What is the engine model of the Teana?

[HannahMarie]

The Teana is equipped with two engine models: the MR20 and the QR25. Here are the details of the Teana engines: 1. The 2.0L engine is the MR20 direct-injection engine, featuring a dual C-VTC (Continuous Variable Valve Timing Control) intelligent control system. Its offset cylinder technology can alter the angle at which the piston rod pushes the crankshaft, which enhances the engine's power output, improves fuel efficiency, and boosts overall engine performance, resulting in quick acceleration and low fuel consumption. 2. The 2.5L engine is the QR25, which utilizes a micro-nozzle fuel injector with 18 spray holes to create a fine mist effect, further improving fuel efficiency. Additionally, the entire lineup is equipped with the dual C-VTC intelligent control system, which continuously adjusts the opening and closing times of the intake and exhaust valves based on engine speed, ensuring optimal timing for intake and exhaust to maximize power efficiency.

[HaleyAnn]

Just helped a friend pick out a used Teana and specifically checked the engine. Domestic Teana mainly comes with two engine options: the 2.0L MR20, with the stamped number on the right side of the engine, and the 2.5L QR25. The older V6 3.5L model is equipped with the VQ35. After last year's facelift, the 2.0T version uses the KR20 with turbocharging. When inspecting the car, I found that the QR25 in models from 2012-2018 is particularly prone to oil leaks, so pay special attention to the cylinder head gasket. The newer KR20 is more fuel-efficient but requires full synthetic oil for maintenance. These engine codes can be found on the engine compartment nameplate or the vehicle registration document, so remember to verify them when buying used.

[Garcia]

My colleague's newly purchased Teana is the VC-TURBO Super Variable Compression version, model KR20. The cutting-edge technology of this engine lies in its ability to automatically adjust the compression ratio between 8:1 and 14:1. For daily driving, the 2.0L naturally aspirated version is mostly equipped with the MR20DE engine, which is commonly seen in ride-hailing vehicles. Discussions among veteran owners revealed that the QR25 engine's chain rattling during cold starts is a common issue. For accurate identification, it's recommended to check the engine number: QR prefix indicates a 2.5L engine, MR prefix denotes a 2.0L, while the new turbocharged KR20 has a separate identification plate located beneath the gear shift lever.

[HarrisonDella]

After repairing the Teana for so many years, I've encountered three common engine types: The 2.5L QR25 with steel stamp tends to have easily aging engine mounts, the 2.0L MR20 often suffers from carbon buildup in the manifold, and the latest KR20 turbocharged version requires intake tract cleaning every 20,000 km. The 2006 older model used the VQ23DE V6 engine, which is rare now. When examining engines, don't just look at displacement - after the 2016 facelift, the 2.5L QR25 received optimized piston rings, significantly reducing oil consumption issues.

[LilyFitz]

The Teana's engine depends on the model year. The 04-08 imported versions featured a VQ35 3.5L V6 engine with particularly strong torque. The current domestically produced mainstays on the road are the QR25 (displacement marked as 2.5L) and MR20 (marked as 2.0L). Last year, when accompanying a relative to pick up a car, the 4S store mentioned that the new 2.0T is called the KR20DDT, boasting over 300 Nm of torque. Noticed a detail: the hybrid e-POWER version uses a KR15 three-cylinder engine as a generator, but it doesn't count as a traditional engine.

[MacDavid]

Disassembled three generations of Altima engines. The first generation equipped with the VQ35DE features variable valve timing technology, still occasionally seen in the used car market. For the second generation's main QR25DE, pay attention to the timing chain stretching issue; it's best to inspect it by 100,000 km. The current KR20 VC-Turbo has a very complex structure, but fuel consumption is impressively low at 6L. Here's a tip: the QR25 engine may produce a ticking sound during cold starts—this is just the high-pressure fuel pump working, no need to worry. The overseas version also used the 2.5T VR25DD, which wasn't introduced domestically.