Taillight <em>Nissan Almera N16</em>: how to replace, repair and select lamps

Nissan Almera N16 (2000–2006) is a popular sedan, but over time, even reliable Japanese cars wear out their lights. Taillights are no exception: they dim, crack, or stop working due to oxidation of the contacts. In this article, we will look at how to independently diagnose faults, replace lamps or the entire headlight, and also select analogues of original parts.

Features of the rear lights Almera N16 — their modular design: a brake light, a parking light, a turn signal and a reversing light are combined in one unit. This makes it easier to replace lamps, but makes it difficult to find the exact cause of the failure. We have collected proven connection diagrams, lamp part numbers and step-by-step instructions so that you can save time and money at the service station.

Device and connection diagram for the taillight

Tail light Nissan Almera N16 consists of four main segments:

• 🔴 Stop light (lamp P21/5W - double-stranded)
• 🟡 Turn signal (lamp PY21W orange)
• 🟢 Reversing light (lamp W16W)
• ⚪ Side light (lamp W5W)

All lamps are connected to the fuse box via wiring harness, which runs under the trunk trim. The connection diagram is typical for cars of the early 2000s: power goes through fuse F10 (10A) (for brake lights) and F15 (10A) (for dimensions and turn signals). The reversing light is controlled via fuse F20 (10A) and the relay is in the block under the steering wheel.

Connection diagram for rear lights (clickable)

If one of the signals does not work, first check:

1. Integrity lamps (most often the brake light filament burns out).
2. Fuses in the block under the hood (see diagram in the manual).
3. Contacts on the headlight connector - they often oxidize due to moisture.

Typical faults and their causes

Owners Almera N16 There are five most commonly encountered tail light problems:

Malfunction	Probable Cause	Remedy
Stop light doesn't work	Burnt thread 21W in the lamp or the contacts have oxidized	Replacing the lamp, cleaning contacts
The turn signal is flashing (usually on the right)	Moisture in the headlight unit or corrosion of the socket	Drying the flashlight, replacing the socket or sealing
Dim light dimensions	Oxidation of the “mass” on the body or wear of the reflector	Cleaning the ground contact, polishing the reflector
Reverse light does not work	Fuse blown F20 or the box sensor is faulty	Checking the fuse, diagnosing the sensor
Cracks in the headlight plastic	Natural aging of plastic or mechanical damage	Headlight replacement or polymer repair

Important: if after replacing the lamp the brake light still does not work, check the brake light relay (located in the unit under the steering wheel). Its article number is 25230-4M000.

How to replace a taillight bulb: step-by-step instructions

Replacing the lamp in Almera N16 takes no more than 10 minutes. You will need:

• 🔧 Flathead screwdriver (for removing trim)
• 🧤 Gloves (to avoid leaving greasy marks on the glass)
• 💡 New lamp (see article numbers below)

Algorithm of actions:

1. Open the trunk and remove the plastic trim from the side of the problematic headlight (it is secured with 3-4 clips).
2. Disconnect power connector from the flashlight by pressing the latch.
3. Turn the lamp socket counterclockwise and remove it.
4. Replace the lamp with a new one, without touching the glass flask (fat traces reduce service life).
5. Reassemble everything in reverse order.

⚠️ Attention: If the brake light bulb stays on full after replacement, check ground contact on the body under the trunk trim. Its oxidation is a common cause of such a malfunction.

Articles and analogues of original lamps

In the taillights Nissan Almera N16 standard lamps are used, which are easy to find in car dealerships. Original articles and their analogues:

Lamp type	Original article	Analogues (brands)	Price, ₽
Brake light/marker (P21/5W)	26500-4M000	Philips 12362PRB2, Osram 21/5W, Narva 47669	150–400
Turn signal (PY21W)	26510-4M000	Bosch 1 987 302 031, GE Lighting 57220	100–300
Reversing light (W16W)	26520-4M000	Koito W016, Hella 8GP 007 137-121	80–250
Dimensions (W5W)	26530-4M000	Osram 2825, Philips 12967WVB2, MTF Light 5W	50–200

To improve visibility, you can set LED lamps, but keep in mind:

• 🔹 Suitable for brake lights LED P21/5W with a resistor (for example, Philips X-tremeUltinon).
• 🔹 Turn signals require trouble-free LED with a decoy function (otherwise there will be hyper-blinking).
• 🔹 Dimensions and reversing light are compatible with LED W5W And W16W without modifications.

