Trapezoid wipers <em>Nissan Murano Z51</em>: a complete guide to selection and replacement

The windshield wiper trapezium is one of those components that drivers Nissan Murano Z51 They remember only when it breaks down. And this usually happens at the most inopportune moment: during a rainstorm, snowfall, or when the blades begin to “walk” across the windshield, leaving streaks and uncleaned areas. Unlike brushes or a motor, a trapezoid (aka wiper drive mechanism) is a complex system of levers and hinges that wears out over time, rusts, or breaks due to corrosion.

In this article we will look at everything the owner needs to know. Murano Z51 (2015–2021) about the windshield wiper trapezium: how it works, what signs indicate a malfunction, how to choose the right spare part according to the article numbers, and whether you can handle the replacement yourself. We will pay special attention typical installation errors that lead to repeated failure of the mechanism after 1–2 seasons. If you are faced with the problem of “walking” wipers or their complete stop, here you will find clear instructions and advice from the experts.

Design and principle of operation of trapezium wipers Nissan Murano Z51

Trapezoid wipers in Murano Z51 is a mechanical system that converts the rotational movement of the motor into the reciprocating movement of the brushes. It consists of:

• 🔧 Electric motor (wiper motor) - sets the entire mechanism in motion.
• ⚙️ Gearbox - reduces speed and increases torque.
• 🔗 Lever and rod systems — transmits movement to the brush leads.
• 🛠️ Fastenings and hinges — provide reliable connection and smooth operation.

B Murano Z51 a trapezoid is used with two brush attachment points (left and right), which is typical for most crossovers with a large windshield. A special feature of this model is the reinforced design of the levers, since the brushes have an increased length (up to 650 mm for the driver’s side). The mechanism is hidden under a plastic protection under the hood, which complicates access for inspection, but protects it from dirt and moisture.

When the wipers are turned on, the motor rotates the main shaft through a gearbox, which is connected to a system of levers. The rods transmit movement to the leashes, and the brushes begin to move synchronously. If at least one element of the trapezoid is worn out (for example, play in the hinge or a bent rod), the synchronization is disrupted - the brushes “walk” or stop in the wrong position.

Signs of a faulty trapezoid: when is it time to change

Unlike a motor, which often “signals” problems with a squeak or complete failure, the trapezoid fails gradually. Here are the key symptoms that should not be ignored:

⚠️ Attention: If the wipers Murano Z51 stop in a vertical position (perpendicular to the hood) and do not return to the bottom - this is a sure sign of a broken trapezoid or a broken linkage. Do not try to force them back to their original position: this may damage the motor!

• 🌀 Uneven brush movement - one brush “lags behind” the other or moves in an arc rather than in a straight line.
• 🔊 Extraneous sounds - grinding, knocking or crunching noise when working, especially in cold weather or after rain.
• 🛑 Spontaneous stop — the wipers stop in an arbitrary position and do not react when turned on.
• 💧 Incomplete glass cleaning — the brushes do not reach the edges or leave “islands” of dirt.
• 🔄 Failure to return to parking position — after turning off the wipers remain in the middle of the glass.

On Murano Z51 Most often they break:

1. Plastic bushings for hinges — they dry out over time and stop fixing the levers.
2. Metal rods — bend under heavy load (for example, if the brushes are frozen to the glass).
3. Gearbox - gears wear out, which leads to slippage.

If you notice at least one of these signs, do not delay diagnosis. In 80% of cases, the trapezoid can be saved at an early stage (for example, by replacing the bushings or straightening the rod), but if the mechanism is completely loose, the entire assembly will need to be replaced.

Articles and analogues: how to choose a trapezoid for Murano Z51

Original trapezoid wipers for Nissan Murano Z51 (2015–2021) has an article no. 28550-4M000 (for left-hand drive models) or 28550-4M001 (for right-hand versions). However, the original is from Nissan is expensive (from 12,000 to 18,000 rubles), so many owners choose analogues from trusted manufacturers.

