The 2006 Mercedes-Benz S350 belongs to the W220 S-Class generation, a full-size luxury sedan built around quiet highway manners, substantial curb presence, and the kind of wheel-and-tire fitment that changes noticeably by configuration. This is not a one-size-fits-all application. Depending on sub-model, the 2006 Mercedes-Benz S350 uses 225/55R17, 245/45R18, or a staggered 18-inch setup with 245/45R18 front and 265/40R18 rear, all in radial construction. Available choices range from modern blackwall performance-oriented tires to Silvertown Radial options with wide whitewall or redline styling in 225/55R17. The right decision starts with confirming the exact sub-model and wheel diameter before comparing appearance, series, and road-use priorities.
Which Tire Size Is Right for The 2006 Mercedes-Benz S350
Three tire sizes apply to the 2006 Mercedes-Benz S350, and they do not all serve the same configuration. Fitment varies by sub-model and wheel package, with both 17-inch and 18-inch rim diameters in use, so the first step is identifying the exact sub-model and confirming whether the car has a standard or staggered wheel setup before selecting a tire.
Fit(s): 4Matic, w/AMG Sport Pkg. Front, and w/Appearance Pkg.
Construction: Radial|Rim: 18 in
In 245/45R18, the 245 is the nominal section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 18 is the wheel diameter in inches. This size serves certain 18-inch 2006 Mercedes-Benz S350 configurations, including 4Matic and package-equipped applications, and it should be matched to the correct wheel setup rather than assumed across the whole model line. Available choices include BFGoodrich and Nitto blackwall tires across g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 series. It is the size to evaluate when the car already carries 18-inch wheels and a front fitment in this range.
The size 225/55R17 uses a 225-millimeter nominal section width, a 55-series profile, radial construction, and a 17-inch wheel diameter. On the 2006 Mercedes-Benz S350, this size belongs to the Base configuration and represents the standard 17-inch fitment rather than the sport-oriented 18-inch package setup. Product choice is broader here, with blackwall performance-style options as well as BFGoodrich Silvertown Radial offerings in wide whitewall and redline sidewall treatments. This is the size to focus on when maintaining the original 17-inch wheel diameter or when appearance matters as much as everyday road use.
A 265/40R18 tire has a 265-millimeter nominal section width, a 40-series profile, radial construction, and an 18-inch rim diameter. On the 2006 Mercedes-Benz S350, this size is used as the rear tire on the staggered w/AMG Sport Pkg. setup, so it is tied to a specific package and position rather than a universal all-around fitment. The available product in this size is a BFGoodrich g-Force Phenom T/A blackwall radial, which keeps the choice focused on correct rear sizing and wheel compatibility. This size should be chosen only after confirming the car uses the staggered 18-inch sport package arrangement.
Sub-model fitment matters on the 2006 Mercedes-Benz S350 because wheel diameter and tire size change across the range. Some versions use a single 17-inch or 18-inch size, while the AMG Sport Package uses a staggered front-and-rear arrangement that must be matched correctly.
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2006 Mercedes-Benz S350 4Matic
The 2006 Mercedes-Benz S350 4Matic uses a 245/45R18 radial fitment. Tire selection centers on confirming the existing 18-inch wheel setup and then choosing among the available blackwall performance-oriented series that suit the car's intended road use.
The 2006 Mercedes-Benz S350 Base uses 225/55R17 radial tires on a 17-inch wheel diameter. That opens the door to either a modern blackwall presentation or a more restoration-inspired whitewall or redline look without changing the primary tire size.
The front tire on the 2006 Mercedes-Benz S350 w/AMG Sport Pkg. is 245/45R18 in radial construction. Selection should stay focused on the front axle position and be paired with the correct rear size so the staggered package remains properly matched.
The rear tire on the 2006 Mercedes-Benz S350 w/AMG Sport Pkg. is 265/40R18, also in radial construction. That means the rear fitment is not interchangeable with the front, and wheel width plus rear-position sizing should be confirmed before replacement.
The 2006 Mercedes-Benz S350 w/Appearance Pkg. uses 245/45R18 radial tires. The main decision here is not the basic size itself, but which blackwall tire series best matches the car's wheel setup and the owner's preferred balance of style and road manners.
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 2006 Mercedes-Benz S350 Tires for Sale
Available 2006 Mercedes-Benz S350 tires span 225/55R17, 245/45R18, and 265/40R18 radial sizes, with BFGoodrich and Nitto options in several g-Force series plus Silvertown Radial choices. The product grid is most useful for comparing blackwall, wide whitewall, and redline styles along with wheel-width compatibility by size.
Tire questions for the 2006 Mercedes-Benz S350 usually come down to exact size, 17-inch versus 18-inch wheel fitment, staggered AMG Sport Package setup, and how to choose among available blackwall, whitewall, or redline radial options.
Tire Size & Fitment
What tire size fits a 2006 Mercedes-Benz S350?
The 2006 Mercedes-Benz S350 uses three tire sizes depending on sub-model: 225/55R17, 245/45R18, and 265/40R18. The Base model uses 225/55R17, several 18-inch configurations use 245/45R18, and the w/AMG Sport Pkg. uses a staggered setup with 245/45R18 front and 265/40R18 rear.
The practical takeaway is that the right size depends on the exact version of the car and the wheels currently on it. Start by confirming the sub-model, then verify whether the car has 17-inch wheels, standard 18-inch wheels, or the staggered AMG Sport Package arrangement before comparing tire series or sidewall appearance.
What size rim does a 2006 Mercedes-Benz S350 use?
