Steering cardan (or intermediate steering shaft) in Nissan Primera P12 - a critical element that transmits rotational motion from the steering column to the rack. Its wear or breakdown is manifested by knocking when turning the steering wheel, play or even jamming of the mechanism. If you notice these symptoms, you cannot delay replacement: a faulty cardan not only impairs handling, but also creates an emergency situation on the road.
In this article we will look at how to independently replace the steering cardan with Primera P12 (including modifications with engines QR20DE, QR25DE and diesel YD22DDTi). You will learn what tools you will need, how to avoid common mistakes and what to look for when choosing a spare part. The instructions are suitable for owners with basic repair skills - the main thing is to follow the step-by-step algorithm and take precautions.
Signs of a faulty steering gearbox on Primera P12
The first signals of problems with the driveshaft are often ignored, as they are confused with wear on the steering rack or suspension. However, this part has characteristic symptoms, which help to accurately diagnose a breakdown:
- 🔊 Knocking or squeaking when turning the steering wheel (especially noticeable on uneven roads or during sudden movements). The sound usually comes from under the instrument panel on the steering column side.
- 🎛️ Steering wheel play — a feeling of “looseness” when rotating, when the steering wheel turns and the wheels react with a delay.
- 🚗 Vibration on the steering wheel when driving in a straight line, which intensifies at high speeds (over 80 km/h).
- ⚠️ Steering wheel jammed in extreme positions - a rare but extremely dangerous sign that requires an immediate stop of the car.
To confirm the malfunction, carry out a simple test: ask an assistant to sharply turn the steering wheel left and right, mientras you listen to sounds from under the hood and steering column. If the knock is clearly synchronized with the movements of the steering wheel, the problem is in the cardan or its fastenings.
⚠️ Attention: If you hear when turning the steering wheel metallic crunch, this may indicate destruction of the splined connection between the cardan and the rack shaft. In this case, operating the car is strictly prohibited - towing with a tow truck is required!
What tools and spare parts will be needed
To replace the steering cardan with Nissan Primera P12 You don’t need specialized equipment, but you can’t do without some tools. Here's the full list:
| Category | Name | Note |
|---|---|---|
| Tools | 10, 12, 14 mm sockets | It is better to use an extended wrench to access the mounting bolts |
| Tools | Ratchet handle | Will speed up the process of unscrewing nuts in cramped conditions |
| Tools | Slotted screwdriver (flat blade) | For removing circlips or prying off boots |
| Consumables | New steering cardan | Original art. 48520-4M000 or analogues: Febi 22721, TRW JTC1144 |
| Consumables | Spline Lubricant | Recommended Molykote G-Rapid Plus or LIQUI MOLY LM47 |
When choosing a spare part, pay attention to shaft length - on Primera P12 two types of cardan shafts were installed: short (for models with QR20DE) and extended (for QR25DE and diesels). Check your car's VIN or check the catalog Nissan EPCto avoid errors.
- Socket heads
- Ratchet handle
- Jack and supports
- None of the above
Preparing the car for replacement
Before starting work, it is necessary to ensure safe access to the steering mechanism. Follow these steps:
- Place the car on flat area (it is better to use a viewing hole or a lift). If you work on jacks, be sure to secure the rear wheels with stops and install safety stands.
- Remove negative terminal from the batteryto avoid a short circuit when working with the steering column (on some modifications you will have to turn off the airbag).
- Loosen the steering wheel nut (central bolt on
24 mm), but do not remove it completely - this will make it easier to remove the driveshaft later. - Make sure the steering wheel is locked in the straight position (the ignition key must be in the
LOCK).
If you do not have an inspection hole, you will have to remove sump guard (if installed) and partially dismantle the front panel on the driver's side to access the upper driveshaft mounting. On models with air conditioning, you may need to temporarily move the refrigerant pipes aside - do this carefully to avoid damaging them.
Before starting work, take photographs of the location of all connectors and fasteners under the instrument panel. This will help avoid mistakes during reassembly, especially if this is your first time disassembling the interior. Primera P12.
Step-by-step instructions for replacing the steering joint
The replacement process can be divided into two stages: dismantling the old cardan and installing a new one. Let's look at each in detail.
1. Removing the old cardan
☑️ Preparation for dismantling
Start with the salon:
- Remove bottom plastic panel under the steering column (attached with 2-3 screws and latches). Be careful - plastic on Primera P12 fragile, especially after 15+ years of use.
- Unscrew the bolt securing the cardan to the steering shaft (usually
12 mm). It may be hidden under a rubber cover - carefully cut it off with a knife if it is in the way. - Go under the car and find the joint between the driveshaft and the steering rack. Here you will need to unscrew the nut on
14 mmholding the shaft. Important: before unscrewing, mark with a marker the relative position of the cardan and the rack - this will help maintain the correct installation angle of the new shaft. - After unscrewing the nuts, remove the cardan by pulling it towards the interior. If it gets sour, use a puller or gently tap it with a hammer through a wooden spacer.
2. Installing a new cardan
Before installing a new shaft, be sure to:
- 🧴Apply lubricant for spline joints (both on the steering column side and on the rack side). This will prevent squeaks and corrosion.
- 🔧 Check integrity anthers on the new cardan - they should be without cracks or tears.
- 🔄 Make sure that marks on the shaft and rack coincide with those you did during dismantling.
