Vehicle operation Nissan Almera generation G15 on Russian roads often becomes a test for the suspension. The rear beam and front independent suspension experience enormous loads, but it is the front springs that are the first to take the blow when driving over bumps, potholes and speed bumps.
Many owners notice that after a few years the car loses its former smoothness, begins to roll in corners, or even sags on one side. These are sure signs that front springs have lost their elastic properties. Ignoring the problem leads to accelerated wear of shock absorbers and destruction of other elements of the chassis.
Choosing a new part is not just about buying hardware. It is necessary to take into account the catalog numbers, depending on the year of manufacture and body type, and also understand the difference between standard and reinforced versions. The correct approach to replacement will allow you to return Nissan Almera G15 factory handling characteristics.
Design and features of Almera G15 front springs
Front suspension Nissan Almera (G15) is built according to the MacPherson scheme, where the spring works in tandem with the shock absorber, forming a single unit. Unlike some competitors, here the spring does not have an upper stop in the form of a glass, but rests directly on the lower shock absorber cup and the upper support cup of the body.
Factory spring coils are made of high-strength spring steel using hot coiling technology. This provides high fatigue strength, but during prolonged use the metal inevitably gets tired. It is important to understand that even a visually intact spring may have microcracks that reduce its rigidity.
A special feature of the G15 design is the presence of two types of springs depending on the configuration and engine. For models with a 1.6-liter engine (H4M), springs with a certain coil pitch and wire diameter are installed. For versions with air conditioning and full power accessories, which are heavier, parts with greater rigidity can be used.
The lower spring support often has a rubber gasket that dries out over time. If it is destroyed, metal begins to come into contact with metal, causing an unpleasant knocking sound. When replacing a spring, it is strongly recommended to immediately change these rubber insulators, since they are consumables.
- 🔧 Standard springs are designed for standard loading and a comfortable ride
- 📉 Heavy-duty options are suitable for full-load or towing use
- 🎨 Color marking on the coils indicates the stiffness class and manufacturer
Diagnostics of wear and characteristic signs of failure
You can determine that a spring requires replacement not only by appearance. The most obvious sign is a change in ride height. If you notice that the front Nissan Almera has become lower than the rear, or the car is tilting to one side, this is a signal for action.
The second sure symptom is a change in the car's behavior on the road. The car may begin to “float” along the road, wag its stern, or react too sharply to bumps. The shock absorber, working in tandem with a sagging spring, does not have time to dampen vibrations, which leads to breakdowns.
Look at the bottom spring cup. If you see traces of rust going up the coils, or the coils themselves have cracks, the part must be replaced immediately. Sometimes the spring breaks at the bottom, and the coil simply falls inside the shock absorber, which leads to complete destruction of the unit.
It is also worth paying attention to the operation of the anti-roll bar. If the spring has sagged, the stabilizer may work misaligned, causing knocking in the suspension even on a flat road. Do not delay diagnosis, as driving with a sagging spring can damage the brake pipes.
⚠️ Attention: If you hear a sharp metal grinding sound when driving through a hole, stop immediately. This may mean that the spring is completely destroyed and the coil has moved, touching other suspension elements.
- 👀 Visual inspection for cracks and signs of corrosion of coils
- 📏 Measurement of ground clearance on both sides to detect misalignment
- 🚗 Test drive for increased roll and suspension breakdowns
- Body sagging
- Knocking in the suspension
- Deterioration in handling
- Visual crack
Catalog numbers and manufacturer's choice
When purchasing new springs for Nissan Almera G15 It is extremely important to rely on catalog numbers, as they vary depending on the year of manufacture and engine type. Using an unsuitable part can lead to wheel alignment problems and accelerated rubber wear.
Original numbers for front suspension often start with the prefix 40210. However, it is worth remembering that the original is often produced by third party giants such as Kayaba, NTN or Mitsuboshi. Buying an analogue directly from the manufacturer can be more profitable and of higher quality than buying the “original” in a Nissan box.
The market offers many analogues. Among the popular brands it is worth highlighting KYB (Japan), which produces springs with excellent geometry and durability. Also worthy of attention Goodyear and Febi, which offer good value for money for everyday use.
If you plan to use the vehicle on rough roads or with heavy loads, consider installing reinforced springs. For example, products ProSport or Plaza offers options with increased travel and stiffness, which reduces the risk of shock absorber breakdown.
| Spring type | Manufacturer | Approximate number | Features |
|---|---|---|---|
| Standard | Original Nissan | 40210-1HC0A | Perfect balance, but high price |
| Standard | Kayaba | 4343-160 | Excellent geometry, affordable price |
| Reinforced | ProSport | PS-ALM-F | Increased rigidity for bad roads |
| Economy | Febi | 35665 | Low price, average durability |
Before purchasing, be sure to remove the old spring and measure its free height. This will help you determine exactly what spring rate you need if the original number is lost or the spring is already deformed.-
Preparation for replacement and necessary tools
Replacing the front springs with Nissan Almera G15 is a task that requires a certain skill and set of tools. You will need a lift or inspection pit, as well as reliable supports for the car. It is strictly forbidden to work on a jack without stands, since the spring is under enormous tension.
Spring ties are a must-have tool. Without them, it is impossible to safely remove the spring from the shock absorber. Attempting to unscrew the shock absorber rod nut without tightening the spring will cause the spring to fly out with tremendous force, which can result in serious injury.
You will also need: a wheel wrench, a set of sockets (including a 19 socket for the rod nut), Torx wrenches for attaching the caliper and brake rotor, and WD-40 penetrating lubricant. If the stem nut is stuck, you may need a gas wrench or a special puller.
