2013 Mercedes-Benz CL550 Tires

The 2013 Mercedes-Benz CL550 uses three possible radial tire sizes: 255/45R18, 255/40R19, and 255/35R20. The 4Matic uses 255/45R18, while the 4Matic w/Sport Pkg. uses either 255/40R19 or 255/35R20 depending on the wheel setup on the car.

That means the first step is not simply choosing a tire brand, but confirming the exact sub-model and wheel diameter. The 18-, 19-, and 20-inch fitments are separate applications, so a buyer should check the wheel itself, the tire size already mounted, and the overall vehicle setup before selecting a replacement.

A 2013 Mercedes-Benz CL550 uses 18-inch, 19-inch, or 20-inch rims depending on configuration. The 4Matic uses an 18-inch rim with 255/45R18 tires, while the 4Matic w/Sport Pkg. uses either 19-inch rims with 255/40R19 tires or 20-inch rims with 255/35R20 tires.

Rim diameter is the most important checkpoint because each of these tire sizes is built for a different wheel diameter. A 19-inch tire cannot be mounted on an 18-inch rim, and a 20-inch fitment should not be assumed just because the section width matches. Verifying the wheel before purchase prevents the most basic fitment mismatch.

The 2013 Mercedes-Benz CL550 has more than one tire size because fitment changes by sub-model and wheel package. The standard 4Matic uses 255/45R18, while the 4Matic w/Sport Pkg. uses larger-diameter wheel fitments in 255/40R19 and 255/35R20.

Even though all three sizes share a similar overall tire diameter, they are not the same application. The practical takeaway is to confirm whether the car is a standard 4Matic or a 4Matic w/Sport Pkg., then verify the actual wheel diameter on the vehicle, especially if it has ever been fitted with replacement wheels.

For a 2013 Mercedes-Benz CL550 using 255/45R18, the main considerations are confirming the 18-inch wheel setup, staying within the tire's intended rim-width range, and deciding what kind of road-use character and appearance the car needs. This size is offered in several radial series from BFGoodrich, Nitto, and Pro-Trac.

Sidewall treatment is another real decision point because this size is available in blackwall, RWL, and redline form. Buyers comparing products should also look at details such as published load figures, weight, and tire series differences, then match those characteristics to whether the CL550 is driven regularly, shown occasionally, or used mainly for fair-weather touring.

Tires for the 2013 Mercedes-Benz CL550 are available with blackwall, RWL, and redline sidewall styles, depending on the size and product chosen. Blackwall is the most common presentation across the BFGoodrich and Nitto options, while certain Pro-Trac Street Pro III tires add raised white letter and redline alternatives.

That sidewall choice can noticeably change the visual tone of the car even when the tire size stays the same. A buyer focused on a restrained modern look may lean toward blackwall, while someone wanting a more custom or muscle-inspired presentation may prefer RWL or redline. The right choice still starts with matching the correct wheel diameter and tire size.

The 2013 Mercedes-Benz CL550 has tire options from BFGoodrich, Nitto, and Pro-Trac across its 18-inch, 19-inch, and 20-inch fitments. BFGoodrich appears in multiple g-Force series, Nitto is represented by the NT555 G2, and Pro-Trac offers Street Pro III choices in selected sidewall styles.

Brand alone should not be the only filter when choosing among them. It helps to compare the exact size, tire series, sidewall style, and any published specifications such as rim-width compatibility, weight, or load details. That approach keeps the focus on selecting a tire that suits the CL550's actual wheel setup and intended use.

On the 2013 Mercedes-Benz CL550, primary fitment remains in modern radial construction, so the visual effect comes less from bias-ply versus radial differences and more from the overall tire profile and sidewall treatment. The available sizes keep a low-profile, contemporary look that suits the CL's late-model luxury performance character.

Appearance changes more noticeably when comparing blackwall, RWL, and redline versions within the same size. A buyer trying to preserve a clean, understated presentation may prefer blackwall, while a more customized look can come from the Pro-Trac alternatives. Matching the exact wheel diameter and profile remains essential so the car's proportions stay consistent.

Correct tire fitment matters on a 2013 Mercedes-Benz CL550 because the car's visual balance depends heavily on keeping the intended relationship between wheel diameter, sidewall height, and body proportions. Using the correct 18-, 19-, or 20-inch fitment helps preserve the car's designed stance and avoids a mismatched modernized look.

For a preservation-minded project, the most useful starting point is the exact sub-model and wheel package already on the car. Once that is confirmed, sidewall style and tire series become appearance choices rather than fitment guesses. Buyers seeking strict originality should also compare their car against marque-specific documentation and the wheels currently installed.

Yes, modifications can affect tire fitment on a 2013 Mercedes-Benz CL550 even when the tire size matches one of the correct factory-style applications. Aftermarket wheels, altered offsets, suspension changes, lowering, or body modifications can all change the space available around the tire and influence how an 18-, 19-, or 20-inch setup sits on the car.

A CL550 with non-original wheels should be checked for actual wheel width, diameter, and clearance before replacement tires are chosen. Tire size alone does not tell the whole story once the original setup has changed. Looking at inner clearance, fender clearance, and steering movement helps avoid rubbing or mismatch problems after installation.

Before driving a 2013 Mercedes-Benz CL550 on new tires, inspect the wheels for correct diameter and condition, confirm the tires are the same size as the intended fitment, and make sure inflation is set appropriately for the installation. It also helps to look over valve stems, wheel hardware, and overall tire seating on the rim.

A short road test should include attention to vibration, pull, rubbing, or any sign that the tire is not clearing the suspension or bodywork cleanly. On a heavy luxury coupe, uneven wear patterns can also point to alignment or suspension issues that new tires will not correct by themselves, so those systems are worth checking early.

Tires on a 2013 Mercedes-Benz CL550 should be inspected regularly, especially if the car is driven infrequently or spends long periods parked. Check for air loss, uneven wear, sidewall cracking, cuts, punctures, or bulges, and pay attention to how the car feels on the road because vibration or drift can signal a developing problem.

A good habit is to inspect the tires visually before longer drives and to monitor pressure on a routine schedule rather than waiting for obvious trouble. Cars that sit for extended periods can age tires without adding much mileage, so condition matters just as much as tread depth when deciding whether the CL550 is ready for road use.