Cracked Headlight Repair: Sealing and Polishing

Plastic rear lights Almera N16 Over time it becomes cloudy and cracks due to temperature changes. If the damage is not critical, the lamp can be repaired:

Method 1: Sealing cracks

1. Clean the headlight isopropyl alcohol from dirt.
2. Apply along the edges of the crack sealant for plastic (For example, 3M Scotch-Weld DP8005).
3. Seal the crack polyurethane film from the inside (sold in headlight repair shops).
4. Dry for 24 hours under UV lamp (accelerates polymerization).

Method 2: Polishing cloudy plastic

• 🧴 Use abrasive paste (For example, Meguiar’s PlastX).
• 🔴 Polish soft cloth at low grinder speeds (maximum 1500 rpm).
• 🛡️ After polishing, apply protective coating (For example, Cerakote Ceramic Trim Coat).

⚠️ Attention: If the crack goes through reflector, repair is useless - the entire headlight unit needs to be replaced. Moisture inside will lead to corrosion of the contacts.

Replacing the entire taillight: articles and nuances

If the lamp is severely damaged (for example, after an accident), it is easier to replace it entirely. Original and non-original options:

Headlight type	Original article	Analogues (brands)	Price, ₽
Left (driver's)	26010-4M000	TYC 11-6103-00-1, Depo 335-1107L-AS	3 500–8 000
Right (passenger)	26010-4M001	Hella 8FL 007 137-841, Valeo 087232	3 500–8 000

Replacement process:

1. Remove the trunk trim and disconnect power connector.
2. Unscrew three fastening nuts headlights (key on 10 mm).
3. Carefully pull out the headlight without damaging the rubber seal.
4. Install a new headlight, connect the connector and check the operation of all signals.

Important: When installing a non-original headlight, check connector compatibility — some Chinese analogues have mirrored contacts!

Common repair mistakes and how to avoid them

Even experienced car owners make mistakes when working with tail lights. Here are the most common:

• 🔌 Ignoring contact oxidation — leads to repeated burnout of the lamps. Solution: clean contacts sandpaper P800 and process lithol.
• 💡 Installing LED without cheating in turn signals - causes hyper-blinking. Solution: use lamps with a built-in resistor (for example, Morimoto XB LED).
• 🔧 Tightening the fastening nuts - leads to plastic cracks. Solution: tighten firmly 0.8–1.0 Nm.
• 🚫 Buying lamps without checking the base — P21/5W And PY21W similar in appearance, but not interchangeable.

Another typical problem is moisture ingress after replacing the headlight. To avoid this:

1. Check integrity sealing gum on a new headlight.
2. Apply to the junction of the headlight and body sealant for car glass (For example, Dow Corning 7091).
3. After installation, spray the headlight with water from a hose - if moisture seeps in, you will immediately see where it is.

FAQ: Answers to frequently asked questions

Is it possible to install LED lamps in the taillights without errors?

Yes, but you need to choose models with built-in snag (For example, Philips X-tremeUltinon for brake lights). For turn signals, lamps with 6 ohm resistor (For example, Osram LEDriving). Without deception, there will be hyper-flashing or an error on the dashboard.

Why does the brake light turn dim after replacing the bulb?

There are two reasons:

1. Oxidation of the "mass" on the body under the trunk trim (clean the contact).
2. Poor quality lamp — check it on another car or install the original.

How to remove a headlight if the nuts are stuck?

Use penetrating lubricant (For example, WD-40 Specialist) and let it run for 10–15 minutes. If that doesn't help, heat the nut construction hairdryer (do not overheat the plastic of the headlight!). As a last resort, cut off the nut with a grinder and install a new one.

Where to buy an original headlight for Almera N16?

Original headlights (26010-4M000/26010-4M001) can be ordered:

• From official dealers Nissan (price ~8,000 ₽).
• On Exist.ru or Autodoc (price ~5,000–6,500 RUR).
• On Avito (used options from 2,000 ₽).

Check before purchasing reflector condition — on used headlights it often burns out.

What to do if the turn signal does not work after replacing the headlight?

Most likely the problem is:

1. Incorrect connector connection - check the polarity (contact 4 on the connector is responsible for the turn signal).
2. Blown fuse F15 (10A).
3. Broken wire in the harness (ring a tester from the connector to the fuse box).