How to disassemble the door of a Nissan Almera Classic: instructions with nuances

Nissan Almera Classic (in the back B10, also known as Nissan Sunny or Samsung SM3 in some markets) is a car with a simple but reliable design. However, even with such a model, over time, problems arise with the door mechanisms: squeaks, malfunctioning windows, wear of seals or breakage of locks. Parsing the door here does not require professional skills, but has key feature: fastening of the casing on plastic pistons, which are easy to break during careless dismantling.

In this guide you will find step-by-step instructions taking into account the specifics Almera Classic, including hidden fasteners, wiring locations, and common pitfalls. We will analyze both the front and rear doors - their designs are similar, but there are nuances in the location of the speakers and control units. If you are planning to repair a window regulator, change a seal, or install additional sound insulation, this article will help you avoid mistakes and save time.

Preparation: tools and materials

Before starting work, prepare everything you need. The absence of even one tool can lead to damage to the casing or mechanisms. Pay special attention plastic clips — it’s better to buy them in reserve (item number for Almera Classic: 77010-4M000 or analogues).

• 🔧 Screwdrivers: cross (PH2) and flat (for prying off clips), preferably with a magnetic tip.
• 🔨 Plastic mounting blades (2-3 pcs.) - metal ones can scratch the panels.
• 🧲 Magnetic holder for bolts and nuts (so as not to lose fasteners inside the door).
• 🔌 Multimeter (if you plan to check the electrics of the window lifter or speakers).
• 📦 Set of new clips (minimum 5-6 pcs.) and sticky tape for fixing wires.

Also useful flashlight with flexible backlight — lighting inside the doorway is usually insufficient. If you are disassembling the door for soundproofing, prepare materials in advance: Bimast Bomb, Splen 3004 or analogues, as well as degreaser (For example, White Spirit) for cleaning metal.

Removing the door trim: step-by-step instructions

Sheathing on Almera Classic attached to 7-8 plastic clips (depending on the configuration) and 2-3 bolts. The main difficulty is not to break the clips when removing them. Start by dismantling the decorative elements:

1. Remove door handle from the inside. It is attached to one bolt under a decorative plug (pry it off with a flat screwdriver).

2. Unscrew armrest mounting bolt (usually hidden under a plastic cover).

3. Gently pry decorative speaker cover (if any) - it is held on by latches.

4. Disconnect window lift control unit (press the connector lock and pull out the block).

Now move on to the casing itself. Start with bottom corner of the door — here the clips hold weaker. Use a plastic spatula to press the panel evenly, working around the perimeter. Do not pull the casing towards you sharply — first release all the clips, then remove the panel, disconnecting the remaining connectors (for example, backlight wiring or lock buttons).

Disconnected the negative terminal of the battery|

I photographed the location of the connectors|

Prepared a container for fastening elements |

Checked availability of spare clips|

Freed up space around the car for convenience -->

Attention to wiring! At the door Almera Classic A common problem is that the wires fray in the corrugation between the door and the pillar. When removing the casing, inspect the condition of the insulation - if the wires are exposed, they need to be insulated or replaced.

Features of the front and rear doors

Structurally, front and rear doors Almera Classic similar, but there are key differences:

element	Front door	back door
Number of clips	8 pcs.	6-7 pcs.
Speaker	13 cm (4 inches), secured with 3 bolts	10 cm (4 inches), secured with 2 bolts
Window lifter	Electric (in most trim levels)	Mechanical (cable) or electric
Control unit	There are buttons for power windows and mirrors	Lock button only (if available)
Sealant	More bends, harder to install	Easier to install, but thinner

B front door pay attention to mirror adjustment mechanism — it is secured with three bolts under the casing. Don't lose it during parsing plastic gear, which often falls out when removing the mechanism. B back door The most difficult thing to dismantle is the window regulator - the cable mechanism requires care when removing the guides.

How to check the serviceability of the window regulator?

Connect a multimeter to the power window motor connector (pins 1 and 2). When you press the button, the voltage should be 12V. If there is no voltage, the problem is in the control unit or wiring. If there is voltage, but the motor does not work, the mechanism itself is faulty or the gearbox is jammed.

Disassembling the window lift mechanism

If the purpose of disassembly is to repair or replace a window regulator, after removing the trim you need:

1. Unscrew three mechanism mounting bolts (two at the bottom and one in the middle).

2. Loosen glass fastening - it is held on by two bolts at the bottom (use a 10mm socket).

3. Carefully remove the glass from the guides and secure it with tape in the upper position.

4. Disconnect cable mechanism (for rear door) or rack with motor (for the front).

B Almera Classic a common problem with rubbing the cable in the rear doors. If the glass moves jerkily or jams, inspect the cable for burrs. When replacing the cable, lubricate it silicone grease (For example, Liqui Moly Silicone-Spray) to extend service life.

⚠️ Attention: When assembling the window lifter Do not over-tighten the glass mounting bolts - this can lead to misalignment and jamming. Optimal tightening torque: 4-5 Nm.

