Steering rack in Nissan Navara - a critical component on which not only driving comfort, but also safety on the road depends. Pickup truck owners D40 And NP300 often encounter problems with this mechanism after 100–150 thousand kilometers, especially when used in difficult conditions (off-road, overload, aggressive driving). Unlike passenger cars, where the rack lasts longer, on Navara it experiences increased loads due to the weight of the car and the suspension features.
In this article we will look at how to recognize a malfunction in time, what symptoms indicate wear and tear (knocks, play, fluid leaks), and what to do - repair or replace the unit completely. Let us separately focus on the selection of spare parts: original slats from Nissan, analogues from Maval or TRW, as well as budget options from AliExpress. For those who are planning a replacement on their own, we provide step-by-step instructions with nuances for Navara D40 (2.5 dCi) and NP300 (2.3 dCi).
Signs of a faulty steering rack Nissan Navara
The first signs of problems with the rack are often ignored until the situation becomes critical. Main feature — knocking sound in the front suspension when driving over bumps or turning the steering wheel, which many people confuse with wear on struts or ball joints. However, the steering rack has specific symptoms:
- 🔧 Steering play (more than 5° when rocking left and right in place) - indicates wear of the worm pair or bushings.
- 💧 Power steering fluid leaks on the rack boots or under the car (red or brown liquid).
- 🔄 Stiff steering wheel rotation in one direction (more often when turning left) - a sign of jamming of the spool mechanism.
- 🚗 Vibration on the steering wheel when driving on a flat road, this may indicate deformation of the rack shaft.
On Navara NP300 (since 2014) a common problem with electric power steering (EPS), where the rack is integrated with the motor. Here in addition to the listed symptoms error C1609 or C1611 on the dashboard, indicating a malfunction of the torque sensor.
⚠️ Attention: If you hear a grinding or crunching sound when turning the steering wheel, stop using it immediately! This is a sign of destruction of the rack teeth - further movement can lead to jamming.
- Knock when turning
- Steering play
- Power steering fluid leaks
- Tight rotation
- Other
Diagnostics: how to check the steering rack for Navara D40/NP300
Before going to the service center, you can conduct preliminary diagnostics yourself. To do this, you will need an assistant and an inspection hole (or a lift). Verification algorithm:
- Visual inspection: Inspect the rack boots for cracks or traces of liquid. Damaged corrugations cause dirt to get inside the mechanism.
- Backlash check: Ask an assistant to swing the steering wheel left and right (the engine is off), and put your hand on the rack. If you feel a gap, the bushings or gear are worn out.
- Leak test: Start the engine and turn the steering wheel all the way in both directions. If drops of liquid appear under the rack, the oil seals or seals are faulty.
- Checking power steering pressure: When the engine is running, the steering wheel should turn smoothly, without jerking. If “dips” are felt, the problem is in the pump or rack spool.
For Navara NP300 with EPS you will need a scanner (for example, Launch X431) to read errors from the amplifier control unit. Frequent codes:
C1609— malfunction of the torque sensor;C1611— open circuit of the motor;U1000- loss of connection with the unit EPS.
How to check a rack without a hole?
Jack up the front wheel and rock it horizontally. If you hear a knock, the problem is in the rack or steering rods.
Repair or replacement: what to choose for Nissan Navara?
Owners Navara often face a dilemma: repair the rack or buy a new one. Repairs are cheaper (from 8,000 to 15,000 rubles), but it makes sense only when bushings, oil seals or anthers are worn out. If the worm pair or shaft is damaged - the repair will be a temporary measure, and after 20–30 thousand km the problem will return.
Pros and cons of each option:
| Criterion | Rail repair | Replacement with a new one |
|---|---|---|
| Cost | 8 000–15 000 ₽ | 30,000–60,000 ₽ (original) |
| Service life | 20,000–50,000 km | 100,000–150,000 km |
| Warranty | 1–3 months | 1–2 years (at official dealers) |
| Suitable for | Wear of bushings, oil seals, anthers | Breakage of the shaft, worm pair, housing corrosion |
On Navara D40 (2005–2014) often install slats from Maval (article MAV-1002) or TRW (JTE1040). For NP300 the original will do 40510-4M000 or equivalent from Febi (30320). When purchasing, check availability ISO/TS 16949 certificate is a guarantee of the quality of metal and processing.
⚠️ Attention: On Navara with diesel engines (YD25DDTi, ZD30DDTi) the rack experiences increased loads due to motor vibrations. It’s better not to save money here and use the original or TRW.
Step-by-step instructions for replacing the steering rack with Nissan Navara D40
Replacing the rack with Navara requires care and special tools (for example, a steering rod puller). Opening hours: 3–4 hours for an experienced master, 5–6 hours for a beginner. Before you start, prepare:
- 🔧 Set of sockets and keys (10–19 mm);
- 🔨 Steering rod puller;
- 🛢 Power steering fluid (Nissan PSF or Febi 06162);
- 🧴 Sealant for threaded connections (Loctite 577).
