Regular brake maintenance is a critical aspect of SUV operation. Nissan X-Trail second generation (T31). The rear brake mechanisms in this model have design features that distinguish them from their front counterparts and require special attention during maintenance.
Owners are often faced with the need to replace consumables due to the specific nature of using an SUV in urban environments or during frequent off-road trips. Brake pads are a consumable item that directly affects traffic safety and the effectiveness of emergency braking.
The replacement procedure on the rear axle has its own nuances, especially if your car is equipped with an electronic handbrake (EPB) system. Incorrect actions can lead to failure of an expensive servo drive, so you need to carefully study the algorithm of actions before starting work.
Diagnostics of wear and selection of suitable consumables
Determine the need to replace the rear brake pads based on several characteristic signs that appear while driving. The most obvious signal is the appearance of a specific metallic grinding or squeaking noise when braking, which indicates that the friction layer has worn down to the limit.
In addition to the sound signals, pay attention to the behavior of the brake pedal and the length of the braking distance. If you notice that Nissan X-Trail T31 braking becomes worse, and the pedal sinks deeper than usual, this may indicate wear on the rear elements. Also, visual inspection through the wheel rims often allows you to assess the thickness of the friction lining.
- 🚨 Grinding or squeaking sound when pressing the brake pedal
- 🚨 Increased braking distance and the need to press harder on the pedal
- 🚨 Vibration or beating of the steering wheel during intense deceleration
When choosing new parts, it is important to consider the type of brake system installed on your vehicle. For versions with electronic parking brake (EPB) requires special pads with a thinner piston and a special wear sensor mount. Using standard parts for models with a manual handbrake may make it impossible to install the caliper.
There is a wide range of manufacturers on the market, from original parts Nissan to high-quality analogues. Experts recommend paying attention to brands that specialize in Japanese cars to ensure the compatibility of materials and the geometry of the mechanism.
Preparation of tools and workplace
Before you begin dismantling the wheels and calipers, you must prepare all the necessary tools and equipment. Working with the brake system requires precision and specialized wrenches, as the bolts can be tightened with great force.
You will need a jack and reliable stands (goats) to secure the car, since working under the car on one jack is strictly prohibited. Also, be sure to have a set of sockets, hex sockets, and a torque wrench ready to properly tighten the fasteners.
- 🛠️ Jack and stands for the body (minimum two pieces)
- 🛠️ Set of sockets: 12, 14, 17, 19 mm and 5 and 7 mm hexagons
- 🛠️ Special tool for recessing the caliper piston
- 🛠️ Wheelbrace and WD-40 for processing bolts
Pay special attention to cleaning the work area from dirt and dust. Before starting work, treat the caliper and guide mounting bolts with penetrating lubricant to prevent them from sticking. This will greatly simplify the dismantling process and reduce the risk of thread breakage when trying to unscrew rusted elements.
It is also recommended to prepare a container to collect old brake fluid in case it needs to be replaced or topped up during operation. Cleanliness in the working area is the key to ensuring that dirt does not get inside the brake mechanism, which can damage the cuffs and pistons.
Procedure for replacing pads without an electric drive
If your Nissan X-Trail T31 is not equipped with an electronic handbrake, the replacement process is greatly simplified and resembles the standard procedure for most cars. Start by loosening the wheel bolts, then jack up the car and remove the wheel, allowing easy access to the brake caliper.
Remove the lower caliper guide bolt, which is usually 14mm. The top bolt often remains in place, allowing the caliper to be moved to the side. Be careful not to damage the brake hose, and hang the caliper on a wire or hook to prevent it from hanging on the hose.
Remove the old brake pads and carefully inspect the caliper bracket. Remove rust and dirt from the mounting areas, and apply a special high-temperature grease to the guides and contact surfaces. This will prevent squeaks and ensure free movement of new elements.
Install new pads, having previously lubricated their contact points. Return the caliper to its place by tightening the guide bolts to the recommended torque. It is important not to overtighten the bolts so as not to strip the threads in the aluminum caliper housing, but also not to leave them too loose.
- 🔧 Loosen the wheel bolts before lifting the car
- 🔧 Unscrew the lower caliper guide bolt (14 mm)
- 🔧 Move the caliper and replace the pads in the bracket
- 🔧 Treat the guides with high-temperature grease
After installing the new parts, press the brake pedal all the way down several times. This action is necessary to ensure that the caliper pistons take the correct position relative to the new pads. Without this procedure, the pedal may feel soft and ineffective on your first ride.
Operation with electric handbrake (EPB)
On many versions Nissan X-Trail T31 installed electronic parking brake, which requires a special approach when replacing pads. In this case, the caliper piston is not simply pressed in, but retracted by an electric motor, and manual pressing of the piston is impossible without special actions.
If you try to press the piston mechanically without turning off the motor, you are likely to break the plastic gear inside the mechanism or damage the electric motor. Repairing such a unit will cost a significant amount, so a strict algorithm of actions should be followed.