Replacing the door seal

Seal on Almera Classic Over time, it loses its elasticity, which leads to drafts and noise in the cabin. To replace:

1. Remove the old seal starting from the top corner. It is attached to the grooves of the metal part of the door.

2. Clean the grooves from dirt and glue residues (use WD-40 or degreaser).

3. Start installing the new seal from top corner, gradually pressing it into the groove. To be safe, use silicone spray (For example, Molykote 111).

Original seal for Almera Classic has an article number 80250-4M000 (left side) and 80251-4M000 (right). An alternative is seals from Samsung SM3 (complete analogues). When installing, make sure that the seal is not twisted in the corners - this will lead to a loose fit.

Installation of sound insulation: nuances for Almera Classic

Soundproofing doors is one of the most effective ways to improve acoustic comfort in Almera Classic. Main rule: do not overload the door with heavy materialsso as not to upset the balance of the loop. Optimal set:

• 🔊 Vibration absorber (For example, Bimast Bomb or StP Vibro) - 1-2 layers per metal part.
• 🔇 Sound absorber (For example, Splen 3004 or Accent Premium) - on the casing.
• 🧲 Anti-creak (For example, Molecule) - for processing plastic panels.

Work order:

1. Clean the door metal from dirt and rust (use rust converter, if there are pockets of corrosion).

2. Stick the vibration absorber to the inside of the door, avoiding the places where the mechanisms are attached. Optimal coverage: 60-70% of the area.

3. Install the sound absorber onto the trim, cutting out holes for the speaker and handles.

4. Treat all plastic clips and guides silicone grease to prevent squeaks.

⚠️ Attention: Do not cover with soundproofing technological holes at the bottom of the door - they are needed for water drainage. If they are sealed, moisture will accumulate inside, which will lead to corrosion.

Common mistakes and how to avoid them

Even experienced car owners make mistakes when disassembling doors. Almera Classic. Here are the most common:

• 🔧 Broken clips — never pull the trim by the corners. The clips break if they are not pressed evenly around the entire perimeter.
• 🔌 Mixed up connectors — before disconnecting the wiring, take a photo of the location of the pads. It is easy to confuse the power window and mirror connectors in the front door.
• 🔊 Damaged speakers — when removing the speaker, do not pull the wires, but unscrew the fastening bolts (usually 3 pieces for the front door).
• 🚪 Glass distortion — if you do not fix the glass before removing the mechanism, it may fall and break.
• 💧 Forgotten drainage holes — after soundproofing, check if they are closed.

Another common problem is incorrect assembly. For example, if you forget to install a plastic gasket between the glass and the window lift mechanism, the glass will creak when moving. All gaskets and dampers must be in place!

If after assembly the door does not close well or creaks, check:

• Correct installation seal (it should not protrude beyond the edge of the door).
• Puff loops — over time they become loose.
• Condition castle - may need lubrication (WD-40 Specialist with Teflon).

FAQ: Frequently asked questions about door disassembly

Is it possible to disassemble the door without removing it from its hinges?

Yes, but it's less convenient. For full access to the mechanisms (for example, to replace a window regulator), it is better to remove the door - this way you will avoid the risk of damaging the wiring in the corrugation. To remove the door, unscrew the two bolts on the hinges (you will need a 13mm socket) and support it from below.

Which window regulator is better to install to replace the standard one?

For Almera Classic fit:

• Original (item: 80850-4M000 for the front door, 80851-4M000 for the rear).
• Analogues: Febi (article 27336), Sasic (article 1003010), Delphi (article TSP0114).

When choosing, pay attention to drive type: a rack and pinion mechanism is usually used for front doors, and a cable mechanism for rear doors.

What should I do if the window lifter does not work after assembly?

Check:

1. Connection motor connector (perhaps it is not fully fixed).
2. fuse F30 (15A) in the fuse box (located under the steering wheel).
3. Voltage at the motor connector (should be 12V when the button is pressed).
4. Integrity corrugated wiring between the door and the counter.

If the motor hums, but the glass does not move, there is a problem with the mechanism (a gear may have fallen off or the cable has broken).

How to eliminate a squeaking door seal?

Seal creaking occurs due to:

• Pollution - wash the seal with soapy water and lubricate silicone grease.
• Drying rubber - use tire care (For example, Sonax Gummi-Pflege).
• Incorrect installation — the seal must lie in the groove without twisting.

If the seal is cracked, it needs to be replaced. Temporary solution: stick it on molecular tape to problem areas.

Is it possible to install electric windows instead of manual ones?

Yes, but you will need:

1. Purchase a set of electric windows (for example, from Almera N16 - they fit the fastenings).
2. Route the wiring from the control unit to the door (use corrugation for protection).
3. Install control buttons (can be inserted into standard places or displayed on the center console).
4. Connect the relay and fuse (the connection diagram is in the instructions for the kit).

For the front doors it is easier - there is already electrical wiring there. For the rear doors you will have to run the wires yourself.