How to replace front brake pads on a Nissan Almera G15 yourself: step-by-step guide

Replacing brake pads with Nissan Almera G15 - a task that even a novice car owner can cope with with the right approach. This process does not require specialized equipment, but demands attention to detail: from choosing quality consumables to following the sequence of actions. Unlike Nissan Qashqai or X-Trail, where the caliper design may have nuances, front brake system Almera G15 is relatively simple, making it an ideal candidate for do-it-yourself maintenance.

In this article we will analyze not only the standard replacement procedure, but also typical mistakesthat owners allow when working with brakes. You will learn how to avoid uneven wear of the pads due to improper installation of the guides, why it is important to check the condition of the brake hoses and how to properly “sink” the caliper piston without damaging the boot. And also a detailed checklist of tools and consumables, which will save you from unnecessary trips to the store in the middle of repairs.

When it's time to change your pads: 5 obvious and 2 hidden signs

The manufacturer recommends checking the condition of the brake pads Almera G15 every 15–20 thousand km, but their actual service life depends on driving style, quality of consumables and operating conditions. Obvious signals for replacement:

• 🔊 Creaking or squealing when braking - this is not always an indicator of wear (can be caused by sand), but it is dangerous to ignore it.
• 📏 Friction layer thickness less than 2–3 mm (visually or by marks on the block).
• 🚗 Increased braking distance or a “soft” brake pedal.
• 🔥 Overheating of brake discs after intense braking (the disc may even “drive”).
• 🛑 Steering wheel beating when braking - often indicates uneven pad wear or disc deformation.

Hidden signs that many people miss:

1. Uneven wear internal and external pads (indicates problems with the caliper or guides).
2. Foreign deposits on the surface of the pad - oil stains or corrosion impair braking properties.

⚠️ Attention: If cracks or chips of friction material are found on the pads, they need to be replaced immediately - even with sufficient thickness. Such defects can lead to the destruction of the pad under load.

Which pads to choose: original vs analogues + compatibility table

Original pads for Nissan Almera G15 (article 40520-4M000 for the front axle) are more expensive than analogues, but guarantee compatibility with the ABS system and an optimal friction coefficient. However, high-quality analogues from trusted brands (for example, ATE, Ferodo, Brembo) can offer comparable performance for less money.

When choosing, pay attention to:

• 🔧 Friction material composition (ceramics, semi-metal, organic) - affects disc wear and noise level.
• 📋 Presence of wear sensor (not all analogues have it, although it is useful for timely diagnosis).
• 🌡️ Temperature range - important for intense driving (for example, Ferodo Premier can withstand up to 600°C).

Brand	Article	Material type	Approximate price (per set)	Features
Nissan (original)	40520-4M000	Semi-metal	3 500–4 200 ₽	Optimum balance of wear and braking performance, but prone to squeaking in cold weather.
ATE	13.0460-7206.2	Ceramics	2 800–3 300 ₽	Less wear on discs, low noise level, but they can get used to the disc (breaking in is required).
Ferodo Premier	FDB1696	Low metal	3 000–3 600 ₽	High coefficient of friction, suitable for aggressive riding.
Brembo	P 24 064	Organic	2 500–3 000 ₽	They are soft, make little noise, but wear out faster.

If you choose analogues, be sure to check the catalog using the vehicle's VIN code - some pads may not fit discs with perforations or ventilated options. Also note completeness: Cheap kits may not have anti-squeak plates or grease for the guides.

Preparing for replacement: tools and safety precautions

To replace the front pads with Almera G15 you will need:

Balloon wrench and jack|14mm and 17mm sockets|7mm hex (for guides)|Caliper lube (e.g. Slipkote 220-R DBC)|Hammer and wooden block (for pressing the piston)|DOT-4 brake fluid (for topping up)|Brake cleaner (Brembo Cleaner or equivalent)|New pads and pressure springs (if required)|Gloves and safety glasses-->

Important: don't use WD-40 for cleaning brake components - it leaves an oil film that impairs the adhesion of the pads to the disc. Also avoid metal brushes to clean the caliper: they scratch the surface, which later leads to corrosion.

Step-by-step preparation:

1. Place the car on flat area and secure the rear wheels with chocks.
2. Loosen the front wheel bolts before lifting on the jack (it’s easier to avoid thread breakage this way).
3. Raise the car with a jack, remove the wheel and lock the caliper wire or strap so that it does not hang on the hose.
4. Open the hood and remove the brake fluid reservoir cap - this will make it easier to recess the piston.

⚠️ Attention: If you have recently driven the vehicle, allow the brake discs to cool for at least 30 minutes. Touching hot discs or calipers can cause serious burns, and sudden cooling (for example, with water) can cause metal deformation.

Step-by-step pad replacement: from caliper removal to break-in

The process of replacing pads Almera G15 takes about 1–1.5 hours for both wheels if you have experience. Follow the instructions strictly in order:

Step 1: Removing the caliper

Using the head on 14 mm unscrew the two bolts securing the caliper to the bracket (lower and upper). If the bolts are stuck, use a penetrating lubricant (such as Liqui Moly LM-40) and let it sit for 10-15 minutes. After removing the caliper, hang it on a wire from the strut spring - do not allow sagging on the hose!

Step 2: Replacing the pads and preparing the caliper

Remove the old pads and inspect them for uneven wear. Clean the seats in the bracket with a wire brush (without fanaticism!) and apply a thin layer high temperature grease onto the contact points of the new pads. Install the pads so that pressure springs (if included) were directed towards the piston.

How to avoid squeaking on new pads?