Replacement algorithm:
☑️ Preparing to replace the slats
- Removing the old rail:
- Unscrew the bolts securing the rack to the subframe (2 pcs., 14mm wrench).
- Disconnect the tie rods using a puller (do not hit with a hammer - there is a risk of damaging the anthers!).
- Unscrew the steering column propeller shaft nut (key 13) and remove the rack.
- Installing a new rack:
- Transfer the tie rods from the old rack to the new one (if they are in good condition).
- Place the rack in place, tighten the fastening bolts to a torque of 50–60 Nm.
- Connect the driveshaft by aligning the marks.
- Refilling the power steering system:
- Fill in new fluid, bleed the system (turn the steering wheel all the way 5-6 times).
- Check that there is no air in the system (the steering wheel should rotate smoothly, without bubbles in the tank).
After replacement, be sure to perform wheel alignment — even if the rods were not removed, the suspension geometry could change.
Before installing a new rack, lubricate the driveshaft splines molybdenum grease - this will prevent squeaking when turning.
Steering rack maintenance: how to extend its service life
Average rack resource per Nissan Navara - 150–200 thousand km, but with proper maintenance this figure can be increased to 250–300 thousand km. Key rules:
- 🔄 Change power steering fluid every 60 thousand km (or once every 2 years). Use only Nissan PSF or analogues with approval
ATF Matic-S. - 🚿 Wash the pendant after off-roading, dirt and salt destroy the anthers.
- 🛑 Avoid long drives with the wheels turned out (for example, when parking on a curb) - this increases the load on the rack.
- 🔧 Check the rack fastening every 20 thousand km - loose bolts lead to vibrations.
On Navara NP300 with EPS Additionally, monitor the condition of the battery - low voltage (less than 12 V) can cause amplifier errors. When errors C1609 First check the battery charge, and only then diagnose the rack.
Regularly replacing power steering fluid is the easiest way to avoid rack repairs. The cost of the procedure (1,500–2,000 rubles) is 10 times cheaper than replacing the node.
Common repair mistakes and how to avoid them
Many owners Navara experience repeated rack failures due to installation or maintenance errors. Let's look at typical mistakes:
- Using non-original power steering fluid.
Cheap analogues (for example, Dexron II) corrode the seals and cause leaks. Only Nissan PSF or Febi 06162!
- Incorrect bleeding of the system.
If there is air left in the system, the steering wheel will “jerk” when turning. Pump until no more bubbles appear in the reservoir.
- Saving on anthers.
Many people install cheap corrugations that crack after 10 thousand km. Original anthers (
40535-4M000) last 3–4 times longer. - Ignoring wheel alignment.
Even if the rods were not removed, after replacing the rack the wheel alignment angles change. Failure to comply with this rule will result in uneven tire wear.
On Navara NP300 with EPS A common mistake is resetting the amplifier after disconnecting the battery. To avoid problems, use a scanner to torque sensor calibration (the procedure takes 5–10 minutes).
FAQ: Answers to frequently asked questions about the steering rack Nissan Navara
Is it possible to drive with a knocking rack?
Short term - yes, but risky. A knocking sound indicates wear on the bushings or play in the shaft, which can lead to jamming. If the rack knocks when turning, check the power steering fluid level and the condition of the boots. If the problem persists, repair or replacement is required.
How much does it cost to replace a rack? Navara D40 in the service?
The cost depends on the region and type of slats:
- Original lath + work: 45,000–60,000 ₽;
- Analogue (TRW, Maval) + work: 30,000–40,000 ₽;
- Rail repair: 8,000–15,000 ₽.
In Moscow and St. Petersburg, prices are 10–15% higher than in the regions.
Which rack is best for Navara NP300 - original or analogue?
For NP300 with EPS It's better to put the original (40510-4M000), since analogues (Febi, Meyle) often have problems with torque sensors. If your budget is limited, choose TRW JTE1040 — it is close in quality to the original, but 20–30% cheaper.
How often should the power steering fluid be changed?
Official regulations Nissan - once every 100 thousand km, but for Navara (especially with a diesel engine) it is better to reduce the interval to 60 thousand km. When used in difficult conditions (off-road, heat) - every 40 thousand km. Use only Nissan PSF or Febi 06162.
Is it possible to repair the rack with EPS?
Theoretically yes, but in practice it is impractical. In racks with electric amplifier (NP300) most often the motor or torque sensor, which are not supplied separately, fails. Repairs will cost 70–80% of the cost of a new rack, and a guarantee will be given for a maximum of 3 months.