Trunk floor in Nissan Almera N16 - a part that often suffers from time, moisture and mechanical stress. Corrosion, cracks or rotten areas not only spoil the appearance, but also threaten safety: rust can spread to the side members, and holes in the floor can become a source of drafts and noise. In this article, we will look at how to diagnose problems, select a replacement (original or analogue), and carry out repairs yourself - from dismantling the old floor to installing a new one, taking into account all the nuances Almera N16 (including differences between hatchback and sedan body styles).

We will pay special attention to materials: what plastic or metal to choose for replacement, how to protect the new floor from corrosion, and what pitfalls await you when working with fasteners and seals. We will also consider alternative solutions - from restoring the old floor to installing protective coatings that will extend the life of the trunk for years.

Signs of Cargo Floor Wear: When to Take Action

First signs of problems with the trunk floor Nissan Almera N16 often go undetected until it is too late. The main enemy is corrosion, which starts with small spots of rust under the carpet or where the spare tire is mounted. If upon examination you find:

  • 🔍 Rust spots under the rubber coating or around the fastening bolts - this is the first bell. Particularly vulnerable areas are around the trunk apron and under the rear lights.
  • 💧 Wet areas or traces of condensation - a sign of a broken seal. Clogged drainage holes in the sills are often to blame.
  • 🔧 Sagging or squeaks under load - they say that the metal has lost its rigidity. This is dangerous in case of an accident, as the floor may not withstand the impact.
  • 🚗 Damp smell in the cabin - an indirect sign of floor rot, especially if it worsens after rain.

On Almera N16 with a mileage of over 150 thousand km, the risk of corrosion of the trunk floor reaches 70% - this is due to design features: drainage channels are often clogged with leaves, and the factory anti-corrosion coating loses its properties over time. The critical area is the area under the spare tire: moisture accumulates here, and rust spreads deeper into the metal faster than in other places.

⚠️ Attention: If, when you press on the trunk floor with your foot, it bends like cardboard, this is a sign of through corrosion. Operating a car in this condition is dangerous: in the event of an accident, the deformed floor will not be able to support the tank or suspension elements.

Replacement materials: original vs analogues

When selecting a new trunk floor for Nissan Almera N16 owners are faced with a dilemma: to buy an original part from Nissan (article 68110-4M000 for sedan / 68110-4M100 for a hatchback) or look for analogues. Let's look at the pros and cons of each option:

Part type Benefits Disadvantages Cost (RUB)
Original floor (Nissan) Perfect fit, factory quality metal, guaranteed against corrosion (if installed correctly). High price, long delivery times (if out of stock). 12 000 — 18 000
Analogs (Dongfeng, Stanko) 30–50% cheaper than the original, often in stock. May require adjustment, thin metal (0.8 mm instead of 1.2 mm for the original). 6 000 — 10 000
Plastic floor (polypropylene) Does not rust, lightweight, easy to install. Does not withstand strong impacts and may crack in an accident. 4 000 — 7 000
Restored floor (welding + patches) The most budget option, suitable for temporary repairs. Low reliability, risk of re-corrosion after 1–2 years. 2 000 — 5 000

For Almera N16 with a mileage of up to 100 thousand km, the original floor is optimal - it will last longer and will not require modifications. If your budget is limited, choose analogues from Dongfeng (Chinese production, but with acceptable quality) or Stanko (Russian brand, adapted to local conditions). Plastic floors are suitable for regions with high humidity, where metal rusts in 2-3 years.

📊 Which trunk floor material do you prefer for Almera N16?
  • Original metal from Nissan
  • Analogue from Dongfeng/Stanko
  • Plastic floor
  • I will restore the old one by welding

Tools and preparation for replacement

To remove and install the trunk floor Nissan Almera N16, you will need a standard set of tools, but there are also specific points. For example, to dismantle the original floor you need Bulgarian or hacksaw for metal - factory floors are often spot welded to the side members. List of required tools:

  • 🔧 Keys and sockets by 10, 12, 14 mm (for bolts securing the spare wheel and trim).
  • 🔨 Hammer and chisel - for separating rusted parts.
  • 🔥 Welding machine (if you are installing a metal floor).
  • 🧴 Anti-corrosion mastic (For example, Dinitrol or Tectyl).
  • 🛠️ Spatula and sandpaper (to clean the surface before welding).