To prevent the pads from squeaking, apply anti-squeak paste (For example, ATE Plastilube) on the back of the pads (not on the friction layer!). Also check that there are no gaps between the pad and the caliper - they can cause vibration and noise.

Step 3: Recessing the caliper piston

This is the most critical stage. On Almera G15 the piston is recessed rotational movement clockwise (like most Nissans with TEVES). To do this:

1. Insert the hexagon into 7 mm into the groove on the piston.
2. Rotate the piston smoothly while pressing on it (you can use a clamp).
3. If the piston does not move, check brake fluid reservoir cap — it needs to be opened to release the pressure.

⚠️ Critical error: Do not press on the piston without rotating - this will damage the threads and require replacement of the caliper!

Step 4: Assembly and Testing

After installing new pads:

• 🔧 Tighten the caliper bolts to torque 30–35 Nm (do not overtighten!).
• 🔄 Press the brake pedal several times so that the piston takes the working position.
• 🚗 Pump the brakes (if the pedal has become “soft”) and check the fluid level in the reservoir.

Common mistakes and how to avoid them

Even experienced car owners sometimes make mistakes when replacing pads. Here are the most common ones and ways to prevent them:

Error	Consequences	How to avoid
Unlubricated caliper guides	Caliper jamming, uneven pad wear	Use special lubricant (not Litol!). Clean guides before application.
Overtightened caliper bolts	Deformation of the bracket, difficult movement of the pads	Tighten with torque 30–35 Nm torque wrench.
Ignoring the condition of the brake hoses	Pressure hose rupture, brake failure	Check the hoses for cracks and “swelling” when you press the pedal.
Installing pads without anti-squeak plates	Extraneous noise when braking	The plates must come complete with the pads. If you don't have them, buy them separately.

Another common problem is incomplete recessing of the piston. If, after installing new pads, the caliper does not close, it means that the piston has not fully entered the cylinder. In this case:

1. Check if the brake fluid reservoir cap is open.
2. Make sure the pads are installed correctly (sometimes they interfere with the piston stroke).
3. If the piston still does not recess, the caliper may need to be replaced (the cuffs are worn out).

Checking the operation of the brakes after replacement

Before driving on the road, perform the following checks:

1. Visual inspection:
   • Make sure that the pads are evenly adjacent to the disc (the gap should be the same on both sides).
   • Check for brake fluid leaks from the caliper.
2. On-site brake test:
   • Press the brake pedal 5-6 times - it should become harder with each press.
   • When the engine is running, the pedal should “work” without dips.
3. Test ride:
   • Accelerate to 30–40 km/h and brake smoothly. Repeat 3-4 times.
   • Check to see if the car is pulling to the side (this is a sign of uneven braking).

If after replacing the pads there is steering wheel vibration or knock when braking, probably:

• The pads are installed incorrectly (right/left sides are mixed up).
• The brake disc is deformed (check the runout with an indicator).
• The caliper piston is not fully recessed.

⚠️ Attention: If, after replacing the pads, the brake pedal becomes “soft” and does not recover after bleeding, this may indicate brake hose damage or fluid leak. In this case, operating the vehicle is prohibited!

Pad service life: how to extend the resource

Average life of front pads Almera G15 amounts to 30–50 thousand km, but it can be increased by following simple recommendations:

• 🚦 Avoid "aggressive" braking — sharp pressing of the pedal increases wear by 2–3 times.
• 🔄 Clean the caliper and guides periodically from dirt (every 10 thousand km).
• 🌡️ Keep your foot off the brake pedal when driving - this leads to overheating of the pads.
• 🔧 Monitor the condition of the brake discs - Runout or irregularities accelerate pad wear.
• 🛢️ Use quality brake fluid (For example, Castrol DOT 4) and change it every 2 years.

Also note seasonal features:

• In winter, the pads wear out faster due to disc corrosion (salt, moisture).
• In summer, the risk of overheating is higher - avoid prolonged braking on descents (use engine braking).

FAQ: Answers to frequently asked questions

Is it possible to replace the pads on only one wheel?

No! Pads are always changing in pairs on the same axis (i.e. on both front wheels at the same time). Otherwise, the braking force will be distributed unevenly, which will lead to the car pulling to the side when braking and accelerated wear of the discs.

Do I need to bleed the brakes after replacing the pads?

Typically, bleeding is not required unless you have opened the hydraulic system (disconnected the brake hose). However, if the pedal becomes “soft” or returns slowly after being pressed, bleeding is required. Use reverse sequence: right rear → left rear → right front → left front wheel.

Why do new pads squeak?

The squeaking sound of new pads can be caused by:

• Lack of anti-squeak plates or lubricant on the back of the pads.
• Dirt getting between the pad and the disc (needs to be cleaned).
• Low-quality friction material (especially cheap analogues).
• Unused pads (must last 100–200 km).

If the squeaking does not go away after break-in, try applying special paste (For example, ATE Plastilube) on the non-working surfaces of the pads.

What should I do if the ABS light comes on after replacing the pads?

This may indicate:

• Damage to the ABS sensor during operation (check the connector and wiring).
• Dirt gets on the sensor rotor (clean it).
• Malfunction of the sensor itself (diagnosis with a scanner is required).

Reset the error by disconnecting the battery terminal for 10 minutes. If the light comes on again, contact diagnostics.

Is it possible to use pads from Nissan Note or Tiida on Almera G15?

No, despite the similar platform, the pads are from Note (article 40520-4M025) and Tiida (40520-4M010) have different sizes and shapes, and may also not be suitable in terms of the composition of the friction material. Using incompatible pads will result in:

• Uneven disc wear.
• Deterioration of braking properties.
• Damage to the caliper (due to improper seating).