Rear left brake pipe on Nissan Almera Classic (B10) is a critical element of the system on which braking efficiency and safety depend. Over time, metal tubes rust, crack or fray, leading to brake fluid leaks and a drop in pressure in the circuit. If you notice wet spots on the inside of the rear wheel or the brake pedal has become “soft,” the problem may lie in a damaged tube.
In this article we will analyze in detail how to diagnose a malfunction, select an original or high-quality analog handset, and also perform the replacement yourself - with photos, diagrams and step-by-step recommendations. We will pay special attention to typical mistakes that are made when working with the brake system. Almera Classic, and the nuances of pumping circuits after repairs.
Signs of a bad rear left brake pipe
The first symptoms of tube damage often go unnoticed until the problem becomes critical. Here are the key signals to pay attention to:
- 🔴 Brake fluid leak — traces of smudges on the crankcase guard, suspension arm or the inside of the wheel. The liquid has a characteristic yellow tint and an oily consistency.
- 🚗 Increased brake pedal travel — the pedal “falls” or requires more effort to operate. This indicates a loss of pressure in the rear circuit.
- 🔧 Uneven braking — the car pulls to the left when you press the brake (due to a pressure imbalance between the wheels).
- ⚠️ ABS lamp comes on — if the sensor detects unstable pressure in the circuit, an error may appear on the dashboard.
On Nissan Almera Classic the rear left tube is especially vulnerable due to its close location to rear suspension arm and possible contact with road dirt. Corrosion often begins at the places where the clamps are attached or at the bends of the tube. If you find at least one of the listed signs, inspect the tube visually - even a microcrack can lead to complete brake failure.
⚠️ Attention: If brake fluid is actively leaking (drops are visible to the naked eye), it is prohibited to operate the vehicle! Even a short trip with such a malfunction can lead to complete failure of the braking system.
- Once a year
- Only when symptoms appear
- Never checked
- I trust service station diagnostics
Which brake pipe to choose for Nissan Almera Classic
There are three tube options on the market for the rear left circuit Almera Classic (B10 body, 2006–2012): original, non-original analogs and universal. Each has its pros and cons.
| Tube type | Article/Brand | Pros | Cons | Price, rub. |
|---|---|---|---|---|
| Original (Nissan) | 40520-BM00A |
Perfect Fit, Corrosion Resistant, Manufacturer's Warranty | High cost, long wait when ordering | 2 800–3 500 |
| Analogue (TRW) | PFH1034 |
Quality is not inferior to the original, wide availability | Slight deviations in length are possible | 1 800–2 300 |
| Analogue (Febi) | 26180 |
Budget alternative, suitable for most modifications | Thin-walled, less resource | 1 200–1 600 |
| Universal (copper) | — | Can be made to size, low price | Requires bending and soldering, short-lived | 500–900 |
For Almera Classic the best choice would be tubes TRW or Febi — they are certified for Japanese cars and have corrosion protection. It is advisable to buy original pipes only when completely replacing brake lines. Universal copper tubes are suitable as a temporary solution, but their service life rarely exceeds 1–2 years.
When purchasing, pay attention to:
- 📏 Tube length - must match the original (about 650 mm for the rear left).
- 🔩 Thread type - on Almera Classic metric thread is used
M10×1.0. - 🛡️ Coverage — tubes with a zinc or polymer protective layer are preferred.
Before purchasing, compare the tube part numbers for your modification Almera Classic. On cars with ABS (article no. 40520-BM00A) and without it (article 40520-4M000) different parts are used!
Tools and materials for replacement
To replace the rear left brake pipe yourself with Nissan Almera Classic you will need:
Jack and supports (or lift)
Set of open-end wrenches (10, 12, 14 mm)
Socket heads with extension
Pipe wrench (for loosening soured joints)
Pliers and round nose pliers
New brake pipe with fittings
Brake fluid DOT-4 (1 liter)
Bleeding hose and fluid container
WD-40 or similar
Protective gloves and glasses-->
Pay special attention brake fluid - on Almera Classic used DOT-4. Don't mix it with DOT-3 or DOT-5.1, as this will lead to destruction of the seals. Also prepare wire brush for cleaning threaded connections and fum tape (if the tube has threaded fittings).
If the tube is severely corroded, it may be necessary to grinder or hacksaw for a neat cut of the old part. In this case, buy in advance new copper washers (article 40526-4M000) for sealing connections.
⚠️ Attention: Never use thread sealant on brake pipes! Even specialized anaerobic compounds can clog the ABS or caliper channels, leading to system failure.
Step-by-step instructions for replacing the tube
The process of replacing the rear left brake pipe with Nissan Almera Classic takes 2–3 hours if you have experience. Follow the algorithm:
- Preparing the car
Place the car on a level surface, tighten the handbrake and place stands under the front wheels. Loosen the rear left wheel bolts, then jack up the vehicle and remove the wheel. Clean any dirt around the brake hose and tube using a wire brush.
- Draining brake fluid
Open the hood and unscrew the brake fluid reservoir cap. Place the bleeder hose onto the rear wheel working cylinder fitting and lower the other end into a container. Unscrew the fitting with the key to
8 mmand drain the liquid (about 100–150 ml). - Removing the old tube
Disconnect the tube from the brake hose (key on
10 mm) and from the working cylinder (key on12 mm). Carefully bend the fastening clamps holding the tube along the body. If the compounds have become acidic, treat themWD-40and wait 10–15 minutes.What to do if the tube breaks when unscrewing?
