Volkswagen / Audi / Seat / Skoda Voltage Regulator 03L903803C - LLLParts
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Part 03L903803C is marked as number 4 in the diagram.

Volkswagen / Audi / Seat / Skoda Voltage Regulator 03L903803C

Condition: 100% new and genuine Weight: 0.135 kg.
Available to order
SKODA EXPRESS
Dispatch time 2 - 4 business days
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GENUINE VW/AUDI
Dispatch time 3 - 5 business days
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GENUINE VW 2
Dispatch time 2 - 5 business days
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SKODA
Dispatch time 3 - 7 business days
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VAG L
Dispatch time 5 - 8 business days
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The same part number corresponds to the same part. If the part number is identical, the part fits all VAG (Volkswagen Audi group) vehicles (for example You are looking for a SEAT or SKODA, but the part is available from VW/AUDI warehouse - the part will fit Your car). Depending on the selected warehouse, the shipping times and availability may vary.
Stay with the suggested choice
Reveal all warehouses (5 options)
To ensure that part fits your vehicle, click here to check the fitment table.
There are no custom taxes for European and United Kingdom customers
PRICE MATCH GUARANTEE
If you find a lower price at an eligible retailer website, we will match it.
Price match
Browse diagram
Description
Part fitment
Product F.A.Q.
Delivery information
About the product
Part 03L903803C is marked as number 4 in the diagram. You can also view detailed part diagram, Browse diagram.


About Genuine Parts


When it comes to your car, you simply want the best. Whether you own a BMW, Mercedes, Audi, Volkswagen, Porsche, or a Mini, LLL Parts knows how to treat your vehicle. Fitting your ride with OEM parts will ensure that it continues running like a brand new car. By sourcing your parts with us, no one will ever know your automobile’s actual age.

By maintaining your vehicle with the best parts money can buy, you’re gaining the peace of mind that everything will fit accordingly. No one wants to deal with ordering a part, waiting ages for it to arrive, only to find that it doesn’t go together with the model. If you’re looking to save both time and cash in the long run, LLL Parts is your answer.

LLL Parts offers top-quality OEM products. Everything is easily searchable through our easy-to-use catalogues. All you have to do is enter your car brand and manufacture year, as well as the parts you are sourcing for, and voila - a list of genuine parts is ready for your perusal. That’s not all; each item will come with its detailed parts scheme and fitment information to help you make an informed decision.

We at LLL Parts understand that you want to treat your car right. After all, this is the vehicle that will bring you places, keep you and your family safe, and allow you to see the world. That is why we offer support to help you find the exact part you’re looking for. Contact us today. We’re always ready to assist!

We supply the most popular car brand parts, including Fiat, Smart, Skoda, Ford, Porsche, Mini, Volkswagen, Audi, Mercedes-benz, BMW, Seat,
Part fits these cars
The fitment table is for general fitment information. We will verify the fitment for you if you leave your VIN/Chassis number during the checkout. Additionally, your purchase is covered by 14 days return policy.
Volkswagen Amarok
2013 - 2016   Volkswagen   Amarok   
Volkswagen Caddy
2011 - 2015   Volkswagen   Caddy   
Volkswagen Caddy
2011 - 2015   Volkswagen   Caddy   
Volkswagen Campmob. (Typ2
2012 - 2015   Volkswagen   Campmob. (Typ2   Transp
2012 - 2015   Volkswagen   Campmob. (Typ2   LT)
Volkswagen CC
2012 - 2017   Volkswagen   CC   
Volkswagen Crafter
2012 - 2016   Volkswagen   Crafter   
Volkswagen Eos
2011 - 2016   Volkswagen   Eos   
Volkswagen Golf Cabriolet
2012 - 2016   Volkswagen   Golf Cabriolet   
Volkswagen Golf Plus
2012 - 2014   Volkswagen   Golf Plus   
Volkswagen Passat
2011 - 2015   Volkswagen   Passat   Variant
2011 - 2015   Volkswagen   Passat   Santana
Volkswagen Polo
2010 - 2014   Volkswagen   Polo   Vento
2010 - 2014   Volkswagen   Polo   Classic-IND
Volkswagen Scirocco
2009 - 2014   Volkswagen   Scirocco   
Volkswagen Tiguan
2012 - 2017   Volkswagen   Tiguan   
Volkswagen Touran
2011 - 2015   Volkswagen   Touran   
Volkswagen Transporter
2012 - 2015   Volkswagen   Transporter   
Volkswagen Vento
2013 - 2014   Volkswagen   Vento   
Audi A1
2011 - 2014   Audi   A1   
Audi A3
2009 - 2013   Audi   A3   S3
2009 - 2013   Audi   A3   Sportback
2009 - 2013   Audi   A3   Limousine
2009 - 2013   Audi   A3   Quatro
Audi A3 Cabriolet
2008 - 2013   Audi   A3 Cabriolet   
Audi A4
2008 - 2012   Audi   A4   Avant
Audi A4 allroad quattro
2010 - 2016   Audi   A4 allroad quattro   
Audi A4
2008 - 2012   Audi   A4   S4
2008 - 2012   Audi   A4   Avant Quatro
Audi A5
2010 - 2011   Audi   A5   S5 Cabriolet
Audi A5
2008 - 2011   Audi   A5   S5 Coupe
2008 - 2011   Audi   A5   Sportback
Audi Q3
2012 - 2014   Audi   Q3   Sportback
Audi Q3
2012 - 2015   Audi   Q3   Sportback
Audi Q5
2009 - 2012   Audi   Q5   Sportback
Audi TT
2011 - 2014   Audi   TT   TTS Coupe
2011 - 2014   Audi   TT   Roadster
Seat Ibiza
2013 - 2015   Seat   Ibiza   ST (SEAT)
Skoda Octavia Ming Rui
2014 - 2023   Skoda   Octavia Ming Rui   
Skoda Superb
2008 - 2013   Skoda   Superb   
Browse part diagram
Diagram information provided by catalogparts

Car part diagram
NoPart codePriceTitleNoteReq. quant.Model
alternator versions
1C 903 023 C140A VALEOCAXA,CAXC
2C 903 023 A140A BOSCHCAXA,CAXC
3D 903 016 A140A VALEOBZB,CDAA
CDAB
3J 903 023 C140A VALEOBZB,CDAA
CDAB
CCZA
4B 903 016 AB140A BOSCHBZB,CDAA
CDAB
CCZA
5F 903 023 P140A VALEOCDVA
BXE,BLS,BKD
BMP,CBBB
CLJA,CFFB
CFGB
6F 903 023 N140A BOSCHCDVA
BXE,BLS,BKD
BMP,CBBB
CLJA,CFFB
CFGB
CAYC
7F 903 023 C140A VALEOBXE,BLS,BKD
BMP
CBBB
8L 903 023For vehicles with
start-stop		140A BOSCHCAYC
9L 903 023AFor vehicles with
start-stop		140A VALEOCAYC
9C 903 023 SFor vehicles with
start-stop		140A BOSCHCAXA
9C 903 023 TFor vehicles with
start-stop		140A VALEOCAXA
10G 903 023 F180A BOSCHCDVA
11G 903 023 G180A VALEOCDVA
11L 903 023 Q180A VALEOCDVA
12G 903 023180A BOSCHCBBB
CLJA,CFFB
CFGB
12G 903 023For vehicles without
start-stop operation		180A BOSCHCAYC
131 903 026 L180A VALEOCBBB
CLJA,CFFB
CFGB
131 903 026 LFor vehicles without
start-stop operation		180A VALEOCAYC
20L 903 023 BFor vehicles with
start-stop		180A VALEOCAYC
21L 903 023 DFor vehicles with
start-stop
D >> - 04.03.2013		180A BOSCHCAYC
CJJA,CFFB
CFGB
21L 903 024 FFor vehicles with
start-stop
D - 04.03.2013>>		180A BOSCHCAYC
CLJA,CFFB
CFGB
Product Q & A
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Product F.A.Q.
How do I know if a part will fit my car?

We got a general fitment information table, which can help you identify if the part will fit your car or not. Also, you can leave your VIN/Chassis during checkout, so our team will verify the fitment for you. If you already paid for your order and the part will not fit your vehicle, we will issue you an instant refund.

How to make an order

At LLLparts.co.uk, you can quickly place an order. After you find the part you need, please select one of the warehouses and add it to your cart. 

After that, proceed to checkout, fill in the required shipping information, select the shipping method, and you can place your order.

In some cases, when the item has no weight, we will need to calculate the shipping price individually. Usually, we sum it within 10 minutes during our working hours, and if we are not working, you will receive an email notification.

I can't find parts that I need

Our team of professionals will always help you to find the correct and required parts for your car. If you can't find the parts you need, don't hesitate to get in touch with us by email at support@lllparts.co.uk or use our Live chat option and we will be happy to help you. 

How I can track my order?

For tracking your order, you will need your order number and email address.

You can track your order by visiting the order tracking page here.

Order Status Tracking

How I can return an item?
  • You can find the return form in the top right corner Help me -> Begin a return.
  • Buyer has 100 calendar days from the date he has purchased it to return an item.
  • To be eligible for a return, the item must be unused and in the same condition that the buyer received it.
  • Item must be in the original packing (factory sealing should not be damaged).
  • Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item.
How I can find my VIN/Chassis number?

The car's vehicle identification number (VIN) is the identifying code for a SPECIFIC automobile. The VIN serves as the car's fingerprint, as no two vehicles in operation have the same VIN. A VIN is composed of 17 characters (digits and capital letters) that act as a unique identifier for the vehicle. A VIN displays the car's unique features, specifications and manufacturer. The VIN can be used to track recalls, registrations, warranty claims, thefts and insurance coverage.


WHAT IF THE VIN IS NOT 17 CHARACTERS LONG?

Double-check to make sure that you have the right VIN and have copied it down correctly. Once you have verified that the VIN is definitely less than 17 characters, the VIN is most likely from a pre-1981 vehicle. Prior to 1981, VINs varied in length from 11 to 17 characters.  


WHERE CAN I FIND THE VIN?

The VIN can be found by looking at the dashboard on the driver's side of the vehicle. The easiest way to view it is to stand outside the vehicle on the driver's side and look at the corner of the dashboard where it meets the windshield. If the VIN cannot be found there, open the driver's side door and look at the door post (where the door latches when it is closed). It is likely that the VIN will also be displayed in this location. See the image below:  

VIN Location


LOOK FOR THE VIN IN THESE OTHER LOCATIONS:

  • Insurance card/Insurance policy
  • Vehicle title and registration

Delivery information

For UK Customers

While the UK has left the EU, we want to assure you that all UK orders are being shipped swiftly from our UK warehouse. Our prices remain the same, and your order will be delivered with local VAT and any import duties pre-paid. When you shop at LLLparts.co.uk, the price you see is the total price you'll pay. No customs taxes or duties will be applied.

For EU Customers

We are shipping orders to the whole EU using DPD, Economy Post, LLLparts.co.uk has multiple warehouses in Europe to ensure that your package will be delivered within stated delivery times at our online store. No customs taxes or duties will be applied.

For Non-EU Customers

Shipping orders using DHL or Economy postage. The shipping price varies on your country and the item size and weight. In some cases, we are calculating shipping price individually. 

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