Nissan Murano wiper repair: 7 causes of breakdowns and how to fix them yourself

Wipers Nissan Murano is a critical safety element that often fails due to harsh weather conditions or normal wear and tear. Unlike European crossovers, trapezoidal wipers in Murano (especially models Z51 2008–2014) has weak points: plastic gears of the gearmotor and corrosion of metal rods. At the same time, official dealers charge from 15,000 rubles for replacing a trapezoid, although 80% of breakdowns can be repaired independently in 1–2 hours.

In this article - step by step instructions for diagnostics and repair with photos, unique techniques for restoring plastic gears without replacement, as well as a table of compatibility of spare parts for different generations Murano (including restyled versions). The material is based on the experience of owners with 100,000+ km mileage and analysis of typical repair errors.

1. Signs of faulty wipers: when diagnostics are needed

The first signal of problems - uneven brush movement or their complete stop in one position. For example, if the wipers Murano Z52 (2015–2021) freeze in vertical position after switching off, culprit limit switch in the gear motor. Another common complaint is creaking or knock during operation, which indicates wear of the plastic gears or lack of lubrication.

Less obvious symptoms:

• 🔹 The wipers move jerkily, especially at low speeds
• 🔹 Brushes do not return to their original position after turning off
• 🔹 When turned on, a buzzing sound is heard, but the brushes do not move
• 🔹 Streaks remain on the windshield even after replacing the blades

⚠️ Attention: If the wipers Murano suddenly stopped working during the rain, do not try to turn them on again - this may blow the fuse F37 (15A) in the block under the hood. Check the relay first K30 (it is responsible for powering the motor).

2. Diagnostics: how to find the cause of a breakdown in 10 minutes

First check simplest reasons:

1. fuse - in Murano it is located in a block under the hood (see diagram in the manual). Use the multimeter in dial mode.
2. Brushes - even new ones may not fit well due to deformation of the levers. Check the angle of inclination: it should be 90° to the glass.
3. Relay — if you hear a click when you turn on the wipers, but the motor does not work, the problem is in the relay or an open circuit.

If everything is in order with the electrics, move on to the mechanics:

Symptom	Probable Cause	Verification method
The wipers don't move, the motor hums	Worn trapezoid gear or jammed rods	Remove the plastic protection and check the gear play
Brushes move asynchronously	Loose levers or bent rods	Visual inspection for corrosion
Wipers only work at one speed	Switch malfunction or break in wiring harness	Ring the wires from the control knob to the motor

🔧 Useful lifehack: To check the wiper motor without removing the trapezoid, connect it directly to the battery (polarity is not important). If it spins, there is a problem with the wiring or switch.

3. Replacing wiper blades: mistakes that ruin new parts

Brushes on Murano change every 6–12 months, but many owners are faced with the fact that even expensive frameless brushes (Bosch Aerotwin or Denso) begin to creak after a month. Reason - incorrect installation:

• 🚫 The rubber has not been cleaned of factory lubricant (it needs to be washed off with alcohol).
• 🚫 The wiper levers are not adjusted in height (they must be parallel to the glass).
• 🚫 Brushes of the wrong length were used: for Murano Z50 — 600/400 mm, for Z51/Z52 — 650/450 mm.

⚠️ Attention: If the brushes leave streaks after replacing them, check lever angle. On Murano he must be strict 15–20° from the vertical. To adjust, loosen the lever securing nut (10mm wrench) and set the correct angle.

Step-by-step replacement instructions:

1. Raise the wiper lever perpendicular to the glass (to the “service mode” position).
2. Press the latch at the base of the brush and slide it down.
3. Install the new brush until it clicks (for frameless models, use an adapter Nissan 28520-JD00A).
4. Check operation at all speeds, including intermittent.

4. Repair of trapezium wipers: restoration of gears without replacement

The main problem with the trapezoid in Murano is the wear of the plastic gear of the gearmotor (part number 28520-4M000). A new part costs 4,000–6,000 rubles, but it can be restored using epoxy resin and metal shavings. This method works if the teeth are worn no more than 30%.

Required materials:

• 🔧 Epoxy resin (eg. Poxipol)
• 🔧 Metal shavings (can be obtained with a file)
• 🔧 Sandpaper P800 And P1200
• 🔧 Lubricant for plastic gears (Molykote 3400A)

Step by step process:

1. Remove the trapezoid (unscrew the 4 bolts securing it to the body and disconnect the rods).
2. Disassemble the gear motor by removing the gear retaining ring.
3. Clean worn teeth with acetone and apply a thin layer of epoxy resin mixed with metal shavings (2:1 ratio).
4. Allow to dry for 24 hours, then sand until the tooth profile is restored.
5. Lubricate the gear and reassemble the trapezoid in reverse order.

📌 Key Takeaway: This method extends the life of the gear by 1–2 years, but requires care. If the teeth are damaged by more than 50%, it is better to install a new part.

How to remove the trapezoid without damaging the windshield?

1. Disconnect the battery to avoid short circuit. 2. Remove the plastic trim under the windshield (it is secured with 6 clips). 3. Disconnect the rods from the wiper arms, having previously marked their position with a marker. 4. Unscrew the 4 bolts securing the trapezoid (10 wrench) and carefully pull it out through the right side (passenger side).

