Nissan Almera Classic (also known as Nissan Sunny B10 in some markets) is a reliable car, but even its braking system requires attention over time. Rear brake cylinders are one of the key elements on which braking efficiency and safety depend. Their malfunction does not appear immediately, but the first symptoms cannot be ignored: this is fraught with brake failure or corrosion of the calipers.

In this article, we will look at how to independently diagnose problems with the rear cylinders, what tools will be needed for replacement, and how to avoid common mistakes during repairs. We will pay special attention to the selection of spare parts - original parts Nissan vs analogues from ATE, TRW or Febi, as well as the nuances of working with brake fluid DOT-4.

If you notice that the brake pedal has become “soft” and traces of liquid have appeared on the inside of the rear wheel rims, this is a reason to check the cylinders. Next, we’ll tell you how to do this without contacting the service.

Signs of faulty rear brake cylinders

Rear brake cylinders Almera Classic (as on most cars with drum brakes) perform two functions: they press the shoes against the drum and return them to their original position. When the cylinders become worn or corroded, braking efficiency decreases and the risk of wheel seizure increases.

Main symptoms of malfunction:

  • 🔴 Brake fluid leaks on the inside of the rear wheel or near the brake shield. The liquid has a characteristic yellow or brown tint and an oily consistency.
  • 🚗 Pulling the car to the side when braking, one of the cylinders may jam or not work at all.
  • 🛑 Increased brake pedal travel (“failures”) or its excessive rigidity. This indicates air has entered the system or there is a fluid leak.
  • 🔥 Rear drums overheating after a trip - a sign that the pads do not move away from the drum due to a jammed cylinder.

If you ignore these signs, the consequences can be serious: from premature wear of the pads and drums to complete brake failure. For example, if there is a strong fluid leak, the brake pedal may “sink” to the floor, making braking impossible.

⚠️ Attention: If, after pressing the brake pedal, it does not return to its original position, it is prohibited to operate the vehicle! This is a sign of a stuck cylinder or damaged hose. Check the system immediately.

Diagnostics of rear brake cylinders on Nissan Almera Classic

Before replacing the cylinders, it is necessary to confirm that they are faulty. Diagnostics includes visual inspection and performance testing. For this you will need:

  • 🔧 Jack and stops (or lift).
  • 🔦 Flashlight for inspecting hard-to-reach places.
  • 🧰 Keys on 10, 12 And 14 (to remove the drum).
  • 🩹 Gloves and rags (brake fluid is aggressive to paintwork!).

Step-by-step verification algorithm:

  1. Remove the rear wheel and inspect the brake drum for fluid leaks. If there are wet spots on the cylinder boot, this is a sure sign of a leak.
  2. Try turning the drum by hand. If it rotates with difficulty or does not rotate at all, the pads do not come off due to a jammed cylinder.
  3. Remove the drum (WD-40 and a hammer with a wooden spacer may be required if the drum is stuck). Assess the condition of the cylinders: corrosion, cracks on the boots or traces of liquid are a reason for replacement.
  4. Check the piston stroke. Gently press the brake pedal (have an assistant do this) and observe whether the cylinder pistons extend. If one of the pistons does not move, the cylinder is faulty.
📊 How often do you check your car's brake system?
  • Once a year
  • Every 20,000 km
  • Only when problems arise
  • Never checked

If the cylinders appear intact, but the brakes do not work effectively, the problem may lie in airiness of the system or worn brake hoses. In this case, you will need to bleed the brakes or replace the hoses.

💡

Before removing the drum, mark its position relative to the hub with chalk or a marker. This will help reinstall it without any imbalance that could cause vibration when braking.

Selection of spare parts: original vs analogues

When replacing rear brake cylinders with Nissan Almera Classic (body B10, 1995–2006) it is important to choose quality parts. Original cylinders from Nissan have an article number 40520-4M000 (for left side) and 40521-4M000 (for the right one). Their average cost is 2,500–3,500 rub. per piece. However, there are worthy analogues on the market:

Brand Article Price (for 1 piece), rub. Features
ATE 03.4506-3707.2 1 800–2 200 High quality seals, suitable for aggressive driving
TRW PC1104 2 000–2 500 Original quality, conveyor supplier Nissan
Febi 100137 1 500–1 900 Budget option, but shorter lifespan of anthers
LPR 05.1106 1 200–1 600 Suitable for a quiet ride, not recommended for taxis

When choosing analogues, pay attention to piston material (preferably stainless steel) and quality of anthers (must be elastic, without microcracks). Cheap cylinders often leak after 10–15 thousand km.

⚠️ Attention: When purchasing cylinders, check that they are complete! The box should contain: the cylinder itself, boots, retaining rings and guides. If something is missing, refuse to purchase, as these parts are difficult to find separately.

A critical point for Almera Classic: on models up to 2000, there may be cylinders with a different fastening (with a bolt M8 instead of M10). Check with the seller or check the vehicle's VIN number!

Step-by-step instructions for replacing rear brake cylinders

Replacing cylinders with Almera Classic does not require special equipment, but will require care. Approximate operating time: 2–3 hours (on both wheels). You will need:

  • 🔧 Set of keys and sockets (10, 12, 14, 17).
  • 🔨 Hammer and wooden spacer (for removing the drum).
  • 🧪Brake fluid DOT-4 (at least 0.5 l).
  • 🧴 WD-40 or similar penetrating lubricant.
  • 🧤 Gloves and safety glasses (the liquid is toxic!).

