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2019 Mercedes-Benz SL 450 Overview, Reviews, Ratings & Specs

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Cathleen V | November 20, 2025
The 2019 Mercedes-Benz SL 450 is part of the iconic SL-Class roadster lineage, known for its blend of luxury and performance. This model year belongs to the R231 generation, which ran from 2013 to 2020. The SL 450 is typically the entry-level trim for the SL-Class. Its popularity stems from its timeless design, sophisticated convertible experience, and the prestigious Mercedes-Benz badge, offering a compelling combination of comfort and sportiness in a convertible package. Pricing for a used 2019 model typically ranges from $60,000 to $80,000 depending on condition and options.
The Good

The 2019 SL 450 offers a powerful yet smooth V6 engine, a supremely comfortable ride, and a striking design that turns heads. Its robust build quality and advanced engineering contribute to good reliability. For emotional buyers, the exhilarating open-top driving experience and luxurious interior are paramount. Practically, it provides ample performance for spirited drives and a refined cruising demeanor.

The Bad

Potential owners should be aware of the relatively high purchase and maintenance costs associated with a luxury convertible like the 2019 SL 450. Some may find the infotainment system dated compared to newer Mercedes models, and the rear seats, if present, are very cramped and best suited for occasional use or storage.

2019 Mercedes-Benz SL 450: Quick Overview

  • Engine Options: The 2019 Mercedes-Benz SL 450 comes standard with a 3.0-liter twin-turbocharged V6 engine.
  • Horsepower: The V6 engine produces 362 horsepower.
  • Torque: It generates 369 lb-ft of torque.
  • Transmission: Paired with a 9-speed automatic transmission (9G-TRONIC).
  • Drivetrain: Rear-wheel drive (RWD) is standard.
  • Fuel Economy: EPA estimated fuel economy is around 19 MPG city and 26 MPG highway.
  • 0-60 Times: Approximately 4.7 to 4.9 seconds, depending on conditions.
  • Towing Capacity: The SL 450 is not designed for towing; towing capacity is generally listed as N/A or 0 lbs.
  • Body Style: Two-door convertible with a retractable hardtop.
  • Key Trims: The primary trim for this model year is the SL 450. Higher trims like the SL 550 (which has a V8) and AMG variants are available but distinct from the SL 450.
  • Standard Features for SL 450:
    • Power-retractable hardtop with panoramic glass roof
    • Nappa leather upholstery
    • Heated and ventilated power-adjustable front seats with memory
    • AIRSCARF neck-level heating system
    • COMAND infotainment system with a 7-inch display
    • Navigation system
    • Bluetooth connectivity
    • HD Radio and SiriusXM Satellite Radio
    • Keyless entry and ignition
    • Dual-zone automatic climate control
    • Power-folding mirrors
    • 19-inch alloy wheels
    • Adaptive suspension
    • Automatic LED headlights
    • Rain-sensing windshield wipers
    • Wind deflector
    • Driver-assistance features (see prompt 7 for details)
  • Optional Features:
    • Premium audio system (e.g., Harman Kardon)
    • Active multicontour seats with massage function
    • Heated steering wheel
    • Carbon fiber interior trim
    • Larger wheels
    • Advanced driver-assistance packages

2019 Mercedes-Benz SL 450 Specifications

Vehicle Information
Year 2019
Make Mercedes-Benz
Model SL 450
Trim -
Style -
Type Convertible
Category Compact Car
Manufacturing Details
Made In Germany
Manufacturing City BREMEN
Dimensions
Doors 2-Door
Curb Weight 3826 pounds
Gross Vehicle Weight Rating -
Overall Height 51.20 inches
Overall Length 182.30 inches
Overall Width 76.70 inches
Wheelbase Length 101.70 inches
Standard Seating 2
Engine & Performance
Engine 3L V6
Engine Size 3L
Engine Cylinders 6
Transmission 9-Speed Automatic
Transmission Type Automatic
Transmission Speeds 9-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $89,150
Invoice Price $82,910
Delivery Charges $995

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What Problems Does the 2019 Mercedes-Benz SL 450 Have?

The 2019 Mercedes-Benz SL 450, being part of the R231 generation, generally benefits from Mercedes-Benz's reputation for solid engineering. However, like any complex luxury vehicle, some issues have been reported by owners and mechanics. One commonly cited concern across various Mercedes models, including the SL, revolves around the electronics and infotainment system. Glitches with the COMAND system, such as freezing screens or non-responsive controls, can occur. Battery drain issues have also been mentioned, sometimes linked to parasitic draws from various modules that don't shut down properly.