Before starting work, be sure to:

  1. Remove the spare tire, jack and trunk trim.
  2. Disconnect the negative terminal of the battery (to avoid short circuit when welding).
  3. Clean the floor from dirt and treat WD-40 all bolts are on Almera N16 they often get stuck.

☑️ Preparing to replace the trunk floor

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⚠️ Attention: On models Almera N16 2003–2006 The trunk floor is often welded to the body reinforcements. If you are not confident in your welding skills, entrust this work to professionals - an incorrect weld will weaken the rigidity of the body.

Step-by-step instructions: how to remove old flooring

Dismantling the old floor is the most labor-intensive stage. On Nissan Almera N16 It is secured with a combination of bolts and spot welding, so you need to be careful not to damage the side members. Algorithm of actions:

  1. Remove all removable elements: spare wheel, jack, plastic covers. Additional bolts are often hidden under them (usually 4–6 pieces per 10 mm).
  2. Unscrew the fastening bolts: their location depends on the year of manufacture. On models before 2004, the bolts may be hidden under sound insulation.
  3. Cut the weld points: use a grinder with a thin disk (1–1.5 mm). On Almera N16 usually 8–12 weld points around the perimeter.
  4. Remove old flooring: if it is rusty, you can break it with a hammer. Cut off the remaining pieces of metal with a grinder.

After dismantling, thoroughly clean the surface of rust and old mastic. Pay attention to the side members - if they are also corroded, they need to be restored to installing a new floor. To do this use rust converter (For example, Tsinkar) and primer for metal.

What to do if the floor mounting bolts cannot be unscrewed?

If the bolts are rusted, try the following method:

1. Heat the bolt with a hair dryer (do not overheat - 100–150°C is enough).

2. Tap it with a hammer through a metal rod (this will break the oxide film).

3. Use an impact driver or ratcheting socket.

If the bolt is broken, drill it with a drill 0.5 mm smaller than the thread diameter, then cut a new thread with a tap.

Installing a new floor: welding and sealing

Installation of a new trunk floor on Nissan Almera N16 requires precision - the slightest displacement can lead to problems with attaching the spare wheel or trim. If you are installing a metal floor, follow this algorithm:

  1. Preliminary fitting: Place the new floor on the installation site and check the alignment of the holes for the bolts and the spare wheel. If necessary, adjust the edges with a grinder.
  2. Welding:
    • First, grab the floor at 3-4 points (15-20 cm increments).
    • Check the geometry - the floor should lie flat, without distortions.
    • Weld all seams with a continuous seam (thickness 2–3 mm).
  • Seam processing: sand them down with a sander, then apply primer for metal And anti-corrosion mastic.
  • Installation of seals: on Almera N16 A rubber band is laid between the floor and the body (article no. 68120-4M000). Without it, there will be creaking and moisture ingress.

    • Plastic floors do not require welding - they are attached with bolts and sealant. The main thing here is to choose the right one sealant: it must be resistant to temperatures between -40°C and +80°C (e.g. SikaFlex-252). Apply it in a continuous line around the perimeter, then press the floor and secure with clamps for 2-3 hours.

    💡

    Before welding a new floor, treat the inside anti-gravel (For example, Molykote). This will protect the metal from rust from the inside, where the mastic does not penetrate.

