Nissan Almera N16 is a popular sedan that is still actively used on the roads of the CIS. One of the weak points of the model is the front calipers, which require repair over time. Wear of guides, pistons and boots leads to jamming, uneven wear of the pads and deterioration of braking dynamics. In this article we will figure out how to choose the right front caliper repair kit, avoid replacement errors and extend the service life of the brake system.
Many owners Almera N16 They are faced with a problem: after 100–150 thousand km, the calipers begin to “sour”, and official spare parts are unreasonably expensive. We analyzed the spare parts market, reviews from car owners and recommendations from technicians to create a checklist for self-repair. Here you will find article numbers for original and analog repair kits, step-by-step instructions with nuances, as well as answers to frequently asked questions.
Signs of a caliper malfunction: when you need a repair kit
The first symptoms of caliper problems are often ignored, leading to costly repairs. Pay attention to the following “bells”:
- 🔴 Uneven pad wear - one side wears off faster than the other. This indicates that the piston or guides are jammed.
- 🔴 Creaking or knocking when braking, especially at low speeds. The most common cause is a worn piston boot.
- 🔴 Brake disc overheating — after stopping, the disk remains hot, and it gives off a specific burning smell.
- 🔴 Car withdrawal to the side when braking. This may be the result of a jammed caliper on one of the wheels.
If you notice at least one of these signs, do not delay diagnosis. On Nissan Almera N16 With worn calipers, brake hoses often burst due to increased pressure - this can lead to complete loss of brakes! Check the condition of the boots and guides visually: cracks, tears or corrosion are a direct signal to replace the repair kit.
⚠️ Attention: On Almera N16 with enginesQG15DEAndQG18DEThe calipers are identical, but the repair kits may differ in composition. Specify the articles for your modification!
- Every 10 thousand km
- Once a year
- Only when problems arise
- Never checked
Composition of the repair kit: what is included and what parts are critical
Standard front caliper repair kit for Nissan Almera N16 includes:
| Detail | Purpose | Signs of wear |
|---|---|---|
| Piston boot | Protects the piston from dirt and moisture | Cracks, tears, loss of elasticity |
| Piston O-ring | Ensures tightness and smooth piston movement | Loss of elasticity, deformation |
| Caliper guides | Provides mobility of the caliper bracket | Corrosion, scuffing, play |
| Guide boots | Prevents dirt from getting into grooves | Tears, rubber hardening |
| Caliper Lubricant | Reduces friction and protects against corrosion | Drying out, dirty |
Important: cheap repair kits often lack lubricant or its quality leaves much to be desired. We recommend purchasing separately caliper lubricant copper or ceramic based (e.g. TRW PFG110 or ATE Plastilube). It can withstand high temperatures and does not lose its properties over time.
Also note caliper piston. It is not included in most repair kits, but on Almera N16 After 200 thousand km, the pistons often become corroded or scuffed. In this case, you will need to replace the caliper assembly or purchase a piston separately (original article number - 40520-4M000).
Before buying a repair kit, take a photo of the old parts - this will help you compare them with new ones and avoid fakes. Pay special attention to the markings on the boots and seals.
Article numbers of repair kits: original vs analogues
Original repair kit from Nissan for front caliper Almera N16 has an article number 40520-4M00A. However, its price (from 3,500 rubles) often forces owners to look for alternatives. We tested several analogues and compiled a rating:
- 🥇 TRW (
PFC3501) - the best price/quality ratio. Includes high-quality lubricant and reinforced boots. Price: ~2,200 rub. - 🥈 ATE (
03.9902-3724.2) - German quality, but often counterfeited. Check the packaging for the presence of a hologram. Price: ~2,500 rub. - 🥉 Febi (
23310) - a budget option (from 1,500 rubles), but the anthers are less durable. Suitable for temporary repairs. - ⚠️ The cheapest Chinese kits (no brand) - risk of rapid wear and leakage of brake fluid. We do not recommend!
If you choose an analogue, be sure to check the catalogs Nissan or use services for selecting spare parts by VIN. For example, on Almera N16 with ABS, the articles may differ from the version without ABS!
For those who want to save money, there is an option to buy parts separately:
- Piston boot:
40526-4M000(~500 rub.) - O-ring:
40525-4M000(~300 rub.) - Guides:
40528-4M000(set of 2 pcs., ~800 rub.)
⚠️ Attention: On Almera N16 after 2004, calipers used guides with a different diameter (article no. 40528-4M010). Check the year of manufacture of the car before purchasing!
Step-by-step instructions for replacing the repair kit
To work you will need:
- 🔧 Set of sockets and keys (14, 17, 19 mm)
- 🔧 Puller for the caliper piston (can be made from an old brake pad)
- 🔧 Syringe for pumping out brake fluid
- 🔧 WD-40 or similar cleaner
- 🔧 New brake fluid (DOT-4)
Before starting work necessarily remove the negative terminal from the battery - this will prevent accidental activation of the ABS when manipulating the caliper.
Pump out the brake fluid from the reservoir to the MIN level
Loosen the wheel bolts|
Jack up the car and remove the wheel|
Clean the caliper from dirt with a wire brush| -->
Step 1. Removing the caliper
Unscrew the two bolts securing the caliper to the bracket (usually 17 mm). If the bolts are stuck, use WD-40 and a spanner - an open-end wrench can “lick” the edges. After removal, hang the caliper on a wire to the spring so as not to damage the brake hose.
Step 2. Disassembling the caliper
Remove the piston boot by carefully prying it off with a screwdriver. Then press out the piston using a puller or compressed air (no more than 6 bar!). Be careful - the piston can fly out with great force! After removing the piston, clean the caliper cylinder of old grease and corrosion.
