Nissan Almera Classic is a popular sedan known for its reliability and unpretentiousness. However, even the most proven models eventually wear out critical components, such as the **rear brake cylinder**. This element is responsible for uniform distribution of brake fluid and pressure on the pads, ensuring effective braking. If a cylinder fails, the consequences can be dangerous: from a fluid leak to complete brake failure on one of the rear wheels.

In this article we will look at how to recognize problems with the rear brake cylinder on time. Almera Classic (including versions with bodies N16 And B10), what tools will be needed for replacement, and how to avoid common mistakes during repairs. We will pay special attention to the selection of original and analog spare parts, as well as the nuances of bleeding the brake system after installing a new cylinder.

Signs of a bad rear brake cylinder

The first symptoms of rear brake cylinder problems often go unnoticed until the situation becomes critical. Experienced car owners recommend paying attention to the following signals:

  • 🔴 Brake fluid leaks on the inside of the rear wheel or near the caliper. The liquid has a characteristic yellowish tint and an oily consistency.
  • 🚗 Pulling the car to the side when braking, especially at low speeds. This indicates uneven distribution of braking force.
  • 🛑 Increased brake pedal travel or its "softness". The pedal may fall almost to the floor, which indicates a loss of pressure in the system.
  • 🔊 Creaks or strange sounds from the rear wheels when pressing the brake. This is often due to misalignment of the pads due to a faulty cylinder.

If you notice at least one of these signs, you need to urgently check the condition of the cylinders. On Nissan Almera Classic with a mileage of more than 150,000 km, the risk of failure of the rear brake cylinders increases 3 times due to natural wear of the seals. Neglecting the problem can lead to complete failure of the brakes on one of the wheels, which is especially dangerous when driving downhill or in rainy weather.

⚠️ Attention: If, after pressing the brake pedal, the car continues to move slowly even with the pedal fully depressed, this is a sign complete cylinder failure. In this case, operating the vehicle is prohibited!

Diagnostics of the rear brake cylinder on Nissan Almera Classic

Before replacing a cylinder, it is necessary to confirm that it is faulty. You can carry out diagnostics yourself, without resorting to the help of a service station. Here is a step-by-step algorithm:

  1. Visual inspection. Remove the rear wheel and inspect the brake mechanism. Please note:
    • 💧 Traces of brake fluid on or near the cylinder.
    • 🔧 Corrosion or mechanical damage to the cylinder body.
    • 🧹 Dirt on the pads - they may indicate a fluid leak.
  • Checking the piston stroke. Have an assistant press the brake pedal while you watch the movement of the cylinder pistons. If one of the pistons does not move or moves unevenly, the cylinder is faulty.
  • Leak test. Press the brake pedal and hold it down for 30–60 seconds. If the pedal slowly sinks, this indicates a leak in the cylinder or line.

    • For more accurate diagnosis, you can use brake pressure gauge, which connects to the bleeder fitting. The pressure on the rear wheels should be the same (within 8–10 bar for Almera Classic). A difference of more than 2 bar indicates a cylinder malfunction or a clogged line.

    📊 How often do you check your car's brake system?
    • Once a year
    • Every 20,000 km
    • Only when problems arise
    • Never checked

    Selection of spare parts: original vs analogues

    When replacing the rear brake cylinder with Nissan Almera Classic The car owner is faced with a choice: buy an original part or an analogue. Original cylinders from Nissan (article 40520-4M000 for the left side and 40521-4M000 for the right one) guarantee full compatibility and long service life, but their price can reach 5,000–7,000 rubles per piece. At the same time, high-quality analogues will cost 2–3 times less.

    Brand Article Price (for 1 piece), ₽ Features
    Nissan (original) 40520-4M000 / 40521-4M000 5 000–7 000 2 year warranty, fully compatible
    ABS 340520 / 340521 1 800–2 200 Good quality seals, popular choice
    TRW GTC1445 2 500–3 000 Reinforced body, suitable for aggressive riding
    Fenox TC20002O7 / TC20003O7 1 500–1 900 Budget option, average quality

    When choosing an analogue, pay attention to:

    • 🔍 Case material. Optimally - aluminum or high-strength steel. Plastic parts crack quickly.
    • 🛡️ Quality of seals. They must be made of heat-resistant rubber (for example, EPDM).
    • 📦 Complete set. The kit should include new boots and guides.
    ⚠️ Attention: By purchasing cylinders in pairs (for both wheels), you will save on replacement work in the future. Practice shows that if one cylinder fails, the second will soon follow suit.
    💡

    Before purchasing, check whether the article is suitable for your modification Almera Classic. For example, for versions with ABS Cylinders with different mounting may be required.

