The 2004 Mercedes-Benz CL500 sits in an era when the CL-Class blended grand touring comfort with coupe proportions and substantial V8 luxury. It is a highly refined car, but tire choice still starts with exact configuration rather than broad model assumptions. The 2004 Mercedes-Benz CL500 uses radial tire fitments, with 225/55R17 on the Base model and 18-inch sizes for AMG Sport Package and Appearance Package applications. That means the decision is less about vintage construction and more about matching the correct size, wheel diameter, and intended look, whether that points to a conventional blackwall performance radial or a more appearance-driven whitewall or redline option.
Which Tire Size Is Right for The 2004 Mercedes-Benz CL500
Three primary tire sizes apply to the 2004 Mercedes-Benz CL500, and they are tied to specific sub-model configurations rather than one universal fitment. The first step is confirming whether the car is a Base model, an Appearance Package car, or an AMG Sport Package setup, then verifying whether it uses 17-inch or 18-inch wheels before selecting among the available radial tire choices.
225/55R17 is a metric radial size in which 225 identifies nominal section width in millimeters, 55 is the aspect ratio, R denotes radial construction, and 17 is the wheel diameter in inches. On the 2004 Mercedes-Benz CL500, this size is used on the Base model and keeps the fitment on a 17-inch rim. Available choices include BFGoodrich options in the g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Silvertown Radial series, with blackwall, wide whitewall, and redline sidewall treatments. It is the right place to start for owners keeping the standard wheel setup while deciding between a modern performance look and a more distinctive appearance.
Fit(s): w/AMG Sport Pkg. Front and w/Appearance Pkg.
Construction: Radial|Rim: 18 in
245/45R18 is a metric radial size with a 245-millimeter nominal section width, a 45-series profile, radial construction, and an 18-inch rim diameter. This size applies to the 2004 Mercedes-Benz CL500 with the Appearance Package and to the front position on AMG Sport Package applications, so it should not be treated as a universal fitment for every CL500. Product choices in this size come from BFGoodrich and Nitto, with blackwall sidewalls and several series including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. It is the key size to confirm when the car carries 18-inch wheels and a package-specific front or appearance-oriented setup.
265/40R18 is a metric radial size where 265 is the nominal section width in millimeters, 40 is the aspect ratio, R marks radial construction, and 18 indicates rim diameter. On the 2004 Mercedes-Benz CL500, this size is used at the rear of the AMG Sport Package configuration, making it part of a staggered 18-inch fitment rather than a standalone all-around size. The available product selection centers on BFGoodrich g-Force Phenom T/A in a blackwall presentation. It is the size to evaluate when preserving the wider rear-wheel setup and confirming that wheel width and rear clearances match the intended tire.
Sub-model fitment matters on the 2004 Mercedes-Benz CL500 because tire size changes with package and wheel setup. The Base model stays on a 17-inch fitment, while Appearance Package and AMG Sport Package versions move to 18-inch sizing, with the AMG setup also using a different rear tire size.
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2004 Mercedes-Benz CL500 Base
The 2004 Mercedes-Benz CL500 Base uses a 225/55R17 radial tire on a 17-inch wheel. That keeps tire selection focused on choosing among available radial series and sidewall treatments without sorting through staggered front-and-rear sizing.
The AMG Sport Package front fitment uses 245/45R18 radial tires on an 18-inch wheel. Tire selection here should stay tied to the front position and be matched carefully with the corresponding rear setup on staggered-wheel cars.
The AMG Sport Package rear fitment uses 265/40R18 radial tires on an 18-inch wheel. That wider rear size makes wheel-width verification especially important when replacing tires or checking a car that may have had aftermarket wheel changes.
The 2004 Mercedes-Benz CL500 with Appearance Package uses 245/45R18 radial tires. Owners choosing tires for this package should confirm the 18-inch wheel setup first, then compare the available blackwall radial options in the correct size.
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 2004 Mercedes-Benz CL500 Tires for Sale
Available 2004 Mercedes-Benz CL500 tires center on radial fitments in 225/55R17, 245/45R18, and 265/40R18. Choices vary by brand, tire series, and sidewall treatment, with BFGoodrich covering all three sizes, Nitto appearing in 245/45R18, and whitewall or redline styling available in select 17-inch options.
Common 2004 Mercedes-Benz CL500 tire questions usually come down to exact size by sub-model, 17-inch versus 18-inch wheel fitment, available radial tire choices, and what to inspect before putting a low-use luxury coupe back on the road.
Tire Size & Fitment
What tire size fits a 2004 Mercedes-Benz CL500?
The 2004 Mercedes-Benz CL500 uses three different radial tire sizes depending on configuration: 225/55R17, 245/45R18, and 265/40R18. The Base model uses 225/55R17, the Appearance Package uses 245/45R18, and the AMG Sport Package uses 245/45R18 in front with 265/40R18 in the rear.
That means tire selection starts with confirming the exact version of the car and the wheel setup already on it. A CL500 with 17-inch wheels calls for a different size than an 18-inch package car, and the AMG Sport Package also requires attention to front-versus-rear fitment instead of assuming the same tire belongs at all four corners.
What size rim does a 2004 Mercedes-Benz CL500 use?
A 2004 Mercedes-Benz CL500 uses either a 17-inch or 18-inch rim, depending on the sub-model and package. The 225/55R17 fitment uses a 17-inch wheel, while both 245/45R18 and 265/40R18 use 18-inch wheels.
Wheel diameter should be confirmed before ordering tires, especially on a car that may have changed hands or received wheel upgrades over the years. Looking only at the model badge is not enough, because the CL500 spans both 17-inch and 18-inch fitments and package-specific cars may use a staggered arrangement that affects front and rear tire selection.
