Wheel bearing <em>Nissan Terrano</em>: diagnosis, selection and replacement

The wheel bearing is one of the most loaded components of the chassis Nissan Terrano, on which management safety directly depends. Its wear does not appear immediately, but ignoring the first symptoms can lead to wheel jamming while driving or destruction of the hub. Owners Terrano (especially models R50 And R20) often encounter this problem after 100–150 thousand km, but premature wear is possible even earlier - due to aggressive driving, bad roads or low-quality spare parts.

In this article we will look at how accurately diagnose the problem wheel bearing, which original and analogues suitable for Terrano, and also give step-by-step replacement instructions with nuances for the front and rear axles. We will pay special attention to typical mistakes that are made during repairs and how to avoid them. If you hear a hum when driving or feel vibration on the steering wheel, this information will help save time and money.

Signs of a bad wheel bearing Nissan Terrano

The first symptoms of bearing wear are often confused with wheel imbalance or transmission problems. However, the wheel bearing has characteristic features, which help to accurately identify the problem:

• 🔊 Hum or howl on the wheel side, increasing during acceleration. At an early stage, the noise may only appear at speeds above 60–80 km/h, but as it wears it becomes constant.
• 🌀 Vibration on the steering wheel (for the front bearing) or in the body (for the rear), especially noticeable when cornering.
• 🚗 Wheel play, which is checked by rocking the suspended wheel in a horizontal plane. Even a minimal gap is a reason for diagnosis.
• 🔥 Hub overheating after the trip. If the wheel is hot after stopping (especially compared to others), this may indicate friction from worn bearing parts.

On Nissan Terrano R50 (2014–2020) and R20 (2020–present) the front bearing fails more often than the rear due to greater load when cornering and bumps. Feature of the model: on Terrano with all-wheel drive, wear of the rear bearings is accelerated due to the constant transmission of torque to the rear wheels. If you ignore the hum, the bearing may fail, leading to wheel seizure or CV joint damage.

⚠️ Attention: On Terrano with the system 4WD Lock Rear bearings wear out 20–30% faster. If you often use all-wheel drive, check their condition every 20 thousand km.

For an accurate diagnosis, jack up the car and spin the wheel by hand. Extraneous noise or uneven rotation is a direct sign of a malfunction. Also note uniform tire wear: If one side of the tread wears faster, it may be due to play in the hub.

Which wheel bearings are suitable for Nissan Terrano?

The choice of bearing depends on the year of manufacture, drive type and axle (front/rear). For Terrano R50 (2014–2020) and R20 (2020–present) original articles and their analogues are shown in the table:

Model and axis	Original article	Analogs (brand + article)	Notes
Terrano R50, front	40520-BM00A	NSK VKBA3553 NTN 5S-BM00A SKF VKBA 3553	Suitable for versions with 2WD And 4WD
Terrano R50, rear	40520-BM01A	NSK VKBA3554 Koyo BM01A	Only for 4WD
Terrano R20, front	40520-BM00B	NTN 5S-BM00B FAG 713610670	Changed design from 2020

When choosing an analogue, pay attention to country of origin. Bearings NSK And NTN Japanese or European production last longer than Chinese ones. Also check the package contents: in the original set for Terrano goes often retaining ring and lubricant, which may not be available in cheap analogues.

⚠️ Attention: On Terrano R20 from 2022, bearings with a modified geometry of the inner race will be installed (40520-BM00C). Please check the article by VIN code, as older analogues may not be suitable.

The cost of an original bearing for the front axle is from 4,500 to 6,000 rubles, for the rear axle - from 5,000 to 7,500 rubles. High-quality analogues (NSK, SKF) will cost 3,000–4,500 rubles. It’s not worth saving on this unit: cheap bearings (Febi, Optimal) rarely nurse more than 50 thousand km.

Tools and preparation for replacing a wheel bearing

Replacing the bearing with Nissan Terrano requires special tools. Without a puller and press, the risk of damaging the hub or bearing increases significantly. Here is the complete list of what you need:

• 🔧 Wheel bearing puller (For example, Hazet 4962-1 or similar).
• 🔨 Socket heads at 17, 19, 22 and 30 mm (for the hub nut).
• 🔩 Torque wrench (tightening torque of the hub nut is 200–250 Nm).
• 🛠️ Hammer and copper drift (to carefully remove the old bearing).
• 🧴 Bearing grease (Molykote BR2 Plus or LIQUI MOLY LM 50).

