Rear drum <em>Nissan Almera G15</em>: how to diagnose and fix problems

Nissan Almera G15 is a popular sedan that is valued for its reliability and unpretentiousness. However, even on such cars, the brakes wear out over time, and rear drum - is no exception. If you notice squeaking, vibration or deterioration in braking dynamics, the problem may lie there.

In this article we will look at how to independently diagnose rear drum faults on Almera G15, what tools will be needed for replacement, and what to look for when choosing spare parts. You will also find step-by-step instructions with photos, typical beginner mistakes and tips for extending the service life of the brake system.

Signs of wear on the rear drum Nissan Almera G15

The rear drum is not just a metal disc, but a key element of the braking system. Its wear and tear does not appear immediately, but it is dangerous to ignore the symptoms. Here's what you should pay attention to:

• 🔊 Creaking or grinding when braking, this is the first signal that the friction layer of the pads has worn down to metal and is scratching the drum.
• 🌀 Vibration on the brake pedal or steering wheel, especially during sudden deceleration. This is a sign drum deformation due to overheating.
• 🚗 Pulling the car to the side when braking - may indicate uneven wear on the drums or jammed pads.
• 🔥 Overheating of the rear wheels after the trip. If the drum is too hot, this indicates metal-on-metal friction.

If any of these symptoms appear, check the condition of the drums. On Almera G15 critical wear occurs when the wall thickness is less than 1.5 mm or when deep furrows appear. You can check this with a caliper or visually - if grooves with a depth of more than 0.5 mm, the part must be replaced.

⚠️ Attention! If the drum is cracked or chipped, you cannot drive such a car. Even a small crack under load can lead to part failure and complete loss of brakes.

Which drums are suitable for Nissan Almera G15: original vs analogues

When selecting the rear drum for Almera G15 (body N17, 2012–2019) it is important to consider not only price, but also compatibility. Original parts from Nissan have an article number 40520-BM400 (right) and 40521-BM400 (left), but they are often overpriced. Let's look at the alternatives:

Brand	Article	Price (per piece), ₽	Features
Nissan (original)	40520-BM400 / 40521-BM400	5 000–7 000	Guaranteed quality, but high price. Suitable for all modifications Almera G15.
ABS	30-06-024	2 500–3 500	Good price/quality ratio, often installed in services.
TRW	GDB1446	3 800–4 500	Premium segment, increased wear resistance.
Febi	23600	2 200–3 000	A budget option, but there are fakes.

When purchasing analogues, pay attention to:

• 🔍 Drum diameter - must be 230 mm (for Almera G15 with engines HR16DE And K4M).
• 📏 Wall thickness - no less 4 mm for new parts.
• 🛡️ Availability of certificate (For example, ECE R90) - guarantee of compliance with safety standards.

If you are buying used drums, check them for beating (admission - no more 0.1 mm) and lack of corrosion. Even small rust spots on the inside can accelerate pad wear.

Tools and preparation for replacing the rear drum

Replacing the rear drum with Nissan Almera G15 - a task of medium complexity. If you have experience working with the brake system, you can do it in 2-3 hours. Beginners will need more time, but the main thing is to take your time and follow the instructions.

Here's what you'll need:

• 🔧 Set of sockets and keys (required 17 mm, 19 mm And 12 mm).
• 🔨 Hammer (preferably rubber or with a plastic tip).
• 🔩 Drum puller (you can do without it, but it’s easier with it).
• 🧰 WD-40 or equivalent - for unscrewing stuck nuts.
• 🛠️ Vernier caliper - to measure wear.
• 👓 Safety glasses and gloves — Brake dust is harmful to health!

Before starting work:

1. Park the car flat surface and secure the front wheels with chocks.
2. Loosen the rear wheel nuts, but do not remove it completely.
3. Raise the car with a jack and install a safety stand.
4. Remove the wheel and clean the brake mechanism from dirt.

⚠️ Attention! Never work on the brake system on a vehicle that is only supported by a jack. Always use safety stands to prevent serious injury.

Loosen the wheel nuts|Raise the car and install stands|Clear the brake mechanism of any dirt|Check that all tools are present|Wear safety glasses and gloves-->

Step-by-step instructions for removing and installing the rear drum

Now let's move on to the process itself. On Nissan Almera G15 The rear drum is mounted on the hub and held in place by guide pins. Here's how to dismantle it:

1. Remove the brake drum:

   • Unscrew the guide pins (usually 2 pcs.) key to 12 mm.
   • If the drum does not come off, gently tap it on the back side with a rubber mallet.
   • If the drum is stuck, use a puller or heat it evenly with a hair dryer (do not overheat!).

2. Check the condition of the pads and springs:

   After removing the drum, inspect brake pads, spacer bar And return springs. If the pads are worn (the friction layer thickness is less than 1.5 mm), they also need to be replaced.

3. Install a new drum:

   • Clean the hub seat from rust and dirt.
   • Apply a thin layer copper grease on the center of the hub (not on the braking surface!).
   • Install the drum and secure it with the guide pins.

