The 2014 Mercedes-Benz CLS550 blends four-door luxury with the low-roof styling and strong road presence that defined the modern CLS line. In this generation, the car sits firmly in the high-performance grand touring category, so tire selection is tied closely to both wheel diameter and front-to-rear stagger. The 2014 Mercedes-Benz CLS550 uses radial tires in staggered front and rear sizes, with both 18-inch and 19-inch fitments appearing across the covered configurations. Available choices focus on modern blackwall performance radials from BFGoodrich and Nitto. The key is matching the exact front or rear size and wheel diameter before comparing series, load details, and road-use priorities.
Which Tire Size Is Right for The 2014 Mercedes-Benz CLS550
The 2014 Mercedes-Benz CLS550 uses four primary tire sizes, and the right choice depends first on whether you are selecting for the front or rear axle and whether the car is on 18-inch or 19-inch wheels. Both Base and 4Matic configurations share the same staggered front-and-rear sizing pattern, so confirming wheel diameter is the most important first step before comparing tire options.
A 255/35R19 tire uses a 255-millimeter section width, a 35-series aspect ratio, radial construction, and a 19-inch rim diameter. On the 2014 Mercedes-Benz CLS550, this is a front fitment used with the 19-inch staggered setup, where it works as part of a matched front-and-rear combination rather than as a standalone size choice. Available options in this size come from BFGoodrich in blackwall form across the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. It is the right size to evaluate when the car has 19-inch front wheels and you want to compare performance-oriented radial choices within that exact fitment.
A 255/40R18 tire keeps the same 255-millimeter nominal width but uses a taller 40-series sidewall on an 18-inch rim. For the 2014 Mercedes-Benz CLS550, this size serves as the front fitment on the 18-inch staggered setup, so it should be paired with the corresponding rear size for that wheel diameter. BFGoodrich offers blackwall radial choices here as well, including the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. This is the size to focus on when the car is equipped with 18-inch front wheels and the goal is to stay within the proper front fitment while comparing series and specification details.
A 285/30R19 tire uses a wider 285-millimeter section width, a lower 30-series profile, radial construction, and a 19-inch rim diameter. On the 2014 Mercedes-Benz CLS550, this is a rear fitment for the 19-inch staggered arrangement, giving the car a wider rear tire than the front. Its role is different from the front sizes, so it should be matched to the correct rear wheel diameter and axle position before any other comparison is made. This is the size to verify when the CLS550 has 19-inch rear wheels, especially on a car where wheels may have been changed from the original staggered setup.
A 285/35R18 tire combines a 285-millimeter nominal width with a 35-series sidewall and an 18-inch rim diameter in radial construction. For the 2014 Mercedes-Benz CLS550, it serves as the rear tire size on the 18-inch staggered setup, complementing the narrower 255/40R18 front fitment. The available product in this size is a blackwall Nitto NT555 G2, which gives this rear fitment a more focused product path than the front sizes. It is the size to confirm when selecting for an 18-inch rear wheel, especially if the car has a staggered setup that must preserve front-to-rear balance and clearance.
Fitment is consistent across the covered CLS550 Base and 4Matic configurations in that both use staggered front and rear sizing with either 18-inch or 19-inch wheel diameters. Checking the exact front or rear position still matters, because the tire size changes by axle even when the sub-model pattern stays the same.
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2014 Mercedes-Benz CLS550 4Matic Front
The 2014 Mercedes-Benz CLS550 4Matic Front uses the narrower front tire sizes in the staggered setup, with one size tied to 18-inch wheels and the other tied to 19-inch wheels. Tire selection here starts with wheel diameter, then moves to comparing the available front radial options within the correct size.
The 2014 Mercedes-Benz CLS550 4Matic Rear uses the wider rear tire sizes that complete the staggered fitment, again split between 18-inch and 19-inch wheel diameters. Matching the rear axle size correctly is important for maintaining the intended front-to-rear relationship and avoiding confusion with the narrower front tires.
The 2014 Mercedes-Benz CLS550 Base Front follows the same staggered front sizing pattern as the 4Matic version, with one front size for 18-inch wheels and another for 19-inch wheels. The practical choice is not between different constructions, but between the correct wheel diameter and the available front radial product series.
The 2014 Mercedes-Benz CLS550 Base Rear uses the same wider rear sizing approach as the 4Matic model, with separate rear sizes for 18-inch and 19-inch setups. Confirming rear wheel diameter first keeps the search on the correct staggered fitment and helps avoid mixing front and rear sizing by mistake.
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 2014 Mercedes-Benz CLS550 Tires for Sale
Available 2014 Mercedes-Benz CLS550 tire choices center on blackwall radial performance tires from BFGoodrich and Nitto. The front sizes offer several g-Force series options, while the 285/35R18 rear size is available in the Nitto NT555 G2, so the main comparisons are size, wheel diameter, series, and rim-width compatibility.
These FAQs focus on the exact tire sizes used on the 2014 Mercedes-Benz CLS550, including staggered front and rear fitment, 18-inch versus 19-inch wheel setups, product selection, and the checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 2014 Mercedes-Benz CLS550?
The 2014 Mercedes-Benz CLS550 uses a staggered radial setup with four primary sizes across the covered configurations: 255/40R18 and 255/35R19 for the front, plus 285/35R18 and 285/30R19 for the rear. Base and 4Matic models follow the same front-and-rear pattern, with the difference driven by wheel diameter rather than a completely different fitment approach.