Before starting work, be sure to disconnect the battery terminal to avoid accidental short circuit when removing suspension elements. Inspect the mounting bolts and, if necessary, treat them with lubricant to make unscrewing easier.
- 🔩 A set of ties for springs (necessarily reliable and proven)
- 🛠️ Set of sockets and keys: 14, 17, 19, 21, as well as Torx T40, T50
- 🌪️ Penetrating lubricant and wire brush for cleaning threads
☑️ Preparation for replacement
Step-by-step instructions for replacing springs
Start the process by removing the wheel. Unscrew the caliper mounting bolts and hang it on a wire so as not to damage the brake hose. Then remove the brake disc and unscrew the bolts securing the steering knuckle to the shock absorber (usually the two bolts at the bottom).
Next, you need to disconnect the stabilizer bar link from the shock absorber. If the nut is stuck, use a puller or gently tap to remove the pin. After this, unscrew the nut securing the shock absorber to the body in the engine compartment. Be careful not to lose the washers and nuts.
By lowering the shock absorber down, you can remove it along with the spring. Now mount the shock absorber on the workbench and install it on the tie spring. Compress the spring evenly on both sides until it stops pressing on the upper support. Only after this can you unscrew the shock absorber rod nut.
Assemble the new unit: install a new spring (with rubber gaskets), put on the upper support and tighten the rod nut. Make sure the spring is seated correctly. Unclench the ties and install the finished unit on the car in the reverse order.
⚠️ Attention: When tightening the shock absorber rod nut, use a second wrench to hold the rod hex. If this is not done, you may damage the shock absorber's internal seals or strip the threads.
What to do if the stem nut does not unscrew?
If the nut is stuck, do not try to turn the rod with a wrench - this will break the shock absorber. Use a special rod holder or a gas wrench, resting it against the hexagon on the rod itself. Preheat the nut with a hair dryer or blowtorch (carefully, without overheating the rubber!).
Replacing springs should always be done in pairs on the same axle to avoid body distortion and uneven tire wear.-
Installation and wheel alignment
After the new springs are installed and all the bolts are tightened, you need to lower the car to the ground. Only on the wheels are the bolts securing the levers and shock absorbers to the body tightened with the prescribed torque. This is a critically important point, since tightening “in weight” will lead to distortion of the rubber bands and their rapid destruction.
Immediately after replacing the springs, a procedure is required wheel alignment. Changing the spring stiffness and body height inevitably changes the wheel alignment angles. Driving without adjustment will cause the tires to “eat up” within a couple of thousand kilometers.
Also check the steering operation. If the steering wheel becomes crooked, its position can be adjusted at the wheel alignment stand. Do not try to straighten the steering wheel by simply tightening the tie rods - this will disrupt the suspension geometry.
For the first 500-1000 km after replacing the springs, it is recommended to avoid extreme driving and deep holes. New springs go through a short break-in period, and sudden impacts can disrupt their geometry. Re-check the tightening of the suspension bolts after 500 km.
- 📐 Mandatory adjustment of wheel alignment angles on the stand
- 🚗 Checking the tightness of all suspension bolts after running in
- 🛞 Monitoring the condition of tires for uneven wear
Common replacement errors and their consequences
One of the biggest mistakes is using old rubber spring gaskets. Over time, rubber hardens and crumbles, losing its shock-absorbing properties. Installing an old gasket under a new spring will lead to metallic knocking and accelerated wear of the body.
Another common mistake is replacing only one spring. If one spring has sagged, the second is most likely already in critical condition. The difference in body height will lead to disruption of the suspension kinematics and problems with handling.
Incorrect installation of the spring relative to the seats also occurs. The spring must clearly coincide with the protrusions on the body cup and shock absorber. If it is skewed, it may “jump” out of the bowl when driving, which will lead to an instant loss of control.
Sometimes technicians forget to check the condition of the shock absorber support bearings. If the bearing seizes, the new spring assembly will not work correctly and the steering wheel will have difficulty returning to center. Always inspect these items when replacing springs.
Why does the suspension rattle after replacement?
If a knocking sound appears after replacing the springs, check the rubber gaskets of the springs, the condition of the support bearings and the correct installation of the spring in the cup. Often the knocking noise is caused by the spring not being fully seated.
FAQ: Answers to frequently asked questions from owners
How long are the front springs on the Nissan Almera G15?
On average, standard springs last from 100,000 to 150,000 km. However, the actual resource greatly depends on the quality of roads and operating conditions. On bad roads they can sag by 80,000 km.
Is it possible to install springs from Nissan Note on Almera G15?
No, this is not recommended. Although the platforms are similar, the geometric parameters of the springs (height, stiffness, diameter) are different. Installing the wrong springs will disrupt the suspension and can be dangerous.
Do shock absorbers and springs need to be replaced?
If shock absorbers have a mileage of more than 100,000 km and show signs of wear (leaking, knocking, poor performance), it is better to replace them. The old shock absorber will not be able to effectively dampen the vibrations of the new stiff spring.
What happens if the spring breaks on the road?
The car sags sharply on one side, the suspension jams, and damage to the brake pipes and disc is possible. Driving on a broken spring is strictly prohibited; evacuation is required.
How to distinguish the spring for the version with air conditioning?
Springs for versions with air conditioning usually have a smaller coil pitch and are marked with a different color. The exact information can be found in the catalog by the vehicle's VIN code, since the visual difference is not always obvious.