What precautions should be observed before working on the Fuel Level Sensor and Fuel Pump on the fuel system components for petrol engines on Volvo S40?

Prior to working on any component in the fuel system, take the precautions. To remove the fuel tank, first unscrew the fuel level sensor plastic retaining collar with a pair of large, crossed screwdrivers or with an improvised tool. Carefully remove the fuel level sensor from the tank, taking care not to bend the float arm, and remove the O-ring seal and discard as a new one will be required. Although a filter is fitted to the base of the fuel level sensor, no separate parts are available. If necessary, connect leads from a multimeter to wires from the fuel level sensor (orange and green) and get the resistance at full float deflection and zero deflection; the resistance tested was 200 ohms at zero deflection and 10 ohms at full deflection. For refitting, reverse the removal process, remembering to use a new O-ring seal smeared with petroleum jelly, position the fuel level sensor to provide the arrow on the cover line with the mark on the fuel tank, and tighten the fuel level sensor retaining collar to the specified torque where tools allow.

Genuine Volvo S40 Fuel Pump

Gas Pump

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Volvo S40 Fuel Pump Part Number: 8629907
$296.23 MSRP: $440.83
You Save: $144.60 (33%)
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Product Specifications
- Other Name: Pump Unit; Fuel Pump
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2004-2006 | 2.4i, i, T5 | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
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Volvo S40 Fuel Pump Part Number: 31261425
$543.12 MSRP: $646.57
You Save: $103.45 (16%)
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Product Specifications
- Other Name: Fuel Pump Module Assembly
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2004-2010 | 2.4i, i, T5 | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
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Volvo S40 Fuel Pump Part Number: 30792729
$585.90 MSRP: $793.90
You Save: $208.00 (27%)
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Product Specifications
- Other Name: Electric Fuel Pump Module Assembly; Strainer Set
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2007-2011 | 2.4i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
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Volvo S40 Fuel Pump Part Number: 30792734
$720.17 MSRP: $992.37
You Save: $272.20 (28%)
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Product Specifications
- Other Name: Pump Unit; Fuel Pump
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2007-2010 | 2.4i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
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Volvo S40 Fuel Pump Part Number: 30792778
$404.45 MSRP: $481.48
You Save: $77.03 (16%)
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Product Specifications
- Other Name: Fuel Pump Module Assembly
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2005-2006 | T5 | 5 Cyl 2.5 L GAS

Volvo S40 Fuel Pump

The Volvo S40 Fuel Pump transfers fuel in the tank to the mixer or injectors that lead to the engine to ensure that all the drives begin with a steady power supply. Previous versions of the compact sedan applied carbureted engines that relied on a mechanical Fuel Pump that was bolted to the engine block and had a camshaft eccentric that rocked a lever to pull fuel at low pressure up to the float bowl. With the adoption of electronic fuel injection, Volvo also changed to an in-tank electric unit, which, combined with the level-sending assembly, resulted in the pump remaining cool, reduced vapor lock, and increased pressure of 40 to 60 psi required by injectors. The two styles of the pump are designed to maintain the level of fuel, but they vary in place, power, and pressure, with the mechanical unit on the block at about 15 psi and the submerged electric motor in the tank at 40 to 60 psi and controlled by the ECU. In case the engine of an S40 cranks but does not fire, owners should initially listen to the pump operation, and they should check the connection of the system voltage before they measure the system pressure and flow rate, which is normally measured in liters or gallons per hour. Volvo pumps are calculated with the formula horsepower x 0.5, or 0.75 for boosted engines, divided by 6.2, which is a fast computation that enables Volvo enthusiasts to avoid pressure drops. In total, the Volvo Fuel Pump system balances the flow, the pressure, and the safety, which provides the small model with reliability in fueling during the production years.

OEM parts are the only choice for top quality and real functionality. They pass strict checks, and they match Volvo's factory specs, so installation is easy. If you need new Fuel Pump and you want quality and fit. You will find both here. Our site has a wide range of OEM Volvo S40 parts. The prices are unbeatable, allowing you to get value for money. Each genuine S40 Fuel Pump comes with the manufacturer's warranty. That gives you peace of mind. We ship fast to your door. Order today, and enjoy a smooth, no-hassle upgrade with parts that fit right.

Volvo S40 Fuel Pump Parts and Q&A

Fuel Pump
30792729
Q: What precautions should be observed before working on the Fuel Level Sensor and Fuel Pump on the fuel system components for petrol engines on Volvo S40?
A:
Prior to working on any component in the fuel system, take the precautions. To remove the Fuel Tank, first unscrew the fuel level sensor plastic retaining collar with a pair of large, crossed screwdrivers or with an improvised tool. Carefully remove the fuel level sensor from the tank, taking care not to bend the float arm, and remove the O-ring seal and discard as a new one will be required. Although a filter is fitted to the base of the fuel level sensor, no separate parts are available. If necessary, connect leads from a multimeter to wires from the fuel level sensor (orange and green) and get the resistance at full float deflection and zero deflection; the resistance tested was 200 ohms at zero deflection and 10 ohms at full deflection. For refitting, reverse the removal process, remembering to use a new O-ring seal smeared with petroleum jelly, position the fuel level sensor to provide the arrow on the cover line with the mark on the fuel tank, and tighten the fuel level sensor retaining collar to the specified torque where tools allow.