You will also need new retaining ring (article 40528-BM000) and hub nut (40526-BM000), since it is recommended to replace them every time they are dismantled. If you plan to work without a lift, prepare jack with stop And wheel chocks.

Loosen the hub nut (while the car is on the ground)|Remove the wheel and caliper, hang it on a wire|Disconnect the ABS sensor (do not pull the wires!)|Remove the brake disc and hub using a puller-->

Before starting work necessarily:

1. Loosen the hub nut while the car is on the ground (the tightening torque is very high and it is difficult to do this while suspended).
2. Disconnect the negative terminal of the battery to avoid short circuit when working with the ABS sensor.
3. If the bearing is being changed on the rear axle, drain some oil from the gearbox (if necessary).

⚠️ Attention: On Terrano with the system ESP After replacing the bearing, an error may light up C1130 (ABS sensor malfunction). This is due to a violation of the gap between the sensor and the ring. Solution: Check that the sensor is clean and installed correctly.

Step-by-step instructions for replacing the front wheel bearing

Replacement process on the front axle Terrano takes 2–3 hours if you have the tools. Follow the instructions to avoid errors:

1. Removing the hub:
   • Raise the car and remove the wheel.
   • Unscrew the caliper (two 17 mm bolts) and hang it on a wire without disconnecting the brake hose.
   • Remove the brake rotor (WD-40 may be needed if it's stuck).
   • Unscrew the hub nut (30 mm) and remove it from the drive splines.
2. Bearing removal:
   • Using a puller, press the hub out of the steering knuckle.
   • Remove the retaining ring using pliers.
   • Install the puller onto the bearing and press it out evenly. Do not use a hammer!
3. Installing a new bearing:
   • Clean the seat from dirt and old grease.
   • Apply a thin layer of grease to the outer race of the new bearing.
   • Using a mandrel (or an old bearing), press the new bearing in until it stops.
   • Install a new retaining ring.
4. Assembly:
   • Place the hub on the drive splines and tighten the nut to a torque of 200–220 Nm.
   • Install the brake disc, caliper and wheel.
   • After a test drive (5-10 km), check the tightness of the hub nut.

On Terrano R20 with electric steering (EPS) after replacing the bearing it may be necessary reset adaptations via a diagnostic scanner (for example, Launch X431). This is due to changes in wheel rotation angles.

What to do if the bearing does not press out?

If the bearing is stuck and cannot be removed, try the following:

1. Apply penetrating lubricant (WD-40 Specialist) and wait 10–15 minutes.

2. Gently heat the steering knuckle with a heat gun (not higher than 100°C).

3. Use the puller with great force, but without jerking.

4. As a last resort, cut the inner race with a grinder (only if the bearing is no longer on the car!).

Features of replacing the rear wheel bearing

Rear bearing on Nissan Terrano with all-wheel drive (4WD) is more difficult to change due to the need to dismantle the axle shaft. Main differences from the front axle:

• 🔧 It is necessary to drain the oil from the rear gearbox (about 0.5 l). Use a new gasket (38425-BM00A) during reassembly.
• 🛑 Must be disconnected parking brake cable and ABS sensor.
• 🔄 The rear wheel bearing comes complete with ABS sensor ring, so replacing the ring separately is not possible.
• ⚙️ The tightening torque of the hub nut is 180–200 N m (less than at the front).

Work algorithm:

1. Remove the wheel, brake drum and caliper.
2. Unscrew the four bolts securing the hub to the beam (19 mm).
3. Press out the hub together with the bearing using a puller.
4. Replace the bearing (similar to the front axle), but note that the rear bearing often comes complete with the hub (part number 40520-BM01A).
5. When assembling, check the operation ABS - error C1145 (open sensor circuit) often appears due to damaged wiring.