5. Replacing the wiper motor: selection of spare parts and installation nuances

Wiper gear motor Murano fails due to moisture (especially in models before 2010, where the seals are weaker). Original motor (28520-4M000) costs 8,000–10,000 rubles, but there are high-quality analogues:

• 🔹 Febi Bilstein (article 28520) — 5,500 rubles, resource 100,000 km.
• 🔹 Blue Print (article ADN123010) — 4,800 rub., suitable for Z50/Z51.
• 🔹 Denso (article 550-0104) — 7,200 rub., original quality.

⚠️ Attention: When replacing the motor, be sure to move limit switch from old to new! If this is not done, the wipers will not return to their original position. Also check the integrity o-ring (article 28526-4M000) - its wear leads to repeated failure of the motor.

Replacement instructions:

1. Remove the trapeze (see spoiler above).
2. Unscrew the 3 bolts securing the motor to the trapezoid (size 8 wrench).
3. Disconnect the power connector and move the limit switch.
4. Install the new motor, lubricating the gear Molykote 3400A.
5. Check the operation of the wipers in all modes, including washer.

6. Elimination of corrosion of trapezoid rods: step-by-step algorithm

Trapezius rows Murano made of steel, but do not have an anti-corrosion coating. After 5-7 years of use, they rust, which leads to jamming of the wipers. Solution:

• 🔧 Cleaning rust with a metal brush + rust converter (Tsinkar).
• 🔧 Applying graphite lubricant to hinge joints.
• 🔧 Installation of protective covers made of heat shrink tube.

Step by step process:

1. Remove the trapezoid and disassemble the rods (they are attached to cotter pins).
2. Immerse the parts in the solution Tsinkarya for 30 minutes, then clean with a brush.
3. Lubricate the hinges LIQUI MOLY LM47 (it is not washed off with water).
4. Place a heat-shrinkable tube (diameter 10 mm) onto the rods and heat with a hairdryer.
5. Assemble the trapezoid and check for smooth movement.

📌 Key Takeaway: This procedure takes 1.5–2 hours, but prevents the wipers from sticking for 3–4 years. An alternative is to replace the rods with new ones (article no. 28501-4M000, price 3,000 rub. per set).

7. Prevention: how to extend the life of wipers by 2 times

Wiper lifespan Murano depends not only on the quality of spare parts, but also on care. Here 5 ruleswhich are used by owners with a mileage of 200,000+ km:

• 🚿 Every 3 months, clean the hood seals from dirt (it gets into the trapezoid mechanism).
• ❄️ In winter, before parking, raise the wipers to a vertical position so that they do not freeze.
• 🛢️ Use only winter washer fluid (with a freezing point below -25°C).
• 🔧 Once a year, lubricate the trapezoid hinges with silicone grease (CRC 5-56).
• 🔄 Change brushes in spring and autumn - summer and winter models have different rubber composition.

⚠️ Attention: Never turn on your wipers if there is ice on the glass! This leads to overload of the motor and breakage of the plastic gears. Use a scraper or heated glass (if equipped) to clear the ice.

FAQ: Answers to frequently asked questions

Is it possible to drive if the wipers don't work?

Technically, yes, but this violates the traffic rules (clause 4.1 “It is prohibited to operate the vehicle with faulty windshield wipers”). The fine is 500 rubles, but the main danger is that when it rains, visibility deteriorates 3–5 times, which increases the risk of an accident. A temporary solution is to use a hand washer (if it works).

Why do the Murano Z51 wipers stop in the vertical position?

This is a typical problem Z51 (2008–2014) due to wear and tear limit switch in the gear motor. The reason is a design defect: the plastic switch rod cracks over time. Solution: replace the motor or repair the switch (you can re-solder the contacts).

How much does it cost to replace a windshield wiper blade at a service center?

The cost depends on the region and model:

• Murano Z50 (2003–2007) — 12,000–15,000 rubles. (with spare parts).
• Murano Z51 (2008–2014) — 14,000–18,000 rub.
• Murano Z52 (2015–2021) — 16,000–20,000 rub.

Do-it-yourself repairs are 3–5 times cheaper.

What are the best wiper blades for Murano?

Recommended models based on test results for 2023–2026:

Model	Type	Service life	Price (set)
Bosch Aerotwin AR651S	Frameless	12–18 months	2,200 rub.
Denso WI-24	Hybrid	18–24 months	2,500 rub.
Valeo Ultimate 650/450	Frame	8–12 months	1,800 rub.

For winter use it is better to choose Denso — their rubber does not harden in the cold.

How to remove the wiper arm if the nut is stuck?

The problem is relevant for Murano over 5 years old. Algorithm:

1. Treat the nut with penetrating lubricant (WD-40 or Liqui Moly Rostloser) and wait 15 minutes.
2. Use a 10mm socket wrench with an extension for more leverage.
3. If it doesn’t help, heat the nut with a hair dryer (temperature 200–250°C) and try again.
4. As a last resort, cut the lever with a grinder (a new one costs 1,200–1,500 rubles).