The 2006 Mercedes-Benz Trucks ML350 sits in the early luxury SUV era, when comfort, all-weather capability, and a more carlike road feel became central to the segment. For many owners, it remains a practical modern classic that still needs fitment checked carefully because wheel packages changed the tire size. This ML350 uses radial tires, with 235/65R17, 255/55R18, and 255/50R19 all applying depending on the exact sub-model and wheel setup. The real choice is less about vintage construction and more about confirming the correct rim diameter first, then selecting the right modern metric size for appearance, stance, and proper fitment.
Which Tire Size Is Right for The 2006 Mercedes-Benz Trucks ML350
Three tire sizes apply to the 2006 Mercedes-Benz Trucks ML350, and they are tied to specific sub-model and wheel combinations. The first step is confirming the exact sub-model and the actual rim diameter on the vehicle, since this ML350 uses 17-inch, 18-inch, and 19-inch fitments. Once that is settled, the decision becomes choosing the proper metric radial size that matches the vehicle's intended wheel package and preserves the correct overall fit.
235/65R17 is a modern metric radial size in which 235 identifies nominal section width in millimeters, 65 is the aspect ratio, R denotes radial construction, and 17 is the wheel diameter in inches. On the 2006 Mercedes-Benz Trucks ML350, this size is part of the standard radial fitment used on a 17-inch rim. Its dimensions give it a useful place in the ML350 lineup because it preserves the intended wheel diameter relationship for vehicles equipped with that package. Choose this size only after confirming that the SUV is actually running the 17-inch wheel setup.
255/55R18 follows the same metric radial format, with a 255-millimeter nominal section width, a 55-series profile, radial construction, and an 18-inch rim diameter. For the 2006 Mercedes-Benz Trucks ML350, this size serves a different wheel package than the 17-inch fitment, so it should not be treated as a universal substitute across all configurations. Its role is to maintain the intended fit on ML350 models equipped with 18-inch wheels while keeping overall tire diameter very close to the other factory-style fitments. Confirming wheel diameter is the key step before moving forward with this size.
Fit(s): 4Matic w/AMG Sport Pkg. and 4Matic w/Appearance Pkg.
Construction: Radial|Rim: 19 in
255/50R19 is also a metric radial size, combining a 255-millimeter nominal section width with a lower 50-series profile on a 19-inch wheel. On the 2006 Mercedes-Benz Trucks ML350, this size is associated with the AMG Sport Package and Appearance Package configurations, making it a wheel-package-specific fitment rather than a size shared across every ML350. It keeps the overall diameter aligned with the other fitments while using a distinctly larger rim. This is the size to evaluate when the vehicle has the 19-inch package and the visual balance of that setup matters.
Sub-model fitment matters on the 2006 Mercedes-Benz Trucks ML350 because tire size changes with the wheel package. The safest starting point is identifying the exact sub-model and confirming the actual wheel diameter on the vehicle before comparing tire options.
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2006 Mercedes-Benz Trucks ML350 4Matic
The 2006 Mercedes-Benz Trucks ML350 4Matic uses either 235/65R17 or 255/55R18, both in radial construction. That makes wheel confirmation especially important, since the correct tire choice depends on whether the SUV is equipped with the 17-inch or 18-inch setup.
2006 Mercedes-Benz Trucks ML350 4Matic w/AMG Sport Pkg.
The 2006 Mercedes-Benz Trucks ML350 4Matic w/AMG Sport Pkg. uses 255/50R19 radial tires. For this configuration, the focus is on matching the 19-inch wheel package correctly and checking that the vehicle still carries the intended wheel and suspension setup.
The 2006 Mercedes-Benz Trucks ML350 4Matic w/Appearance Pkg. uses 255/50R19 radial tires. That keeps tire selection straightforward once the package is confirmed, with the main priority being correct 19-inch wheel fitment rather than choosing among multiple primary sizes.
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 2006 Mercedes-Benz Trucks ML350 usually come down to identifying the right size for the exact wheel package, understanding modern metric sizing, and checking how wheel, suspension, or appearance changes may affect fitment before the vehicle goes back on the road.
Tire Size & Fitment
What tire size fits a 2006 Mercedes-Benz Trucks ML350?
The 2006 Mercedes-Benz Trucks ML350 uses three possible tire sizes: 235/65R17, 255/55R18, and 255/50R19. All are radial fitments, but they do not apply to every ML350 in the same way because the correct size depends on the exact sub-model and wheel package.
The main step is confirming the actual rim diameter on the vehicle before choosing a tire. A standard 4Matic may use either a 17-inch or 18-inch setup, while AMG Sport Package and Appearance Package models use the 19-inch size, so checking the vehicle's present wheels prevents ordering the wrong fitment.
What size rim does a 2006 Mercedes-Benz Trucks ML350 use?
A 2006 Mercedes-Benz Trucks ML350 may use 17-inch, 18-inch, or 19-inch rims depending on sub-model and wheel package. Those rim diameters correspond to 235/65R17, 255/55R18, and 255/50R19, respectively, and all three fitments are radial.
Rim diameter is the most important number to verify because tire sizes are not interchangeable across different wheel diameters. Looking at the sidewall size code and physically confirming the wheel setup is especially worthwhile on used ML350s, where replacement wheels or appearance upgrades may not match the original package.
Why does the 2006 Mercedes-Benz Trucks ML350 have more than one tire size?