Manufacturer	Article	Price, ₽	Features
Nissan (original)	28550-4M000	12 000–18 000	12 month warranty, fully compatible
Denso	85321-4M000	8 500–11 000	High quality plastic, reinforced hinges
Febi Bilstein	28550	7 200–9 500	Good price/quality balance, suitable for harsh climates
Meyle	285 500 0000	6 800–8 900	Budget option, but shorter lifespan of plastic parts
Sasic	2855004M00	5 500–7 000	Economy segment, suitable for temporary replacement

When choosing an analogue, pay attention to:

• 🔹 Hinge material - metal bushings are preferred instead of plastic ones.
• 🔹 Availability of lubrication — high-quality trapezoids are supplied with factory lubricant (for example, Denso or Febi).
• 🔹 Country of manufacture — European or Japanese analogues are more reliable than Chinese ones.

If you buy a used trapeze (for example, from a disassembly site), be sure to check:

1. There should be play in the hinges - shake the mechanism, there should be no play.
2. Integrity of rods - Bent or rusty rods cannot be repaired.
3. Motor operation - if the seller allows it, connect the trapezoid to 12V and check for smooth operation.

Step-by-step instructions for replacing the windshield wiper trapezoid

Replacing the trapezoid with Nissan Murano Z51 - a task of medium complexity. If you have the tools and minimal experience in car repair, you can handle it in 1.5–2 hours. Here's what you'll need:

10mm and 12mm socket wrenches|Flat head and Phillips head screwdriver|Pliers|Hinge lubricant (e.g. LIQUI MOLY LM47)|New windshield wiper bar|rags and cleaner (e.g. WD-40)-->

Step 1. Preparing and removing the wipers

Open the hood and remove the plastic protection under the windshield (it is secured with 4-6 clips). Disconnect the wiper motor power connector. Then remove the brushes: pry up the plastic caps on the leads with a screwdriver and unscrew the nuts with a 12 mm wrench.

Step 2. Dismantling the old trapezoid

Unscrew the bolts securing the trapezoid to the body (usually 3-4 bolts per 10 mm). Carefully remove the mechanism, being careful not to bend the rods. If the trapezoid is stuck, treat the fastenings WD-40 and wait 10–15 minutes.

Step 3. Installing a new trapezoid

Before installing a new trapeze, apply lubricant to all joints and check for smooth movement by hand. Place the mechanism in place, secure with bolts (do not tighten them completely until you check the operation!). Connect the motor connector.

Step 4: Setup and Testing

Set the wipers to intermittent operation and check:

• Synchronous movement of brushes.
• No extraneous sounds.
• Returning the brushes to the lower position after switching off.

If everything works correctly, tighten the fastening bolts and install the protection back.

⚠️ Attention: After replacing the trapezoid necessarily calibrate your wipers! To do this, turn on the ignition, press and hold the wiper control lever in the position INT (intermittent mode) for 5–7 seconds. The brushes will automatically return to the parking position.

Typical replacement mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes when replacing a trapezoid with Murano Z51which lead to repeated breakdowns. Here are the most common:

1. Incorrect bolt tightening — if you tighten the fastenings, the trapezoid may become deformed, and if you don’t tighten them enough, there will be play. Optimal tightening torque: 8–10 Nm.
2. Lack of lubrication — new trapezoids are often supplied without lubrication. If you do not apply it to the hinges, the mechanism will quickly begin to creak and wear out.
3. Ignoring calibration — if you do not reset the wiper position after replacement, the blades may stop in the wrong position.
4. Damage to the motor connector — when connecting power, it is important not to reverse the polarity and damage the contacts.

Another common problem is purchasing a trapezoid without taking into account modifications Murano Z51. For example, for versions with adaptive cruise control (ProPILOT) may require a trapezoid with a different camera mount. Always check the VIN with the seller before purchasing!

What should I do if, after replacement, the wipers do not work synchronously?

If the brushes move asynchronously, the reason may be:

1) Incorrect installation of the trapezoid (check the fastenings).

2) Worn brush leads (replace them).

3) Motor malfunction (check it separately by connecting it to 12V).