    Step-by-step instructions for replacing the rear brake cylinder

    Replacing the rear brake cylinder with Nissan Almera Classic - a task of medium complexity that requires accuracy and compliance with safety precautions. If you have the tools and minimal experience working with the brake system, you can handle it in 2–3 hours. You will need:

    • 🔧 Set of open-end and spanner wrenches (sizes 10, 12, 14 mm).
    • 🔨 Socket heads with extension.
    • 🛠️ Special wrench for bleeder fittings (usually 8 or 9 mm).
    • 🧴Brake fluid DOT-4 (at least 0.5 l).
    • 🧽 Rags and brake cleaner (e.g. BRAKE CLEANER).
    • 🚗 Jack and wheel stops.

    Before starting work, be sure to:

    1. Place the car on a level surface and secure the front wheels with chocks.
    2. Loosen the nuts of the rear wheel you will be repairing.
    3. Raise the car with a jack and remove the wheel.
    4. Clean the brake mechanism from dirt and dust.

    Loosen the wheel nuts|Raise the car|Remove the wheel|Clean the brake mechanism|Prepare a new cylinder and tools-->

    Next follow the instructions:

    1. Remove the brake drum. To do this, unscrew the guide pins (if any) and carefully knock the drum with a hammer through the wooden spacer. If the drum is stuck, use a puller or WD-40.
    2. Disconnect the brake line. Using a 10 mm wrench, unscrew the fitting, first placing a container to drain the liquid. Do not press the brake pedal after disconnecting the line!
    3. Remove the old cylinder. Unscrew the two bolts securing the cylinder to the brake shield (usually 12 or 14 mm in size) and carefully remove it.
    4. Install a new cylinder. Before installation, apply a thin layer of brake lubricant to the pistons and seals. Secure the cylinder with bolts, but do not fully tighten them.
    5. Connect the brake line. Tighten the fitting with a force of 15–20 Nm. Make sure there are no leaks.
    6. Bleed the brake system. This is a mandatory step! Without bleeding, air will remain in the system and the brakes will not function effectively.
    How to remove a stuck brake drum?

    If the drum does not come off even after applying WD-40, try the following method:

    1. Screw back the guide pins (if they were unscrewed).

    2. Using sharp but gentle blows of the hammer through a wooden block, tap the drum in a circle.

    3. If this does not help, heat the drum evenly with a heat gun (do not overheat!).

    4. Retry removal. In 90% of cases the drum will move.

    Bleeding the brake system after replacing the cylinder

    Bleeding your brakes is a critical step that should not be skipped. Air in the system causes a soft brake pedal and reduced braking efficiency. For Nissan Almera Classic It is recommended to use the “criss-cross” pumping method:

    1. Rear right wheel → front left → rear left → front right.

    Procedure:

    1. Place a transparent hose onto the bleeder fitting and lower the other end into a container with brake fluid.
    2. Ask an assistant to press the brake pedal 3-4 times and hold it down.
    3. Unscrew the fitting 1/2 turn. Liquid with air bubbles will come out of the hose. Tighten the fitting when the liquid stops flowing out.
    4. Repeat the process until there are no air bubbles left in the liquid.
    5. Check the fluid level in the reservoir and add if necessary.

    After pumping, be sure to check:

    • 🔧 No leaks at joints.
    • 🚗 Brake pedal travel - it should be elastic and not fall through.
    • 🛑 Braking efficiency at low speed (for example, 20–30 km/h).
    ⚠️ Attention: If the pedal remains soft after bleeding, check:
    • Tightness of all connections.
    • Condition of the brake hoses (they may be pinched or cracked).
    • Fluid level in the reservoir (if the level is low, air may enter the system again).
    💡

    Bleeding the brakes is mandatory even if you have not disconnected the line! When replacing a cylinder, air may enter the system through loose connections.

    Typical mistakes when replacing a rear brake cylinder

    Even experienced car owners sometimes make mistakes that lead to repeated malfunctions or deterioration of braking performance. Here are the most common ones:

    • 🔧 Using old brake fluid. The liquid is hygroscopic and accumulates moisture over time, which lowers its boiling point. Always use fresh liquid DOT-4.
    • 🧴 Lack of lubricant on the pistons of the new cylinder. This leads to their jamming after 10–15 thousand km. Use special brake lubricant (eg SLIPKOTE 220-R DBC).
    • 🛠️ Tightening the cylinder mounting bolts. This may deform the housing or pistons. Tightening torque: 20–25 Nm.
    • 🚗 Ignoring checking the brake pads. Worn pads accelerate wear on the new cylinder. When replacing a cylinder, always evaluate the condition of the pads and drums.

