Nissan Almera G15 is a popular sedan that is valued for its reliability and unpretentiousness. But even such machines have consumables that require regular monitoring. One of the key security elements is brake discs. Their condition directly affects braking efficiency, which means your safety and the safety of your passengers.

In this article we will look at what drives are installed on Almera G15 from the factory, how to determine their wear, which analogues can be chosen for replacement and how to extend their service life. You will also find step-by-step replacement instructions and answers to frequently asked questions from owners.

Original brake discs for Nissan Almera G15: part numbers and specifications

From factory to Nissan Almera G15 (2012–2019) brake discs from the manufacturer are installed Nissan or Akebono (supplier for many Japanese brands). Front and rear discs have different sizes and part numbers:

  • πŸ”§ Front discs: original article - 40520-BM400 (diameter 258 mm, thickness 22 mm, minimum permissible thickness 20 mm).
  • πŸ”§ Rear discs (on version with ABS): article number - 40520-4M000 (diameter 232 mm, thickness 9 mm, minimum thickness 7 mm).
  • πŸ”§ Rear drums (on basic configurations): article number - 40500-4M000.

Original discs are made from high carbon cast iron, which provides good heat transfer and wear resistance. However, their price often forces owners to look for alternatives. Average cost of original front discs - from 8,000 to 12,000 rubles per couple, the rear ones will cost 6,000–9,000 rubles.

⚠️ Attention: On Almera G15 with motor 1.6 (HR16DE) discs of larger diameter are installed than on the version with 1.5 (K9K). Check the items before purchasing!
Parameter Front discs Rear discs
Diameter 258 mm 232 mm
Thickness (new) 22 mm 9 mm
Minimum thickness 20 mm 7 mm
Mounting type 5 holes, PCD 100 5 holes, PCD 100

Signs of worn brake discs: when is it time to change them?

Brake discs on Almera G15 They do not have strict replacement regulations - it all depends on the driving style and operating conditions. However, there are clear signs that it’s time to check or change them:

  • 🚨 Vibration on the steering wheel when braking - signal disc deformation (often due to overheating).
  • πŸ”Š Creaking or grinding - may indicate critical wear or sand getting between the pad and the disc.
  • πŸ“ Thickness reduction below acceptable (20 mm front, 7 mm rear).
  • πŸ”₯ blue tint on the surface of the disc - a consequence of overheating (often among aggressive drivers).
  • πŸš— Increased braking distance β€” the discs have lost efficiency due to wear or corrosion.

You can check the thickness of the discs caliper or visually - on the inside there is usually a recess (shoulder) that appears when worn. If it exceeds 1–1.5 mm, the disk needs to be replaced.

πŸ“Š How often do you check the brake discs on your car?
  • Every maintenance (every 15,000 km)
  • Once a year
  • Only when problems arise
  • Never checked

Another diagnostic method is disk runout check. To do this:

  1. Raise the car on a jack and remove the wheel.
  2. Turn the disc by hand - if you feel unevenness or steps, the disk is deformed.
  3. Use a dial indicator to accurately check runout (tolerance is no more than 0.05 mm).
⚠️ Attention: If there are deep furrows (more 0.5 mm), it cannot be sharpened - only replaced! Grooving is allowed only if there is uniform wear without cracks.

Which brake discs to choose for Almera G15: original vs analogues

The market offers dozens of options for brake discs for Almera G15 - from budget to premium. Main selection criteria:

  • πŸ”Ή Material: cast iron (standard), ceramics (expensive, but durable), composite alloys (lighter, but less wear-resistant).
  • πŸ”Ή Surface type: perforated (better cooling, but wear out faster), ventilated (the best option for the city), smooth (cheaper, but dissipate heat worse).
  • πŸ”Ή Brand: original (Nissan/Akebono), premium (Brembo, TRW, ATE), middle segment (Ferodo, Bosch, Textar), budget (LPR, Fenox, Pilenga).

Let's compare popular analogues of the original disks:

Brand Article (front) Price per pair (β‚½) Features
Brembo 09.9662.11 11 000–14 000 High wear resistance, perforated, suitable for aggressive riding
TRW DF4536 9 500–12 000 OE quality, ventilated, low noise
Bosch 0 986 479 720 8 000–10 000 Good price/quality ratio, anti-corrosion coating
Ferodo DDF1305 7 000–9 000 Soft composition, less wear on pads
LPR 05.258.1022 4 500–6 000 Budget option, suitable for a quiet ride

For Almera G15 the optimal choice would be ventilated discs from TRW or Bosch β€” they provide better cooling and long service life. If your budget is limited, you might consider Ferodo or Textar, but their resource is 20–30% less than the original.

πŸ’‘

When purchasing discs, always check availability certificate of conformity and compare the article numbers with the manufacturer's catalogs. Counterfeits are often thinner and quickly deform.

Step-by-step instructions for replacing brake discs on Almera G15

Replacing brake discs with Nissan Almera G15 does not require special equipment, but will require care. It is better to do the work on lift or inspection holeusing a jack and stops.

