Parts for your 2020 Nissan Serena-Oil pump

2020 Nissan Serena oil pump — purpose, service tips and replacement

Based on Nissan’s technical literature for the C27 Serena — including the Factory Service Manual for the C27 model series (Section LU: Lubrication System) and the Engine Mechanical sections for the MR20DD 2.0-litre petrol and the HR12DE generator engine used in e-POWER — the 2020 Serena is fitted with an engine oil pump. It’s a chain-driven internal trochoid/gerotor pump that maintains oil pressure across the engine. That makes the oil pump absolutely relevant on all 2020 Serena variants, including S-HYBRID and e-POWER.

On this MPV, the oil pump’s job is to keep the MR20DD or HR12DE well-lubricated under every driving condition. It feeds pressurised oil to the crankshaft and camshaft bearings, timing components, valve timing actuators, and other galleries, helping carry heat away from hot spots and minimising wear. Without a healthy pump and clean oil, bearings can score, chains can rattle, and variable valve timing can misbehave — none of which anyone in Australia or New Zealand wants to deal with on the school run.

• It maintains stable oil pressure from idle to highway speeds.
• Supports VVT operation and timing chain tensioners.
• Helps cool and clean internal components by circulating oil through galleries and the filter.
• Prevents premature wear, especially on cold starts.

The pump itself isn’t a scheduled service item