Are there many problems with the 2011 GL350 diesel version?

[LeBennett]

There are not many problems with the 2011 GL350 diesel version. Here are the specific details: Introduction: The Mercedes-Benz GL350, as a full-size SUV launched by Mercedes-Benz, can accommodate 7 people. At the same time, this car is also a model of luxury, safety, pioneering spirit and high performance. Although the GL350 has a bold design and a powerful body, the wind tunnel refined noise reduction technology and the high-tech comfort and safety under its astonishing size also make this car a strong competitor in its class. Model: The Mercedes-Benz GL350 is one of the models of the Mercedes-Benz GL-Class. This GL series includes the GL350, GL450, GL550, and GL63 AMG, but domestic 4S stores can only purchase the GL450, as it has not been officially introduced for sale in China.

[ZacharyMarie]

I've been driving a 2011 GL350 diesel version for several years and feel it has quite a few issues. The emission system frequently triggers warning lights, especially the DPF particulate filter, which tends to clog and requires regular high-speed regeneration runs; otherwise, acceleration feels sluggish. There are also electronic problems—sensors often report errors, like the NOx sensor failing, costing thousands to repair each time. The fuel system isn’t stable either, with occasional injector sticking, leading to hard starts or black smoke. All these require trips to the dealership, which are time-consuming and expensive. However, the diesel engine is indeed fuel-efficient and powerful. If buying used, I recommend thoroughly inspecting the emission system and maintenance records, and making sure to drive at high speeds regularly, avoiding short trips. Overall, it’s a constant stream of minor issues, with no major repairs yet, but setting aside some budget for contingencies is a must.

[StAmir]

As a long-term car owner and experienced driver, I've had hands-on experience with 11 units of the GL350 diesel version, which indeed came with quite a few issues. Common problems include AdBlue system failures, where the urea injection pump or level sensor tends to malfunction, and replacing the entire set isn't cheap. The turbocharger may also produce abnormal noises or leak oil, especially noticeable during cold starts when you can hear the noise. Additionally, there are cooling system issues, such as coolant leaks caused by aging water pump seals. On the electronics side, the headlight module or the car's computer occasionally acts up. On the bright side, it offers excellent handling, a solid chassis, and high comfort levels. However, maintenance needs to be diligent—for instance, checking the engine oil every 5,000 kilometers and avoiding prolonged idling. Diesel vehicles inherently come with more hassles than gasoline ones, and if used primarily for daily commuting, they might not be cost-effective. That said, they're relatively reliable for long-distance travel.

[VonEva]

I've used the 2011 GL350 diesel version and found it to have quite a few issues. The primary problem lies in emissions: the DPF clogging affects power, and incomplete regeneration leads to higher fuel consumption. Secondly, the engine's surrounding pipe connections are loose, with oil and air leaks being common, resulting in high repair costs. There are also numerous electronic faults, such as false alarms on the dashboard, requiring computer resets. However, the advantages include the diesel engine's strong power and about 20% fuel savings on long trips. With good maintenance, it's manageable—for example, cleaning the fuel injectors every six months and using high-quality diesel additives. Cost-wise, the resale value is low, but parts are expensive, making it less hassle-free than the gasoline version. Overall, if you don't have time for upkeep, it might be problematic; with diligent maintenance, it can last a long time.