If the tube breaks, use extractor for broken bolts or drill out the remains with a drill
8.5 mm. After this, cut a new thread with a tapM10×1.0and install the repair fitting (part number40529-4M000). - Installing a new handset
Pass the new tube along the body, securing it in the standard clamps. Connect to the working cylinder and brake hose, having previously lubricated the threads with graphite lubricant. Tighten connections firmly
15–20 Nm(do not overtighten!). - Bleeding the brakes
Fill with new fluid
DOT-4into the tank and bleed the rear left circuit according to the following diagram:pedal → release → tighten the fitting → repeat. Pump until clear, bubble-free liquid comes out of the hose.
After replacement, check the tightness of the connections: start the engine, press the brake pedal and inspect the tube for leaks. If everything is in order, install the wheel and lower the car.
On Nissan Almera Classic with ABS, brake bleeding must be done using a scanner (for example, Launch X431) to open the valve body valves. Without this, air may remain in the system!
Typical replacement mistakes and how to avoid them
Even experienced car owners make mistakes that lead to repeated leaks or malfunctions of the brake system. Here are the most common:
- 🔧 Retightening of threaded connections - leads to thread failure on the working cylinder or ABS block. Use a torque wrench!
- 💧 Using old brake fluid - even if it looks clean, moisture and wear products accumulate in it. Always fill with new fluid.
- 🔄 Incorrect pumping — if the sequence is not followed (rear right → rear left → front right → front left), air will remain in the system.
- 🛠️ Ignoring corrosion on fasteners - rusty clamps can damage the new tube. Clean or replace them.
Another common problem is tube bend during installation. On Almera Classic the rear left tube runs next to fuel tank And suspension arm. Make sure it does not touch any sharp edges and is not stretched. Optimal bending radius - not less than 50 mm.
If the brake pedal remains soft after replacement, check:
- Tightness of all connections (leaks or wet spots).
- The fluid level in the reservoir (should be between
MINAndMAX). - Operation of the vacuum booster (if there is a malfunction, the pedal is hard).
When other components of the brake system need to be replaced
Replacing a brake line is a good time to check the related parts. On Nissan Almera Classic often wear out:
| element | Symptoms of a problem | Recommendation |
|---|---|---|
| Brake hoses | Cracks, swelling, fluid leaks | Replace with a pair (left + right) |
| Working cylinders | Piston souring, jamming | Replacement or repair with new cuffs |
| Pads and discs | Creaking, vibration when braking, pad thickness < 2 mm | Replacing the set (pads + discs) |
| Brake fluid reservoir | Cracks, cloudy liquid | Replacing the tank (item no. 40500-4M000) |
If you notice that the brake fluid in the reservoir has darkened or flakes are visible in it, this is a signal contamination of the entire system. In this case, a complete fluid replacement will be required, with the circuits flushed with a special compound (for example, LIQUI MOLY Bremsen-Reiniger).
On vehicles with more than 150,000 km it is recommended to check the condition master cylinder (article 40510-4M000). Its wear is manifested by “dips” of the pedal or leaks under the vacuum booster.
Cost of service replacement vs self-repair
Rear left brake pipe replacement cost Nissan Almera Classic in service depends on the region and level of the service station:
- 🔧 Official dealer — 4,000–6,000 rub. (with spare parts).
- 🏁 Independent service — 2,500–4,000 rub. (excluding details).
- 👨🔧 On your own — 1,200–2,500 rub. (spare parts + liquid only).
Savings when repairing yourself is 50–70%, but only if you have the tools and experience working with the brake system. Otherwise, the risk of errors (for example, incorrect pumping) may result in additional costs.
Is it worth contacting the service?
- ✅ Yes, if the tube bursts on the way and urgent intervention is needed.
- ✅ Yes, if you don't have a torque wrench or scanner to bleed ABS.
- ❌ No, if you are confident in your abilities and are willing to spend time on a thorough check.
Some service stations offer “repair” of brake pipes using soldering. On Almera Classic this is unacceptable - the soldered seam will not withstand the pressure in the system and will burst during the first intense braking!
FAQ: Frequently asked questions about brake pipes Nissan Almera Classic
Is it possible to drive if the rear left brake pipe is leaking?
No! Even a small leak leads to an imbalance of braking forces between the wheels, which can lead to skidding when braking. If the pipe is leaking, call a tow truck or have the car towed for repairs.
How to distinguish the front tube from the back?
On Almera Classic the rear tubes are longer (about 650 mm) and have an angled bend 90° to bypass the suspension arm. The front tubes are shorter (400–450 mm) and straight. Also pay attention to the article numbers: numbers are used for the rear ones 40520-..., for the front ones - 40510-....
What should I do if the ABS light comes on after replacing the tube?
This means that there is air left in the system or the ABS sensor is faulty. Bleed the brakes using a scanner (for example, Launch CReader) to clear the error. If the lamp does not go out, check the rear left wheel sensor circuit (the connector may be oxidized).
How often should brake lines be replaced?
The manufacturer does not set a scheduled replacement period, but in practice the tubes serve 8–12 years or 150,000–200,000 km. In regions with aggressive winters (salt, reagents), the resource is reduced to 5–7 years. Check the condition of the tubes at every maintenance!
Can I use DOT-5 brake fluid instead of DOT-4?
No! DOT-5 is made on a silicone basis and is incompatible with rubber seals Almera Classic. Its use will lead to swelling of the cuffs and failure of the working cylinders. Use only DOT-4 (article KE903-99932 for original Nissan fluid).