Outer CV joint <em>Nissan Sunny FB15</em>: how to choose, replace and avoid mistakes

Nissan Sunny FB15 is a popular sedan that is valued for its reliability and unpretentiousness. However, even such machines have weak points, and one of them is outer CV joint (constant velocity joint). This unit experiences enormous loads, especially during aggressive driving or bad roads. If you hear a characteristic crunch when turning or feel vibration on the steering wheel, most likely this is the problem.

In this article we will look at everything you need to know about the outer CV joint for Sunny FB15: how to diagnose it, which original parts and analogues are suitable, how to replace it yourself (with step-by-step instructions and nuances), and also how to extend the life of the unit. We will pay special attention to typical replacement errors that lead to rapid failure of the new CV joint.

Signs of a malfunctioning outer CV joint on Nissan Sunny FB15

The outer CV joint fails gradually, and the first symptoms are often ignored, attributed to “minor problems.” However, delay is fraught - a damaged joint can block the wheel or damage the drive. Here are the key signs to look out for:

• 🔊 Crunch when turning - the most obvious symptom. The sound intensifies when the steering wheel is turned sharply (especially to the left, since the load on the right CV joint is higher). At an early stage, the crunch is heard only with the wheels turned out, at a later stage - even at a small angle.
• 🌀 Vibration on the steering wheel or body when accelerating or driving at a speed of 60–90 km/h. It is often confused with wheel imbalance, but vibration from the CV joint only appears under load (when you press the gas).
• 🛑 Jerks when starting off or "twitching" of the car at low speeds. This indicates play in the hinge or damage to the separator.
• 💧 Grease leaks on the boot. If the boot is torn and the lubricant has leaked, the CV joint will quickly wear out. You can check by looking behind the wheel or lifting the car on a lift.

Important: the crunching noise may disappear when driving in a straight line, but this does not mean that the problem has gone away. On the contrary, it is a sign of critical wear and tear. If you ignore the symptoms, the CV joint may fall apart while driving, leading to loss of control.

⚠️ Attention! On Sunny FB15 with an automatic transmission, a faulty CV joint can simulate problems with the gearbox (shocks when shifting). Before diagnosing the transmission, check the drive!

Original articles and analogues: what to choose for replacement

For Nissan Sunny FB15 (2010–2017) outer CV joints are supplied either separately or assembled with the drive. Original parts are produced by the company NTN or GKN (depending on the batch). Below are the current articles:

Part type	Article	Manufacturer	Note
Outer CV joint (right)	39300-4M000	NTN	Original, complete with boot
Outer CV joint (left)	39300-4M001	NTN	Original, mirrored right side
Drive assembly (right)	39310-4M000	GKN	Includes CV joint, boot and axle shaft
CV boot	39325-4M000	Nissan	Suitable for both sides

The price of the original CV joint is from 8,000 to 12,000 rubles (for 2026). If your budget is limited, you can consider high-quality analogues:

• 🔧 GKN (Loebro) - articles DS1067 (right) and DS1068 (left). The quality is not inferior to the original, the price is 20–30% lower.
• 🔧 SKF — VKJA 7603. A good option for a quiet ride, but the resource is 15–20% less than the original.
• 🔧 Febi — 22600. Budget analogue, suitable for temporary replacement.
• 🚫 Not recommended: ASVA, Trialli — you often come across fakes with low resources.

Critical nuance: on the Sunny FB15, the right and left CV joints are not interchangeable! They have different spline lengths and rotation angles. Installing a “mirror” CV joint will lead to vibration and rapid wear.

Step-by-step instructions for replacing the outer CV joint

Replacing the CV joint with Sunny FB15 does not require specialized tools, but will require accuracy. Work is performed on a lift or inspection pit. If you have little experience, it is better to invite an assistant, especially to remove the drive.

Required tool:

• 🔧 Set of sockets and keys (10–19 mm).
• 🔧 CV joint puller (or pry bar + hammer).
• 🔧 Torque wrench (for tightening the hub nut).
• 🔧 Pliers for retaining rings.
• 🔧 Grease for CV joint (Molykote BR2 Plus or analogues).

Work order:

1. Remove the wheel and unscrew the hub nut (tightening torque - 250–280 Nm). Use a torque wrench!

2. Disconnect the steering knuckle and ball joint from the steering knuckle (key 14 and 17).

3. Press the CV joint out of the hub. To do this, pull the steering knuckle towards you or use a puller.

4. Remove the retaining ring from the drive shaft (pliers).

5. Knock the old CV joint off the shaft with a hammer through a wooden spacer or use a puller. Do not hit the shaft directly!

6. Install the new CV joint, first applying lubricant to the splines and the inside of the boot.

7. Secure the boot with clamps (use original or ABRO).

8. Reassemble everything in reverse order. After installation, check for any play in the CV joint.

Check the integrity of the new boot|Apply lubricant to the shaft splines|Install the retaining ring|Tighten the hub nut with a torque wrench|Check for any play-->

⚠️ Attention! On Sunny FB15 With an automatic transmission, when removing the drive, transmission oil may leak out of the box. Place a container or plug the hole with a clean rag.

