Diesel Fuel Leak Off Pipe / Return Line – VW Transporter & More 04L130235L

Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.

Ensure the fuel system in your VW van is running flawlessly with this durable Fuel Injector Return Leak Pipe crafted for the California, Caravelle, Crafter and Transporter / Caravelle models. Designed to match and replace OEM part numbers such as 04L 130 235 L, this return (leak-off) pipe carries excess fuel from the common-rail injectors back into the return line, helping prevent air ingress, overpressure, erratic starting and potential fuel faults. Built to exacting standards, this pipe offers direct fitment, UK-stock availability and free shipping — giving you confidence in both performance and reliability.

OEM Number: 04L130235L, 04L130235L

Quantity: 1

Our SKU: TVW04L130235L_94

All our Fuel Injector Return Leak Pipe are OEM quality and reliable after market car parts. This Fuel Injector Return Leak Pipe is specifically compatible with VW: California, Caravelle, Crafter, Transporter, Transporter/Caravelle, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Frequently Asked Questions (FAQs)

Q1: What exactly is this return/leak-off pipe and why is it important?
A1: In modern common-rail diesel systems, each injector allows a small quantity of fuel to return to the fuel system rather than being injected. This “return” or “leak-off” pipe safely channels that unused fuel and maintains correct fuel pressure and priming. If it fails, it can allow air entry, cause long crank times, or trigger fuel system faults.

Q2: Will this pipe fit my vehicle?
A2: This particular pipe is specified for VW models: California, Caravelle, Crafter, Transporter / Caravelle, with the 2.0 TDI diesel engine (common-rail) and OEM number 04L130235L. To be safe, check your vehicle’s engine code, chassis and existing part number, or provide your VIN/registration for confirmation.

Q3: What are the symptoms of a failing or damaged return/leak-off pipe?
A3: Common signs include:

• Longer than usual cranking when starting cold.

• Fuel odour around the injector area or visible fuel leakage.

• Diagnostic fault codes related to fuel system pressure, or irregular running of the engine.

• Air getting into the fuel rail / injector system, reducing performance.

Q4: Is the installation difficult and are there any special instructions?
A4: Installation is fairly straightforward: you’ll need to access the injector rail area, remove the old pipe and ensure all fittings and clamps are correctly secured. It's important to ensure the routing matches OEM, secure all connections and check for any leakage after installation. Also prime the fuel system if necessary. No special coding is usually required.

Q5: Is this an original OEM part or aftermarket equivalent? What about warranty and shipping?
A5: This is a high-quality aftermarket direct-replacement pipe designed to meet OEM specifications (for example replacing 04L130235L) but not branded by VW. It offers excellent value. Shipping is from UK stock and free on eligible orders. All products are protected by a 12 month worry-free warranty and You may return most new, unopened items within 30 days of delivery for a full refund.