The braking system is a critical component of any vehicle, and Nissan Almera Classic is no exception. The rear brakes on this model often operate in handbrake mode, which imposes certain maintenance requirements. Ignoring pad wear can lead to caliper seizure or brake rotor damage, which will result in expensive repairs.
Many owners are afraid to handle the rear axle themselves, believing that the mechanism there is more complicated due to the parking brake. In fact, if you understand how the caliper piston works and have the right tools on hand, the procedure won't take much time. We'll walk you through every step, from preparation to final inspection, so you can get the job done safely.
Signs of wear and diagnostics of the brake system
You can determine when it’s time to change parts using several characteristic signs. First of all, pay attention to a squeaking or metallic clanging sound when braking - this is a signal that the friction layer is completely depleted and the metal base is rubbing against the disc.
It is also worth regularly carrying out a visual inspection through the spokes of the wheel rim. If the thickness of the friction lining is less than 2-3 mm, operating the vehicle becomes dangerous. On Nissan Almera Classic Uneven wear is common, so both sides need to be checked.
- 🔊 The appearance of a metallic squeak or squeak when you press the brake pedal
- 📉 Increased braking distance and feeling of a “cotton” pedal
- 🔥 Twitching of the steering wheel or body during heavy braking
Don't wait until the pads wear down to metal. This will lead to deep wear on the brake disc, which will have to be replaced along with the linings. Regular diagnostics are the key to your safety on the road.
⚠️ Attention: If you hear a grinding noise even when you release the pedal, stop using the vehicle immediately. Metal on metal can destroy a disc within a couple of kilometers of driving.
Selecting the necessary spare parts and tools
Before starting work, it is necessary to purchase high-quality components. For Nissan Almera Classic Both original spare parts and proven analogues are suitable. It is important not to skimp on friction material, as cheap pads can overheat and reduce braking efficiency.
The list of required tools includes the standard mechanic kit, but there are specific items for the rear caliper. You will need wrenches 14 and 17, a torque wrench and a special device for pressing the piston.
- 🔧 Set of keys and sockets (especially for 12, 14, 17 mm)
- 🛠️ Caliper piston clamp or vise with wide jaws
- 💨 Can of brake cleaner and copper grease
Don't forget about new caliper guides if they have play. Old rubber seals often become tanned and cease to perform their function. Replacing the repair kit along with the pads will extend the life of the unit by several years.
☑️ List of required tools
Preparing the vehicle and removing the wheel
It is better to carry out work on a level area with a hard surface. If you are in a garage, make sure there is access to the car from all sides. Raise the rear of the car with a jack and be sure to place it on sawhorses or a secure stand. Riding on a jack is strictly prohibited.
Before removing the wheel bolts, loosen the wheel nuts slightly while the vehicle is on the ground. This will prevent the disc from spinning. After lifting, remove the wheel and secure it in the trunk so as not to lose it.
Clean the caliper from dirt and dust before disassembling. Dirt can get inside the mechanism and damage the piston boot. Use a brush and cleaner, but avoid getting any chemicals on the rubber parts.
Place the wheel under the threshold of the car or under the bottom on the opposite side in case the jack comes off. This simple precaution can save lives.
Disassembling the caliper and wearing out the old pads
The main difficulty when replacing pads with Nissan Almera Classic lies in the design of the rear caliper. The piston here is not just pressed in, it must be screwed in using a special thread. If you try to press it in the normal way, you will break the handbrake mechanism.
First, unscrew the lower caliper guide bolt that holds it to the caliper. The top bolt is usually left alone, but it is better to unscrew it for convenience. Carefully move the caliper to the side without damaging the brake hose.
Remove the old pads from the bracket. Pay attention to the presence of metal plates. If they are rusted or deformed, they must be replaced with new ones, as they ensure the correct position of the pads.
- 🔩 Unscrew the lower guide bolt with a 14mm wrench
- 🔨 Carefully remove the caliper by hanging it on a wire
- 🧹 Clean the bracket seats from rust and dirt
Inspect the brake disc. If it has deep grooves or cracks, it will need to be sharpened or replaced. The working surface should be smooth and shiny.
What to do if the piston does not screw in?