If the CV joint is changed together with the drive, the process is simplified - just remove the inner CV joint from the box (you will need a screwdriver to pry up the retaining ring). However, in this case you will have to adjust the wheel alignment.

Typical replacement mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes that reduce the life of the new CV joint. Here are the most common:

• 🔨 Retightening the hub nut. Tightening torque - 250–280 Nm. Exceeding this leads to bearing deformation and vibration.
• 🔨 Using non-original clamps. Cheap clamps do not provide a tight seal, the boot breaks, and the lubricant is washed out.
• 🔨 Lack of lubrication on splines. Without lubrication, the drive shaft quickly corrodes, and the CV joint begins to “creak” when turning.
• 🔨 Installing a CV joint without a snap ring. The drive can come off the shaft while moving!
• 🔨 Ignoring play in the wheel bearing. If the bearing is worn, the new CV joint will work under increased load.

Another common problem is dirt getting inside the CV joint when replacing. Work in a clean area and wipe the drive shaft with a lint-free cloth before installation. If dirt gets under the boot, the life of the hinge will be reduced by 2–3 times.

What happens if you don't replace the retaining ring?

Without a retaining ring, the CV joint can come off the shaft during sudden acceleration or braking. This will lead to loss of control and a possible accident. On the Sunny FB15, the ring fixes the position of the hinge and prevents axial play.

How to extend the life of an outer CV joint

The average resource of the original CV joint is Sunny FB15 — 100,000–150,000 km. However, with aggressive driving or bad roads, it may fail after 60,000 km. To delay replacement as much as possible, follow these recommendations:

• 🚗 Avoid sudden starts with the wheels turned out. The maximum load on the CV joint occurs when turning under gas.
• 🚗 Check the boots regularly (every 10,000 km). Even a small crack will allow moisture and sand to enter.
• 🚗 Use quality lubricant. Original lubricant Nissan (article KL31-00002) or Molykote BR2 Plus reduces friction and protects against corrosion.
• 🚗 Don't ignore the vibration. Even a slight imbalance accelerates wear on the CV joint and wheel bearing.

If you frequently drive off-road or in high humidity conditions, it is recommended every 30,000 km, remove the boots, wash the CV joint and renew the lubricant. This is labor intensive, but cheaper than replacing the hinge.

Cost of work and where is it better to change

The cost of replacing the outer CV joint is Sunny FB15 depends on the region and type of service station:

Service type	Cost of work (1 side)	Pros	Cons
Official dealer	4 000–6 000 ₽	Warranty, original spare parts	Expensive, long wait
Specialized service station (on the road)	2 500–4 000 ₽	Experienced technicians, fast repairs	Risk of running into unscrupulous craftsmen
Garage craftsmen	1 500–2 500 ₽	Low price, flexible schedule	No guarantee, risk of errors
Self-replacement	0 ₽ (spare parts only)	Savings, quality control	Requires tools and skills

If you decide to change the CV joint yourself, keep in mind that saving on work may result in additional expenses. For example, incorrectly tightening the hub nut will lead to damage to the bearing (replacing it will cost 3,000–5,000 rubles).

The best option is specialized service station with good reviews. Ask the technician to show the removed CV joint and explain the cause of the failure. This will help avoid repeated repairs.

Frequently asked questions about CV joints on Nissan Sunny FB15

Is it possible to drive with a crisp CV joint?

Short term - yes, but not worth the risk. The crunching noise means that the balls in the joint are already worn out. With further operation, the CV joint may become blocked, which will lead to loss of control. The maximum mileage with such symptoms is 500–1,000 km.

How to distinguish a CV joint failure from a bearing problem?

The CV joint crunches when turning, and the bearing hums at speed (the sound does not depend on the angle of rotation of the steering wheel). To accurately diagnose, raise the car on a lift and check the play in the hub. If there is play, the bearing is to blame; if not, but the crunch remains, it’s the CV joint.

Is it necessary to change the inner CV joint if the outer one is broken?

Not necessary, but it is recommended to check its condition. The inner CV joint wears out less often, but if the boot is torn or there is play, it is better to replace both joints at once. This will save time and money in the future.

What lubricant should I use for the CV joint?

Optimal options:

• Molykote BR2 Plus - best price/quality ratio.
• Nissan KL31-00002 - original lubricant, but expensive.
• LIQUI MOLY LM47 — universal, suitable for difficult conditions.

Do not use graphite or lithium grease - they cannot withstand the loads of the CV joint.

What to do if vibration remains after replacing the CV joint?

The reasons may be the following:

1. Incorrect tightening of the hub nut.
2. The wheel bearing is damaged.
3. Wheel imbalance (needs balancing).
4. Defective new CV joint (rare, but it happens).

Return to the service station and ask them to check the tightness and play.