4) No calibration (reset as described above).

If the problem remains, the new trapezoid may be defective (contact the seller).

Prevention: how to extend the life of the windshield wiper trapezoid

Service life of trapezoid Murano Z51 depends not only on the quality of the part, but also on the operating conditions. Here are some tips to help avoid premature wear:

• 🌡️ Winter preparation — before frosts, treat the trapezoid hinges with silicone grease and check the condition of the rubber seals.
• 🚿 Wash under the hood — regularly clean the space under the plastic protection from dirt and leaves that may get into the mechanism.
• ❄️ Do not turn on the wipers on frozen glass — if the brushes are frozen, first warm the glass with heating or a special liquid.
• 🔧 Check the play — once every six months, pull the wiper arms manually: if there is play, it’s time to replace the bushings or the entire trapezoid.

If you frequently drive off-road or in high humidity conditions, it is recommended to remove the plastic protection once a year and inspect the trapeze for corrosion. At the first sign of rust, treat the metal parts with a rust converter (e.g. Hi-Gear HG5717).

💡

Regular lubrication of trapezoid hinges (every 6–12 months) increases its service life by 30–40%. Use specialized lubricants for moving mechanisms, for example, LIQUI MOLY LM47 or Molykote G-Rapid Plus.

Cost of service work vs independent replacement

If you are not confident in your abilities, replacing the trapezoid wipers with Murano Z51 can be trusted to professionals. Here are the estimated prices in services in Moscow and the regions (for 2026):

Type of work	Cost, ₽ (Moscow)	Cost, ₽ (regions)
Diagnosis of trapezium	500–800	300–500
Replacement trapezoid (without part cost)	2 500–4 000	1 800–2 500
Replacing trapezoid + motor	4 500–6 000	3 000–4 500
Lubrication and adjustment of trapezoid	1 000–1 500	600–1 000

Independent replacement will only cost the cost of the trapezoid (from 5,500 to 18,000 rubles), but will require time and tools. If you have never worked with windshield wiper mechanisms, it is better to contact a service center - installation errors can lead to damage to the windshield or electrical wiring.

You can save on diagnostics: before going to the service center, check yourself:

• Does the motor work (listen to see if it turns on when you press the lever).
• Is there any play in the brush leads?
• Are the trapezoid rods bent (can be seen by removing the plastic protection).

This information will help the technician quickly identify the problem and avoid unnecessary work.

FAQ: Frequently asked questions about trapezoidal wipers Nissan Murano Z51

Is it possible to repair the trapezoid or only replace it?

In most cases, the trapezoid can be repaired if the problem is worn bushings or bent rods. For example, plastic hinge bushings cost 200–500 rubles and are replaced in 30–40 minutes. However, if the gearbox is damaged or the levers are broken, it is cheaper and more reliable to install a new trapezoid.

How long does the trapezoid last on the Murano Z51?

The service life of the original trapezoid is 100,000–150,000 km or 5–7 years. The service life is affected by operating conditions: in regions with frequent temperature changes and high humidity, the mechanism wears out faster. Analogues from Denso or Febi serve approximately 20–30% less than the original.

Why do the wipers not return to the down position after replacing the trapezoid?

This is a big problem if you don't calibrate. Turn on the ignition, press and hold the wiper lever in position INT for 5–7 seconds. If this does not help, check whether the motor connector is connected correctly or whether there is any play in the new trapezoid.

Is it possible to drive with a faulty trapeze?

Technically possible, but highly undesirable. Non-working wipers are not only a discomfort, but also a safety hazard: in rain or snow, visibility deteriorates significantly. Additionally, if the trapeze sticks, it could damage the motor or wiring, leading to more expensive repairs.

Where can I buy a trapeze for Murano Z51 cheaper?

The lowest prices are usually on spare parts aggregator websites (for example, Exist.ru, Autodoc or Emex). You can also look at the disassembly sites - used trapezoids in good condition cost 3,000–5,000 rubles. But be careful: buy only from trusted sellers with a guarantee.