On Terrano R50 with rear drum brake system, bearing replacement may be required parking brake adjustment. To do this:

1. Raise the handbrake lever 3-4 clicks.
2. Loosen the locknut on the cable under the car.
3. Tighten the adjusting nut until there is slight resistance as the wheel rotates.
4. Tighten the locknut and check the lever travel (there should be 5-7 clicks).

Typical replacement mistakes and how to avoid them

Even experienced craftsmen make mistakes that shorten the service life of a new bearing. Here are the most common:

• 🔨 Using a hammer instead of a puller — leads to seat damage and imbalance.
• 🧴 Lack of lubrication on contact surfaces - accelerates corrosion and wear.
• 🔧 Reusing a snap ring or nut - weakens fixation.
• 🌀 Incorrect tightening torque — over-tightening deforms the bearing, under-tightening leads to play.
• 🚗 Ignoring wheel alignment checks after replacement - accelerates tire wear.

On a Terrano with an ESP system, after replacing the bearing, you must reset the steering angle sensor adaptations via the diagnostic scanner. Otherwise, the stabilization system will not work correctly, especially on slippery roads.

⚠️ Attention: If after replacing the bearing there is metallic grinding when braking, most likely you forgot to set protective washer between the hub and the brake disc. This leads to metal-to-metal contact and accelerated wear of the disc.

Another typical problem is oil leak from gearbox after replacing the rear bearing. This occurs due to damage to the gasket or improper tightening of the bolts. Solution: use a new gasket (38425-BM00A) and tighten the bolts crosswise to a torque of 40–50 Nm.

Service life and prevention of wheel bearings

Wheel bearing life Nissan Terrano depends on operating conditions:

• 🚗 City riding (asphalt, moderate loads): 120–150 thousand km.
• 🏔️ Off-road driving (frequent loads on the suspension): 60–80 thousand km.
• ❄️ Operation in winter conditions (salt, temperature changes): 80–100 thousand km.

To extend bearing life:

• 🛑 Avoid sudden starts and braking - this increases the load on the hub.
• 🚿 Wash your wheel arches regularly to salt and dirt did not hit the bearing.
• 🔧 Check wheel play every 20 thousand km (even if there is no noise).
• 🌀 Follow wheel balancing - imbalance accelerates wear.

On Terrano with the system 4WD Auto rear bearings wear out faster due to the constant connection of the rear axle. If you frequently drive off-road, we recommend:

• Install reinforced bearings (SKF Explorer or NTN Premium).
• Check often condition of anthers CV joints - their damage leads to dirt getting into the bearing.

FAQ: Frequently asked questions about wheel bearings Nissan Terrano

Is it possible to drive with a humming bearing?

For a short time (up to 500–1000 km) it is possible, but the risk of wheel jamming increases with each trip. At speeds above 100 km/h, a worn bearing may fail, resulting in loss of control. If the hum is heard constantly, replace the bearing within a week.

How to distinguish a bearing failure from CV joint wear?

CV joint crunches when turning and starting, and the bearing buzzing at speed. Also, with a faulty CV joint, the sound comes from the box area, not the wheel. To accurately determine, lift the car on a jack and turn the wheel by hand - if you hear a grinding noise or feel play, the problem is in the bearing.

Do I need to replace the bearing in pairs (left and right)?

Not necessary if the second bearing is in good condition. However, if the car's mileage is more than 150 thousand km, it is recommended to replace both bearings on the axle - the second one may soon fail. Exception: if the bearing is destroyed due to water or mechanical damage (for example, after an accident), a pair replacement is not required.

Is it possible to lubricate the bearing without removing the hub?

No. Wheel bearing Terrano - closed type, and the lubricant inside it is designed for its entire service life. If the bearing is already noisy, lubricant will not help - it needs to be changed. Attempts to “extend life” by washing or adding lubricant lead to even faster wear.

What lubricant is suitable for wheel bearings?

Use high temperature lubricants based on lithium or molybdenum:

• Molykote BR2 Plus (article 105991) - optimal for Nissan.
• LIQUI MOLY LM 50 — universal for rolling bearings.
• SKF LGHP 2 - used on conveyors Nissan.

Do not use graphite lubricants or Litol-24 - they cannot withstand loads and temperatures.