The 2009 Mercedes-Benz S600 sits at the top of the W221-era S-Class range, pairing flagship luxury with the kind of power and weight that make tire selection more than a cosmetic decision. On this car, fitment centers on staggered radial sizes, with either an 18-inch setup in 255/45R18 front and 275/45R18 rear or a Sport Package 19-inch setup in 255/40R19 front and 275/40R19 rear. That means the real choice is not just brand, but wheel diameter, front-to-rear pairing, and the look of blackwall, raised white letter, or redline sidewalls where available. Matching the car's exact wheel package is the starting point before comparing tire series or appearance.
Which Tire Size Is Right for The 2009 Mercedes-Benz S600
The 2009 Mercedes-Benz S600 uses four primary tire sizes, split between front and rear positions and between 18-inch and 19-inch wheel packages. The first step is confirming whether the car has the standard staggered 18-inch setup or the staggered 19-inch Sport Package setup, because both rim diameter and front-to-rear sizing change together. Once that is established, the decision becomes comparing radial tire series, sidewall presentation, and wheel-width compatibility within the correct size.
255/45R18 is a metric radial size in which 255 refers to the nominal section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 18 is the rim diameter in inches. On the 2009 Mercedes-Benz S600, this is the front size for the 18-inch staggered setup. Available choices include BFGoodrich, Nitto, and Pro-Trac, with blackwall, RWL, and redline sidewall treatments depending on the tire series. This size is the one to evaluate when the car keeps its 18-inch front wheels and the goal is balancing fitment, appearance, and driving use.
275/45R18 is a metric radial size with a 275-millimeter nominal section width, a 45-series profile, radial construction, and an 18-inch rim diameter. On the 2009 Mercedes-Benz S600, it serves as the rear tire in the 18-inch staggered arrangement, so it should be considered as part of the full front-and-rear package rather than in isolation. The available option here is an M&H Racemaster radial in the Drag Radial series with a blackwall sidewall. This size matters when confirming rear-wheel fitment on an 18-inch car and comparing whether the intended use matches the tire's character.
255/40R19 is a metric radial size where 255 gives the nominal width in millimeters, 40 is the aspect ratio, R marks radial construction, and 19 is the wheel diameter in inches. On the 2009 Mercedes-Benz S600, this size is used at the front on cars equipped with the 19-inch Sport Package setup. Choices in this size include BFGoodrich and Pro-Trac offerings, with blackwall, RWL, and redline sidewall treatments across several tire series. It is the key front size to review when the car is already on 19-inch wheels and the owner wants to compare both appearance and tire-series differences.
275/40R19 is a metric radial size that uses a 275-millimeter nominal section width, a 40-series profile, radial construction, and a 19-inch rim diameter. For the 2009 Mercedes-Benz S600, this is the rear tire size paired with the 255/40R19 front on Sport Package cars, so correct staggered matching remains important. Available options include BFGoodrich and Nitto products in blackwall form across the g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 lines. This is the rear size to check when confirming a 19-inch setup and comparing series characteristics within the proper wheel format.
Sub-model fitment on the 2009 Mercedes-Benz S600 is tied directly to wheel package and axle position. Standard Base and Sport Package cars do not use the same sizes, so identifying both the package and whether the tire is for the front or rear is essential before choosing a replacement.
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2009 Mercedes-Benz S600 Base Front
The Base front position uses the 18-inch staggered setup's smaller-width front tire. That makes front-wheel diameter confirmation especially important before comparing blackwall, RWL, or redline options within the correct radial size.
The Base rear position uses a wider 18-inch radial than the front, reflecting the car's staggered fitment. Rear tire selection should stay matched to the front wheel package while also accounting for the specific character of the available rear-size product.
The Sport Package front position moves to a 19-inch radial with a lower profile than the standard 18-inch setup. Tire selection here starts with confirming the car retains its Sport Package wheels, then comparing sidewall style and tire series within that front size.
The Sport Package rear position uses the wider 19-inch rear tire that completes the staggered Sport setup. Choosing this size means keeping the rear matched to the 19-inch front arrangement and checking that wheel width and intended use align with the available radial options.
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 S600 Tires for Sale
Available 2009 Mercedes-Benz S600 tires are all radial and vary by wheel package, brand, tire series, and sidewall presentation. Depending on size, choices include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster, with blackwall, RWL, and redline styles appearing where applicable.
Owners of a 2009 Mercedes-Benz S600 usually need clarity on staggered sizing, 18-inch versus 19-inch wheel packages, front-to-rear fitment, and how available tire series and sidewall styles affect the final choice. The questions below focus on those exact decisions.
Tire Size & Fitment
What tire size fits a 2009 Mercedes-Benz S600?
The 2009 Mercedes-Benz S600 uses a staggered tire setup rather than one uniform size at all four corners. Base models use 255/45R18 in front and 275/45R18 in the rear, while Sport Package models use 255/40R19 in front and 275/40R19 in the rear.
