Hella fuel supply unit - Mercedes-Benz Vito / Mixto 2003-2014, Vito Bus 2003 on, Viano 2005-2006

⚠ IMPORTANT: Please verify fitment and measurements before purchasing. Check your vehicle's specif...

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eBayHella 8TF358303-971 Fuel Feed Unit Fits Mercedes Viano Vito Mixto
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Product Information

Full details

This Hella fuel supply unit is designed for Mercedes-Benz Vito/Mixto Van, Vito Bus, and Viano models from 2003 to 2014. It offers reliable OE-quality performance to ensure your vehicle's fuel system functions optimally. A crucial caveat is the necessity to verify exact fitment and measurements against your vehicle's specifications before purchase, as variations exist.

All features

Model Part Number8TF 358 303-971
BrandHella

Extended Product Information

FAQs

How do I confirm if this part fits my Mercedes-Benz?

You must verify your vehicle's exact model, year, and engine type against the compatibility list provided. Crucially, compare measurements and dimensions with your original part or vehicle specifications, as variations can exist even within the same model range.

What does 'OE-quality' mean for this fuel supply unit?

'OE-quality' signifies that the part is manufactured to meet or exceed the standards set by the original equipment manufacturer. This ensures comparable performance, fit, and reliability to the part originally installed on your vehicle.

Can I install this fuel supply unit myself?

Installation of a fuel supply unit involves working with the fuel system, which can be hazardous. It is strongly recommended that installation be performed by a qualified automotive technician who has the proper tools and expertise.

What are the symptoms of a failing fuel supply unit?

Common symptoms include engine misfires, rough idling, difficulty starting, poor acceleration, hesitation, and a noticeable loss of power, especially under load.

How often should I replace my fuel filter if I use this unit?

Always follow your vehicle manufacturer's recommended service interval for fuel filter replacement. Regular replacement helps protect the fuel supply unit from contaminants.

Does Hella offer a warranty on this part?

Warranty information is typically provided by the retailer at the point of sale. Please check the product listing or contact the seller for details on the warranty applicable to this Hella fuel supply unit.

Troubleshooting

Engine misfires or runs rough

This could indicate an issue with fuel delivery. Verify the fuel supply unit is correctly installed and receiving adequate fuel. Check for any restrictions in the fuel lines or fuel filter.

Vehicle struggles to start or cranks but won't start

Ensure the fuel supply unit is providing sufficient fuel pressure. A faulty unit may not be able to pump fuel effectively. Professional diagnosis is recommended.

Poor acceleration or loss of power

A weak fuel supply unit may not be able to meet the engine's fuel demands under load. Check fuel pressure readings and consider replacing the unit if it's below specification.

Fuel leaks around the fuel tank or pump assembly

Inspect all seals and connections related to the fuel supply unit. Ensure they are properly seated and tightened. Leaks are a serious safety hazard and require immediate attention.

Pros and Cons

Pros

  • Manufactured to OE standards for quality assurance.
  • Designed for a precise fit in compatible Mercedes-Benz vehicles.
  • Contributes to reliable and efficient engine operation.
  • Durable materials ensure a long service life.

Cons

  • Requires careful verification of measurements and vehicle specifications before purchase.
  • Not a universal part; specific compatibility is essential.
  • Installation may require specialized automotive knowledge.

Setup, Compatibility & Care

Compatibility Verification:

Before purchasing, it is imperative to verify that this fuel supply unit is compatible with your specific vehicle. Consult your vehicle's owner's manual or a qualified mechanic. Cross-reference the part number (8TF 358 303-971) and carefully check the measurements and dimensions against your existing unit or the vehicle's specifications. Pay close attention to the compatibility list provided:

  • Mercedes-Benz VITO / MIXTO Van (W639) 2007-2014 (Models: 111 CDI 4x4, 109 CDI)
  • Mercedes-Benz VITO Bus (W639) 2007-2014 (Models: 109 CDI 4x4, 111 CDI 4x4)
  • Mercedes-Benz VIANO (W639) 2005-2006 (Models: CDI 2.2, CDI 2.2 4-matic)

Setup:

Installation of a fuel supply unit should be performed by a qualified automotive technician. It typically involves:

  1. Safely relieving fuel system pressure.
  2. Accessing the fuel tank and removing the old unit.
  3. Installing the new Hella fuel supply unit, ensuring all seals and connections are secure.
  4. Reinstalling components and refilling the fuel tank.
  5. Checking for leaks and testing system operation.

Care:

Fuel supply units are generally maintenance-free components. However, ensuring the cleanliness of your fuel is paramount. Regularly replace your fuel filter as per your vehicle manufacturer's recommendations to prevent contaminants from reaching the fuel supply unit and potentially causing premature wear or blockages. Using high-quality fuel from reputable sources also contributes to the longevity of the unit.

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