Despite its age, the car Nissan Primera P11 still remains in demand in the secondary market due to its reliability and comfort. However, with a mileage of 200 thousand kilometers or more, owners inevitably encounter vibrations that are transmitted to the body and steering wheel. Most often, the source of this problem is not a worn-out engine or transmission, but failed rubber-metal suspension elements of the power unit.
The situation is especially critical with the front right support, which takes the main load during acceleration and braking. Ignoring the symptoms leads to destruction of the bracket, damage to the exhaust system, and even failure of the engine control unit itself due to constant impacts. In this article, we will look in detail at how to recognize a malfunction, what tools are needed, and how to properly replace it in order to return the car to factory smoothness.
Why do the supports on the P11 model collapse?
Rubber in engine mount Nissan Primera exposed to constant thermal and mechanical stress. Under the hood, temperatures can reach 100 degrees, and vibrations from a 1.6 or 2.0 liter engine create cyclic deformations that eventually lead to material fatigue. That is why, even with careful driving, the resource engine mounts rarely exceeds 100-120 thousand kilometers.
It is important to understand that the rubber bushing on the right support often ruptures, which leads to the metal cup starting to hit the body bracket. This creates a characteristic dull knock, which intensifies when starting from a stop or sharp braking. The left support, on the contrary, more often simply loses its elasticity and begins to “beat”, ceasing to dampen vibrations, which is felt as strong vibration on the steering wheel.
In addition to natural wear and tear, durability is affected by aggressive chemicals from the roads and oil stains. If there is a seal leak in the engine compartment, the oil eats away at the rubber, turning it into crumbs in a matter of months. In such cases, replacement supports must be accompanied by eliminating the source of the leak, otherwise the new part will quickly become unusable.
Symptoms of malfunction and diagnostic methods
It is possible to determine that the problem is in the support by a number of specific signs that appear during movement or when the engine is idling. The most obvious symptom is a strong vibration transmitted to the body when you stand at a traffic light with the gear engaged (for manual transmission) or in Drive mode (for automatic transmission). If the vibration disappears when you shift to neutral, the diagnosis is almost obvious.
The second sure sign is the appearance of shocks during a sharp start. Try pressing hard on the gas and letting it go. If you hear a metallic clunking sound from the front, it means the engine is moving too much under the hood, hitting the body or other components. It is also worth paying attention to the condition bracket and fastening bolts - they are often covered with cracks or rust.
- 🔧 The appearance of strong vibration on the steering wheel and driver’s seat when the engine is running.
- 🔧 Metallic knocking or clanging when changing gears or sharply pressing the gas pedal.
- 🔧 Visual tear in the rubber part of the support, visible when viewed from below or above.
For an accurate diagnosis, it is not necessary to immediately disassemble the engine compartment. It is enough to place the car on a pit or a lift and ask an assistant to sharply accelerate in neutral while holding the brake. As you watch the engine, you will see how much it moves. If the displacement exceeds 1-1.5 cm, it means that one of the supports does not support the load.
Selection of spare parts: original versus analogues
When choosing a new support for Nissan Primera P11 the market offers many options, from expensive original parts to budget Chinese analogues. Original support Nissan (number 11205-3S500 for the right) provides an ideal balance of stiffness and damping, but is quite expensive and is often found on sale as “no-name” spare parts under the original number.
Analogues from such manufacturers as 555, KYB or Sakura, may be a worthy replacement, but require careful testing. Chinese copies often use low quality rubber, which cracks after just six months of use. In some cases, owners install reinforced supports from more powerful versions, which changes the nature of vibrations for the worse.
| Manufacturer | Part type | Approximate price | Service life |
|---|---|---|---|
| Nissan (OEM) | Full set (hydraulics/rubber) | High | 100,000+ km |
| 555 (Japan) | Rubber-metal | Average | 60,000 - 80,000 km |
| Silent (China) | Rubber bushing | Low | 15,000 - 30,000 km |
| Specialty brands | Reinforced support | Medium/High | Depends on quality |
⚠️ Attention: When purchasing a spare part, be sure to check the availability of factory stamps and the quality of metal casting. Often, copies with geometry defects that do not allow the bolts to be tightened correctly are sold under the guise of the original.
- Original Nissan
- Japanese analogues (555, KYB)
- Chinese analogues
- Reinforced (tuning)
Tools and preparation for replacement
Before starting work, it is necessary to prepare a set of tools, since access to some bolts on Primera P11 may be difficult. You will need a standard set of sockets with extensions, wrenches and, preferably, a torque wrench for proper tightening. Pay special attention to the 14, 17 and 19 mm heads that are used to attach the supports.
You will also need a jack and stand (tragus) to safely support the engine. Never trust the weight of the engine to the jack alone - place a piece of board under it to avoid damaging the oil pan. If you are working in a pit, make sure you have good access to the bottom of the subframe.
- 🛠️ Set of socket heads and wrenches (10, 12, 14, 17, 19 mm).
- 🛠️ Socket extension and ratchet (for access to rear bolts).
- 🛠️ Jack and reliable engine stand.
- 🛠️ WD-40 or penetrating lubricant for rusty bolts.
