The 2009 Mercedes-Benz SL600 sits in the later hardtop-roadster era of the SL, combining grand touring comfort with the kind of power and high-speed character that makes tire fitment especially important. On this car, the tire decision starts with the wheel package, because front and rear sizes differ and the SL600 uses either an 18-inch or 19-inch radial setup. Front fitment is 255-section and rear fitment is 285-section, with modern metric radial sizing throughout. Available choices focus less on vintage appearance and more on selecting the right series, load-capable performance tire, and matching the exact wheel diameter already on the car.
Which Tire Size Is Right for The 2009 Mercedes-Benz SL600
The 2009 Mercedes-Benz SL600 uses four primary tire sizes across a staggered front-and-rear setup, and the first thing to confirm is whether the car is on 18-inch wheels or 19-inch wheels. Once wheel diameter is established, the next step is matching the correct front and rear sizes, since this SL600 does not use the same tire size at all four corners.
A 255/35R19 tire is a modern metric radial size with a 255-millimeter section width, a 35-series profile, and a 19-inch rim diameter. On the 2009 Mercedes-Benz SL600, this size is used at the front in the 19-inch setup, where maintaining the intended front-to-rear stagger matters. Available choices in this size center on BFGoodrich blackwall radial performance tires, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. This is the size to evaluate when the car already wears 19-inch front wheels and the goal is preserving the correct front fitment relationship.
A 255/40R18 tire uses the same 255-millimeter nominal width as the 19-inch front option, but with a 40-series profile built for an 18-inch rim. On the 2009 Mercedes-Benz SL600, this is the front size for the 18-inch wheel package, so it should be selected only after confirming wheel diameter. BFGoodrich offers this size in blackwall radial form across the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines. It is the relevant front fitment when the car is equipped with 18-inch wheels and the owner wants to keep the proper staggered setup.
A 285/30R19 tire is a wide modern metric radial with a 285-millimeter section width, a 30-series profile, and a 19-inch rim diameter. On the 2009 Mercedes-Benz SL600, this size belongs at the rear in the 19-inch configuration, where it works as part of the car's staggered front-and-rear fitment rather than as a universal four-corner size. The key role of this size is maintaining the proper rear tire position for a 19-inch SL600 setup. Buyers should confirm that the rear wheels are 19-inch and that the car has not been altered from its intended wheel-and-tire arrangement.
A 285/35R18 tire carries a 285-millimeter section width, a 35-series profile, and fits an 18-inch rim. This is the rear tire size for the 18-inch 2009 Mercedes-Benz SL600 setup, so it should be paired with the matching 18-inch front fitment rather than mixed with the 19-inch front arrangement. In the available product selection, this size appears as a Nitto NT555 G2 blackwall radial. It is the correct rear size to review when the SL600 is on 18-inch wheels and the owner is confirming a proper staggered front-and-rear combination.
Sub-model fitment on the 2009 Mercedes-Benz SL600 is straightforward in layout but still requires attention, because the covered positions are split into front and rear sizes. The main thing to verify is whether the car has the 18-inch or 19-inch wheel setup before selecting either position's tire.
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2009 Mercedes-Benz SL600 Base Front
The 2009 Mercedes-Benz SL600 Base Front uses a 255-section radial tire, with either 255/35R19 or 255/40R18 depending on wheel diameter. Front tire selection should follow the exact wheel size already on the car so the staggered setup remains properly matched to the rear.
The 2009 Mercedes-Benz SL600 Base Rear uses a wider 285-section radial tire, with either 285/30R19 or 285/35R18 depending on the wheel package. Rear tire choice should be made only after confirming the rear wheel diameter and pairing it with the matching front size for the same setup.
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 SL600 Tires for Sale
Available SL600 tire choices focus on modern blackwall radial performance tires. Front sizes are offered in several BFGoodrich g-Force series, while the 285/35R18 rear size is available in the Nitto NT555 G2, making wheel diameter and front-to-rear pairing the key comparison points.
These FAQs focus on the exact tire sizes used on the 2009 Mercedes-Benz SL600, including staggered front-and-rear fitment, 18-inch versus 19-inch wheel setups, product selection, and the checks worth making before road use.
Tire Size & Fitment
What tire size fits a 2009 Mercedes-Benz SL600?
The 2009 Mercedes-Benz SL600 uses a staggered radial setup rather than one tire size at all four corners. Front fitment is either 255/35R19 or 255/40R18, while rear fitment is either 285/30R19 or 285/35R18, depending on whether the car is equipped with 19-inch or 18-inch wheels.
The important step is confirming the wheel diameter already on the car and then matching both front and rear sizes within that same package. Mixing an 18-inch fitment at one end with a 19-inch fitment at the other can create an unintended setup, especially on a grand touring car that relies on a proper staggered tire arrangement.
What size rim does a 2009 Mercedes-Benz SL600 use?
A 2009 Mercedes-Benz SL600 uses either 18-inch or 19-inch rims, depending on the wheel setup. The 255/40R18 front and 285/35R18 rear sizes belong to the 18-inch package, while the 255/35R19 front and 285/30R19 rear sizes belong to the 19-inch package.
Wheel diameter should be verified before choosing tires, especially if the car has changed hands or has aftermarket wheels. Checking the current wheel markings and confirming the front and rear diameters match the intended package helps avoid ordering the right width tire in the wrong rim diameter.
