Hella Fuel Feed Unit - 8TF358146-091
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Product Information
Full details
The Hella Fuel Feed Unit (8TF358146-091) is an OE-quality replacement component designed specifically for Mercedes-Benz B-Class W245 owners seeking to restore reliable fuel system performance. This complete electric fuel supply assembly ensures consistent pressure and efficient delivery, though it requires professional mechanical installation to ensure safety and system integrity.
All features
| Model Part Number | 8TF358146-091 |
|---|---|
| Brand | Hella |
Extended Product Information
FAQs
Does this unit include the fuel level sender?
Yes, the Hella Fuel Feed Unit (8TF358146-091) comes as a complete package including the fuel sender unit.
What are the OEM reference numbers for this part?
The OEM reference numbers are 169 470 04 94 and 1694700494.
Can I install this myself?
Installation involves working with pressurized fuel lines and volatile fumes. It is strongly recommended to have this installed by a qualified mechanic.
Is the gasket included in the package?
Yes, the unit comes with the necessary gasket/seal to ensure a leak-free installation.
Is this a genuine Hella part?
Yes, this is a genuine Hella product engineered to meet OE-quality standards.
What is the connector type?
The unit features a standard 4-pin connector configuration.
Troubleshooting
Vehicle fails to start after installation
Verify the 4-pin connector is fully seated and check the fuel pump fuse and relay.
Inaccurate fuel gauge readings
Check that the float arm on the sender unit was not bent during installation and ensure the electrical connection is secure.
Smell of fuel near the rear seat
Ensure the gasket is seated correctly and the locking ring is tightened to the manufacturer's specified torque.
Pros and Cons
Pros
- Comprehensive all-in-one package with seals and sensors included
- Matches exact OE specifications for reliable fit and function
- Eliminates guesswork by replacing the entire fuel supply module
- Restores fuel gauge accuracy through included sender unit
Cons
- Installation requires specialized fuel system knowledge
- Working with fuel tanks requires strict adherence to safety protocols
- Not compatible with vehicles outside the specified W245 range
Setup, Compatibility & Care
This unit is intended for the Mercedes-Benz B-Class W245. Before installation, ensure the vehicle's fuel tank is nearly empty to minimize spills and hazards. The assembly features a 4-pin electrical connection; ensure the harness is clean and free of corrosion before plugging in the new unit. Given the nature of fuel system repairs, this component must be installed by qualified personnel. To maintain the life of the fuel pump, avoid running the vehicle on consistently low fuel levels, as this can lead to the pump overheating and premature failure.