That means the first step is identifying the car's wheel package and then confirming whether the tire being replaced is for the front or rear axle. Mixing 18-inch and 19-inch sizes, or using a front size on the rear, can create fitment and handling issues on a vehicle designed around a staggered arrangement.
What size rim does a 2009 Mercedes-Benz S600 use?
The 2009 Mercedes-Benz S600 uses either 18-inch or 19-inch rims, depending on configuration. The standard setup pairs 255/45R18 front and 275/45R18 rear on 18-inch wheels, while the Sport Package pairs 255/40R19 front and 275/40R19 rear on 19-inch wheels.
Wheel diameter should be confirmed before choosing a tire, especially on a car that may have had wheel changes over time. It also helps to verify wheel width against the tire being considered, since several available products include specific rim-width ranges that matter when matching the tire to the wheel correctly.
Why does the 2009 Mercedes-Benz S600 have more than one tire size?
More than one tire size applies because the 2009 Mercedes-Benz S600 uses staggered front and rear fitment, and the wheel package changes the sizing as well. One pair of sizes belongs to the 18-inch setup and another pair belongs to the 19-inch Sport Package setup.
This is common on high-performance luxury sedans where front and rear tires are not interchangeable. The practical takeaway is to identify both the axle position and the wheel diameter already on the car before comparing products, since a correct front tire can still be wrong if it belongs to the other wheel package.
Choosing the Right Tire
What should I consider when choosing a 255/45R18 tire for a 2009 Mercedes-Benz S600?
Start by confirming that the car uses the 18-inch standard front setup, because 255/45R18 is the front size for that arrangement. Then compare the available radial options by brand, tire series, sidewall style, and wheel-width compatibility, since choices in this size include blackwall, RWL, and redline presentations.
Selection should also reflect how the car is used and whether the owner wants a more understated or more distinctive appearance. A 255/45R18 front tire should be considered as part of the complete staggered setup, so the rear size and wheel package should remain consistent rather than treating the front tires as a stand-alone fitment.
What sidewall styles are available for 2009 Mercedes-Benz S600 tires?
Sidewall style depends on the tire size. Blackwall options appear across all four primary sizes, while RWL and redline choices are available in 255/45R18 and 255/40R19 through Pro-Trac Street Pro III products.
That makes sidewall selection partly a fitment question and partly an appearance question. Owners keeping a restrained, contemporary look may prefer blackwall, while RWL or redline can create a more customized presentation. The key is to choose the correct front or rear size first, then compare which sidewall styles exist within that exact fitment.
What brands offer tires for the 2009 Mercedes-Benz S600?
Available tire brands for the 2009 Mercedes-Benz S600 include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster. Brand availability varies by size, so the widest selection appears in some front and Sport Package sizes, while other sizes have much narrower product choice.
Brand should be compared along with tire series, sidewall treatment, and wheel compatibility rather than treated as the only decision point. On a staggered car like the S600, it is also worth checking whether the preferred front and rear tires create a sensible matched set within the correct 18-inch or 19-inch package.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Mercedes-Benz S600?
Yes, modifications can affect tire fitment on a 2009 Mercedes-Benz S600 even when the tire size itself looks correct. Aftermarket wheels, altered wheel width, offset changes, suspension lowering, or body modifications can all change how a 255/45R18, 275/45R18, 255/40R19, or 275/40R19 tire sits on the car.
A modified S600 should be checked for wheel diameter, wheel width, inner clearance, and fender clearance before new tires are chosen. Staggered front-to-rear fitment adds another layer, because the right size for one axle or one wheel package may still be wrong for the actual wheels currently installed on the vehicle.
What should I inspect before driving a 2009 Mercedes-Benz S600 on new tires?
Before road use, inspect the wheels for the correct diameter and visible damage, confirm that front and rear tires are installed in the proper positions, and verify inflation before driving. It is also smart to check for adequate clearance at full steering lock and under normal suspension movement.
A heavier luxury car like the S600 benefits from a careful once-over after installation. Recheck tire pressure, look for any sign of rubbing, and make sure the vehicle does not have worn suspension components that could affect tire wear or clearance. Those checks matter whether the car is on the 18-inch setup or the 19-inch Sport Package wheels.
How should tires on a 2009 Mercedes-Benz S600 be maintained?
Routine maintenance starts with keeping the tires properly inflated, inspecting tread and sidewalls regularly, and watching for cracking, cuts, bulges, or uneven wear. Because the 2009 Mercedes-Benz S600 uses staggered sizing, front-to-rear position should also be noted carefully during any service work.
Cars that are driven less often still need regular inspections, since age and storage conditions can affect tire condition even when tread looks acceptable. Checking pressure before longer drives, storing the car away from prolonged heat and ozone sources, and reviewing tire condition periodically all help support safe, predictable road use.