Adjust the parking brake:

After installing the drum, check the tension of the handbrake cable. If it is too loose or tight, adjust it using the nut under the car (next to the handbrake lever).

After assembly, press the brake pedal several times until the pads are in working position. Then test the brakes while driving, at low speed first.

What to do if the drum cannot be removed?

If the drum is stuck and does not budge even after heating, try the following method:

1. Generously spray the joint area with WD-40 and wait 10-15 minutes.

2. Screw the guide pins back (not all the way) and try to rotate the drum.

3. If this does not help, use a three-arm puller or contact service - further attempts may damage the hub.

Common mistakes when replacing a rear drum and how to avoid them

Even experienced car owners sometimes make mistakes that lead to rapid drum failure. Here are the most common mistakes:

• 🔧 Using a percussion instrument (for example, sledgehammers) to remove the drum. This may deform the hub or damage the bearing.
• 🧴 Applying lubricant to the braking surface drum or pads. This will lead to slipping and poor braking.
• 🔩 Improperly tightened guide pins. If they are overtightened, the drum may become deformed.
• 🚗 Ignoring handbrake adjustment after installation. This will lead to uneven pad wear.

Another common mistake is installation of drums of different brands or with different degrees of wear on the left and right side. This causes an imbalance of braking forces and the car pulls when braking. Always change drums in pairs, even if one of them looks fine.

⚠️ Attention! If after replacing the drum there is extraneous noise (such as a hum or whistle), stop immediately and check:

• Correct installation of the pads (they should not touch the brake shield).
• No foreign objects between the drum and the hub.
• Parking brake cable tension.

How to extend the life of your rear drums Nissan Almera G15

Average resource of rear drums Almera G15 — 100,000–150,000 km, but with aggressive driving or poor care they can fail much earlier. Here's how to delay their replacement as much as possible:

• 🚦 Avoid hard braking at high speed - this leads to overheating and deformation of the drum.
• 🔧 Check your brake pads regularly - worn out pads scratch the drum, accelerating its destruction.
• 💧 Wash your brakes 1–2 times a year (for example, before winter). Use special cleaners, not water!
• 🔄 Adjust the parking brake every 20,000 km. A handbrake that is too tight will cause premature wear.

Also pay attention to pad quality. Cheap friction materials wear out the drum faster. The best choice for Almera G15 - pads Nissan (40500-BM400) or analogues from Ferodo, Brembo.

If you frequently drive off-road or in rainy weather, the drums will wear out faster due to dirt and moisture. In this case, it is recommended every 10,000 km remove them and clean them of corrosion.

When to call for service and when to handle it yourself

Replacing the rear drum with Nissan Almera G15 - a task that can be tackled in the garage if you have a minimum set of tools and patience. However, in some cases it is better to trust the professionals:

• 🔧 If the drum is stuck and cannot be removed despite all efforts. The service will remove it without the risk of damaging the hub.
• 🔄 If the wheel bearing needs to be replaced - this work is more difficult and requires a special puller.
• 🚨 If after replacement the brakes operate unevenly (for example, one wheel locks before the other).
• 📉 If you are not confident in your skills - Errors in the braking system can cost lives.

The cost of replacing the rear drum in the service for Almera G15 amounts to 1 500–3 000 ₽ for one wheel (excluding the cost of parts). If you decide to do this yourself, make sure that:

• Do you have safety stands (not just the jack!).
• Do you understand operating principle drum brakes.
• Are you ready spend 3–4 hours for the first replacement (in the future it will be faster).

If you have never worked with a brake system, practice disassembling or watch video instructions specifically for Almera G15 - this will help avoid mistakes.

FAQ: Frequently asked questions about rear drums Nissan Almera G15

Is it possible to sharpen the drums instead of replacing them?

Yes, but only if their thickness after grooving remains at least 4 mm (for Almera G15). Grooving is cheaper (about 1 000 ₽ per piece), but this is a temporary solution - the new drum will still last longer. Also note that the groove requires perfect balancing, otherwise vibration will occur.

How often should you check your rear drums?

It is recommended to inspect them every 30,000 km or once a year. If you notice signs of wear (creaking, vibration), an inspection should be carried out immediately. On Almera G15 with mileage over 100,000 km It's better to check the drums every 20,000 km.

Why did the brakes get worse after replacing the drum?

Possible reasons:

• The pads have not gotten used to the new drum (you need to drive 100–200 km in gentle mode).
• The parking brake cable is too tight.
• The drum or pads are of poor quality (check the certificates).
• Dirt or grease has entered the brake mechanism.

If the problem does not disappear after running in, contact service.

Can drums from other Nissan models be installed?

No, even if they are visually similar. For example, drums from Nissan Note or Micra will not fit - they have a different diameter and fitting dimensions. Use only parts intended for Almera G15 (body N17).

What to do if the drum is cracked?

Driving with a cracked drum absolutely not possible - it can collapse when braking. Replace the part immediately and check what caused the crack (usually overheating or mechanical damage). Also inspect the hub and bearing - they may have been damaged.