⚠️ Warning: Never attempt to press in a power caliper piston by hand without using a diagnostic scanner or a special procedure for entering service mode!
There are two main ways to return the piston to its original position: using diagnostic equipment or performing a special sequence of actions on the brake pedal and handbrake. The second method is not suitable for all modifications, so it is better to use a scanner.
When working with diagnostic equipment, you must connect the scanner to the OBD-II connector, enter the brake system menu and select the “Brake pad reset” or “Piston retraction” function. After this, the motor will automatically retract the piston, and you can safely replace the elements.
Instructions for returning the piston in service mode
For models with an electronic brake, there is a method for entering the service mode without using a scanner. This procedure allows you to turn off the electric motors and move the pistons to a position convenient for replacing the pads. The process requires precise adherence to the sequence of pressing buttons and pedals.
First turn on the ignition without starting the engine. Press and hold the brake pedal, then apply and release the handbrake (EPB button) a specified number of times. The exact number of clicks may vary depending on the year of manufacture and firmware of the car.
- 📋 Turn the ignition to ON (engine not running)
- 📋 Press and hold the brake pedal
- 📋 Turn on and off the handbrake button 3 times at intervals
- 📋 Wait for the sound signal and release the brake pedal
After successfully entering the service mode, the motors should turn off and the pistons can be carefully pressed in using a special tool. Be extremely careful not to damage the rod boot or distort the piston when pressed.
After replacing the pads and assembling the caliper, you must exit the service mode. This usually happens automatically when you turn on the ignition and release the car's handbrake, but it is better to check the status through the on-board computer menu or a diagnostic scanner.
Compatibility table and recommended articles
To select the correct spare parts, you need to know the exact VIN code of your car, since the dimensions and design of the calipers may vary depending on the configuration. Below is a table with approximate article numbers of original parts and high-quality analogues.
| Part type | Original article | Analogue (Brand) | Note |
|---|---|---|---|
| Rear pads (EPB) | D5520-ED00A | TRW GDB1453 | With wear indicator |
| Rear pads (mechanical) | D5520-ED00B | Nisshinbo RF8050 | Without electric motor |
| Caliper guides | 41120-ED000 | Febi Bilstein | Lubrication kit |
| Brake fluid | KL66-00-000 | DOT 4 (Bosch, Motul) | For topping up |
When choosing analogues, give preference to proven brands that specialize in brake systems. Cheap Chinese kits may have an unstable friction composition, which will lead to rapid wear of the brake discs or lack of braking efficiency.
Please note that some manufacturers offer kits that already contain the necessary lubricant and fasteners. This simplifies the installation process and ensures that all necessary consumables are compatible with your specific caliper type.
⚠️ Attention: When purchasing analogues, always check the catalog numbers and check for the presence of a wear sensor, if it is provided for by the design of your car!
After installing new pads, you need to check the operation of the system. Start the engine and check that the handbrake indicator on the instrument panel goes out after turning off. Perform test braking at low speed to ensure that there are no unusual sounds and that the mechanism is operating efficiently.
Nuances of engraftment and final running-in
New brake pads require a certain healing period to ensure that the friction material adheres tightly to the surface of the brake disc. During this period, it is not recommended to perform sharp and emergency braking, as this can lead to overheating and deformation of the discs.
For the first 200-300 kilometers, you should avoid an aggressive driving style and long descents from the mountains, where constant braking is required. This will allow the surface of the pads and discs to form a uniform layer of carbon deposits, providing maximum grip.
If you feel vibration or hear a squeaking sound after replacement, this could be a sign of improper installation or contamination. In this case, it is recommended to re-check the tightness of the guides and the condition of the lubrication. Brake system does not tolerate negligence, so any deviations from the norm require immediate elimination.
Regularly checking the thickness of the friction layer and the condition of the discs will help avoid costly repairs in the future. Do not forget that timely replacement of consumables is the key to your safety and the safety of your passengers.
Frequently asked questions and answers (FAQ)
Is it possible to replace the rear pads without a scanner on a Nissan X-Trail T31 with EPB?
Yes, this is possible if you perform a special procedure for entering service mode through the combination of the brake pedal and handbrake button. However, this method does not work on all firmware versions, and using a scanner is considered a more reliable method.
How long does it take to replace rear pads?
For an experienced technician, replacement takes from 40 to 60 minutes per axle. For a beginner, taking into account preparing the instrument and studying the instructions, the time can increase to 1.5–2 hours.
Do I need to change brake discs and pads?
It depends on the condition of the disks. If they have deep grooves, wear of more than 1.5 mm, or runout, the discs must be replaced or sharpened. In normal condition, it is enough to replace only the pads.
How often do you need to change the rear brake pads on the X-Trail T31?
The average service life is from 40 to 60 thousand kilometers, but this greatly depends on driving style and operating conditions. In city traffic with frequent traffic jams, wear may occur faster.
- Scan (OBD)
- Manual mode (buttons)
- Service service
- I don't know how to do it