Replacing Rear Brake Pads on Nissan Almera G15: Complete Guide

Regular maintenance of the brake system is not just a regulatory requirement, but a guarantee of your safety and the safety of your passengers. For sedan owners Nissan Almera generation G15, which is often used in taxis and for intensive city trips, the issue of brake wear is especially acute. The rear brakes on this model are often left in the dark until grinding or vibration occurs, but their condition critically affects the braking balance of the entire vehicle.

Many car owners mistakenly believe that the rear pads wear out more slowly than the front ones, and change them every 100 thousand kilometers. In reality, the resource depends on the driving style, the quality of the road surface and, importantly, on the design features Nissan Almera. If you hear extraneous sounds when you press the pedal or notice a decrease in braking efficiency, you can no longer put off a visit to a service station or replace it yourself.

Selection of quality consumables for Almera G15

Before you begin dismantling the wheels, you need to decide what exactly you will put on your car. The auto parts market offers a huge selection: from original parts to budget analogues. For Nissan Almera G15 original pads have an article number starting with D551 and are distinguished by a stable friction mixture composition that does not overheat during prolonged braking.

However, the original is not always the only correct way. Many owners successfully switch to proven brands such as TRW, Remsa or Ceramic. The main thing when choosing is to avoid cheap fakes that may contain asbestos or metals that destroy the brake disc. Pay attention to the production date and the presence of protective lubricants on the back of the pads.

• 🚗 Check that the article number matches the original part in the catalog before purchasing.
• 🛡️ Make sure the friction pad is securely glued and riveted to the metal base.
• 🧪 Avoid kits that do not include grease for the caliper guides.

⚠️ Attention: Never install pads with visible cracks in the friction material or with uneven wear around the edges - this is a sign of defective or improper use.

Sometimes the problem lies not in the pads themselves, but in the quality of the brake disc. If the disc has deep grooves or has runout, the new pads will quickly become unusable. In this case, it is advisable to immediately consider the option of replacing the disks or at least sharpening them, if this is technically possible.

Tools and workplace preparation

For a quality replacement, you will need a standard set of tools, which most car enthusiasts have, but there are also specific points that are specific to Nissan Almera. You will definitely need a jack and reliable stands (“goats”), since working under the machine, relying only on the hydraulics of the jack, is extremely dangerous.

Pay special attention to the wheel nut wrenches (usually a 17 or 19 mm socket) and the caliper socket set. On the rear axle Almera Hexagon or 14/17mm wrench guides are often used, so check their availability in advance. Also don't forget about brake cleaner and graphite lubricant.

Prepare the area under the car: it should be level and firm. If you are working in a garage, make sure there is enough lighting to see the condition of the slides and boots.

• 🔧 Set of socket heads and ratchet driver.
• 🧴 A can of brake cleaner.
• 🔨 Hammer and pry bar for prying off old pads.
• 🧤 Gloves to protect hands from dirt and chemicals.

⚠️ Attention: Before lifting the car, be sure to block the front wheels with stops to prevent the car from accidentally rolling away.

Removing the wheel and dismantling the caliper

The process begins with removing the wheel. Loosen the mounting bolts before you jack up the car so that they do not rotate with the wheel. After lifting and installing on the stands, you can completely unscrew the bolts and remove the disk. Inspect the hub: if there is a lot of rust, clean it with a brush so as not to damage the seat when installing the wheel back.

Now let's move on to the caliper itself. On Nissan Almera G15 rear caliper is secured with two guide bolts. They may be sticky, so take your time. Use a penetrating lubricant (like WD-40) and give it time to work. Using a 14 mm wrench, unscrew the lower guide bolt, holding the upper one with a 17 mm wrench (or hexagon, depending on the configuration).

After unscrewing the bolts, carefully move the caliper up and to the side without damaging the brake hose. If the hose is tight, you can hang the caliper on a wire to the suspension spring so as not to load the rubber pipe. Remove the old pads from the bracket.

Pay attention to the condition of the guide boots. If they are torn, dirt and moisture can get inside, causing the caliper to jam. In this case, replacing the pads should be accompanied by replacing the guide repair kit.

• 🔩 Unscrew the caliper guide bolts using the correct wrench.
• 🧼 Clean the bracket seats from dirt and rust with a cleaner.
• 🔍 Check the condition of the brake hose for cracks and scuffs.

What to do if the guide bolts do not unscrew?

If the bolts are stuck, do not try to remove them with great force so as not to break the threads. Use heat (industrial hair dryer), generous wetting with penetrating liquid, and gentle hammer blows on the bolt head.

Sometimes the caliper bracket gets stuck to the hub. In this case, you can gently tap it through the wooden spacer, but do not hit the aluminum parts of the caliper directly with a hammer, as this may disrupt the geometry and lead to jamming.

Features of working with an electric hand brake

This is the most critical stage, which often causes mistakes for beginners. Rear brakes Nissan Almera G15 are equipped with an electric handbrake mechanism (electric handbrake). If you simply try to push down the caliper piston without special procedure, you will break the electric motor that rotates the clamping mechanism. The repair will cost much more than replacing the pads.