Wheel Wrench|Jack and Stops|Sockets for 14, 17 and 19|Ratchet Wrench|Hammer and Wood Spacer|New Brake Rotors and Pads|Brake Fluid (DOT-4)|Copper Guide Lube|Brake Cleaner (Spray)-->

Procedure:

  1. Preparation:
    • Stop the engine, engage first gear (or P on automatic transmission) and place chocks under the rear wheels.
    • Loosen the wheel bolts, then jack up the car and remove the wheel.
  2. Removing the caliper:
    • Unscrew the two caliper mounting bolts (head on 14).
    • Hang the caliper on a wire or rope, without disconnecting the brake hose!
    • Remove the brake pads.
  3. Removing the old disk:
    • Unscrew the two screws securing the disc to the hub (head on 17).
    • If the disc gets stuck, gently tap it with a hammer through a wooden spacer.
  4. Installing a new drive:
    • Clean the hub from rust and dirt, apply a thin layer copper grease to the adjacent surface.
    • Install the new disk and secure it with screws (tightening torque - 80–100 Nm).
  5. Assembly:
    • Install new pads and lubricate the caliper guides.
    • Secure the caliper and check the piston stroke (it should move freely).
    • Install the wheel and lower the car.
  6. Bleeding the brakes:
    • After replacing, press the brake pedal several times to ensure the pads are in place.
    • Check the brake fluid level in the reservoir and add if necessary.
What to do if the caliper cannot be removed?

If the caliper is soured and cannot be removed, do not use excessive force - you risk damaging the brake hose. Try:

1. Spray the guides with WD-40 and wait 10–15 minutes.

2. Gently tap the caliper with a hammer through the soft spacer.

3. Use a puller or lever (for example, a pry bar) against the caliper body, not against the hose.

If all else fails, contact service so as not to strip the thread.

⚠️ Attention: After replacing the disks, the first 200–300 km Avoid sudden braking - the pads need to get used to it! Also check that there are no brake fluid leaks after assembly.

How to extend the service life of brake discs on Almera G15

Average life of brake discs Almera G15 β€” 80,000–120,000 km, but with aggressive driving or poor maintenance it can be reduced to 50,000 km. To make your discs last longer:

  • πŸš— Avoid hard braking - Brake smoothly, slowing down in advance.
  • πŸ”§ Check your pads regularly β€” worn pads accelerate the destruction of discs.
  • πŸ’§ Wash your wheels in winter β€” salt and reagents cause corrosion.
  • πŸ”₯ Don't keep your foot on the brake in traffic jams - this leads to overheating.
  • πŸ› οΈ Lubricate the caliper guides once every 30,000 km - this will prevent jamming.

It is also worth paying attention to brake fluid quality - it needs to be changed every 2 years or 40,000 km. Old fluid boils at a lower temperature, which worsens braking and increases disc wear.

πŸ’‘

The most common reason for premature wear of discs on Almera G15 is wedging caliper. If after a trip one of the wheels is hot, check the guides immediately!

Common mistakes when replacing brake discs

Even experienced car owners sometimes make mistakes that lead to rapid wear of new discs or poor braking. Let's look at the most common ones:

  • ❌ Incorrect tightening torque caliper or hub bolts - leads to disc runout.
  • ❌ Using old pads with new discs - uneven wear and squeaks are guaranteed.
  • ❌ Lack of lubrication on the guides β€” the caliper begins to jam, the discs overheat.
  • ❌ Ignoring bleeding the brakes after replacement, air in the system impairs braking performance.
  • ❌ Installing discs without cleaning the hub - dirt and rust cause beating.

Another mistake - buying discs without checking compatibility. For example, disks from Almera Classic (B10) not suitable for G15 due to different diameters and fastenings. Always check the catalogs for the vehicle's VIN code.

FAQ: Answers to frequently asked questions about Almera G15 brake discs

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

Grooving is possible if:

  • The disk thickness is higher than the minimum permissible (20 mm front, 7 mm rear).
  • There are no deep cracks or chips on the surface.
  • Disc runout does not exceed 0.05 mm.

However, the groove is a temporary solution. After it, the disk becomes thinner and heats up faster. Optimal grinding of discs once, then change.

Which discs are better - perforated or ventilated?

For Almera G15 optimal in urban environments ventilated discs - they last longer and make less noise. Perforated discs dissipate heat better, but:

  • They wear out faster due to holes.
  • Prone to cracks when driven aggressively.
  • Requires more frequent pad replacement.

Perforation is only justified for sport riding or frequent mountain descents.

Do I need to change disks in pairs?

Yes, Discs are always replaced in pairs on the same axis (front or rear). Reasons:

  • Different disc thicknesses lead to uneven braking and pull the car to the side.
  • New and old disks have different heat transfer, which accelerates wear.
  • ABS and ESP are designed for symmetrical brake operation.

An exception is if one disk is mechanically damaged (for example, after an accident), and the second is in perfect condition.

How much does it cost to replace disks in the service?

The cost of work depends on the region and service:

  • Replacing front discs - 1 500–2 500 β‚½ per side.
  • Replacing rear discs - 2 000–3 000 β‚½ on the side (more difficult due to the parking brake).
  • Replacing pads (if required) - 500–1 000 β‚½ for the axle.

In official dealerships prices are 30–50% higher. Replacing it yourself saves money, but requires experience.

Is it possible to drive if the disc is thinner than the minimum?

Categorically it's impossible. If the thickness is below the permissible level:

  • The risk increases sharply disk destruction when braking.
  • Getting worse heat transfer, which leads to boiling of the brake fluid.
  • Braking efficiency decreases, especially at high speeds.

If the disc is worn to 19 mm front or 6.5 mm rear - replace it urgently!