Nissan Almera engine sump: how to choose, replace and avoid mistakes

Oil pan Nissan Almera - a detail that is often left unattended until oil begins to leak or a knocking noise appears when driving over uneven surfaces. Meanwhile, not only the cleanliness of the engine compartment depends on its condition, but also oil pressure stability in the system, which means the resource of the entire engine. In this article we will look at how to choose the right pallet for Almera G15, N16 or N18when to change it, and why standard sealants can cause repeated leaks after a month.

Feature Almera - compact engine compartment and specific sump shape, which varies depending on the year of manufacture and engine type (HR16DE, K4M or QG15DE). We have collected current articles, compared original parts with analogues from Febi, Corteco And Elring, and also added step-by-step instructions with photos of nuances that even experienced craftsmen are silent about. For example, why when replacing the pan on an Almera N16 with an automatic transmission, it is necessary to remove the subframe, and on the G15, a jack and an engine support are enough.

Signs of a malfunctioning engine sump: when is it time to change it

First signal - oil stains under the car after parking. But a leak can come not only through a gasket or a crack in the pan, but also from under the oil filter or crankshaft seal. How to distinguish?

• 🔍 Puddle under the center of the crankcase - a clear sign of a problem with the pan or its gasket. If oil drips toward the front, check the crankshaft seal.
• 🛠️ Knocking or rattling noise when driving over uneven surfaces — the pallet could be deformed from an impact (for example, hitting a curb). On Almera N16 this often leads to cracks near the drain plug.
• ⚠️ Drop in oil level without visible leaks — if the dipstick shows a minimum, but there are no puddles, the pan could be cracked at the top, and the oil goes inside (for example, into the box on models with automatic transmission).
• 📉 Engine overheating — if there is a strong oil leak, its level drops, which leads to insufficient lubrication and an increase in temperature.

On Nissan Almera G15 (since 2012) a common problem with peeling of sealant at the junction of the pan and the cylinder block. This is due to a manufacturing defect - in some batches the sealant was applied in too thin a layer. If you notice that a leak appears 1-2 months after changing the oil, this defect is to blame.

⚠️ Attention: On Almera N18 (restyling 2019+) the pan is mounted with 18 bolts instead of 16, as on the G15. If you use an old gasket or undertighten the bolts, oil will leak through the leaks.

Part numbers for pallets for Nissan Almera: original vs analogues

The choice of pallet depends on model, year of manufacture and engine type. Below is a table with current article numbers for popular versions Almera:

Model and engine	Original article	Analogs (brand + article)	Notes
Almera G15 (2012–2018), HR16DE	21010-JM00A	Febi 28267 Corteco 20460028 Elring 725.530	Complete with gasket. On restyled models (2016+), modifications to the fastenings may be required.
Almera N16 (2000–2006), QG15DE	21010-4M500	Ajusa 13055700 Victor Reinz J16057	Often cracks on impact. It is recommended to install crankcase protection.
Almera N18 (2019–present), HR16DE	21010-JM01A	Corteco 20460029 Elring 725.531	The shape of the drain neck has been changed. Incompatible with pallets from G15!
Almera Classic (2013–present), K4M	21010-5M50R	Febi 28268 Mahle OR 210 010	Metal thickness 1.2 mm (versus 0.9 mm for analogues). It's better to take the original.

When choosing an analogue, pay attention to material:

• 🔧 Aluminum pallets (original) are lighter and dissipate heat better, but are more expensive and can be deformed under strong impacts.
• 🛡️ Steel (most analogues) are cheaper and stronger, but heavier and dissipate heat worse. On Almera G15 With turbo engines this can lead to oil overheating.

Step-by-step replacement of a pan on a Nissan Almera: nuances and errors

Replacing the pallet with Almera seems like a simple operation, but there are several critical moments, which are missed even in service manuals. For example, on G15 you can't just unscrew the bolts - first you need to loosen the subframe or hang the engine, otherwise the pan will not budge.

Tools and materials:

• 🔧 Set of sockets (10 mm, 12 mm, 14 mm) + extension.
• 🔨 Plastic scraper for removing old sealant.
• 🧴Sealant Loctite 574 or ThreeBond 1211 (do not use silicone!).
• 🛢️ New oil + filter (on HR16DE — 4.3 l, at QG15DE - 3.8 l).
• 🔩 Torque wrench (bolt tightening torque - 8–10 N m).

Work order:

1. Drain the oil (be sure to have the engine warm!). On N16 the drain plug may stick - use penetrating lubricant WD-40 10 minutes before unscrewing.
2. Remove the crankcase protection (if equipped). On G15 it is secured with 6 bolts, N18 - 4 bolts + 2 pistons.
3. Unscrew the pan bolts in crosswise, starting from the corners. If the bolt is broken, drill it out and tap a new thread. M6×1.0.
4. Remove the pan and clean the mating surface of the block from old sealant. Don't use sandpaper! Metal shavings will get into the oil.
5. Apply a thin layer of sealant to the new pallet (thickness 1–1.5 mm). On Almera Classic additionally coat the corners - oil often oozes there.
6. Install the pan, tighten the bolts by hand, then tighten with a torque wrench.
7. Fill with oil, start the engine and check for leaks. Avoid high revs for the first 500 km! The sealant needs time to polymerize.