Do all 2004 Mercedes-Benz CL500 sub-models use the same tire size?
No. The 2004 Mercedes-Benz CL500 does not use one universal tire size across all sub-models. The Base model uses 225/55R17, the Appearance Package uses 245/45R18, and the AMG Sport Package uses 245/45R18 front and 265/40R18 rear.
That variation matters because package and wheel setup determine the correct fitment. A buyer looking at replacement tires should confirm the sub-model, inspect the current wheel diameter, and check whether the car uses the same size at all four corners or a staggered front-and-rear combination before comparing brands, series, or sidewall appearance.
Choosing the Right Tire
What should I consider when choosing a tire for a 2004 Mercedes-Benz CL500?
Start with the exact tire size that matches the car's configuration: 225/55R17 for the Base model, 245/45R18 for the Appearance Package, or the AMG Sport Package's 245/45R18 front and 265/40R18 rear setup. From there, compare radial tire series, sidewall styling, rim-width compatibility, and load figures where they are available.
The right choice depends on how the CL500 is used and how the owner wants it to present. Some buyers may prefer a straightforward blackwall performance radial, while others may be drawn to a more distinctive wide whitewall or redline look in the 17-inch size. Wheel setup and intended appearance should guide the final comparison.
What sidewall styles are available for 2004 Mercedes-Benz CL500 tires?
Sidewall style depends on tire size. Blackwall options are available across all three CL500 fitments, while the 225/55R17 size also offers more appearance-driven choices including a wide whitewall and a redline sidewall.
That gives Base model owners the broadest visual range, especially if the goal is something other than a contemporary performance look. On 18-inch fitments, the selection stays focused on blackwall radials, so appearance choice there comes more from tire series and brand than from contrasting sidewall treatments.
What brands offer tires for the 2004 Mercedes-Benz CL500?
BFGoodrich covers all of the primary 2004 Mercedes-Benz CL500 tire sizes, including 225/55R17, 245/45R18, and 265/40R18. Nitto also offers a 245/45R18 option, which applies to the Appearance Package and the front fitment on AMG Sport Package cars.
Brand choice should be considered alongside the exact size, wheel diameter, and product character rather than treated as a separate decision. BFGoodrich brings the widest spread of series and sidewall treatments, while Nitto adds another blackwall radial choice in one 18-inch application. Matching the brand to the correct fitment remains the first priority.
Restoration & Appearance
Which tire should I choose for a period-style 2004 Mercedes-Benz CL500?
A period-style 2004 Mercedes-Benz CL500 tire choice starts with preserving the exact size and wheel diameter used by the car's configuration. For the Base model, 225/55R17 offers the most appearance flexibility, including blackwall, wide whitewall, and redline options, while 18-inch package cars stay within blackwall radial choices.
The best visual match depends on whether the goal is a restrained original-era luxury coupe look or something with more custom presence. Size accuracy should come first, then sidewall treatment and tire series. When exact historical authenticity matters, marque-specific references and vehicle history can help settle appearance details beyond basic fitment.
How does tire construction affect the appearance of a restored 2004 Mercedes-Benz CL500?
On the 2004 Mercedes-Benz CL500, the primary fitments are radial across all listed sizes, so construction choice is not a bias-ply-versus-radial decision. Appearance differences come more from sidewall presentation and tire series, especially in 225/55R17 where blackwall, wide whitewall, and redline treatments are available.
That means a restored or carefully presented CL500 can change character noticeably even while staying within the correct radial size. A blackwall typically keeps a cleaner late-model luxury look, while a whitewall or redline creates a more stylized presentation. Wheel diameter and package-specific sizing still need to remain correct for the car.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2004 Mercedes-Benz CL500?
Yes. Modifications can affect tire fitment on a 2004 Mercedes-Benz CL500 even when the tire size sounds correct on paper. Aftermarket wheels, altered wheel widths, suspension changes, or body and fender modifications can all change the space available for a 225/55R17, 245/45R18, or 265/40R18 tire.
A careful check should include actual wheel diameter, wheel width, and whether the car remains on its original front-and-rear arrangement. The AMG Sport Package fitment deserves extra attention because it uses different front and rear sizes. Steering clearance and inner-fender space are worth verifying before installing replacement tires on a modified car.
What should I inspect before driving a 2004 Mercedes-Benz CL500 on new tires?
Before driving a 2004 Mercedes-Benz CL500 on new tires, inspect the wheels for correct diameter and condition, confirm that all four tires match the intended fitment pattern, and set inflation pressure to the vehicle's required specification. It also helps to look over suspension and steering components if the car has been sitting or used infrequently.
A short collector-car shakedown should include checking for air loss, vibration, rubbing, and any sign that front and rear sizes were mixed incorrectly on staggered applications. The CL500 is a heavy luxury coupe, so stable road manners depend on proper fitment as much as on fresh rubber. Rechecking pressure after the first few drives is wise.
How should tires on a collector 2004 Mercedes-Benz CL500 be maintained?
Tires on a collector 2004 Mercedes-Benz CL500 should be inspected regularly for air loss, sidewall cracking, bulges, cuts, and uneven tread wear, even if the car sees limited mileage. Proper inflation and clean, dry storage away from prolonged sunlight and ozone sources help preserve the tire's condition between drives.
Low annual mileage can hide tire aging, so condition matters at least as much as tread depth on a garage-kept CL500. Cars with staggered 18-inch fitments should also be checked to make sure front and rear sizes remain in their correct positions. Any sign of rubbing, vibration, or repeated pressure loss deserves attention before road use.
