Nissan Primera P12 is a legendary sedan that has gained popularity due to its reliability and comfort. However, even such time-tested cars have weaknesses, one of which is engine mounts. These parts dampen the vibrations of the power unit, but over time the rubber elements wear out, which leads to unpleasant consequences: from increased noise to destruction of fasteners.
In this article we will look at how self-diagnose airbag faults on Primera P12 (including versions with engines QR20DE, QR25DE and diesel YD22DDTi), what symptoms should alert you, and how to choose the right spare parts. We will also give step-by-step replacement instructions taking into account the nuances of the design and typical mistakes that car owners make.
We will pay special attention unique problem Primera P12: premature wear of the right airbag due to the layout of the engine compartment. This point is often missed even in services, which leads to repeated breakdowns after 10–15 thousand km.
Signs of faulty engine mounts Nissan Primera P12
The first signals that the airbags require checking are often attributed to “car features” or wear and tear of other components. However, ignoring them is dangerous: a destroyed support can lead to radiator damage, breakage of pipes or even deformation of the subframe.
Main symptoms:
- 🔊 Increased vibration at idle speed, especially when starting/stopping the engine. Vibration can be transmitted to the steering wheel or body.
- 🚗 Impacts in the front when starting off or changing gears (especially with automatic transmission).
- 🔧 Creaking or knocking from under the hood when driving over bumps. The sound is often confused with suspension problems.
- 🔄 Uneven engine operation: When accelerating sharply, the engine may “nod” or move to the side.
On Primera P12 with diesel engines YD22DDTi The wear of the pillows is more pronounced due to higher vibration loads. Owners of gasoline versions often notice the problem later, when the supports are already partially destroyed.
⚠️ Attention: If vibration is accompanied oil leak from under the pillow, this is a sign of critical wear - the rubber part could burst, exposing the metal body. In this case, the replacement must be carried out within 1–2 days.
- Never
- More than a year ago
- In the last 6 months
- I don't remember
What pillows are installed on Nissan Primera P12
On Primera P12 (2002–2008) three or four engine mounts were installed, depending on the modification:
- 🔧 Front (top) — attached to the spar and bracket on the cylinder block. Most often it fails first.
- 🔧 Rear (bottom) — located on the checkpoint side. On diesel versions it has a reinforced design.
- 🔧 Right side - Installed on the subframe bracket. This is the pillow Primera P12 wears out 2 times faster than others due to uneven load distribution.
- 🔧 Left side — found on some trim levels with automatic transmission.
Original articles of pillows for Primera P12:
| Position | Nissan part number | Applicability | Analogs (brand) |
|---|---|---|---|
| Front | 11210-4M000 |
QR20DE, QR25DE | Febi 22365, Lemforder 31343 01 |
| Rear | 11210-4M010 |
All engines | Sasic 2003068, Sidem 50310 |
| Right side | 11210-4M025 |
QR20DE, QR25DE | Corteco 2003069, Mapco 60200 |
| Front (diesel) | 11210-ED000 |
YD22DDTi | SWAG 30 92 2365 |
When choosing analogues, pay attention to rubber material: cheap cushions made of hard rubber will last no more than 30 thousand km. The best option is polyurethane supports (for example, from Powerflex), which remain elastic longer, but require precise installation.
Before purchasing, check to see if the pillows are sold complete with brackets. On Primera P12 Often it is the metal fasteners that break, not the rubber inserts.
Diagnostics of engine mounts: step-by-step instructions
You can check it yourself without a lift. You will need:
- 🔦 Flashlight or head light.
- 🔧 Mount or long screwdriver.
- 👓 Gloves (rubber pads can be sharp when broken).
Step 1. Visual inspection
Open the hood and inspect each cushion:
- 🔍 On front support Cracks in the rubber or rupture of the metal casing are often visible.
- 🔍 Right side may have traces of oil (if the crankshaft oil seal is leaking).
- 🔍 Check whether the motor is shifted to the side - this is a sign of a broken mount.
Step 2: Checking the play
Take a pry bar and try to move the engine up and down and left and right through the slots in the supports. Play of more than 1–2 mm indicates wear. On Primera P12 especially vulnerable back cushion — its play often leads to gearbox misalignment.
Step 3: Vibration Test
Start the engine and try revving from 1000 to 3000 rpm. If the vibration increases and is transmitted to the body, one of the supports cannot cope with the load. On diesel versions, it is better to carry out the test on a cold engine - vibrations are more pronounced.
Visual inspection for cracks|Checking play with a pry bar|Vibration test when re-gasping|Inspection of subframe fastenings-->
⚠️ Attention: On Primera P12 with automatic transmission wear rear cushion may simulate a torque converter malfunction (jerking when switching). Before replacing the gearbox, be sure to check the supports!
Step-by-step replacement of engine mounts Nissan Primera P12
To replace you will need:
- 🔧 A set of sockets and keys (especially
14 mm,17 mm). - 🔧 Jack and stand for the engine (you can use a wooden block).
- 🔧 WD-40 or similar penetrating lubricant.
- 🔧 Torque wrench (preferably).
Important! On Primera P12 it's impossible Lift the engine by the oil pan or gearbox only using the special lugs on the cylinder block. As a last resort, use a wide belt across the side members.
Work order (using the front airbag as an example):
- Remove the engine protection (if equipped) and disconnect the negative terminal of the battery.
- Jack up the engine by placing a block of wood between the jack and the oil pan (but without putting any weight on it!).
- Unscrew the bolts securing the cushion to the side member and engine bracket (usually 3-4 bolts per
14 mm). - Remove the old pillow and compare it with the new one - sometimes even original spare parts differ in hardness.
- Install the new support by tightening the bolts criss-cross with effort
50–60 Nm. - Lower the engine and check for distortions.
For right side airbag You will need to remove the subframe (on some versions). The main point here is - do not confuse the tightening torques subframe bolts (80–100 Nm) and the pillow itself (40–50 Nm).
What happens if you don't replace the pillow on time?
If the support is completely destroyed, the engine may move 5–10 cm, which will lead to breakage of the cooling system pipes, damage to the radiator, or even deformation of the frame. On diesel Primera P12 This is fraught with a break in the turbocharger.
Typical replacement mistakes and how to avoid them
Even experienced craftsmen make mistakes that shorten the service life of new pillows. Here are the most common:
- Use of non-original bolts. Bolts of pillows on Primera P12 have a special coating and strength class. Replacing them with conventional ones will lead to corrosion or thread failure.
- Incorrect tightening. If you tighten the bolts in weight (without supporting the engine with a jack), the cushion will work under constant load and will last 2–3 times less.
- Ignoring brackets. On cars older than 2005, metal mounting brackets often break. They need to be checked and replaced if necessary (items:
11215-4M000for the front,11215-4M010for the rear). - Replacement of only one pillow. If one support is worn out, the rest are also close to the limit. Saving on the kit will lead to repeated repairs after 20–30 thousand km.
One more nuance - polyurethane pillows. They are more durable than rubber ones, but require running-in: For the first 500 km, avoid sharp starts and high speeds so that the material gets used to it.
On Primera P12 with a mileage of more than 150 thousand km, it is recommended to replace all engine mounts with a set, even if visually some look normal. This will prevent load imbalance.
Cost of work and spare parts: where is it cheaper?
Prices for pillows and labor vary depending on the region and type of service:
| Spare part/service | Cost (original) | Cost (analog) | Cost of work (service station) |
|---|---|---|---|
| Front airbag | 4 500–6 000 ₽ | 1 800–3 000 ₽ | 1 500–2 500 ₽ |
| Rear cushion | 5 000–7 000 ₽ | 2 000–3 500 ₽ | 2 000–3 000 ₽ |
| Right side | 3 800–5 500 ₽ | 1 500–2 500 ₽ | 2 500–3 500 ₽ |
| Set (3 pcs.) | 12 000–18 000 ₽ | 5 000–8 000 ₽ | 5 000–7 000 ₽ |
Replacing it yourself will save up to 50% of the cost. However, if you do not have experience working with jacks and a torque wrench, it is better to contact a service center - errors during installation will cost more.
Where to buy spare parts:
- 🛒 Official dealers - guarantee of originality, but high price.
- 🛒 Online stores (Exist, Autodoc, Emex) - a wide selection of analogues, often with discounts.
- 🛒 Showdown - a budget option, but the pillows there are usually already worn out.
When purchasing analogues, check availability certificate of conformity - there are many fake brands on the market Febi or Lemforder.
Frequently asked questions about engine mounts Nissan Primera P12
Is it possible to drive with a torn airbag?
Short-term (up to 1-2 weeks) - yes, but only if the rubber is not completely torn and the engine is not displaced. Long driving will lead to:
- 🔧 Damage to the cooling system pipes.
- 🔧 Wear of gearbox fasteners (on automatic transmission - to breakdown of the torque converter).
- 🔧 Deformation of the subframe during strong impacts.
On diesel Primera P12 even a slight play in the cushion accelerates wear on the turbine.
How often should pillows be changed?
Service life depends on operating conditions:
- 🚗 City mode (frequent starts/stops): 80–100 thousand km.
- 🛣️ Route (uniform load): up to 150 thousand km.
- ❄️ Extreme temperatures (frosts below -30°C): resource is reduced by 30–40%.
On Primera P12 with a mileage of more than 200 thousand km, the airbags should be checked every 20 thousand km.
Which pillows are better - rubber or polyurethane?
Comparison:
| Parameter | Rubber | Polyurethane |
|---|---|---|
| Service life | 50–80 thousand km | 100–150 thousand km |
| Vibration isolation | good | Medium (harder) |
| Price | Low | 1.5–2 times more expensive |
| Installation | Simple | Requires precise alignment |
For Primera P12 with a mileage of more than 150 thousand km is optimal combined option: install polyurethane cushions on the front and right, and rubber on the rear (for better vibration insulation).
Is it necessary to do a wheel alignment after replacement?
No, replacement of pillows no effect on the wheel alignment angles. However, if the subframe or brackets were removed during repairs, it is recommended to check:
- 🔧 Alignment of the front wheels (visually or on the stand).
- 🔧 Play in the steering rods - sometimes when the engine is lifted, the load displaces the suspension elements.
Is it possible to restore old pillows?
Theoretically yes, but this is a temporary solution. Methods:
- 🔧 Rubber vulcanization - Suitable for small cracks. Cost: 1,000–1,500 RUR per pillow.
- 🔧 Installation of the repair kit (new rubber insert). Suitable for poles with a complete metal body.
- 🔧 Using Epoxy Resin - only for emergency repairs (will last up to 5 thousand km).
On Primera P12 restoration is only appropriate for rear cushion, since it is less loaded. It is better to replace the front and right supports with new ones.