Disadvantages of the 2012 CLS300 Engine?

[VonCole]

The disadvantage of the 2012 Mercedes-Benz CLS300 engine is its insufficient power performance. Below are the specific details about the Mercedes-Benz CLS: 1. The Mercedes-Benz CLS-Class is a new coupe series launched by the German Daimler Group. 2. The CLS-Class coupe includes the Electric Stability Program (ESP) as standard equipment. If there is a risk of skidding, the ESP system is immediately activated. 3. Both variants of the CLS Shooting Brake are equipped with a 3.5L naturally aspirated V6 engine, delivering a maximum power of 306 horsepower and a maximum torque of 370 N·m. Paired with a 7G-TRONIC-PLUS 7-speed transmission, the vehicle accelerates from 0-100 km/h in 6.7 seconds, with a top speed limited to 250 km/h. In terms of features, the CLS series comes standard with up to 10 airbags, as well as adaptive suspension, electric steering wheel adjustment, GPS navigation system, onboard hard drive, automatic LED headlights, and an engine start-stop system.

[CassidyFitz]

I've driven a 2012 CLS 300 for several years, and the engine indeed has quite a few shortcomings. The fuel consumption is relatively high, reaching over 12 liters per 100 kilometers in congested city traffic, and around 10 liters on long-distance drives, making the fuel costs quite painful. The power response can sometimes be sluggish, with noticeable lag when accelerating from a standstill, reportedly due to turbocharger design issues. Over time, minor problems frequently arise: last year, the engine light came on, and the mechanic diagnosed it as a sensor malfunction, costing over two thousand yuan; there was also an oil leak once, and replacing the aged valve cover gasket set me back about a thousand yuan. Overall, maintenance is significantly more expensive than with Toyota or Lexus, with every visit to the shop costing at least several hundred yuan. I recommend conducting a thorough inspection of the engine records when buying a used car to avoid unnecessary expenses later on.

[AliyahDella]

I'm a car enthusiast, and the engine of the 2012 CLS 300 has noticeable drawbacks in driving. The power output isn't smooth enough, with frequent stuttering during low-speed acceleration due to turbo lag, which affects the driving pleasure. The fuel consumption is also unsatisfactory—while it's relatively stable on highways, it often hovers around 12L/100km in city driving. In terms of reliability, common issues include ignition coil failures, which are troublesome to replace, and oil stains accumulating under the hood, mostly caused by seal gasket problems leading to oil leaks. Maintenance costs are higher than those of comparable models, with even a simple repair potentially costing thousands, impacting overall affordability. It would be great if the turbo response and fuel consumption control could be improved, but currently, the engine performance leaves something to be desired.

[IvanDella]

I frequently handle repairs for this type of vehicle, and the engine shortcomings of the 2012 CLS 300 are concentrated in several common issues. Oil leaks are the most frequent, often caused by deteriorating valve cover gaskets, making replacement time-consuming and costly. Turbo components, such as pipes, may crack, leading to power loss. Sensors also malfunction, like oxygen sensor failures causing the engine light to illuminate. Fuel consumption is notably high in urban areas, reflecting poor engine operating efficiency. Maintenance costs are substantial, with expensive parts and premium labor charges at specialized repair shops. Overall reliability falls short compared to Japanese engines, generating numerous owner complaints. Regular oil checks and leak prevention measures are recommended to mitigate these problems.