI (with Start‑Stop)
Passat
B8
3G2, 3G5
2014‑2019
1.4 TSI / 1.8 TSI
SEAT / Škoda
Model
Generation
Years
Engine
SEAT Leon
Mk3 (5F)
2012‑2018
1.2 TSI / 1.4 TSI
SEAT Ateca
KH7
2016‑2019
1.0 TSI / 1.4 TSI
Škoda Octavia
Mk3 (5E)
2012‑2019
1.2 TSI / 1.4 TSI
Škoda Karoq
NU7
2017‑2019
1.0 TSI / 1.4 TSI
Škoda Yeti
5L
2009‑2015
1.2 TSI
Features & Benefits
Precision 140A Output - Designed for EA211 engines with high electrical loads including EPAS, heated seats, and PTC cabin air heaters
LIN-Bus Communication - Fully compatible with modern VAG electrical systems for optimal fuel efficiency
Overrunning Alternator Pulley (OAP) - Extends belt life and prevents belt slap
OE Supplier Quality - Manufactured by VALEO under IATF 16949 and ISO 9001 certified quality systems
Direct Fitment - No adapters or wiring modifications required
6-Rib Poly-V Belt Compatibility - Matches standard accessory belt drive for EA211 engines
Enhanced Heat Dissipation - Designed for Start-Stop duty cycles
No Software Coding Required - Direct replacement without complex programming
Installation & Maintenance
⚠️ IMPORTANT: This alternator is directly driven by the engine's accessory belt and is a key component of the vehicle's electrical charging system. Professional installation by a qualified auto electrician is strongly recommended.
Common Failure Symptoms:
Red battery icon on instrument cluster while engine is running
"Check Charging System" or "Battery/Alternator Workshop" message
Fault codes P0562 (System Voltage Low) or P0622 (Generator Field Control Circuit)
Dimming headlights or flickering interior lights at idle
Sluggish engine crank on cold mornings
Whining noise from the accessory belt area
Packaging & Supply
Individual packaging: Sealed in anti-static VCI bag, foam-lined carton
Carton dimensions: Approximately 22 × 18 × 14 cm
Net weight: Approximately 4.5-5.5 kg
Master carton: 8 units per export carton
Lead time: 3-7 working days for stock orders
Minimum order quantity: 1 piece
Shipping methods: FedEx, UPS, DHL for samples; sea freight for bulk
Yimi(Guangzhou) Automotive Parts Co,Ltd
located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv... Yimi(Guangzhou) Automotive Parts Co,Ltd
located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv...