Front control arms <em>Nissan Murano Z51</em>: how to choose, replace and avoid mistakes

Nissan Murano Z51 - crossover with independent front suspension MacPherson, where the front control arms play a key role in handling and comfort. These parts experience enormous loads: from impacts on bumps to constant dynamic stresses when cornering. That is why their wear and tear is one of the most common problems among owners. Murano with mileage over 100,000 km.

In this article we will look at everything you need to know about front control arms. Z51: from signs of malfunction (knocking, pulling to the side, uneven tire wear) until step-by-step replacement taking into account typical mistakes. We will pay special attention to the selection of spare parts - we will compare original art. 54501-JK00A (left) and 54500-JK00A (right) with popular analogues from Moog, Febi And TRW. We will also reveal unique nuance Murano Z51: why when replacing levers, camber adjustment is often required, even if the body geometry is not broken.

Front control arm design Nissan Murano Z51: what's inside and how it works

Front control arms Murano Z51 (2008–2014) is triangular high-strength steel parts connecting the subframe to the steering knuckle. There are three key elements in their design:

• 🔧 Ball joint - ensures wheel rotation. B Z51 integrated into the lever (non-separable design).
• 🔩 Silent blocks — rubber-metal bushings that dampen vibrations. There are two of them in the lever: front and rear.
• 📏 Attachment points — three bolts to the subframe and one (or two, depending on the year) to the steering knuckle.

Feature Murano Z51 — asymmetrical design left and right levers (they are not interchangeable!). The left part has art. 54501-JK00A, right - 54500-JK00A. Also, depending on the year of manufacture (before/after 2011), the mounting of the silent blocks and the shape of the lever at the ball joint may differ.

It is important to understand that leverage Z51 work in tandem with anti-roll bar And racks. The wear of one element accelerates the destruction of others. For example, broken silent blocks of levers lead to increased load on shock absorbers And support bearings.

Signs of lever wear: when is it time to change

Average life of front levers Murano Z51 — 120,000–150,000 km, but when driving on bad roads or an aggressive driving style, it is reduced to 80,000 km. The following symptoms indicate the need for replacement:

• 🔊 Knocking or clicking noises when driving over uneven surfaces (most often a worn ball joint).
• 🚗 Car withdrawal to the side when moving in a straight line (problem with silent blocks or lever geometry).
• 🔄 Uneven tire wear (especially the inner edge) is a sign of broken camber.
• 🛑 Vibrations on the steering wheel when braking or accelerating (may indicate play in the ball).

A visual inspection and a simple test are sufficient for diagnosis:

1. Raise the car on a lift or jack (be sure to secure it!).
2. Grasp the wheel at the 9 and 3 o'clock positions and rock it perpendicular axis of rotation. Play of more than 1–2 mm is a sign of ball wear.
3. Inspect the silent blocks: cracks, peeling of rubber or oil stains are a signal for replacement.

⚠️ Attention: On Murano Z51 with mileage of more than 150,000 km they often break down arm mounting bolts to the subframe. Stuck bolts may break when unscrewed, requiring drilling and tapping new threads. Always machine threads WD-40 12–24 hours before replacement!

Selection of spare parts: original vs analogues

Original levers for Nissan Murano Z51 are produced by the company Nissan (art. 54501-JK00A And 54500-JK00A) and cost from 8,000 to 12,000 rubles per piece. Their advantages are guaranteed quality and precise geometry, but many owners prefer analogues because of the price.

Proven alternatives include:

Brand	Article (left/right)	Price, rub.	Features
Moog	RK620503 / RK620504	5 500–6 500	Reinforced ball joints, silent blocks with polyurethane
Febi	36920 / 36921	4 800–5 300	Good price/quality ratio, soft silent blocks
TRW	JTC1341 / JTC1342	6 000–7 000	OE quality, often delivered to the assembly line
Sasic	2005001 / 2005002	3 500–4 000	Budget option, resource ~80,000 km

When choosing analogues, pay attention to:

• 🔹 Silent block material: polyurethane (Moog) are more durable than rubber ones, but tougher.
• 🔹 Availability of lubrication in the ball joint: cheap levers often lack it.
• 🔹 Geometry of fastenings: some analogues (for example, Sasic) may require modification of the holes.

Step-by-step replacement of front levers: instructions with nuances

Replacing levers with Nissan Murano Z51 requires ball joint remover, torque wrench and socket set. Working time: 3–4 hours per side. Here's the algorithm:

Disconnect the battery (to prevent the airbags from deploying)

Raise the car on a lift or jack with emphasis on the subframe

Remove the wheel and engine protection (if it interferes)

Process the fastening bolts WD-40 or Liqui Moly Rostloser

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1. Unscrew the ball joint nut (size 19 mm). Don't remove it completely - just loosen it.
2. Disconnect the lever from the steering knuckle using a puller. Don't hit with a hammer! - this will damage the ball boot.
3. Unscrew the three bolts securing the arm to the subframe (size 14 mm). On models after 2011, the rear bolt may have an eccentric - remember its position to maintain camber!
4. Remove the lever and clean the seats from dirt. Check the condition of the subframe - cracks or corrosion require repair.
5. Install a new lever, starting with attachment to the subframe. Tighten the bolts in the following order: front → rear → middle.
6. Tighten the ball joint nut moment 80–100 Nm.

After replacement necessarily check and adjust if necessary wheel alignment. On Murano Z51 even a slight shift of the lever (1–2 mm) can lead to the car slipping.

⚠️ Attention: On vehicles with the system 4WD After replacing the levers, an error may light up C1105 (steering angle sensor malfunction). This is due to changes in suspension geometry. Reset the error using a scanner or by disconnecting the battery for 10 minutes.

What to do if the lever bolt breaks?

If the bolt securing the lever to the subframe breaks, do not try to drill it yourself - there is a risk of damaging the threads in the subframe. Best option:

1. Heat the broken area with a gas burner (the rubber of the silent block will burn out, loosening the clutch).

2. Use an extractor or left-hand thread to remove it carefully.

3. If the thread is damaged, cut a new one using a tap M12×1.25 (original thread pitch).

Camber adjustment after replacement: why is it critical for Murano Z51

Feature Nissan Murano Z51 — sensitivity to changes in suspension geometry. Even replacing one lever can shift the camber by 0.3–0.5°, which will lead to:

• 🚘 Fast (for 5,000–10,000 km) wear on the inner edge of the tire.
• 🔄 Pulling the car to the side (especially noticeable at speeds above 80 km/h).
• 💺 Deterioration in steering responsiveness.

On Murano Z51 camber is adjustable eccentric bolts on the attachment of the lever to the subframe. The procedure takes 20–30 minutes per side, but requires:

1. A special key for eccentrics (or heads 17 mm with extension cord).
2. A laser stand or digital protractor (a tape measure and thread will not give accuracy!).
3. Knowledge of factory parameters: for Z51 camber should be within -0.5° ± 0.3°.

If, after replacing the levers, you notice that the car is “pulling” to the left/right, and the steering wheel is uneven - do not delay adjustment. On Murano with the system ESP Incorrect camber can cause false activation of the stabilization system.

Typical replacement mistakes and how to avoid them

Even experienced craftsmen make mistakes when working with front levers Murano Z51. Here are the most common:

1. Ignoring the condition of subframe silent blocks. If they are worn out, new levers will last 2 times less.
2. Incorrect bolt tightening. Over-tightening the silent blocks leads to their rapid destruction, and under-tightening leads to play.
3. Lack of lubrication in the ball joint. Cheap levers often lack it - add Litol-24 before installation.
4. They forget about the retaining rings on the ball nut (art. 08903-14010). Without them, the nut may come loose.

Another common problem is mixed up left and right levers. On Z51 they are visually similar, but have a different form of attachment to the subframe. Before installation, check the markings:

• 🔹 Letters are stamped on the original levers L (left) and R (right).
• 🔹 On analogues (Moog, TRW) the markings are painted on the inside.

Cost of service work vs independent replacement

Cost of replacing front control arms Nissan Murano Z51 in services in Moscow and regions:

Type of work	Cost, rub. (for 1 side)	Time
Replacing the lever (without camber adjustment)	2 500–3 500	1.5–2 hours
Lever replacement + camber adjustment	4 000–5 500	2.5–3 hours
Replacing the lever + subframe silent blocks	6 000–8 000	4–5 hours

When replacing it yourself, the main costs are spare parts and tools. You will need:

• 🔧 Ball joint remover (~1,500 RUR).
• 🔩 Torque wrench (~2,000 rub.).
• 🔧 Set of heads with extensions (~3,000 rub.).

Total DIY replacement will cost 3–4 times less, but only if you have experience with suspension. On Murano Z51 it is critical to observe the tightening torques and the order of operations - an error can lead to breakage of the lever while driving.

FAQ: Frequently asked questions about front control arms Nissan Murano Z51

Is it possible to drive with a knocking lever?

For a short time (up to 500–1,000 km) - yes, but only if the knocking comes from the silent blocks and not from the ball joint. A worn ball may break out while driving, which will lead to loss of control. Check the play: if it exceeds 3 mm, change the lever immediately!

Do I need to change the levers in pairs?

Not required, but recommended if the vehicle's mileage exceeds 150,000 km. Different resources of the left and right levers can lead to uneven controllability. If you are replacing only one, check the alignment on both wheels after installation.

Which levers are better: original or Moog?

Original levers Nissan softer in terms of comfort, but Moog with polyurethane silent blocks it is more durable (resource up to 200,000 km). The choice depends on priorities: if you drive mostly around the city - the original, if off-road or with a trailer - Moog or TRW.

What happens if you don’t adjust the camber after replacement?

On Murano Z51 improper camber leads to:

• 🔥 Fast (for 5,000–10,000 km) tire wear.
• 🚗 Pulling the car to the side (especially at high speeds).
• 💥 Increased load on wheel bearings and shock absorbers.

Adjustment costs ~1,500 rubles, and new tires cost from 20,000 rubles. per set. Save on the breakdown - pay twice as much later.

Is it possible to restore the levers (replace the ball or silent blocks)?

Theoretically yes, but in practice it is unprofitable. The cost of the original ball joint (art. 40520-JK000) - ~4,000 rubles, and silent blocks (art. 54525-JK000) — ~2,500 rub. per set. Add more work (~3,000 rubles) and it will cost more than a new lever. The exception is rare cases when the lever is damaged mechanically (for example, in an accident).