    Another common mistake is incorrect installation of anthers. They must be put on without twisting and fit snugly to the cylinder body. If the boot is damaged or installed incorrectly, dirt will enter the cylinder and it will quickly fail.

    Also, many people forget to check the condition brake hoses. On Almera Classic With a mileage of more than 100,000 km, hoses often crack or delaminate from the inside, which leads to air leaks and fluid leaks. When replacing cylinders, inspect the hoses for:

    • 🔍 Cracks or scuffs on the surface.
    • 💧 Traces of brake fluid at the attachment points.
    • 🛡️ Swelling or deformation (especially if low-quality liquid was previously used).

    Prevention and extension of service life of brake cylinders

    Average service life of rear brake cylinders Nissan Almera Classic is 100–150 thousand km, but with proper maintenance this figure can be increased to 200 thousand km. Here are the key recommendations:

    • 🔄 Regular replacement of brake fluid. It needs to be changed every 2 years or 40,000 km, even if the level is normal. Old fluid loses its properties and accelerates wear of the seals.
    • 🧴 Use of high-quality lubricants. Apply brake lubricant to the cylinder guides and pistons whenever the brakes are serviced.
    • 🚿 Washing brake mechanisms. Every 10,000 km, clean the cylinders and pads from dirt and dust using special cleaners (for example, LIQUI MOLY Bremsen-Reiniger).
    • 🛑 Smooth braking. Avoid sudden or prolonged pressure on the brake pedal, especially at high speeds. This reduces the load on the cylinders.

    Pay special attention winter operation. During the cold season:

    • 🌡️ Before driving, gently press the brake pedal several times to disperse the fluid through the system and avoid condensate freezing.
    • 🚘 After driving through puddles or slush, dry the brakes by lightly pressing the pedal while driving.
    • 🔧 Check the brake fluid level more often than usual - in winter, its consumption may increase due to condensation.

    If you frequently drive off-road or in wet conditions, it is recommended that you remove the rear drums every 6 months and inspect the cylinders for corrosion. On Nissan Almera Classic Cylinders produced in 2006–2012 have a weak anti-corrosion coating and therefore require more frequent maintenance.

    FAQ: Frequently asked questions about rear brake cylinders Nissan Almera Classic

    Is it possible to drive if the rear brake cylinder is leaking?

    No, operating a vehicle with a leaking cylinder is prohibited! A brake fluid leak leads to a decrease in pressure in the system, which can cause brake failure on one of the wheels. In addition, liquid getting on the pads and drums reduces their efficiency. If you notice a leak, contact service immediately or replace the cylinder yourself.

    How much does it cost to replace a rear brake cylinder at a service center?

    The cost of work in the service depends on the region and level of the service station. The average prices in Russia are:

    • Replacing one cylinder costs 1,500–2,500 rubles.
    • Replacing a pair of cylinders - 2,500–4,000 rubles.
    • Bleeding the brakes - 500–1,000 rubles (often included in the cost of replacement).

    Plus the cost of spare parts. In total, for replacing two cylinders with bleeding, you will pay 6,000–12,000 rubles (with original parts).

    Do I need to replace the cylinders in pairs?

    Recommended, but not required. If one cylinder fails, the second is most likely also worn out, but still works. However, if your budget allows, it is better to replace both - this will save time and money on repeated repairs. Exception: if the second cylinder is new (recently changed) or its condition is ideal.

    How are the cylinders different? Almera Classic with or without ABS?

    Structurally, the cylinders are the same, but they may differ in the mounting and length of the bleeder fitting. For models with ABS Sometimes cylinders with an additional hole for the sensor are required. Check compatibility by VIN code or spare parts catalog. For example, for Almera Classic N16 with ABS Suitable for cylinder with art. 40520-4M010.

    Can the rear brake cylinder be repaired?

    Theoretically, yes - there are repair kits with seals and pistons on sale (for example, from Febi or Corteco). However, in practice, repairs are only justified for rare or very expensive cylinders. On Almera Classic It’s easier and more reliable to install a new cylinder, since the cost of the repair kit (800–1,200 rubles) is comparable to the price of a budget analogue. In addition, during disassembly the cylinder body can be damaged.