Installation is done in reverse order:
- Insert the new cardan into the steering rack and secure with a nut (tightening torque -
35-45 Nm). - Connect the upper part of the shaft to the steering column and tighten the mounting bolt.
- Reinstall the plastic panel under the steering wheel and connect the battery.
- Check the steering operation: smoothly turn the steering wheel left and right, listening for extraneous sounds.
After replacing the driveshaft, be sure to follow the procedure steering rack alignment: With the car running, slowly turn the steering wheel from lock to lock 2-3 times. This will help distribute the lubricant evenly in the rack and avoid its premature wear.
Common mistakes and how to avoid them
Even experienced craftsmen sometimes make mistakes when replacing the steering shaft. Here are the most common ones and how to prevent them:
- 🔧 Labels do not match during installation → Leads to a shift in the angle of rotation of the wheels relative to the steering wheel. Always mark with a marker before dismantling!
- 🛠️ Using non-original bolts → Standard universal joint mounting bolts Primera P12 have special strength. Replacing them with “left” ones can lead to self-unscrewing.
- 🧴 Lack of lubrication on splines → Without lubrication, the new cardan will begin to creak after 1-2 thousand km. Use only high temperature molybdenum based lubricants.
- 🚗 Failure to check play after installation → If you do not eliminate the play in the connections, the steering wheel will “lobble”. After assembly, be sure to check the clearances by rocking the shaft by hand.
Another common problem is damage to anthers during installation. If the boot on the new cardan is torn, do not take risks - replace it immediately. Dust and moisture will quickly damage the spline connection, and after 10-15 thousand km you will have to disassemble everything again.
⚠️ Attention: On diesel versions Primera P12 (engine YD22DDTi) the steering shaft passes close to the turbocharger. When replacing the cardan shaft, make sure that tools or parts do not touch the turbine - this may damage it!
Cost of work and spare parts: which is cheaper - do it yourself or have it serviced
Cost of replacing steering gearbox Nissan Primera P12 varies depending on region and service level. Let's look at the estimated costs:
| Item | On your own | Service (unofficial) | Official dealer |
|---|---|---|---|
| Spare part (original) | 3 500 — 5 000 ₽ | 4 000 — 6 000 ₽ | 6 000 — 8 500 ₽ |
| Spare part (analogue) | 1 800 — 3 000 ₽ | 2 500 — 4 000 ₽ | They don't offer |
| Work | 0 ₽ | 1 500 — 2 500 ₽ | 3 000 — 5 000 ₽ |
| Total (original) | 3 500 — 5 000 ₽ | 5 500 — 8 500 ₽ | 9 000 — 13 500 ₽ |
As can be seen from the table, self-replacement allows you to save up to 50-70% cost. However, keep in mind that without experience, the work may take 3-4 hours (versus 1-1.5 hours for a professional). If you are not confident in your abilities, it is better to contact a service center - errors when working with the steering are too dangerous.
Where to buy a high-quality cardan for Primera P12?
It is better to order original spare parts from official dealers Nissan or trusted suppliers such as Existed or JapanParts. Among analogues, brands have proven themselves well Febi (Germany), TRW (USA) and NK (Japan). Avoid cheap Chinese fakes - their service life rarely exceeds 20-30 thousand km.
Prevention: how to extend the life of the steering cardan
The service life of the steering gearbox is Primera P12 depends not only on the quality of the part, but also on the operating conditions. Follow these guidelines to avoid premature wear:
- 🛣️ Avoid driving through deep potholes at high speed - sharp impacts destroy spline joints.
- 🧴 Check the boots periodically on a cardan (once every 10-15 thousand km). Cracks or breaks are a signal for replacement.
- 🔧 Lubricate the splines at every maintenance (every 15-20 thousand km). Use lubricants with high adhesion, e.g. LIQUI MOLY LM47.
- 🚿 Wash the steering gear when visiting a car wash, but avoid direct contact of pressurized water with the anthers.
If you frequently drive off-road or in high humidity conditions (for example, in coastal regions), reduce the driveshaft inspection interval to every 10 thousand km. Corrosion and dirt are the main enemies of spline joints.
FAQ: Frequently asked questions about replacing the steering joint on a Primera P12
Is it possible to drive with a knocking cardan?
Short term - yes, but it is extremely dangerous. A knock indicates play in the connections, which can lead to complete loss of control at speed. We recommend replacing the part within 1-2 days after detecting a malfunction.
Which cardan is better - original or analogue?
Original cardan (48520-4M000) lasts longer (100-150 thousand km), but costs more. High-quality analogues (Febi, TRW) are 30-40% cheaper, but their service life is about 80-100 thousand km. If your budget allows, take the original.
Do I need to do a wheel alignment after replacement?
No, replacing the driveshaft no effect on the wheel alignment angles. However, if during dismantling you touched the steering rods or rack, checking the toe will not hurt.
Is it possible to replace the driveshaft without a pit?
Yes, but it's more complicated. You will need to jack up the front of the car and remove the engine protection. You will also have to partially disassemble the panel in the cabin to gain access to the upper mount.
What to do if after replacement the steering wheel becomes stiff?
Probable reasons: incorrect assembly (the shaft is skewed) lack of lubrication on splines or steering rack damage during dismantling. Check the alignment of the shaft and rack, as well as the integrity of the boots.