Why does the 2009 Mercedes-Benz SL600 have more than one tire size?
The 2009 Mercedes-Benz SL600 has more than one tire size because it uses a staggered setup with different front and rear tire widths, and it was fitted with either an 18-inch or 19-inch wheel package. That creates four total fitment sizes across the two wheel-diameter combinations.
The front tires are narrower 255-section sizes, while the rear tires are wider 285-section sizes, so tire selection is not just about width or profile alone. Identifying the wheel package first keeps the front and rear pairings correct and helps preserve the intended balance of the car's handling and appearance.
Choosing the Right Tire
What should I consider when choosing tires for a 2009 Mercedes-Benz SL600?
Start by confirming whether the SL600 is on 18-inch or 19-inch wheels, then match the correct front and rear sizes within that package. Since this car uses radial tires in a staggered layout, the core decision is choosing the right size pair first and then comparing tire series, load-related specifications, and intended road use.
Available choices also vary by brand and product line depending on size. BFGoodrich g-Force options cover the front fitments shown here, while the 285/35R18 rear fitment appears in the Nitto NT555 G2, so comparing series character, rim-width compatibility, and how the car is actually driven will matter more than choosing by size name alone.
What sidewall styles are available for 2009 Mercedes-Benz SL600 tires?
The available tires for the 2009 Mercedes-Benz SL600 shown here use blackwall sidewalls. That gives the car a clean modern performance appearance that suits the SL600's later-generation grand touring character rather than a vintage or restoration-oriented sidewall treatment.
Because the visible sidewall style remains consistent, the more meaningful differences come from tire series, size, and wheel package. Buyers who are comparing options should focus on selecting the correct front and rear fitment first, then use the product details to sort through construction specs, rim-width range, and other practical differences.
What brands offer tires for the 2009 Mercedes-Benz SL600?
The available tire options for the 2009 Mercedes-Benz SL600 include BFGoodrich and Nitto. BFGoodrich appears in the front fitments with several g-Force series choices, while Nitto is represented in the 285/35R18 rear fitment with the NT555 G2.
Brand should be considered alongside the exact size position on the car, because not every size has the same assortment. It helps to narrow the search by wheel diameter and whether the tire is for the front or rear axle, then compare series characteristics and fitment specs within the choices available for that specific position.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Mercedes-Benz SL600?
A period-style approach on a 2009 Mercedes-Benz SL600 usually means keeping the proper staggered radial fitment and staying with the wheel diameter already on the car, either the 18-inch or 19-inch package. Since this SL600 belongs to a modern performance-luxury era, the correct size relationship is more important than pursuing an older-style construction or sidewall look.
A good appearance-focused choice starts with the exact front and rear sizes for the existing wheels, then compares the available blackwall performance series in those sizes. Keeping the car visually consistent from axle to axle matters, especially on a retractable-hardtop SL where wheel-and-tire proportion strongly affects the overall presentation.
Does correct tire fitment matter for a 2009 Mercedes-Benz SL600 restoration?
Correct tire fitment matters on a 2009 Mercedes-Benz SL600 because the car uses a staggered front-and-rear arrangement, and the wheel package determines whether it needs 18-inch or 19-inch tires. Preserving that relationship helps keep the car's stance and overall look in line with the way this generation of SL was intended to sit.
A restoration-minded owner should confirm the actual wheels on the car before selecting tires, especially if the vehicle has had cosmetic updates over time. Even on a newer collector car, the wrong rim diameter or mismatched front and rear sizing can change the appearance immediately and complicate future fitment decisions.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Mercedes-Benz SL600?
Yes, modifications can affect tire fitment on a 2009 Mercedes-Benz SL600. Aftermarket wheels, suspension changes, altered ride height, or body modifications can change the clearances that the factory-style staggered setup depends on, even when the tire size itself looks close to the original front or rear fitment.
A modified SL600 should be checked for actual wheel diameter, wheel width, and tire clearance at steering lock and through suspension travel before choosing replacements. That is especially important on a low-profile 18-inch or 19-inch setup, where small changes in wheel specification can have a noticeable effect on fitment.
What should I inspect before driving a 2009 Mercedes-Benz SL600 on new tires?
Before driving a 2009 Mercedes-Benz SL600 on new tires, inspect that the correct front and rear sizes were installed for the wheel package, verify inflation is set properly, and make sure there is no rubbing at the front steering range or rear suspension movement. Wheel condition and proper mounting also deserve a close look.
It also helps to check the car's alignment condition, especially if the previous tires showed uneven wear. A powerful grand touring roadster can be sensitive to setup issues, so confirming even seating, valve condition, lug torque, and stable air pressure gives the new tires a better chance to wear and behave as intended.
How often should tires on a 2009 Mercedes-Benz SL600 be inspected?
Tires on a 2009 Mercedes-Benz SL600 should be inspected regularly, especially because many SL models see seasonal use, limited mileage, or long storage periods. Pressure, tread wear, sidewall cracking, cuts, bulges, and any signs of slow air loss are all worth checking well before a longer drive.
Low annual mileage does not remove the need for inspection, since age and storage conditions can affect a tire even when tread depth still looks strong. A quick routine check before driving, plus a more thorough inspection at service intervals, helps catch problems early on a staggered high-performance setup.
