The 2010 Mercedes-Benz Trucks R350 belongs to the final years of Mercedes-Benz’s R-Class experiment, blending wagon, crossover, and luxury people-mover traits into one distinctive package. Buyers looking at one today are often balancing comfort, long-distance usability, and the need to keep the vehicle’s stance and road manners properly sorted. Tire fitment centers on two radial sizes, 255/50R19 and 255/55R18, with the exact choice depending on the vehicle’s wheel setup and sub-model. That makes this page less about old-style bias-ply versus radial decisions and more about confirming the correct rim diameter, then choosing the right tire within that modern metric fitment.
Which Tire Size Is Right for The 2010 Mercedes-Benz Trucks R350
The 2010 Mercedes-Benz Trucks R350 uses two primary tire sizes, and both are radial metric fitments with different rim diameters. The first thing to confirm is whether your vehicle is on 19-inch or 18-inch wheels, since wheel diameter determines which size applies. Sub-model also matters here, because the R350 Bluetec 4Matic uses 255/50R19 while the R350 4Matic can appear with either size.
A 255/55R18 tire also uses a 255-millimeter section width and radial construction, but its 55-series profile is paired with an 18-inch wheel. For the 2010 Mercedes-Benz Trucks R350, this size applies to certain R350 4Matic configurations rather than the Bluetec 4Matic. The practical difference for the buyer is not just profile language on the sidewall, but the fact that this tire belongs on an 18-inch rim. It is the size to consider only after confirming that the vehicle is actually equipped with the correct 18-inch wheel setup.
Sub-model fitment is not completely uniform on the 2010 Mercedes-Benz Trucks R350, so identifying the exact version matters before choosing tires. The key distinction is that the Bluetec 4Matic uses one size, while the R350 4Matic appears with two possible wheel-and-tire combinations.
1
2010 Mercedes-Benz Trucks R350 4Matic
The 2010 Mercedes-Benz Trucks R350 4Matic can use either 255/50R19 or 255/55R18, both in radial construction. That makes wheel confirmation the first step, since tire selection depends on whether the vehicle is wearing its 19-inch or 18-inch setup.
The 2010 Mercedes-Benz Trucks R350 Bluetec 4Matic uses the 255/50R19 radial size. Tire shopping is more straightforward on this sub-model, but it still pays to confirm the actual wheel package if the vehicle has had wheel changes during its life.
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
Owners of a 2010 Mercedes-Benz Trucks R350 usually need clarity on the correct tire size, whether sub-models share fitment, and how wheel diameter affects the decision. The questions below focus on exact size selection, modern radial fitment, appearance, and road-use checks.
Tire Size & Fitment
What tire size fits a 2010 Mercedes-Benz Trucks R350?
The 2010 Mercedes-Benz Trucks R350 uses two primary tire sizes: 255/50R19 and 255/55R18. Both are radial metric sizes, but they do not fit the same wheel diameter, so the correct choice depends on the exact wheel package installed on the vehicle.
The practical next step is to confirm whether the R350 is on 19-inch or 18-inch wheels before selecting tires. Sub-model matters as well, since the Bluetec 4Matic uses 255/50R19, while the R350 4Matic can appear with either size depending on its setup.
What size rim does a 2010 Mercedes-Benz Trucks R350 use?
A 2010 Mercedes-Benz Trucks R350 uses either a 19-inch rim with 255/50R19 tires or an 18-inch rim with 255/55R18 tires. The tire size and rim diameter are matched, so the wheel determines which of those two fitments applies.
That makes wheel verification more important than simply matching the section width on the old tire. A quick check of the wheel itself, the current sidewall markings, or the vehicle’s existing setup helps prevent buying a 19-inch tire for an 18-inch wheel or the other way around.
Do all 2010 Mercedes-Benz Trucks R350 sub-models use the same tire size?
No. The 2010 Mercedes-Benz Trucks R350 Bluetec 4Matic uses 255/50R19, while the 2010 Mercedes-Benz Trucks R350 4Matic can use either 255/50R19 or 255/55R18. The fitment is close in overall dimensions, but it is not identical across every sub-model and wheel combination.
That means the safest way to choose tires is to identify both the sub-model and the actual wheel diameter on the vehicle. Many used examples have changed hands over the years, and any wheel swap can affect which tire size belongs on the R350 now.
Choosing the Right Tire
What should I consider when choosing a tire for a 2010 Mercedes-Benz Trucks R350?
