The 2009 Mercedes-Benz CL600 sits in the grand touring end of the modern Mercedes-Benz lineup, combining coupe styling with the long-wheelbase, high-speed luxury character expected of the CL-Class. Tire selection on this car is centered on a staggered radial setup, with 255-width front sizes and 275-width rear sizes offered in either 18-inch or 19-inch fitments. That makes the real decision less about vintage construction choices and more about confirming wheel diameter, matching front and rear sizes correctly, and choosing among blackwall, redline, or raised white letter offerings where available. For road use, appearance, and handling balance, the wheel setup on the car should be verified before selecting tires.
Which Tire Size Is Right for The 2009 Mercedes-Benz CL600
The 2009 Mercedes-Benz CL600 uses four primary tire sizes because fitment is split by axle position and by 18-inch versus 19-inch wheel diameter. Front tires are 255-width and rear tires are 275-width, so the first step is confirming both the wheel diameter on the car and whether you are selecting a front or rear tire before comparing product options.
The 255/40R19 size is a metric radial format: 255 is the nominal section width in millimeters, 40 is the aspect ratio, R identifies radial construction, and 19 is the wheel diameter in inches. On the 2009 Mercedes-Benz CL600, this is a front fitment for the 19-inch wheel setup. Available choices include BFGoodrich and Pro-Trac tires in blackwall, redline, and raised white letter form, with series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Street Pro III. This size matters when maintaining the intended front stagger and matching a 19-inch wheel package correctly.
The 255/45R18 size uses a modern metric radial naming system, with a 255-millimeter nominal width, a 45-series profile, radial construction, and an 18-inch rim diameter. For the 2009 Mercedes-Benz CL600, it serves as a front tire size on the 18-inch setup. Product choices include BFGoodrich, Nitto, and Pro-Trac offerings, with blackwall, redline, and raised white letter sidewall styles represented across several series. This is the size to evaluate when the car carries 18-inch front wheels and the goal is to preserve the proper front-to-rear stagger.
The 275/40R19 code indicates a 275-millimeter nominal section width, a 40-series profile, radial construction, and a 19-inch wheel diameter. On the 2009 Mercedes-Benz CL600, this size is used at the rear with the 19-inch wheel combination. BFGoodrich and Nitto products are available here, primarily in blackwall form, with series including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. Choosing this size correctly is important for maintaining the rear portion of the staggered setup rather than mixing a front tire size onto the back of the car.
The 275/45R18 size follows the same metric radial system, combining a 275-millimeter nominal width with a 45-series profile on an 18-inch rim. For the 2009 Mercedes-Benz CL600, this is the rear tire size used with the 18-inch wheel arrangement. The available product here is an M&H Racemaster radial drag rear in blackwall form, which makes this a much more specialized choice than the broader front tire selections. This size should be evaluated carefully against the car's actual rear wheel setup and intended driving use before making a selection.
Sub-model fitment on the 2009 Mercedes-Benz CL600 is straightforward in name but important in function, because the car uses separate front and rear tire sizes. The key is identifying whether you are replacing the front axle tires or the rear axle tires, then matching that position to the correct 18-inch or 19-inch wheel diameter.
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2009 Mercedes-Benz CL600 Base Front
The Base Front fitment uses a 255-width radial tire, with one size tied to the 19-inch setup and another tied to the 18-inch setup. Tire selection here starts with wheel diameter confirmation, then moves to comparing sidewall style, brand, and series options within the correct front size.
The Base Rear fitment uses a wider 275-width radial tire, again split between 19-inch and 18-inch wheel packages. That rear stagger is an important part of the vehicle's setup, so the correct rear size should be matched to the wheel on the car rather than chosen by width alone.
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 2009 Mercedes-Benz CL600 Tires for Sale
Available 2009 Mercedes-Benz CL600 tire choices focus on radial construction across BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster lines. Depending on size, buyers can compare blackwall, redline, and raised white letter styles along with series such as g-Force, NT555 G2, Street Pro III, and Drag Radial.
These FAQs focus on the staggered tire setup used on the 2009 Mercedes-Benz CL600, including front and rear size differences, 18-inch versus 19-inch wheel fitment, product-selection factors, and the checks worth making before road use.
Tire Size & Fitment
What tire size fits a 2009 Mercedes-Benz CL600?
The 2009 Mercedes-Benz CL600 uses four primary radial tire sizes: 255/40R19 and 255/45R18 at the front, plus 275/40R19 and 275/45R18 at the rear. The correct choice depends on two things: whether the tire is for the front or rear axle, and whether the car has 18-inch or 19-inch wheels.
That means there is not one universal tire size for every CL600. A front tire should be matched to the front wheel setup, and a rear tire should be matched to the rear. Before ordering, check the wheel diameter stamped on the wheel or confirm the current tire size on the car so the staggered fitment stays consistent.
What size rim does a 2009 Mercedes-Benz CL600 use?
The 2009 Mercedes-Benz CL600 uses either 18-inch or 19-inch rims, depending on the tire and wheel setup on the car. The 255/45R18 front and 275/45R18 rear sizes are for 18-inch wheels, while the 255/40R19 front and 275/40R19 rear sizes are for 19-inch wheels.
Wheel diameter is the first fitment point to verify because the tire must match the rim exactly. After that, axle position still matters because the car uses narrower front tires and wider rear tires. Looking at both the wheel diameter and the existing front or rear size helps avoid mixing the wrong tire onto the wrong end of the car.
Why does the 2009 Mercedes-Benz CL600 have more than one tire size?