More than one tire size applies to the 2006 Mercedes-Benz Trucks ML350 because different sub-models and appearance packages used different wheel diameters. The standard 4Matic can use 235/65R17 or 255/55R18, while the 4Matic w/AMG Sport Pkg. and 4Matic w/Appearance Pkg. use 255/50R19.
Even though the sizes differ, their overall diameters stay very close, which helps maintain the ML350's intended stance across several wheel packages. For tire selection, that means the real task is matching the tire to the exact wheel and trim configuration rather than assuming every ML350 of this year uses one universal size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2006 Mercedes-Benz Trucks ML350?
Start with the correct size for the exact 2006 Mercedes-Benz Trucks ML350 configuration: 235/65R17, 255/55R18, or 255/50R19. Since all primary fitments are radial, the key decision is not construction type but matching the tire to the wheel diameter and sub-model package already on the vehicle.
After size is confirmed, compare the tire's intended use with how the ML350 is driven and how the vehicle is set up today. A sport-package SUV on 19-inch wheels should stay within that fitment, while a standard 4Matic needs the right 17-inch or 18-inch size to preserve proper clearance and wheel compatibility.
How do I choose between the available ML350 tire sizes if my SUV is used?
A used 2006 Mercedes-Benz Trucks ML350 should be matched to the tire size that corresponds to the wheels currently installed, not simply to the model name. The standard 4Matic may have either 17-inch or 18-inch wheels, and package-equipped models may carry 19-inch wheels with 255/50R19 tires.
Checking the sidewall code, measuring wheel diameter, and confirming whether the vehicle has package-specific or aftermarket wheels helps avoid a mismatch. That matters because the three primary sizes are close in overall diameter but require different rim diameters, so the wrong choice can stop the tire from fitting the wheel entirely.
What does 255/50R19 mean on a 2006 Mercedes-Benz Trucks ML350?
On a 2006 Mercedes-Benz Trucks ML350, 255/50R19 means a nominal 255-millimeter section width, a 50-series aspect ratio, radial construction, and a 19-inch wheel diameter. It is the primary fitment used on the 4Matic w/AMG Sport Pkg. and 4Matic w/Appearance Pkg. configurations.
Understanding that code helps separate wheel diameter from tire width and profile, which is important when replacing only the tires. A 19-inch fitment cannot be substituted onto a 17-inch or 18-inch wheel, so the size code should always be matched to the actual wheel before comparing tread designs or other tire options.
Restoration & Appearance
Does correct tire fitment matter for a 2006 Mercedes-Benz Trucks ML350 restoration?
Correct tire fitment matters on a 2006 Mercedes-Benz Trucks ML350 restoration because the vehicle used more than one wheel-and-tire package. A restoration-minded approach starts by determining whether the SUV is a standard 4Matic, an AMG Sport Package model, or an Appearance Package model, then matching the tire size accordingly.
Using the right size helps preserve the intended visual balance of the wheel package and prevents the finished vehicle from looking off-profile. When originality is especially important, package details, wheel markings, and marque-specific references are worth checking so the restored ML350 reflects the configuration it was built to carry.
Which tire should I choose for a period-style 2006 Mercedes-Benz Trucks ML350?
A period-style 2006 Mercedes-Benz Trucks ML350 should use the primary size tied to its proper wheel package: 235/65R17, 255/55R18, or 255/50R19. Because this ML350 is a modern luxury SUV with radial fitments throughout, staying with the correct metric radial size is the starting point for an authentic overall presentation.
The visual result depends heavily on whether the SUV wears the standard wheel setup or the larger package-specific 19-inch wheels. Rather than treating size as cosmetic only, match the tire to the intended rim diameter and package identity so the vehicle keeps the stance and proportion that suit its original design era.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2006 Mercedes-Benz Trucks ML350?
Modifications can affect tire fitment on a 2006 Mercedes-Benz Trucks ML350, especially when they involve wheel diameter, wheel width, suspension height, or body clearance. This matters because the ML350 already uses multiple factory-style tire sizes, so an altered setup can make a correct original-size choice less straightforward.
A modified ML350 should be checked for actual wheel diameter, steering clearance, and space at the fender and suspension before new tires are installed. Lowering changes, aftermarket wheels, or spacer use can all influence what works safely, even when the tire size looks close to one of the original fitments.
What should I inspect before driving a 2006 Mercedes-Benz Trucks ML350 on new tires?
Before driving a 2006 Mercedes-Benz Trucks ML350 on new tires, inspect wheel condition, confirm the installed size matches the wheel diameter, and make sure the tires are inflated properly for the vehicle's setup. It is also smart to look over the suspension and steering components so the tires are not immediately compromised by worn hardware.
A short clearance check at full steering lock is worthwhile, particularly on vehicles with 18-inch or 19-inch wheels or any prior modifications. After a brief road test, recheck air pressure and look for any signs of rubbing, vibration, or uneven seating so the ML350 can return to regular use with confidence.
How often should tires on a 2006 Mercedes-Benz Trucks ML350 be inspected?
Tires on a 2006 Mercedes-Benz Trucks ML350 should be inspected regularly, not just when tread looks worn. Check them for air loss, sidewall cracking, cuts, bulges, and uneven wear, especially if the SUV sees seasonal use, sits for long periods, or has recently changed wheels or suspension components.
Routine inspections are especially useful on an older luxury SUV because age-related tire issues may appear before mileage-related wear does. Looking over the tires before longer drives and after storage helps catch problems early, and it also confirms that the chosen 17-inch, 18-inch, or 19-inch fitment is wearing evenly in service.