Clean the area around the support from dirt and dust. This will not only make the job easier, but will also prevent abrasive from getting into the new bearings and rubber elements. If the fastening bolts are stuck, treat them with penetrating lubricant 15-20 minutes before unscrewing. In some cases it may be necessary to use a heater, but do so with extreme caution to avoid damaging rubber parts or wiring.
☑️ Preparing to replace the engine mount
Step-by-step instructions for replacing the right support
Replacing the right support is the most difficult procedure, since it is located in a hard-to-reach place and bears heavy loads. You will first need to remove the battery and air filter housing to gain access to the top mounting bolts. On SR20DE and QG18DE engines, access may differ, but the general principle remains the same.
Jack up the engine from below by placing a board under the oil pan. Smoothly lift the engine until the load on the support is removed. Now you can unscrew the bolts securing the upper part of the support to the body and the lower part to the engine. Be careful: after unscrewing the bolts, the support may move abruptly, so hold it with your hand.
Remove the old part and compare it with the new one. Make sure the holes match and the installation height is identical. Install the new support, but do not tighten the bolts all the way right away. First, tighten them by hand, then lower the engine onto the support so that it takes its normal position under load.
Only after the engine is on the new mount, tighten all bolts to the recommended torque. For Nissan Primera P11 this is usually about 60-80 Nm for the upper bolts and 100-120 Nm for the lower ones (check in the service book). A pinched support will quickly collapse, and a pinched support will lead to backlash.
What to do if the bolt does not come off?
If the bolt does not budge, try heating it with a blowtorch or gas torch. Sometimes using an impact screwdriver or a special extractor helps. Do not use excessive force to avoid stripping threads in the engine block, as this will result in costly repairs.
The main secret to a successful replacement is to remove the load from the support before unscrewing the bolts and final tightening only after installing the engine on the new part under load.
Features of replacing the left and rear supports
Left engine mount on Nissan Primera P11 attached to the gearbox and subframe. Replacing it is easier, since it is more accessible, but requires caution when working with transmission elements. Often when replacing the right support, wear is also detected on the left one, so it is recommended to replace them as a set to avoid imbalance.
The rear support (or "bone") is attached to the body at the rear of the engine. It often breaks precisely at the junction of rubber and metal. When replacing it, it is important to correctly set the engine position so as not to distort the drives and CV joints. If you are only replacing one support, make sure the others are in good condition.
- 🔧 Check the condition of the subframe silent blocks when replacing supports.
- 🔧 Do not allow the motor to skew during installation, this is dangerous for the drives.
- 🔧 Use new bolts if the old ones show signs of deformation or thread failure.
After replacing all the bearings, be sure to check the engine operation at idle and when shifting gears. The vibration should completely disappear and the knocking should stop. If the vibration remains, the problem may not be with the bearings, but with an imbalance in the flywheel or other components.
⚠️ Warning: Do not attempt to replace the mounts without removing the engine from the subframe if this is required to access the fasteners. Failure to do so may result in damage to hoses or wiring.
If you are changing the right support, be sure to check the condition of the CV boot, as it may become damaged due to engine displacement when the load is removed.
Frequent maintenance errors
Many owners make the mistake of trying to save money on quality parts or tools. Installing cheap analogues often leads to the fact that after a month you have to raise the car again and change the support. They also often forget about the need to replace fastening bolts, which can be disposable or have special protection against unscrewing.
Another common mistake is not tightening the bolts correctly. If you tighten them too much, the rubber will not be able to act as a damper and will quickly tear. If you tighten it loosely, the engine will dangle, creating vibrations and shocks. Use a torque wrench and follow the recommended torque values.
Sometimes when replacing supports they forget to check the condition of the subframe cushions. If the subframe is skewed, even a new support will not save you from vibrations. In such cases, it is necessary to hang the subframe and center it before installing new supports.
The quality of the assembly and the correct tightening of the bolts are just as important as the quality of the spare part itself. Errors at the installation stage can ruin all replacement efforts.
FAQ: Answers to popular questions
How much does it cost to replace an engine mount at a service center?
The cost of working in the service varies from 3,000 to 6,000 rubles per support, depending on the complexity of access and the region. Replacing a set of three supports will cost less than replacing them individually.
Is it possible to replace the mount without removing the engine?
Yes, in most cases Nissan Primera P11 The support can be replaced without completely removing the engine. It is enough to lift it with a jack and loosen the fasteners. However, the rear support sometimes requires removal of the subframe.
What symptoms indicate wear on the right bearing?
The right bearing is often the first to fail. Symptoms: a strong knocking sound when starting off, vibration during acceleration, visual tearing of the rubber and engine shifting to the right during sudden braking.
Do I need to replace all three supports at once?
It is advisable to replace all the supports as a set, especially if the car's mileage exceeds 100 thousand kilometers. This will ensure an even load and prevent rapid wear of new parts due to misalignment.
How often should the condition of the supports be checked?
It is recommended to inspect the engine mounts at every maintenance (every 10-15 thousand km) or when the first signs of vibration appear. A visual inspection and checking for cracks will help avoid serious problems.