Sequence of actions:

Remove the negative terminal from the battery|Loosen the rear wheel nuts|Raise the car on a jack and install jack stands|Remove the wheel and brake drum-->

  1. Remove the brake drum. If it won't come off, spray the edges with WD-40 and gently tap the wood spacer with a hammer. Do not hit the drum with a metal hammer - it may break!
  2. Disconnect the brake pipe from the cylinder. To do this, use the key to 10. Shut up the phone a bolt or a special plug to prevent liquid from leaking out.
  3. Remove the cylinder. It is secured with two bolts on 12 or 14 (depending on the year of manufacture). Carefully remove the cylinder without damaging the pad boots.
  4. Install new cylinder. Before installation, apply a thin layer copper grease on the threads of the fasteners (but not on the pistons!). Tighten the bolts firmly 20–25 Nm.
  5. Connect the brake pipe and tighten it firmly 15–18 Nm. Make sure there are no leaks.
  6. Bleed the brakes. Start with the right rear wheel, then left rear, right front and left front. Use an assistant to press the pedal.

After replacing, check the brakes at idle speed and then at low speed (5–10 km/h). The pedal should be elastic, without dips.

💡

When bleeding the brakes, monitor the fluid level in the reservoir - it should not fall below the mark MIN. Add fluid as needed.

Typical replacement mistakes and how to avoid them

Even experienced car owners make mistakes when working with brake cylinders. Here are the most common ones and ways to prevent them:

  • 🔧 Tightening the cylinder mounting bolts — leads to housing deformation and leaks. Solution: use a torque wrench (force no more than 25 Nm).
  • 🚫 Ignoring bleeding the brakes - air in the system will make the pedal “soft”. Solution: Bleed the brakes in strict sequence (back to front).
  • 🧴 Using old brake fluid — it is hygroscopic and loses its properties after 2 years. Solution: completely replace the fluid when repairing cylinders.
  • 🔥 Dirt on cylinder pistons - leads to jamming. Solution: Clean all parts before installation with alcohol or a special cleaner.

Another common mistake is incorrect installation of anthers. If the boot is twisted or not put on all the way, dirt will get into the cylinder and it will quickly fail. Check that the boot sits evenly and does not have any creases.

What should I do if the braking force is uneven after replacing the cylinder?

If after replacement one of the wheels slows down more than the other, the reasons may be as follows:

1. The brakes are not properly bled (repeat the procedure).

2. The pad guide is jammed (lubricate it with high-temperature grease).

3. The new cylinder is defective (check the piston stroke).

4. The brake hose is worn or damaged (replace it).

Prevention: how to extend the life of brake cylinders

Rear brake cylinder service life Almera Classic depends not only on the quality of the parts, but also on the operating conditions. On average they serve 80–120 thousand km, but with aggressive driving or lack of maintenance they may fail earlier.

5 rules for extending cylinder life:

  • 🔄 Change brake fluid every 2 years - it accumulates moisture, which leads to corrosion of the cylinders.
  • 🚿 Wash your brakes when replacing pads or drums. Use special cleaners (for example, Liqui Moly Bremsen-Reiniger).
  • 🛠️ Lubricate the pad guides high temperature lubricant (for example, Slipkote 220-R DBC). This will reduce the load on the cylinders.
  • 🚗 Avoid holding the brake pedal for long periods of time at traffic lights - this leads to overheating of the cylinders.
  • 🔍 Inspect the anthers regularly for cracks. Replace at the first sign of wear.

If you often drive off-road or in rainy weather, treat the cylinders with an anti-corrosion compound (For example, WD-40 Specialist Long-Term Corrosion Inhibitor). This will protect the metal from rust.

Cost of work in the service vs self-repair

Prices for replacing rear brake cylinders in services vary depending on the region and level of the service station. On average in Russia the cost of work will be:

Service type Cost (per 1 cylinder), rub. Cost (set of 2 cylinders), rub.
Official dealer Nissan 3 000–4 500 5 000–7 500
Independent service (mid-level) 1 500–2 500 2 500–4 000
Garage workshops 800–1 500 1 500–2 500

Self-replacement will only cost the cost of spare parts (3,000–6,000 rub. per set) and brake fluid (300–500 rub.). Thus, the savings will be up to 50% compared to the dealer.

However, if you do not have experience working with the brake system, it is better to entrust the repair to professionals. Errors when replacing cylinders can lead to brake failure, which is life-threatening.

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

Is it possible to drive if one rear cylinder is leaking?

No! A brake fluid leak causes a drop in pressure in the system, which can make the brakes ineffective. In addition, liquid gets onto the pads and drums, reducing their friction properties. It is prohibited to operate the vehicle in this condition!

How often should rear brake cylinders be replaced?

The service life of the cylinders depends on operating conditions, but on average they require replacement every 100–150 thousand km or at the first signs of a malfunction (leaks, corrosion, jamming). On cars that are often parked outside in the winter, the cylinders may fail earlier due to corrosion.

How are the cylinders different? Almera Classic before and after 2000?

Models before 2000 had bolt-on cylinders M8, and then - under M10. The length and diameter of the pistons may also differ. Always check compatibility by VIN number!

Is it possible to restore old cylinders?

Theoretically, yes - some workshops offer cylinder boring and cuff replacement. However, this is a temporary solution as the cylinder body is already worn out and the risk of leakage again is high. We recommend replacing with new parts.

What brake fluid to use for Almera Classic?

The manufacturer recommends a fluid class DOT-4. Can be used Nissan Brake Fluid (article KE900-99932) or analogues from Castrol, Liqui Moly. Do not mix liquids of different classes (DOT-3, DOT-4, DOT-5.1)!