The 2011 Mercedes-Benz Trucks ML350 blends midsize luxury utility with the composed road manners that helped define this generation of Mercedes-Benz sport utility vehicles. Buyers often value it as a daily driver, family hauler, or long-term kept vehicle rather than a purely collectible machine, which makes correct tire fitment especially important. This ML350 uses radial tire fitments in two primary sizes, 255/50R19 and 265/45R20, depending on the wheel setup and sub-model. The choice is less about vintage construction and more about confirming the exact rim diameter first, then selecting the right tire profile for the vehicle’s configuration, appearance, and intended road use.
Which Tire Size Is Right for The 2011 Mercedes-Benz Trucks ML350
Two tire sizes apply to the 2011 Mercedes-Benz Trucks ML350, and the first step is confirming whether the vehicle is on 19-inch or 20-inch wheels. Both are radial fitments, but the correct size depends on the exact sub-model and wheel setup. Before choosing a tire, identify the specific configuration and verify that the wheels currently on the vehicle match the intended fitment.
255/50R19 is a metric radial size in which 255 identifies nominal section width in millimeters, 50 is the aspect ratio, R indicates radial construction, and 19 is the rim diameter in inches. On the 2011 Mercedes-Benz Trucks ML350, this size is one of the primary fitments and appears across multiple sub-models. Its overall proportions suit buyers who need to stay with the 19-inch wheel setup rather than moving to a larger rim. This is the size to evaluate when the vehicle is equipped with 19-inch wheels and the goal is maintaining the proper fitment format for that configuration.
265/45R20 is a metric radial size where 265 represents nominal section width in millimeters, 45 is the aspect ratio, R marks radial construction, and 20 identifies the wheel diameter in inches. For the 2011 Mercedes-Benz Trucks ML350, this size is tied to vehicles running a 20-inch wheel package rather than the 19-inch setup. The lower profile and larger rim diameter make wheel confirmation especially important before tire selection. This size should be considered only after verifying that the vehicle’s actual wheels and clearances match the 20-inch fitment.
Sub-model fitment is mostly straightforward on the 2011 Mercedes-Benz Trucks ML350, but not every version shares the same tire-size range. Checking the exact sub-model matters because some configurations use both primary sizes while others are limited to a single fitment.
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2011 Mercedes-Benz Trucks ML350 4Matic
The 2011 Mercedes-Benz Trucks ML350 4Matic uses either of the two primary radial fitments, so wheel diameter is the key detail to confirm before choosing a tire. Once the 19-inch or 20-inch setup is verified, selection becomes a matter of matching the vehicle’s actual wheel package and intended road use.
The 2011 Mercedes-Benz Trucks ML350 Base also spans both primary radial tire sizes, which means there is no single universal answer without checking the wheel setup first. Tire selection starts with confirming whether the vehicle is on 19-inch or 20-inch rims, especially if wheels may have been changed over time.
The 2011 Mercedes-Benz Trucks ML350 Bluetec 4Matic uses the 255/50R19 radial size rather than both fitments used elsewhere in the range. That makes the sizing decision simpler, leaving the buyer to focus on choosing a tire that matches the 19-inch wheel setup and the vehicle’s driving needs.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
Tire questions for the 2011 Mercedes-Benz Trucks ML350 usually come down to size selection, wheel diameter, sub-model differences, and practical fitment checks. These answers focus on identifying the correct radial size, understanding what each code means, and avoiding mistakes when wheels or suspension have changed.
Tire Size & Fitment
What tire size fits a 2011 Mercedes-Benz Trucks ML350?
The 2011 Mercedes-Benz Trucks ML350 uses two primary tire sizes: 255/50R19 and 265/45R20. Both are radial fitments, but they do not apply the same way across every configuration. The ML350 4Matic and ML350 Base can use either size, while the ML350 Bluetec 4Matic uses 255/50R19.
The practical first step is confirming the exact sub-model and the wheel diameter currently on the vehicle. A 19-inch tire and a 20-inch tire are not interchangeable just because they belong to the same model family. If the ML350 has aftermarket wheels or a prior owner changed the setup, verify the actual rim size before selecting tires.
What size rim does a 2011 Mercedes-Benz Trucks ML350 use?
A 2011 Mercedes-Benz Trucks ML350 uses either a 19-inch or 20-inch rim, depending on the tire size fitted to the vehicle. The 255/50R19 tire mounts on a 19-inch wheel, while the 265/45R20 tire mounts on a 20-inch wheel. Both sizes are part of the correct radial fitment range for this model line.
Rim diameter needs to be confirmed before anything else because it determines which tire size can even be considered. Measuring the wheel or reading the current tire sidewall is usually the quickest way to confirm it. On an ML350 that has had wheel changes, relying on the sub-model name alone can lead to ordering the wrong size.
Do all 2011 Mercedes-Benz Trucks ML350 sub-models use the same tire size?
No, not every 2011 Mercedes-Benz Trucks ML350 sub-model uses the same tire-size range. The ML350 4Matic and ML350 Base use both 255/50R19 and 265/45R20, while the ML350 Bluetec 4Matic uses 255/50R19. That means the fitment picture is shared in part, but not completely across the lineup.
That difference matters because tire selection should start with the exact version of the vehicle and the wheels actually installed on it. Even when two sub-models overlap on size, the current wheel package still has to match the tire being considered. A quick check of the existing tire code and wheel diameter helps avoid a fitment mismatch.
