Rear wheel bearing <em>Nissan Almera G15</em>: signs of malfunction, replacement and selection of spare parts

Nissan Almera G15 is a popular sedan that is valued for its reliability and unpretentiousness. However, even this model has weaknesses, one of which is rear wheel bearing. Its wear can lead to serious problems with the chassis, noise in the cabin, and even wheel jams. In this article, we will look at how to recognize a fault in time, which bearings are suitable for replacement, and how to perform the work yourself or with minimal service costs.

Feature Almera G15 (2012–2019) is that the rear wheel bearings are here non-separable — they come assembled with the hub. This makes replacement easier, but increases the cost of repairs. If you hear a hum or grinding noise from the rear wheel, do not delay diagnosis: ignoring the problem can lead to destruction of the hub and damage to the brake disc.

Signs of a bad rear wheel bearing

The first symptoms of bearing wear are often confused with tire noise or transmission problems. However, there are key signs that directly indicate a problem:

• 🔊 Hum or howl from the rear wheel, increasing during acceleration. The sound may disappear when turning (due to load redistribution).
• 🚗 Vibration on the steering wheel or body when driving at speeds over 60 km/h. Most often felt through the floor or seat.
• 🔧 Wheel play when checking on a lift. If you grab the wheel from above and below and shake it, a noticeable gap indicates critical wear.
• 🔥 Hub overheating. After the ride, touch the rear wheel (carefully!): if the hub is hotter than the other side, the bearing needs to be replaced.

On Nissan Almera G15 rear bearings fail less often than front bearings, but their service life depends on operating conditions. For example, frequent driving on bad roads or an aggressive driving style will shorten the service life by up to 80–100 thousand km. At the same time, with careful operation, they can last 150 thousand km.

⚠️ Attention: If while driving there is metallic grinding or the wheel starts to jam, stop immediately! These are the signs complete destruction of the bearing, which can lead to wheel jamming while driving.

Which bearings are suitable for Nissan Almera G15

On Almera G15 (body N17) rear wheel bearings are installed as an assembly with the hub. Original spare parts are produced by the company NTN or Koyo under the brand Nissan. However, there are worthy analogues on the market from trusted manufacturers.

Type	Article	Manufacturer	Approximate price, ₽	Notes
Original	40520-BM40A	Nissan (NTN/Koyo)	5 500–7 000	Best quality, 12 months warranty
Analogue	VKBA 3563	SKF	4 200–5 000	High resource, often installed in services
Analogue	512 170	FAG	4 500–5 500	Good price/quality ratio
Budget	J320501	SNL	2 800–3 500	Suitable for temporary replacement

When choosing, pay attention to quality of seals — cheap bearings often leak, which leads to dirt getting in and rapid wear. Also check the contents: the box should contain hub, bearing, snap ring and nut (sometimes sold separately).

Diagnostics: how to confirm a malfunction

Before replacing the bearing, make sure that this is the problem. Here is a step-by-step verification algorithm:

1. Listen to the noise as you go. Accelerate to 60–80 km/h and listen: the noise from the bearing will be monotonous and intensify with increasing speed. If the sound disappears when turning left, the problem is in the right bearing, and vice versa.
2. Check the play. Jack up the car, grab the wheel at the 3 and 9 o'clock positions and rock it. Play of more than 1–2 mm is a sign of wear.
3. Inspect the hub. Remove the wheel and brake disc. The hub should not show signs of overheating (blue discoloration), cracks or wear.
4. Spin the wheel. It should rotate smoothly, without jamming. If you hear a crunching or grinding noise, the bearing is destroyed.

If you are unsure of the diagnosis, contact the service for computer diagnostics. Some service stations use vibration analyzers, which accurately determine the source of noise.

⚠️ Attention: Don't confuse bearing noise with rear axle gearbox noise (on all-wheel drive Almera G15). The gearbox makes sound at all speeds, including coasting, and the bearing only makes noise under load.

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

Replacing the bearing with Nissan Almera G15 requires skill and tools, but can be done in a garage environment. You will need:

• 🔧 Jack and stops (or lift).
• 🔨 A set of sockets and keys (required) 30 mm for the hub nut).
• 🛠 Wheel bearing puller (or press).
• 🔥 Gas burner or construction hair dryer (for heating the hub).
• 🧰 Torque wrench (for tightening the nut with a torque 180–200 Nm).

If you don't have a puller, you can get by with a hammer and a mandrel, but this is risky - you can damage the new hub.

Step by step process:

1. Remove the wheel and brake disc. Unscrew the caliper guides and hang it on a wire so as not to damage the hose.
2. Disconnect the ABS sensor. The connector is usually located on the shock absorber strut. Be careful - the wires are fragile!
3. Unscrew the hub nut. It is tightened with a large torque, so use a lever. If the nut does not budge, process it WD-40 and wait 10–15 minutes.
4. Remove the hub. If it gets stuck, heat it with a torch (do not point the flame at the bearing!). Then knock the hub with a hammer through a wooden spacer.
5. Install a new bearing. Press it onto the axle using the old hub as a mandrel. Tighten the nut with a torque wrench.
6. Reassemble everything in reverse order. Don't forget to bleed the brakes if you removed the caliper.