Step 3. Installing a new repair kit
Lubricate the new o-rings and boot with special lubricant (do not use regular lithol!). Reinstall them, then carefully push the plunger back in. Before assembly, check the piston stroke - it should move smoothly, without jamming.
Step 4: Replacing the guides
Remove the old guides, clean the seats and apply a thin layer of lubricant to the new parts. Install them and tighten to a torque of 25–30 Nm. Do not overtighten - this will lead to jamming!
Step 5. Assembling and bleeding the brakes
Reinstall the caliper, tighten the bolts and put the wheel on. After assembly be sure to bleed the brake systemto remove air. Start with the right rear wheel, then left rear, right front and left front.
After replacing the repair kit, avoid sharp braking for the first 200 km - the new parts need to get used to.
Common mistakes and how to avoid them
Even experienced craftsmen sometimes make mistakes when repairing calipers. Here are the most common:
- 🚫 Using the wrong lubricant - ordinary lithol or solid oil is destroyed at high temperatures. Use only specialized compounds.
- 🚫 Re-upholstery of guides - This leads to uneven wear of the pads. Tightening torque: 25–30 Nm.
- 🚫 Incomplete bleeding of brakes — air in the system reduces braking efficiency. Pump until liquid comes out of the fitting without bubbles.
- 🚫 Ignoring the condition of the brake discs - if the discs have grooves more than 1 mm deep, they need to be sharpened or replaced.
Another typical problem is damage to the piston boot during installation. To avoid this, use a plastic puller or wrap the piston with electrical tape before pressing. Also, do not forget to check the condition of the brake hoses - Almera N16 they often crack after 10 years of use.
What happens if you don’t replace the repair kit on time?
If you ignore caliper wear, the consequences can be critical:
1. Piston jamming — the wheel will constantly slow down, which will lead to overheating of the disc and brake failure.
2. Brake fluid leak — through damaged boots, liquid will get onto the pads, reducing their effectiveness.
3. Brake disc deformation — uneven braking causes “beating” of the steering wheel and vibrations when stopping.
4. ABS failure — sensors may trigger falsely due to unstable braking.
On Almera N16 With a mileage of more than 150 thousand km, another problem often occurs - corrosion of the piston seat in the caliper. If the cylinder has deep cavities, the repair kit will not help - the caliper assembly will need to be replaced.
Cost of work in the service vs self-repair
Prices for replacing a caliper repair kit in services vary depending on the region:
| Type of work | Cost (RUB) | Time (hours) |
|---|---|---|
| Replacing the repair kit (1 caliper) | 1 500 – 2 500 | 1–1.5 |
| Replacing the repair kit (2 calipers) | 2 500 – 4 000 | 2–3 |
| Bleeding the brake system | 800 – 1 500 | 0.5–1 |
| Replacement of caliper assembly (1 pc.) | 3 000 – 5 000 | 1.5–2 |
When doing your own repairs, you will save 50–70% of the cost, but keep in mind: without experience, there is a risk of making mistakes (for example, damaging the brake hose or incorrectly bleeding the system). If you've never worked on brakes, it's best to leave it to the professionals.
The average cost of a repair kit + service work for two calipers will cost 6,000–9,000 rub. (including pumping). If you replace it yourself, you will only spend on spare parts - 2,000–4,000 rub. (depending on the brand).
Recommendations for caring for calipers after repair
To extend the life of your rebuilt calipers, follow these tips:
- 🔹 Wash the calipers every season (especially in winter) - salt and reagents destroy the anthers. Use special brake cleaners.
- 🔹 Check the brake fluid level every 10 thousand km. On Almera N16 The tank is located inconveniently, but this cannot be ignored.
- 🔹 Lubricate the guides every 30 thousand km. Use only high temperature lubricants.
- 🔹 Avoid aggressive braking the first 200 km after repair - new parts need to get used to.
We also recommend that you conduct visual inspection calipers:
- Check the integrity of the anthers (for cracks or tears).
- Make sure the guides have no play.
- Assess the condition of the brake pads and discs.
If you are exploiting Almera N16 in difficult conditions (frequent off-road driving, aggressive driving style), reduce the inspection interval to 6 months.
After washing your car in winter, dry the calipers with compressed air - this will remove moisture and prevent corrosion.
FAQ: Answers to frequently asked questions
Is it possible to drive with a faulty caliper?
No! A stuck caliper results in uneven braking, overheating of the disc and the risk of complete brake loss. In addition, this accelerates the wear of pads and discs by 2-3 times. At the first sign of a malfunction (creaking, moving to the side), begin repairs immediately.
Which repair kit is better: original or TRW?
According to the test results, TRW It is not inferior to the original in quality, but costs less. The main thing is to buy from trusted suppliers, since TRW fakes are common. The original kit is justified if you plan to sell the car or operate it in extreme conditions.
Do I need to change the brake fluid after replacing the repair kit?
Definitely! Old fluid may contain moisture and impurities that will shorten the life of new seals. On Almera N16 recommended to use DOT-4 with a boiling point not lower than 230°C.
Is it possible to restore the caliper guides?
If the guides have minor corrosion, they can be cleaned and polished. However, if there are burrs or play, replacement is required. Remember: the cost of new guides (~800 rubles) is not comparable with the risk of brake failure.
How long does a caliper repair kit last for Almera N16?
With proper installation and care, the repair kit serves 80–120 thousand km. However, the period depends on operating conditions: in cities with aggressive winters (reagents, salt), the resource is reduced to 60–80 thousand km.