Start with the correct size for the vehicle’s wheel package: 255/50R19 or 255/55R18. Since both fitments are modern radial sizes, the main decision is not tire construction style but making sure the tire matches the installed rim diameter and the intended use of the vehicle.
After that, compare the tire’s fitment details against how the R350 is actually used, whether that means regular road driving, long-distance travel, or occasional-use ownership. Wheel condition, suspension condition, and any previous wheel changes should all be checked before settling on one exact tire.
How do I choose between 255/50R19 and 255/55R18 tires for a 2010 Mercedes-Benz Trucks R350?
The choice is determined by the wheel, not by preference alone. A 255/50R19 belongs on a 19-inch rim, while a 255/55R18 belongs on an 18-inch rim, so the R350’s current wheel diameter decides which tire size should be used.
Although the two sizes share the same listed overall diameter and section width here, they are still built around different rims. Checking the wheel package first keeps the selection process simple and avoids treating two valid R350 sizes as interchangeable without confirming the actual setup.
Why is wheel diameter so important when selecting 2010 Mercedes-Benz Trucks R350 tires?
Wheel diameter is critical because the 2010 Mercedes-Benz Trucks R350 uses two tire sizes that are tied to two different rims. Even though both sizes are modern radial fitments and share similar basic dimensions, one is made for an 18-inch wheel and the other for a 19-inch wheel.
That means a tire can be correct for the model yet still be wrong for the vehicle in front of you. Checking the actual wheel size prevents fitment mistakes and helps narrow the decision to the tire options that truly belong on that specific R350 configuration.
Restoration & Appearance
Does correct tire fitment matter for a 2010 Mercedes-Benz Trucks R350 restoration or preservation project?
Yes. Even though the 2010 Mercedes-Benz Trucks R350 is a modern vehicle compared with classic-era cars, correct tire fitment still matters if the goal is to preserve its original stance, wheel relationship, and overall presentation. Using the proper 255/50R19 or 255/55R18 size keeps the wheel-and-tire package visually coherent.
A preservation-minded owner should confirm what wheel package the vehicle carries today rather than assuming it still wears its original setup. On a vehicle that may have seen replacement wheels or prior modifications, that check is just as important for appearance as it is for safe mechanical fitment.
How does tire size affect the appearance of a 2010 Mercedes-Benz Trucks R350?
Tire size affects how the 2010 Mercedes-Benz Trucks R350 sits on its wheels and how balanced the vehicle looks from the side. The two accepted sizes, 255/50R19 and 255/55R18, are matched to different wheel diameters, so the visual presentation depends on keeping the tire and rim combination correct.
Appearance-focused owners should avoid choosing by sidewall impression alone and instead verify the wheel diameter first. Keeping the proper tire size on the proper rim helps preserve the R350’s intended proportions and avoids an obviously mismatched look that can come from incorrect wheel-and-tire pairing.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2010 Mercedes-Benz Trucks R350?
Yes. Any change to wheels, suspension height, or related chassis components can affect tire fitment on a 2010 Mercedes-Benz Trucks R350. That matters here because the vehicle already has two accepted size-and-rim combinations, so modifications can complicate what would otherwise be a straightforward size decision.
A modified R350 should be checked for actual wheel diameter, wheel width, and clearance around the fenders and steering components before replacing tires. Even when using one of the known factory-style sizes, an altered setup can change what fits comfortably within the vehicle’s available space.
What should I inspect before driving a 2010 Mercedes-Benz Trucks R350 on new tires?
Before road use, inspect the wheel condition, valve stems, and tire pressure, and make sure the installed tire size matches the R350’s actual wheel diameter. It is also wise to look over the suspension and steering for worn components that could affect how a fresh set of tires behaves.
A short test drive should include attention to vibration, pulling, rubbing, or any sign that the tire does not suit the current wheel-and-vehicle setup. On a used R350, those checks matter just as much as the tire size itself because prior repairs or wheel changes can alter fitment.
How often should tires on a 2010 Mercedes-Benz Trucks R350 be inspected?
Tires on a 2010 Mercedes-Benz Trucks R350 should be inspected regularly, not just when tread looks low. Routine checks should include pressure, visible damage, uneven wear, cracking, bulges, and any sign of air loss, especially on a vehicle that may sit for stretches between longer drives.
Frequent inspection helps catch problems that can be missed on a heavier luxury wagon-style vehicle where tire issues do not always show up immediately in casual driving. Looking over the tires before road trips and during normal maintenance intervals is a sensible habit for keeping the R350 ready for use.