The 2009 Mercedes-Benz CL600 has more than one tire size because it uses a staggered fitment and appears with two wheel-diameter combinations. Front tires are 255-width and rear tires are 275-width, with each axle offered in both an 18-inch and a 19-inch version.
That staggered layout means the front and rear are not interchangeable, even when the overall tire dimensions are close. The practical step is to identify the wheel package on the car first, then replace front tires with the correct front size and rear tires with the correct rear size. That keeps the fitment aligned with the wheel and axle position already in use.
Choosing the Right Tire
What should I consider when choosing a tire for a 2009 Mercedes-Benz CL600?
Start with the basics: front versus rear position, 18-inch versus 19-inch wheel diameter, and the exact radial size already used on the car. The CL600 does not use one all-around size, so choosing correctly means matching the tire to both the axle and the wheel rather than selecting by width alone.
After size is confirmed, compare the available tire series, sidewall appearance, rim-width specifications, and any load figures shown for the products in that size. Blackwall, redline, and raised white letter styles are available in some fitments, which can matter if appearance is part of the decision. Intended use also matters, especially where the rear size has a more specialized product offering.
What sidewall styles are available for 2009 Mercedes-Benz CL600 tires?
Sidewall choices for the 2009 Mercedes-Benz CL600 include blackwall across all four primary sizes, with redline and raised white letter options available in some front sizes. The 255/40R19 and 255/45R18 fitments have the broadest sidewall variety, while the rear choices are more limited in presentation.
That makes sidewall style a real selection factor once the correct size is established. Blackwall keeps the appearance understated and modern, while redline or raised white letter options create a more customized look. The key is to treat sidewall treatment as a style choice within the proper size, not as a substitute for confirming wheel diameter or axle position.
What brands offer tires for the 2009 Mercedes-Benz CL600?
Tires for the 2009 Mercedes-Benz CL600 are available from BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster, depending on the size. BFGoodrich appears across several front and rear applications, Nitto is present in selected sizes, Pro-Trac adds sidewall-style variety in front sizes, and M&H Racemaster covers the 275/45R18 rear fitment.
Brand choice should come after the correct size is confirmed, because not every brand appears in every CL600 fitment. It also helps to compare series within a brand, since the product mix includes g-Force, NT555 G2, Street Pro III, and Drag Radial offerings. Looking at size-specific choices gives a clearer picture than choosing a brand first and trying to force the fitment afterward.
Restoration & Appearance
How does tire construction affect the appearance of a 2009 Mercedes-Benz CL600?
Tire construction is less of a vintage-style question on the 2009 Mercedes-Benz CL600 because the primary fitments are radial across all four sizes. The bigger appearance difference comes from sidewall treatment and tread-era character within the correct radial size, especially where blackwall, redline, and raised white letter options are available.
That means the visual tone of the car can shift without changing away from the intended radial format. A blackwall tire keeps a more restrained luxury-performance look, while redline or raised white letter sidewalls create a more customized presentation. Appearance choices should still be made only after confirming whether the car uses the 18-inch or 19-inch staggered setup.
Does correct tire fitment matter for a 2009 Mercedes-Benz CL600 restoration or preservation project?
Correct tire fitment matters on a 2009 Mercedes-Benz CL600 because the car uses different front and rear widths along with two possible wheel diameters. Even on a preservation-minded car, maintaining the proper staggered relationship is part of keeping the vehicle's overall stance and wheel-to-tire balance consistent with its intended setup.
For an owner focused on appearance, the most useful approach is to begin with the exact size already matched to the wheel and axle, then choose among available brands, series, and sidewall styles. If originality details are especially important, period sales literature, marque specialists, and vehicle-specific documentation are the right references for confirming how a particular car was delivered.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Mercedes-Benz CL600?
Yes. Modifications can affect tire fitment on a 2009 Mercedes-Benz CL600, especially if the car has aftermarket wheels, altered suspension height, or changes in wheel width or offset. Because the CL600 uses a staggered setup with separate front and rear sizes, even a small change in wheel specification can affect which tire size remains appropriate.
A modified car should be checked for wheel diameter, wheel width, and clearance at both steering lock and normal ride height before a replacement tire is chosen. Front and rear should be measured as separate fitment positions rather than assumed to match. That extra verification is particularly important when moving between the 18-inch and 19-inch fitment groups.
What should I inspect before driving a 2009 Mercedes-Benz CL600 on new tires?
Before driving a 2009 Mercedes-Benz CL600 on new tires, inspect wheel condition, tire pressure, bead seating, valve stems, and visible clearance around the front and rear fitments. It also makes sense to confirm that the narrower front size and wider rear size were installed in the correct positions and that both tires on an axle match.
A short initial check after installation is worthwhile because any rubbing, vibration, or unexpected air loss should be caught early. Looking over suspension wear items and alignment condition is also helpful, since a large luxury coupe can be sensitive to irregular wear if something in the chassis is out of spec. A careful first road test is better than assuming everything is correct.
How often should tires on a 2009 Mercedes-Benz CL600 be inspected?
Tires on a 2009 Mercedes-Benz CL600 should be inspected regularly for pressure loss, tread wear, cuts, bulges, and sidewall aging, especially if the car is driven infrequently. A grand touring coupe that spends long periods parked can develop condition issues that are easy to miss because mileage stays low while the tires continue to age.
Routine visual checks before driving and more complete inspections at service intervals are a sensible pattern. Attention should be paid to both axles separately because the front and rear sizes differ, and wear patterns may not match. Cars stored for extended periods also benefit from proper inflation and protection from prolonged heat, sunlight, and ozone exposure.