A 2006 Mercedes-Benz S350 uses either 17-inch or 18-inch rims, depending on configuration. The 225/55R17 fitment uses a 17-inch rim, while both 245/45R18 and 265/40R18 use 18-inch rims, with the larger 265/40R18 serving the rear of the AMG Sport Package staggered setup.
Wheel diameter should be confirmed before anything else because a 17-inch tire and an 18-inch tire are not interchangeable. It is also wise to check actual wheel width on the car, especially if the S350 has had wheel changes in the past, since tire choices within the same rim diameter still have their own approved width ranges.
Do all 2006 Mercedes-Benz S350 sub-models use the same tire size?
No, 2006 Mercedes-Benz S350 sub-models do not all use the same tire size. The Base uses 225/55R17, the 4Matic and Appearance Package use 245/45R18, and the AMG Sport Package uses two sizes: 245/45R18 in front and 265/40R18 in the rear.
That variation means tire replacement starts with identifying the exact sub-model and whether the car uses a square or staggered setup. It is especially important on the AMG Sport Package, where front and rear tires are different sizes and should not be treated as a single all-around application.
Choosing the Right Tire
What should I consider when choosing a 2006 Mercedes-Benz S350 tire?
Start with the correct size for the exact 2006 Mercedes-Benz S350 configuration, then compare construction, wheel-width compatibility, sidewall style, and tire series. All of the primary fitments here are radial, but the available product mix differs by size, with broader appearance and series choices in 225/55R17 than in 265/40R18.
A Base model owner may focus on whether a blackwall, wide whitewall, or redline presentation suits the car, while an AMG Sport Package owner will be more concerned with maintaining the correct staggered layout. Actual wheel dimensions and intended use matter too, particularly on cars that may have received aftermarket wheels over time.
What sidewall styles are available for 2006 Mercedes-Benz S350 tires?
Sidewall style depends on tire size. Blackwall options are available in all three primary sizes, while 225/55R17 also includes BFGoodrich Silvertown Radial choices with a wide whitewall or redline sidewall, giving the Base-model fitment the widest appearance range among the available tires.
That matters because sidewall treatment changes the car's visual character even when the basic tire size stays the same. A blackwall keeps a more modern presentation, while a whitewall or redline creates a stronger vintage-inspired look, so the right choice depends on whether the S350 is being kept stock in spirit or styled more distinctively.
What brands offer tires for the 2006 Mercedes-Benz S350?
Tires for the 2006 Mercedes-Benz S350 are available from BFGoodrich and Nitto, depending on size. BFGoodrich appears across all three primary fitments, while Nitto is offered in 245/45R18, giving that size one of the broader brand comparisons within the S350 lineup.
Brand is only one part of the decision. It helps to compare the tire series within the correct size, along with sidewall style and wheel-width range, because two tires from different brands may still suit very different goals such as maintaining a clean blackwall look or selecting a more specialized performance-style radial.
Restoration & Appearance
Which tire should I choose for a period-style 2006 Mercedes-Benz S350?
A period-style approach begins with retaining the correct primary tire size for the exact 2006 Mercedes-Benz S350 sub-model. For the Base model's 225/55R17 fitment, BFGoodrich Silvertown Radial options add a distinctive wide whitewall or redline presentation, while blackwall tires keep a more contemporary luxury-sedan look.
Appearance goals should stay secondary to correct fitment, especially since the S350 uses multiple wheel and tire combinations across the range. Anyone pursuing strict originality should compare the car's present wheel package and trim details with marque-specific historical references, then choose a sidewall style that supports the intended finished look.
How does tire construction affect the appearance of a restored 2006 Mercedes-Benz S350?
On the 2006 Mercedes-Benz S350, the primary fitments are radial tires, so the visual difference comes less from bias-ply versus radial construction and more from the sidewall treatment and tire series selected. Blackwall tires create the most modern presentation, while whitewall and redline choices in 225/55R17 add a more customized or nostalgic effect.
That means appearance planning should focus on matching the tire's visual character to the car's wheel design and overall restoration theme. A clean stock-style sedan usually benefits from staying close to the original size and wheel diameter, while a more expressive build may use sidewall styling as a deliberate design element.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2006 Mercedes-Benz S350?
Yes, modifications can affect tire fitment on a 2006 Mercedes-Benz S350 even when the tire size seems close to stock. Aftermarket wheels, altered offsets, suspension changes, or body modifications can change the clearance relationship around the fenders, steering components, and inner wheelhouse.
That is especially important on cars using the 18-inch fitments and on the staggered AMG Sport Package, where front and rear sizes already differ. A modified S350 should have actual wheel diameter and width checked before replacement, rather than relying only on the model name or assuming the current tires reflect the original setup.
What should I inspect before driving a 2006 Mercedes-Benz S350 on new tires?
Before driving a 2006 Mercedes-Benz S350 on new tires, inspect the wheels for damage, confirm the tire size matches the sub-model, and check that each tire is mounted on the correct axle position if the car uses the AMG Sport Package staggered arrangement. Tire pressure should also be set correctly before road use.
A short, careful road test is useful for checking steering feel, vibration, and any sign of rubbing during turns or over suspension movement. It also helps to look over suspension and alignment condition, because worn components can affect how a new set of tires behaves even when the size itself is correct.
How often should tires on a 2006 Mercedes-Benz S350 be inspected?
Tires on a 2006 Mercedes-Benz S350 should be inspected regularly, not just at replacement time. Check tread wear, air retention, sidewall condition, and any cuts or bulges as part of normal ownership, especially on a car that may alternate between long highway trips and extended storage.
Collector-minded or lightly used examples deserve extra attention because age and inactivity can matter as much as mileage. A quick inspection before longer drives helps catch problems early, and periodic checks of pressure and visible condition are particularly important on staggered setups where front and rear tires are not rotated in the same way.