The most important step is identifying whether the car has 18-inch or 19-inch wheels and whether you are buying for the front or rear axle. Because the CLS550 uses different widths front to rear, avoid choosing a tire by diameter alone. On a car with replacement wheels, verify the actual wheel size on the vehicle before selecting a tire.
What size rim does a 2014 Mercedes-Benz CLS550 use?
The 2014 Mercedes-Benz CLS550 uses either 18-inch or 19-inch rims, depending on the tire size and wheel setup on the car. The 255/40R18 and 285/35R18 sizes are for 18-inch wheels, while the 255/35R19 and 285/30R19 sizes are for 19-inch wheels.
That rim diameter must match the tire exactly, so confirming wheel size is the first fitment check before comparing brands or series. It is also important to keep front and rear positions straight, since the car uses a staggered arrangement. If the CLS550 has aftermarket wheels, inspect the wheel markings or measure carefully rather than assuming the original diameter is still in place.
Do all 2014 Mercedes-Benz CLS550 sub-models use the same tire size?
The covered 2014 Mercedes-Benz CLS550 Base and 4Matic configurations use the same general staggered fitment pattern, but not one single tire size at all four corners. Both use one of two front sizes and one of two rear sizes, with the difference determined by whether the car is equipped with 18-inch or 19-inch wheels.
That means the sub-model name alone does not finish the tire search. The front axle uses a narrower size than the rear, and the 18-inch and 19-inch packages are not interchangeable without checking the full wheel-and-tire setup. Looking at the tire sidewall already on the car is often the quickest way to confirm the correct position-specific size.
Choosing the Right Tire
What should I consider when choosing a 2014 Mercedes-Benz CLS550 tire?
Start with the exact axle position and wheel diameter, because the 2014 Mercedes-Benz CLS550 uses staggered sizing and two different rim diameters. After that, compare the available radial tire series in the correct size, along with rim-width compatibility, load details where stated, and the kind of road use the car sees most often.
A front tire should be chosen against the front size only, and a rear tire should stay within the matching rear fitment for the wheel diameter in use. It also helps to compare whether the car is driven mainly as a daily road car, a seasonal cruiser, or a higher-speed touring car. Matching the tire to the car’s actual setup prevents avoidable fitment and handling compromises.
What sidewall styles are available for 2014 Mercedes-Benz CLS550 tires?
The available tires for the covered 2014 Mercedes-Benz CLS550 sizes use a blackwall sidewall style. That applies across the BFGoodrich front-size options and the Nitto rear option shown for the 18-inch rear fitment, so the visible presentation stays modern and performance-oriented rather than traditional or decorative.
For this vehicle, sidewall choice is less about appearance variety and more about selecting the correct size, axle position, and tire series. A blackwall look suits the CLS550’s late-model grand touring character, but the main fitment work still comes first. Once size and wheel diameter are confirmed, the buyer can focus on the differences between the available radial product lines.
What brands offer tires for the 2014 Mercedes-Benz CLS550?
BFGoodrich and Nitto offer tires in the covered 2014 Mercedes-Benz CLS550 sizes. BFGoodrich appears across the front fitments in several g-Force series, while Nitto is available in the 285/35R18 rear size through the NT555 G2 line.
Brand alone should not drive the decision ahead of fitment. The more useful comparison is whether the tire is available in the exact front or rear size needed, whether it matches the wheel diameter on the car, and how the series aligns with the way the vehicle is used. On a staggered setup, availability can differ between front and rear sizes, so check each position separately.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2014 Mercedes-Benz CLS550?
Yes. Wheel changes, suspension lowering, altered offsets, or body modifications can all affect tire fitment on a 2014 Mercedes-Benz CLS550, especially because it already uses a staggered front-and-rear setup. Even when the tire size matches a listed size, changes to the wheel or ride height can alter clearance at the fender, suspension, or steering components.
A modified CLS550 should be checked for actual wheel diameter, wheel width, and tire-to-body clearance before replacement tires are chosen. It is also smart to inspect for signs of rubbing on the inner liner or outer shoulder of the old tires. Those details matter more on a low-profile performance fitment than they would on a taller, more forgiving setup.
What should I inspect before driving a 2014 Mercedes-Benz CLS550 on new tires?
Before regular road use, inspect tire pressure, wheel fastener torque, tread and sidewall condition, and the basic front-to-rear size placement on the car. On a 2014 Mercedes-Benz CLS550, it is especially important to make sure the narrower front tires and wider rear tires are in the correct positions for the staggered setup.
A short clearance check at full steering lock is worthwhile after installation, particularly if the car has non-original wheels or suspension changes. It also helps to confirm there is no vibration, pulling, or unusual air loss after the first few drives. Catching those issues early can prevent uneven wear and helps confirm the tire and wheel combination is working as intended.
How often should tires on a 2014 Mercedes-Benz CLS550 be inspected?
Tires on a 2014 Mercedes-Benz CLS550 should be inspected regularly, not only when they look worn. A monthly visual check is a sensible routine, with closer inspection before longer trips or any time the car has been parked for an extended period. Low-profile radial tires can show damage or pressure loss that is easier to catch early than after road use.
Look for uneven tread wear, cuts, bulges, cracking, and anything that suggests contact with suspension or bodywork. Pressure should be checked when the tires are cold, and the wheel itself should be examined for damage as well. On a staggered performance sedan, consistent inspection helps preserve handling balance and reduces the chance of finding a problem only after it becomes more serious.