    Protecting the trunk floor from corrosion: prevention

    Even the new trunk floor is on Nissan Almera N16 will not last long if measures are not taken to protect it from moisture and mechanical damage. The main ways to extend the life of a part:

    • 🛡️ Anti-corrosion treatment: after installation, cover the floor bitumen-based mastic (For example, Tectyl Bodysafe). Apply in 2 layers and dry for 24 hours.
    • 🚿 Sealing drain holes: check if the channels in the thresholds are clogged. On Almera N16 they often become clogged with leaves, which leads to water accumulation.
    • 🧹 Regular cleaning: Once every 3 months, remove dirt from the trunk and check the condition of the seals. This is especially important after the winter season (salt accelerates corrosion).
    • 🔧 Protective coatings: use rubber mats with edges or liquid locker (For example, Liqui Moly Unterboden-Schutz).

    On models Almera N16 with mileage over 200 thousand km, it is recommended to increase protection additional sound insulation (For example, StP-Flex). It will not only reduce noise, but also serve as a barrier to moisture. The main thing is not to cover the drainage holes!

    💡

    On Nissan Almera N16 2000–2003 release, the trunk floor is thinner (0.9 mm versus 1.2 mm in later models), and therefore requires more frequent anticorrosive treatment - at least once a year.

    Common mistakes when replacing the trunk floor

    Even experienced car owners make mistakes when repairing the trunk floor. Nissan Almera N16which later lead to repeated corrosion or squeaks. The most common mistakes:

    • ❌ Ignoring rust on side members: If you do not remove corrosion from the body reinforcements, it will spread to the new floor.
    • ❌ Savings on sealant: Cheap silicone peels off over time, allowing moisture to penetrate under the floor.
    • ❌ Incorrect welding: a seam that is too thick (more than 3 mm) weakens the metal, and a thin one does not support the load.
    • ❌ Forgetting about soundproofing: without it, a hum from the wheels will be heard in the cabin, especially at speeds over 100 km/h.

    Another common mistake is incorrect installation of the spare wheel. On Almera N16 The spare tire mount must be strictly in the center of the floor, otherwise during sudden braking the wheel may move and damage the trim. Check this before final assembly!

    FAQ: answers to frequently asked questions

    Is it possible to restore the trunk floor without welding?

    Yes, if the corrosion is superficial. To do this:

    1. Clean the rust down to bare metal (with a grinder or sandblast).
    2. Process rust converter (For example, Ferum-3).
    3. Apply epoxy putty with a reinforcing layer (fiberglass).
    4. Paint and close anti-gravel.

    This type of repair will last 2-3 years, but is not suitable for through holes.

    Which sealant is best for plastic flooring?

    Suitable for plastic:

    • SikaFlex-252 — elastic, does not crack during vibrations.
    • 3M PU 590 — sets quickly, is resistant to oils.
    • ABRO GS-1000 - a budget option, but requires preliminary priming.

    Apply sealant zigzag, and not a solid line - it holds better that way.

    How long does it take to replace a trunk floor?

    If you have the tools and experience:

    • Dismantling the old floor - 2-3 hours.
    • Surface preparation (cleaning, priming) - 1–2 hours.
    • Installation and welding of a new floor - 3-4 hours.
    • Anticorrosive treatment and assembly - 1–2 hours.

    Total: 7–11 a.m. (can be extended over 2 days).

    Where to buy an original trunk floor for Almera N16?

    Look for original parts:

    • From official dealers Nissan (guaranteed, but expensive).
    • At disassembly (cheaper, but check the condition of the metal).
    • In online stores: Exist.ru, Autodoc, Emex (article 68110-4M000 for a sedan).

    The cost of a new original floor is from 12,000 rubles, used – from 3,000 rubles.

    Is it possible to drive with a hole in the trunk floor?

    Short term - yes, but it is dangerous:

    • Exhaust gases will enter the cabin (risk of carbon monoxide poisoning).
    • Moisture will accelerate corrosion of the side members.
    • In the event of an accident, the floor will not withstand the load, and the tank or suspension may pierce the interior.

    If the hole is small (up to 5 cm), temporarily seal it aluminum tape and plan repairs urgently.