Parts for your 2010 Nissan Serena-Fuel pump

2010 Nissan Serena fuel pump — what it does and how to look after it

Based on Nissan’s Electronic Service Manual for the Serena C25/C26 series (Fuel System – FL section, MR20DE), the 2010 Nissan Serena runs an electronically controlled, in-tank electric fuel pump. The parts catalogue for C25/C26 models also lists a complete pump module (commonly referenced as 17040-xxxxx) with integral regulator and strainer, confirming it’s a fitted and essential component. Engine control documentation for the MR20DE further details ECU-driven pump relay control, which only applies when a high-pressure EFI pump is present. So yes, a fuel pump is absolutely relevant on a 2010 Serena.

On this model, the fuel pump sits inside the tank as a modular unit. Its job is to supply steady, high-pressure fuel to the MR20DE engine’s injectors, with pressure regulated within the module for smooth running and crisp throttle response. Because it’s an in-tank setup, it also helps cool itself with fuel and reduces pump noise.

There’s no fixed replacement interval, many original pumps run well past 150,000 km. That said, good servicing habits make a big difference. Keeping at least a quarter tank helps keep the pump cooled and lubricated. Sticking to quality petrol in Australia and New Zealand limits contamination and varnish that can clog the strainer. If the vehicle has been stored or has seen dirty fuel, a pump health check during scheduled servicing is smart.

Typical signs the Serena’s pump is on the way out include hard starting, hesitation under load, flat spots on hills, a noticeable whine from the tank, or fault codes for low rail pressure. If those crop up, a qualified tech will usually verify pressure with a gauge or scan live data before calling the pump.

Replacement is straightforward for a trained technician. The Serena provides a service hole under the cabin floor to access the pump module, so the tank usually doesn’t need to be dropped. Standard safety applies: disconnect the battery, safely relieve fuel pressure, and keep ignition sources away. It’s best practice to replace the tank seal/O-ring and the strainer with the module, and to inspect the tank for debris. Because the Serena’s fine fuel filter is integrated into the module, it’s typically replaced as a complete assembly rather than serviced separately. Using a quality OE or reputable aftermarket unit avoids noise, leaks, or incorrect pressure that can upset drivability.

• Pro tip: if the old pump failed due to contaminated fuel, have the tank cleaned before the new module goes in.

Technical sources referenced: Nissan Serena C25/C26 Electronic Service Manual (Fuel System – FL, MR20DE), Nissan MR20DE engine control documentation, Nissan parts catalogue listings for the C25/C26 fuel pump module.

Popular questions

Where is the fuel pump on a 2010 Nissan Serena?
It’s an in-tank electric pump. Nissan provides an interior service opening under the floor, so technicians can access the pump module without dropping the tank.

What are common symptoms of a failing Serena fuel pump?
Hard starting, stalling, loss of power on hills, surging, or a high-pitched whine from the tank are common. You may also see fault codes related to low fuel pressure.

Does the 2010 Serena have a replaceable fuel filter?
The fine filter is integrated into the pump module. When the filter is restricted or the pump fails, the entire module (with strainer and seal) is typically replaced.