
Common transmission failures in the Murano: 1. Vehicle unable to move: Whether in R or D gear, the car cannot move, likely due to automatic transmission oil leakage. In this case, check under the car for any red fluid leakage, which indicates transmission oil leakage. If the sealing ring is aged, simply replace it. If the joint surface of the transmission case is damaged, welding repair is required. 2. Abnormal gear shifting: If the RPM before shifting is noticeably higher than usual (in ECO or Normal mode), or if shifting is impossible, it might be due to improper throttle cable or throttle position sensor, or a faulty vehicle speed sensor. Investigate the cause of the abnormality; if it's due to an improperly positioned sensor, readjust it. 3. Engine idling: Generally, engine idling can be divided into two scenarios. One is when the transmission suddenly shifts from a high gear to a low gear, likely due to abnormalities in the control or cooling system. The other scenario is a brief slipping or idling phenomenon (during acceleration or gear shifting), which is probably caused by the transmission itself. Professional handling is required.

When there are issues with the Murano's transmission, the symptoms are quite noticeable. I've driven several older Murano models, and the most common problem I've encountered is severe gear-shifting jerks, especially during acceleration when the car feels like it's lurching forward. Once on the highway, the tachometer was jumping erratically but the speed wouldn't increase—inspection revealed stuck valve bodies causing unstable oil pressure and failed gear shifts. Some owners also complain about a clicking noise at low speeds, which indicates a faulty transmission control unit (TCU) that needs complete replacement. More troublesome is the delayed gear engagement during cold starts, which normalizes after the car warms up—this is usually due to clogged oil passages or an aging oil pump. A friend's car once had transmission oil leaking, dripping down from the undercarriage, and the culprit turned out to be deteriorated seals. The most frustrating part is the repair costs, which can easily exceed tens of thousands, especially if the CVT chain slips, often requiring a major overhaul.

I often help fellow car owners diagnose transmission issues. The Murano's problems mainly concentrate in a few areas. The scariest sound is metal grinding - 80% chance it's a failed torque converter bearing. Rough shifting is 90% likely solenoid issues, a common flaw. Delayed engagement or neutral revving usually means overdue transmission fluid changes, with sludge clogging the valve body. Once encountered sluggish acceleration with P0776 trouble code - failed pressure control solenoid. Early models also tend to leak, mainly from aged oil pan gaskets. Recommend fluid changes every 50,000 km - never exceed 100,000 km as degraded fluid accelerates wear. If problems occur, don't panic - valve body cleaning solves 30% of issues before considering major repairs.

The second-hand Murano is most afraid of hidden transmission issues. When inspecting the car, focus on listening for sounds. If it takes more than 3 seconds to engage D gear during a cold start, it indicates insufficient oil pressure. At low speeds of 20-40 km/h, lightly press the accelerator—if the RPM suddenly surges and then drops, the CVT belt is definitely slipping. During the test drive, specifically choose uphill sections; if acceleration is weak and jerky, the valve body is basically ruined. Check the records and pay attention to the oil change intervals—transmissions that haven't had an oil change beyond 80,000 km have their lifespan halved. Lift the chassis to check for oil stains; if the oil pan is wet, it's definitely leaking. These issues severely depreciate the car's value—a repaired car is typically $20,000 below market price.

My Murano has run 120,000 kilometers in eight years, and the transmission is quite durable but requires frequent . The original NS-3 fluid must be changed every 60,000 kilometers, as aftermarket fluids can easily damage the valve body. In summer traffic jams, switch to manual mode to avoid overheating from frequent gear shifts. The most dreaded issue is sudden failure to upshift—once the dashboard warning light came on, but restarting fixed it, which turned out to be a poor connection in the control module. If you notice jerking, check the fluid level first; if the dipstick shows black residue, it's time for a fluid change. Don’t skimp on repairs—rebuilding a CVT starts at 5,000 RMB, but aftermarket parts don’t last. Remember to respond to manufacturer recalls; pre-2016 models had a transmission software flaw eligible for free upgrades.

The Murano transmission comes in two models, JF011E and RE0F10D, each with different failure modes. The JF011E often experiences solenoid valve sticking causing shift shock, and main pressure regulator valve wear leading to slippage. The RE0F10D has a design flaw in its steel belt, with pulley wear and noise being common in high-mileage vehicles. Mechanical failures account for 60% of issues, such as torque converter lock-up clutch burn causing vibrations. Electrical control failures make up 30%, with TCU circuit board short circuits leading to shift logic confusion. The remaining issues are related to oil circuits, where clogged filters cause insufficient oil pressure. These failures have chain reactions; for example, pressure leaks can cause belt slippage, which in turn accelerates wear, creating a vicious cycle.


