
Surui uses a 5-speed manual transmission, and this model does not offer an automatic transmission variant. The Surui measures 4680 mm in length, 1765 mm in width, and 1490 mm in height, with a wheelbase of 2660 mm, providing relatively spacious interior room. The Surui is a compact sedan under BYD's lineup, equipped with a 1.5-liter naturally aspirated engine across all variants. This engine delivers 109 horsepower and a maximum torque of 145 Nm, achieving peak power at 5800 rpm and maximum torque at 4800 rpm.

I've been running an auto repair shop for many years and have seen plenty of Surui models. This car comes with two transmission options: manual and automatic. The automatic version uses BYD's self-developed 6-speed dry dual-clutch transmission, model number 6DT25. The dry dual-clutch design is simpler and lighter, with genuinely fast gear shifts, but it tends to overheat in city traffic with frequent starts, and the clutch plates wear out faster than wet-type clutches. The manual version is much more durable—the 5-speed manual transmission is practically indestructible and cheaper to maintain. I recommend owners pay attention to common dual-clutch issues; if there's noticeable jerking at low speeds, get it checked promptly. Avoid riding the brake pedal with partial clutch engagement in daily driving, and shift to neutral at red lights. Also, don't forget to change the transmission fluid every 60,000 km, or as early as 40,000 km in high-temperature southern regions.

After studying the transmission system data of the Surui, its gearbox choices are quite interesting: the manual version adopts a 5MT structure with gear ratios designed for fuel efficiency, while the automatic version features a 6-speed dual-clutch transmission (DCT). This model, codenamed 6DT25, uses an electric motor to control the shifting mechanism, offering faster response than hydraulic systems. My actual tests showed a shift speed of around 0.2 seconds when downshifting from third to second gear, much crisper than AT transmissions in the same price range. However, the DCT does exhibit slight jerks during low-speed crawling, especially noticeable when the engine is cold. For , it's recommended to inspect the transmission control module every two years, as this component is prone to moisture damage. If you frequently drive on mountainous roads, switching to manual mode to lock in a specific gear is advised to prevent overheating caused by frequent gear shifts.

My Surui is the 2015 automatic luxury model, and the transmission hasn't had any major issues in eight years. I remember the dealership said it was a 6-speed dual-clutch, and you can definitely feel the jerk when shifting from second to first gear in traffic, like someone lightly kicked you in the rear. But it's super fuel-efficient on the highway—cruising at 120 km/h, the RPM is only 2200. Last year, I spent 650 yuan on transmission fluid, and the mechanic said dual-clutch transmissions require special fluid—regular ATF can damage the clutch plates. My friend’s manual version is even more fuel-efficient, but driving it in the city is torture on the left foot. Once, I borrowed his car and forgot to press the clutch, stalling three times in a row when starting. The newer models seem to have switched to CVT? My old dual-clutch has its quirks, but the acceleration is seriously quick—I often leave cars next to me half a car length behind at traffic lights.

From a technical perspective, the Surui's transmission options are clearly defined: the entire lineup offers a 5MT manual transmission and a 6DCT automatic transmission. Let's focus on the dual-clutch version, which features a parallel-axis design with two independently operating clutches, delivering a 40% faster shift speed compared to traditional AT transmissions. During my test drive, I specifically evaluated the transmission logic: it upshifts proactively during steady cruising, engaging 6th gear at just 60 km/h; when flooring the accelerator, it can downshift three gears in just 0.8 seconds. It's worth noting that the dry dual-clutch relies on airflow for cooling, and prolonged low-speed driving may lead to excessive clutch temperatures. Owners are advised to switch to manual mode when using the hill descent control function to avoid frequent gear shifts. Regarding maintenance intervals, the transmission fluid should be replaced every 4 years or 80,000 kilometers, whichever comes first.

Last month I test drove a used Surui and paid special attention to the transmission performance. The manual version has a relatively long clutch travel, but the gear shifts are precise with a satisfying engagement feel, making it suitable for driving enthusiasts. The automatic dual-clutch transmission becomes particularly aggressive in Sport mode, shifting only at 4000 rpm, delivering stronger acceleration than expected. However, the test driver frankly admitted that this dry dual-clutch system has higher costs, while manual transmission models actually hold their value better in the used car market. From maintenance records I've checked, a common issue is noise during low-speed gear changes, which can usually be resolved by replacing the clutch plates. I recommend focusing on repeated acceleration and deceleration tests between 20-30 km/h when purchasing - if you notice jerking accompanied by clicking sounds, be cautious. If you don't frequently encounter traffic congestion, the dual-clutch's fuel efficiency advantage is quite noticeable, with the display showing only 6.9L/100km.


