The 2017 Mercedes-Benz CLS550 blends coupe-like styling with the pace and road presence expected from a modern Mercedes performance sedan. By this point, the CLS had become a distinctly upscale grand-touring platform, so tire choice matters not just for looks, but for how the car sits, steers, and rides. The 2017 Mercedes-Benz CLS550 uses staggered radial tire fitments, with different front and rear sizes and either 18-inch or 19-inch wheel packages. Available choices center on blackwall performance radials from BFGoodrich and Nitto across several series. The key is confirming whether the car is on the 18-inch or 19-inch setup before comparing front and rear tire options.
Which Tire Size Is Right for The 2017 Mercedes-Benz CLS550
The 2017 Mercedes-Benz CLS550 uses four primary tire sizes, and the correct choice depends first on wheel diameter and axle position. Front and rear fitment is staggered, with one pair of sizes for the 19-inch setup and another pair for the 18-inch setup. Before selecting a tire, confirm whether the car has 18-inch or 19-inch wheels and whether you are shopping for the front or rear axle.
255/35R19 is a metric radial size in which 255 indicates section width in millimeters, 35 is the aspect ratio, R identifies radial construction, and 19 is the wheel diameter in inches. On the 2017 Mercedes-Benz CLS550, this size serves the front position on the 19-inch staggered setup. Available choices include BFGoodrich blackwall tires in the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. This size matters when preserving the intended front fitment on a CLS550 equipped with 19-inch wheels.
255/40R18 is a metric radial size with a 255-millimeter section width, a 40-series profile, and fitment for an 18-inch rim. On the 2017 Mercedes-Benz CLS550, it is the front tire size for the 18-inch staggered wheel package. BFGoodrich offers this size in blackwall form across the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines. Choose this size when the car is running the 18-inch front wheel setup and you want to compare tire series within the correct front fitment.
285/30R19 is a metric radial size where 285 refers to section width in millimeters, 30 is the aspect ratio, R denotes radial construction, and 19 is the rim diameter in inches. On the 2017 Mercedes-Benz CLS550, this is the rear size paired with the 19-inch front fitment for the staggered arrangement. Its role is to maintain the proper rear tire position on the 19-inch package rather than serve as a universal CLS550 fitment. Buyers should confirm the rear wheel diameter and current wheel setup before using this size as the basis for replacement.
285/35R18 is a metric radial size with a 285-millimeter section width, a 35-series profile, and an 18-inch rim diameter. On the 2017 Mercedes-Benz CLS550, it fills the rear position on the 18-inch staggered setup. An available choice in this size is the Nitto NT555 G2, offered as a blackwall radial for wider rear-wheel fitment. This size should be evaluated as part of the complete 18-inch front-and-rear package so the rear tire matches the wheel diameter and intended staggered configuration.
Fitment is straightforward once the wheel package and axle position are identified, because both Base and 4Matic configurations use the same front and rear size pattern. What matters most is confirming whether the car is on the 18-inch or 19-inch staggered setup before choosing a tire.
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2017 Mercedes-Benz CLS550 4Matic Front
The 2017 Mercedes-Benz CLS550 4Matic Front uses either the 255/35R19 or 255/40R18 radial front size, depending on wheel diameter. That means front-tire selection starts with confirming the 18-inch or 19-inch wheel package and then comparing blackwall performance radial choices within the correct size.
The 2017 Mercedes-Benz CLS550 4Matic Rear uses either 285/30R19 or 285/35R18 in radial construction, matching the staggered rear setup. Rear-tire replacement should follow the actual wheel diameter on the car so the wider rear fitment remains consistent with the front package.
The 2017 Mercedes-Benz CLS550 Base Front uses the same front-size pattern as the 4Matic version, with either 255/35R19 or 255/40R18. Tire choice here comes down to confirming wheel diameter first, then selecting among the available blackwall radial performance series in the proper front size.
The 2017 Mercedes-Benz CLS550 Base Rear uses either 285/30R19 or 285/35R18, depending on which staggered wheel package is on the car. Buyers should match the rear replacement tire to the installed wheel diameter and keep the front-to-rear fitment relationship intact when comparing options.
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.
Best 2017 Mercedes-Benz CLS550 Tires for Sale
Available 2017 Mercedes-Benz CLS550 tire choices focus on blackwall radial performance tires. Front sizes are offered by BFGoodrich across the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series, while the 285/35R18 rear size includes a Nitto NT555 G2 option.
The most important questions for the 2017 Mercedes-Benz CLS550 center on staggered front and rear tire sizes, 18-inch versus 19-inch wheel fitment, and how to compare the available blackwall radial performance tires for the correct axle position.
Tire Size & Fitment
What tire size fits a 2017 Mercedes-Benz CLS550?
The 2017 Mercedes-Benz CLS550 uses a staggered tire setup, so front and rear sizes are different. Front fitment is either 255/35R19 or 255/40R18, while rear fitment is either 285/30R19 or 285/35R18. All of these are radial sizes.
The correct combination depends on which wheel package is on the car. A CLS550 with 19-inch wheels uses the 255/35R19 front and 285/30R19 rear pairing, while an 18-inch setup uses 255/40R18 front and 285/35R18 rear. Checking both wheel diameter and axle position before ordering helps prevent mixing sizes from different packages.
What size rim does a 2017 Mercedes-Benz CLS550 use?
The 2017 Mercedes-Benz CLS550 uses either 18-inch or 19-inch rims, depending on the tire package on the car. The 255/40R18 and 285/35R18 sizes mount on 18-inch wheels, while the 255/35R19 and 285/30R19 sizes mount on 19-inch wheels.