After replacement, be sure to check wheel alignment - even if you did not touch the suspension arms, removing the hub can affect the wheel alignment angles.

What to do if the bearing is stuck on the track?

If the bearing jams while driving, do not try to drive further! Call a tow truck. Driving with a damaged bearing leads to overheating of the hub, deformation of the brake disc and even fire. As a last resort, you can drive slowly (no faster than 20 km/h) to the side of the road, avoiding braking.

Cost of service replacement vs self-repair

Rear wheel bearing replacement cost Nissan Almera G15 depends on the region and service station level. On average, expenses add up like this:

Service/Part	Cost, ₽	Notes
Original bearing	5 500–7 000	Includes hub and retaining ring
Analogue (SKF/FAG)	4 000–5 500	Quality comparable to the original
Work in the service	2 500–4 000	Depends on the complexity (heating, puller, etc.)
Removing/installing a brake disc	500–1 000	Often included in replacement cost

Replacing it yourself will cost less, but will require time and tools. If you do not have experience, it is better to trust the professionals - errors when pressing the bearing can lead to its rapid failure.

Common replacement mistakes and how to avoid them

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

• 🔧 Incorrect tightening of the hub nut. If you overtighten, the bearing will overheat; if you don't tighten it enough, there will be a backlash. Use a torque wrench!
• 🔥 Overheating when shooting. Strong heat from the torch can damage the rubber seals of the new bearing. Only heat the hub, not the axle.
• 🚫 Ignoring ABS sensor. If you forget to connect the connector or damage the wiring, an error will appear on the device C1130 (sensor malfunction).
• 🛑 Saving on lubrication. When installing, apply a thin layer Litol-24 onto the bearing seat - this will protect against corrosion and facilitate future replacement.

Another typical problem is dirt ingress into a new bearing. Before installation, thoroughly clean the trunnion of rust and old grease. If the bearing does not come with a protective cover, apply a layer of grease to it (for example, Molykote).

Prevention: how to extend the life of bearings

The service life of the rear wheel bearings is Nissan Almera G15 can be increased if you follow simple rules:

• 🚿 Wash your wheel arches in winter. Salt and reagents corrode bearing seals. After driving on snowy roads, rinse the arches with water.
• 🛣 Avoid sharp impacts. When driving through speed bumps or potholes, slow down. Strong impacts deform the bearing race.
• 🔧 Check the play every 20 thousand km. This will take 5 minutes, but will help identify wear at an early stage.
• 🔄 Change brake pads promptly. Worn pads increase the load on the hub, accelerating bearing wear.

If you frequently drive off-road or transport heavy loads, reduce the inspection interval to 15 thousand km. Also pay attention to oil leaks from the gearbox (on all-wheel drive versions) - oil getting on the bearing quickly damages it.

FAQ: Frequently asked questions about rear wheel bearings Nissan Almera G15

Is it possible to drive with a humming bearing?

Short-term - yes, but no more than 1-2 weeks. Driving for a long time with a worn bearing leads to:

• Increased vibration and discomfort when moving.
• Overheating of the hub and deformation of the brake disc.
• Wheel jamming at high speed (extremely dangerous!).

If the noise appears suddenly, reduce your speed to 60–70 km/h and contact service as soon as possible.

Which bearing is better - original or analogue?

Original bearings (40520-BM40A) last longer, but also cost more. Analogues (SKF, FAG) are practically not inferior in quality if you buy them from official dealers. Budget brands (SNL, Febi) are suitable for temporary replacement, but their service life is 20–30% less.

Recommendation: if you plan to drive the car for more than 3 years, take the original or SKF.

Do I need to replace the bearing in pairs?

No, this is not necessary. Rear bearings on Almera G15 wear out independently of each other. Changing both makes sense only if:

• The second bearing also has play or noise.
• The car's mileage exceeds 150 thousand km (prevention).
• You are changing a bearing after an accident where there was a load on both sides.

Can the bearing be repaired instead of replaced?

No. Bearings on Almera G15 non-separable and come complete with the hub. Any attempts to “sort out” them (for example, replace balls) will lead to rapid destruction. The only option is to replace the assembly.

How to check a bearing without a lift?

You can use the “swing method”:

1. Place the car on a level surface and secure the front wheels.
2. Jack up the rear wheel and rock it in a vertical plane (from top to bottom).
3. Rotate the wheel by hand - if you hear a crunching sound or it rotates jerkily, the bearing is faulty.

Also note uneven tire wear - it may indicate problems with the bearing or wheel alignment.