The mating plane of the block has been cleared of old sealant|

The threads of all bolts have been checked (no stripped threads)|

The sealant was applied without any gaps (especially in the corners)|

Bolts are tightened crosswise to the correct torque|

A new drain plug has been installed (if the old one is deformed) -->

⚠️ Attention: On Almera G15 With an automatic transmission, when replacing the pan, you can accidentally damage the crankshaft position sensor if you do not remove its mounting bracket. It is located to the right of the pallet and is secured with one bolt M8.

What happens if you overtighten the pan bolts?

If the tightening torque is exceeded (more than 12 Nm), the aluminum pan may become deformed and the gasket may sag. This will lead to oil leakage after 1–2 thousand km. Particularly critical for Almera N18, where the tray is thinner than on previous generations.

Pan sealant: which one to choose and how to apply

The mistake 80% of car owners make is using silicone sealant (For example, ABRO or Mannol). It cannot withstand temperature changes and oil pressure, which is why a leak appears after 3–6 months. For Nissan Almera only suitable anaerobic sealants, which polymerize without air access:

• 🧪 Loctite 574 — the optimal choice for aluminum pallets. Withstands up to +150°C and pressure up to 3 bar.
• 🧪 ThreeBond 1211 - used on assembly lines Nissan. Suitable for steel and aluminum pallets.
• 🧪 Permatex Anaerobic Gasket Maker - a budget analogue, but requires careful cleaning of the surface.

How to apply sealant:

1. Clean the surface of the pan and cylinder block white spirit or bryke-cleaner. Do not use gasoline - it leaves a film!
2. Apply sealant solid line along the entire perimeter, without interrupting in the corners. On Almera N16 additionally coat around the drain plug.
3. Assemble the tray within 5 minutes - after this the sealant will begin to set.
4. Tighten bolts no earlier than 10 minutes and no later than 20 minutes after application.

Pallet protection: is it necessary and how to choose

On Nissan Almera Factory crankcase protection is available only on top trim levels. But given the low ground clearance (160 mm at G15), its installation is recommended for everyone who drives on bad roads. The main thing is to choose the right model:

• 🛡️ Steel protection (2-3 mm) - reliable, but heavy (additionally loads the suspension). Suitable for off-road use.
• 🛡️ Aluminum - 30–40% lighter, but more expensive and can be deformed under strong impacts.
• 🛡️ Composite (plastic + carbon fiber) - the lightest, but does not withstand targeted impacts (for example, from stones).

For Almera G15 the best option is steel protection against NPP (article NG-1015) or Titan (TS-0101). It is attached to standard places without drilling and covers not only the pan, but also the oil filter. On N16 suitable protection from Febi (28269), but it will have to be modified around the edges with a grinder - otherwise it will cling to the asphalt.

⚠️ Attention: On Almera N18 with engine HR16DE protection against G15 — The location of the subframe mounts has changed. Use only original 21010-JM020 or equivalent from Corteco (20460030).

Common mistakes when replacing a pallet and how to avoid them

Even experienced technicians make mistakes that lead to repeated leaks or engine damage. Here are the most common:

1. Using an old gasket. On Almera it's disposable! Even if it looks normal on the outside, when the bolts are tightened it will sag and oil will begin to ooze.
2. Uneven bolt tightening. If you twist them in a circle rather than crosswise, the tray will become deformed. On N16 this often leads to cracks near the oil pump.
3. Saving on sealant. Silicone sealants (eg. ABRO 999) cannot withstand oil pressure and temperature. The leak will return in 2-3 months.
4. Late oil change after installation. Up to 200 ml of old oil with metal shavings remains in the pan. If you do not flush the system, the new filter will become clogged within 1–2 thousand km.
5. Ignoring crankcase protection. Without her on Almera G15 The sump often breaks through when hitting curbs, which leads to instant loss of oil and engine seizure.

FAQ: Answers to frequently asked questions

Is it possible to drive with a cracked pan?

For a short time (up to 50–100 km) it is possible if the oil leak is insignificant and the level on the dipstick does not fall below the minimum. But with a strong crack, the risk of engine seizure due to oil starvation is extremely high. On Almera N16 cracks often appear near the drain plug - in this case, the pan needs to be changed urgently.

Which sealant is best for an aluminum pan on Almera G15?

Optimal choice - Loctite 574 or ThreeBond 1211. They do not corrode aluminum and can withstand temperatures up to +150°C. Silicone sealants (eg. ABRO) are not suitable - they peel off over time and leak.

How much does it cost to replace a pallet at a service center?

The cost depends on the model:

• Almera N16: 3,000–4,500 rub. (subframe removal required).
• Almera G15: 2,500–3,500 rub. (without removing the subframe).
• Almera N18: 4,000–5,500 rub. (more difficult to access the bolts).

Self-replacement will cost 1,500–2,500 rubles. (price of pallet + sealant + oil).

What happens if you don't change the pan gasket?

The old gasket loses its elasticity and does not provide a tight seal. 1–3 months after assembly, oil will begin to ooze along the joint, and if the gasket is severely deformed, oil pump depressurization, which will lead to a drop in oil pressure and wear of the crankshaft liners.

Is it possible to install a tray from Almera G15 on N18?

No! Despite the same engine HR16DE, pallets are different:

• Shape of the drain neck.
• Number and location of bolts (16 vs 18).
• Metal thickness (at N18 0.3 mm thinner).

Installing a non-original pan will lead to oil leakage and possible damage to the oil pump.