That makes rim diameter the first fitment check before selecting tires. The car also uses a staggered arrangement, so the front and rear sizes differ even when the wheel diameter matches. Looking at the current tire sidewall or measuring the installed wheel is the simplest way to confirm which package the CLS550 is actually using.
Do all 2017 Mercedes-Benz CLS550 sub-models use the same tire size?
Base and 4Matic versions follow the same front-and-rear fitment pattern, but not one single tire size across the whole car. Both use either 255/35R19 or 255/40R18 in front and either 285/30R19 or 285/35R18 in the rear, depending on wheel diameter.
The practical takeaway is that sub-model alone does not finish the fitment question. A buyer still needs to confirm whether the car is on the 18-inch or 19-inch setup and whether the tire being replaced is from the front or rear axle. That approach keeps the staggered configuration intact and avoids cross-matching the wrong package.
Choosing the Right Tire
What should I consider when choosing a 2017 Mercedes-Benz CLS550 tire?
Start with the exact size, wheel diameter, and axle position. The 2017 Mercedes-Benz CLS550 uses staggered radial fitments, so front and rear tires are not interchangeable, and the car may be equipped with either an 18-inch or 19-inch package.
After size is confirmed, compare the available tire series, rim-width specifications, load figures where shown, and the kind of driving the car sees. A CLS550 used mainly for daily road use may lead a buyer toward one performance radial series, while a more occasional fair-weather car may emphasize appearance, brand preference, or maintaining the existing wheel setup.
What sidewall styles are available for 2017 Mercedes-Benz CLS550 tires?
The available tires for the 2017 Mercedes-Benz CLS550 are blackwall radials. That applies across the BFGoodrich front-size options and the Nitto rear option shown for the 18-inch rear fitment.
Since sidewall style does not vary here, the real visual and functional differences come from tire series and the exact size on the car. For a modern performance sedan like the CLS550, blackwall tires suit the original character of the fitment, but the buyer still needs to match the correct front or rear size and the correct wheel diameter.
What brands offer tires for the 2017 Mercedes-Benz CLS550?
BFGoodrich and Nitto both appear in the available 2017 Mercedes-Benz CLS550 tire selections. BFGoodrich covers the two front sizes with several g-Force series options, while Nitto appears in the 285/35R18 rear size with the NT555 G2.
Brand choice should come after confirming the exact fitment on the car. On a staggered setup, the useful comparison is not just brand name, but whether the tire is offered in the needed front or rear size, the wheel diameter it matches, and how its series and specifications line up with the way the CLS550 is driven.
Restoration & Appearance
Which tire should I choose for a period-style 2017 Mercedes-Benz CLS550?
A period-style choice for a 2017 Mercedes-Benz CLS550 still starts with the correct modern radial size and the proper staggered front-and-rear pairing. The car uses contemporary metric radial fitments, so maintaining the correct 18-inch or 19-inch package is more important than chasing a vintage-style construction.
Appearance on this model is shaped more by preserving the intended wheel-and-tire stance than by selecting decorative sidewall treatments. Blackwall tires are the available style here, which suits the CLS550's modern grand-touring character. Buyers focused on a highly exact presentation should also compare the car against original window sticker, delivery literature, or marque-specific references.
Does correct tire fitment matter for a 2017 Mercedes-Benz CLS550 restoration?
Yes, correct tire fitment matters because the 2017 Mercedes-Benz CLS550 uses a staggered setup with different front and rear sizes. Keeping the proper axle-specific size and matching the installed 18-inch or 19-inch wheel package helps preserve the car's intended stance and overall visual balance.
A restoration-minded owner should pay close attention to wheel diameter, tire profile, and whether the car remains on its original wheel package. Even on newer collector vehicles, the wrong front or rear size can change the look of the car noticeably. Matching the actual wheel setup before replacing tires is the best starting point for an accurate presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 Mercedes-Benz CLS550?
Yes. Changes such as aftermarket wheels, altered offsets, suspension lowering, spring changes, or body modifications can affect tire fitment on a 2017 Mercedes-Benz CLS550. That matters even more on this car because it uses staggered front and rear sizes and may already be configured with either 18-inch or 19-inch wheels.
A modified CLS550 should be checked for wheel diameter, wheel width, inner and outer clearance, and steering or suspension travel before replacing tires. Using the factory size as a starting point is helpful, but it does not override changes made to the car. Verifying the current setup on all four corners is the safest way to avoid a mismatch.
What should I inspect before driving a 2017 Mercedes-Benz CLS550 on new tires?
Before road use, inspect air pressure, lug torque, tread and sidewall condition, and confirm that each tire is mounted in the correct front or rear position. On a 2017 Mercedes-Benz CLS550, it is also important to make sure the wheel diameter and the staggered size pairing match the car's actual setup.
A short initial drive should be followed by another check for air loss, rubbing, or any sign of clearance trouble. Collector-owned or low-mileage cars deserve extra attention because age, storage conditions, and long periods of inactivity can affect tires and suspension parts. A careful post-installation inspection helps catch small issues before a longer trip.
What should I check before a longer drive in a 2017 Mercedes-Benz CLS550?
Before a longer drive, confirm proper inflation, inspect the tread and sidewalls for cracking, bulges, or cuts, and make sure the front and rear tires are the correct staggered sizes for the car's wheel package. The 2017 Mercedes-Benz CLS550 depends on that front-to-rear relationship being maintained.
A longer trip is also a good reason to look over wheel condition, alignment behavior, and any signs of rubbing at full steering lock or over suspension movement. Cars that spend time parked can develop tire aging issues even with low mileage. Giving the CLS550 a full walk-around and a brief test drive before departure can prevent avoidable trouble.