If you cannot screw in the piston, it may be soured. Try to gently rotate it left and right until it starts to move along the thread. Do not use excessive force to avoid stripping the threads.
- Every 20,000 km
- Every 40,000 km
- Only when the lamp comes on
- I don't know how often
Installing new pads and assembling the unit
Before installing new pads, be sure to treat the back of the friction lining and metal guides with copper grease. This will prevent jamming and eliminate possible creaking. Apply the lubricant in a thin layer, avoiding contact with the work surface.
Install new metal brackets on the disk if the old ones have become unusable. Then insert the new pads into the bracket. They should fit tightly, but without unnecessary force. Make sure the spring clips are in place.
The most important stage is recessing the piston. Use a special tool or vice to screw the piston into the caliper body. Do this slowly and smoothly, monitoring the level of brake fluid in the reservoir.
Place the caliper back on the bracket and tighten the guide bolts. The tightening torque must meet the specifications so as not to strip the threads or loosen the fastener. Typically this value is about 25-30 Nm.
The piston of the Nissan Almera Classic rear caliper is screwed in clockwise while pressing at the same time, simulating the operation of the handbrake. This is a key feature of the mechanism.
Checking the fluid level and test running
After assembly, be sure to check the brake fluid level in the expansion tank. When the pistons are pressed in, the fluid is forced back into the reservoir and the level may rise above the maximum. If this happens, pump out the excess, otherwise the liquid may boil when heated.
Before starting to drive, press the brake pedal all the way down several times. This is necessary for the pistons to take their working position and the pads to press against the disc. The pedal should become firm and elastic.
Spend the first 100-200 kilometers in a gentle mode. Avoid sudden braking and extreme loads. New pads need to rub in to the disc to ensure maximum braking performance.
| Parameter | Meaning | Note |
|---|---|---|
| Minimum pad thickness | 2 mm | Friction layer thickness |
| Bolt torque | 25-30 Nm | For caliper guides |
| Brake fluid type | DOT-4 | Standard for Nissan |
| Service life | 30-50 thousand km | Depends on driving style |
⚠️ Attention: If the brake pedal remains soft after replacing the pads, air may have entered the system. In this case, bleeding of the brake system will be required.
The nuances of working with the handbrake mechanism
On Nissan Almera Classic The rear brakes are combined with a hand brake mechanism. When replacing pads, it is often forgotten that the handbrake may require adjustment. If after replacement the handbrake rises too high, this means that the pads are not pressed tightly enough.
Adjustment is made through a special hole in the caliper or through a cable mechanism under the bottom of the car. Make sure that after releasing the handbrake, the wheels rotate freely without jamming.
Sometimes it happens that the pads get stuck after installation. This occurs due to improper assembly of the guides or dirt getting into the mechanism. In this case, it is necessary to disassemble the caliper and clean it thoroughly.
- 🔍 Check the free play of the handbrake cable
- 🛑 Make sure the wheels don't get hot after a ride
- 🔧 Adjust the cable tension if necessary
A correctly adjusted handbrake should hold the car on a slope for at least 2-3 clicks. If there are more clicks, adjustment is required. Ignoring this point can lead to overheating of the pads and their rapid wear.
Frequently asked questions about replacing rear pads
Question: Is it possible to press the piston without a special tool?
Answer: No, for the rear calipers of Nissan Almera Classic it is necessary to screw in the piston. A regular tool won't do.
Question: Do I need to change the brake disc along with the pads?
Answer: No, if the disc thickness is within normal limits and there are no deep grooves. The disc can be sharpened.
Question: How often should brake fluid be changed?
Answer: It is recommended to change the fluid every 2 years or 40,000 km.
Replacing rear brake pads with Nissan Almera Classic - this is a completely feasible task for any car enthusiast who is ready to pay attention to detail. The main thing is to follow the sequence of actions and not neglect safety measures. Regular brake system maintenance will ensure your safety and the longevity of your vehicle.
⚠️ Attention: Never use old caliper guides if they have visible signs of corrosion or damage to the boots. This can lead to uneven wear on the pads and jamming of the mechanism.
Remember that saving on brakes means saving on your life. Use high-quality spare parts and do not delay replacing worn out elements. Road safety depends on you.