There are two main ways to prepare a caliper for pad replacement. The first is to use a diagnostic scanner (for example, Launch or Autel), which, through a computer, moves the piston to the service position. The second method is mechanical, requiring a special adapter, but Almera You can often do without complex equipment if you know the nuances.

Important: on some Nissan models, the piston has a threaded part that needs to be screwed in, not just pressed in. For this, a special ratchet tool is used, which is inserted into the grooves of the piston. Press and screw in at the same time until the piston goes deep.

⚠️ Attention: If you do not have experience working with an electric handbrake and do not have diagnostic equipment, it is better to contact a professional to avoid expensive servo repairs.

If you have access to the OBDII diagnostic connector, connect the scanner and run the command Service Mode for rear brakes. After this, the piston will automatically move away and you can easily install new pads. If you don't have a scanner, use a power tool to rotate the piston clockwise, constantly pressing it against the body.

After installing new pads, it is necessary to return the piston to its working position. When using a scanner, this happens automatically when the service mode is removed. When replacing mechanically, make sure that the piston is completely retracted into the housing so that the caliper can slide into place without any problems.

Installation of new pads and assembly

When the caliper is ready and the piston is recessed, we begin installing new elements. Before installing new pads, apply a special high-temperature lubricant to the metal pads that contact the caliper bracket. This will prevent squeaks and jamming. It is strictly prohibited to apply lubricant to the friction side!

Insert new pads into the bracket. They should fit snugly but move freely in their guide slots. Check that the spring elements (anti-squeak plates) are in place. If the old plates are deformed, it is better to replace them with new ones, as they play an important role in damping vibrations.

Place the caliper back onto the bracket, aligning the holes with the guides. Screw in the guide bolts. The tightening torque of the bolts must be observed: usually it is about 25-30 Nm, but it is better to check in the technical documentation for your specific modification. Do not overtighten the bolts to avoid stripping the threads in the caliper body.

• 🛢️ Apply lubricant to the back of the pads and guides, but not to the friction.
• 🔩 Tighten the guide bolts to the recommended torque.
• 🔊 Check the free movement of the caliper and the absence of gaps.

Install the wheel and lower the car. Before you start driving, be sure to press the brake pedal all the way down several times so that the pistons are in the correct position and pressed against the pads. Otherwise, when you first brake, the pedal will fall to the floor.

Parameter	Meaning/Recommendation
Brake pad type	Disc, ventilated (rear)
Recommended resource	30,000 – 50,000 km
Friction lining material	Semi-metallic or ceramic
Guide tightening torque	25-30 Nm (depending on the year of manufacture)
Friction layer thickness (new)	12-14 mm

Inspection and testing after replacement

After assembling all components, a thorough check must be carried out. First of all, make sure that the handbrake works correctly. Raise the car on a jack, turn on the handbrake and try to spin the wheel. It should be blocked. If the wheel spins freely, the handbrake mechanism may not have engaged or the piston has not fully extended.

The first kilometers after replacement are carried out in a gentle manner. Avoid hard braking to allow the new pads to “roll” to the disc. If you smell something burning or hear any noise, stop and check the installation. A squeaking noise may indicate that the pads are not lubricated in the right places or are installed crookedly.

Monitor the condition of the brake fluid. When replacing pads, the piston goes deeper and the fluid level in the reservoir may rise slightly, but if you changed the pads a long time ago and they were very worn, the level may have dropped. Check the level before driving.

• ✅ Test the operation of the handbrake on site.
• 🚦 Perform several smooth brakes at low speed.
• 👀 Inspect the calipers for brake fluid leaks.

Why might the brake squeak after replacement?

Creaking often occurs due to a lack of lubrication at the contact points between the pad and the bracket, poor-quality pads, or the presence of vibration that is not damped by anti-creaking plates.

If all checks are completed successfully, the work can be considered completed. Regularly monitoring the thickness of the friction layer will allow you to change your pads on time and avoid unpleasant situations on the road. Remember that road safety starts with good brakes.

FAQ: Frequently asked questions

Is it possible to replace just one rear pad?

No, never change pads one at a time. The braking system must operate symmetrically. Change the set on one axle at once, otherwise a skew of braking forces will occur, which will lead to the car pulling to the side when braking.

How long does it take to replace rear pads on a Nissan Almera G15?

For an experienced technician, the procedure takes about 40-60 minutes on both wheels. A beginner may need 1.5-2 hours, especially if difficulties arise with the electric handbrake or stuck bolts.

Do I need to change brake discs and pads?

No, it is not necessary to change the discs every time you replace the pads. But if the discs have deep grooves, the runout or thickness has reached the minimum allowable (indicated on the disc itself), they must be replaced or sharpened.

What should I do if the brake pedal is soft after replacement?

Most likely there is air left in the system. The brake system needs to be bled. Also check that you have inserted the caliper piston correctly and that you have not mixed up the pad installation locations.

Can I use regular guide lubricant?

Absolutely not. Conventional lubricants (lithol, grease) are destroyed at high braking temperatures. Use only special high-temperature brake lubricant (synthetic or molybdenum dioxide-based).