Choosing the Right Tire
What should I consider when choosing a tire for a 2011 Mercedes-Benz Trucks ML350?
Start with the correct size for the vehicle’s actual setup: 255/50R19 or 265/45R20. The most important factors are the sub-model, the wheel diameter, and whether the ML350 still has its original wheel configuration or has been changed. Since both fitments are radial, the main decision is not construction type but exact dimensional compatibility.
After size is confirmed, look at how the vehicle is used. A daily driven ML350 may call for different priorities than one used only occasionally. Check that the tire matches the wheel diameter on the vehicle, then confirm clearance, overall condition of the wheels, and whether any suspension or ride-height changes could affect the chosen fitment.
How do I choose between the available tires for a 2011 Mercedes-Benz Trucks ML350?
Choosing between available tires for a 2011 Mercedes-Benz Trucks ML350 starts with removing the wrong size from consideration. A tire in 255/50R19 belongs on a 19-inch setup, while 265/45R20 belongs on a 20-inch setup. Once that is settled, compare options within the correct size rather than across both fitments.
A useful next step is thinking about how the vehicle is driven and maintained. An ML350 used for routine road miles may place more emphasis on a predictable modern fitment, while a lightly used vehicle may simply need a properly sized replacement with careful attention to age and condition. Wheel condition and clearance should still be checked before installation.
What rim-fitment details should I compare when choosing 2011 Mercedes-Benz Trucks ML350 tires?
The key rim-fitment detail on a 2011 Mercedes-Benz Trucks ML350 is diameter. This model uses either a 19-inch wheel with 255/50R19 tires or a 20-inch wheel with 265/45R20 tires. That single difference immediately separates the correct tire choices and keeps the selection focused on what the vehicle can actually accept.
Beyond diameter, inspect the wheel itself for damage, prior repairs, and any sign that it is not the original setup for the vehicle. An ML350 with aftermarket wheels may introduce width or clearance issues even if the diameter seems correct. Verifying the actual wheel package on the vehicle is the best way to prevent avoidable fitment problems.
Restoration & Appearance
Does correct tire fitment matter for a 2011 Mercedes-Benz Trucks ML350 restoration or preservation project?
Yes, correct tire fitment matters on a 2011 Mercedes-Benz Trucks ML350 even when the goal is preservation rather than full restoration. The right size keeps the vehicle visually balanced and maintains the intended relationship between tire sidewall, wheel diameter, and stance. On this ML350, that means staying with either 255/50R19 or 265/45R20 as appropriate.
Appearance is only part of the equation. A preservation-minded owner should also confirm that the current wheels are the ones meant for the chosen tire size, especially on a vehicle that may have changed hands several times. When originality is important, comparing the present setup with vehicle-specific reference material can help confirm the most appropriate direction.
How does tire size affect the appearance of a 2011 Mercedes-Benz Trucks ML350?
Tire size has a visible effect on the 2011 Mercedes-Benz Trucks ML350 because the model uses two different wheel diameters with different sidewall proportions. A 255/50R19 setup presents a 19-inch wheel with a taller sidewall than a 265/45R20 setup. Both are correct within the ML350 range, but they create a different visual balance.
That matters most when trying to preserve the vehicle’s intended look rather than simply replacing worn tires. Changing wheel diameter changes the way the tire fills the wheel opening and how much sidewall is visible. Owners who care about maintaining the proper appearance should verify the existing wheel package first and replace the tires within that same fitment.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Mercedes-Benz Trucks ML350?
Yes, modifications can affect tire fitment on a 2011 Mercedes-Benz Trucks ML350 even when the tire size itself appears correct. Aftermarket wheels, altered ride height, suspension changes, or body modifications can change clearance at the fender, suspension, or steering components. That is especially important on a model that already has both 19-inch and 20-inch fitment paths.
A modified ML350 should be checked as it sits, not simply matched by model year and nameplate. Tire diameter, wheel diameter, and available clearance all work together. Before replacing tires, turn the steering through its full range and inspect for signs of rubbing or unusually tight spacing so the chosen size suits the actual vehicle setup.
What should I inspect before driving a 2011 Mercedes-Benz Trucks ML350 on new tires?
Before driving a 2011 Mercedes-Benz Trucks ML350 on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and make sure all four tires are properly seated and inflated. It is also wise to look at suspension and steering components for obvious wear that could affect tire behavior once the vehicle is back on the road.
A short initial check can prevent larger problems later. Watch for air loss, vibration, rubbing at full steering lock, or uneven stance after installation. On an ML350 that has sat for long periods, basic road-readiness matters just as much as the new tires themselves. Tire replacement is a good time to confirm the vehicle is mechanically ready for use.
How often should tires on a 2011 Mercedes-Benz Trucks ML350 be inspected?
Tires on a 2011 Mercedes-Benz Trucks ML350 should be inspected regularly, especially if the vehicle is driven infrequently or stored for extended periods. Look for sidewall cracking, cuts, bulges, uneven wear, and signs of air loss. Since this ML350 may serve as either a routine driver or a lower-mileage kept vehicle, condition can matter as much as tread depth.
A quick visual inspection before longer drives is a smart habit, and occasional checks between drives help catch aging-related issues early. Low-use vehicles sometimes wear very little tread while the tires still age out. Keeping inflation consistent and storing the vehicle away from prolonged sunlight and heat can also help protect the tires between outings.