The retractable hardtop mechanism, while generally reliable, is a complex system and can be a source of potential issues over time, especially with age and exposure to elements. Owners have reported occasional problems with the top not sealing correctly, motors failing, or the system getting stuck. Regular maintenance is crucial to prevent premature wear on these components.

Regarding recalls for the 2019 SL 450, specific issues can vary. For instance, some Mercedes vehicles from this era have faced recalls related to airbag inflators (due to the Takata recall, though this was more prominent in earlier years) or potentially faulty sensors that could impact safety systems. It is always recommended to check the National Highway Traffic Safety Administration (NHTSA) website with the vehicle's VIN for any outstanding recalls.

In terms of long-term reliability, the powertrain (V6 engine and 9-speed transmission) is generally robust when properly maintained with regular fluid changes and inspections. However, the cost of repairs for any component, particularly specialized parts for a luxury convertible, can be significant. Owners who adhere strictly to the recommended maintenance schedule and address minor issues promptly tend to experience fewer major problems. While not known for widespread catastrophic failures, potential buyers should be prepared for the typical higher maintenance and repair costs associated with a high-end German convertible.

How long will the 2019 Mercedes-Benz SL 450 last?

Based on owner data and typical usage patterns for a luxury convertible, a 2019 Mercedes-Benz SL 450 can reasonably be expected to serve its owner for 150,000 to 200,000 miles or more with diligent maintenance. Owners who drive their SL as a weekend car or for occasional spirited drives might accumulate closer to 10,000 miles annually, suggesting a service life of 15-20 years. Those who use it more frequently could reach higher mileage sooner. The long-term durability is generally good for the core mechanical components, such as the engine and transmission, which are built to high standards. However, the retractable hardtop mechanism and various electronic modules represent potential weaknesses over time. Regular servicing at recommended intervals, using quality parts, and addressing minor electrical gremlins promptly are key to maximizing its lifespan and avoiding costly repairs down the line.

What Technology & Safety Features are Included?

The 2019 Mercedes-Benz SL 450 is equipped with a suite of advanced technology, entertainment, and safety features befitting its luxury status. Standard tech includes the COMAND infotainment system, accessed via a 7-inch high-resolution display. This system offers navigation, Bluetooth connectivity for audio streaming and hands-free calling, HD Radio, and a CD player. For audio enthusiasts, a standard sound system provides clear acoustics, with an optional Harman Kardon surround-sound system available for an enhanced listening experience.

Driver-assistance features are a strong suit. Standard equipment typically includes Active Brake Assist (forward collision warning and mitigation), a rearview camera, and Mercedes-Benz's ATTENTION ASSIST, which monitors driver drowsiness. Many desirable advanced driver-assistance systems were available as options or part of packages. These could include DISTRONIC PLUS (adaptive cruise control with steering assist), Active Lane Keeping Assist, Active Blind Spot Assist, and Parking Pilot for semi-autonomous parking assistance. These features contribute significantly to driver confidence and safety on long journeys or in traffic.

Safety is further bolstered by a strong chassis, multiple airbags (front, side, and knee), and the Electronic Stability Program (ESP). The SL also features a pop-up roll bar system that deploys automatically in the event of an imminent rollover. While the NHTSA and IIHS do not typically conduct extensive crash testing on low-volume, niche luxury convertibles like the SL-Class, Mercedes-Benz vehicles generally perform well in internal and industry-standard safety tests, reflecting their robust construction and advanced safety engineering. Optional features might also include a surround-view camera system for enhanced parking visibility and adaptive LED headlights that adjust their beam pattern to optimize illumination and reduce glare for other drivers.

What Colors Options are Available?

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In the meantime, feel free to explore the other sections for more content.

2019 Mercedes-Benz SL 450 Prices and Market Value

When new, the 2019 Mercedes-Benz SL 450 had an approximate base MSRP in the range of $90,000 to $95,000, before any optional equipment or packages. Current used market prices for a 2019 SL 450 typically fall between $60,000 and $80,000, heavily influenced by mileage, condition, and specification. The SL-Class, like many luxury convertibles, experiences significant depreciation in its first few years. However, after the initial steep drop, its value tends to stabilize more than mass-market vehicles, especially for well-maintained examples. Factors affecting resale value include low mileage, a complete service history, desirable optional features (like premium audio or advanced driver aids), and the overall condition of the exterior, interior, and retractable hardtop mechanism. Enthusiast interest in well-preserved models can also help maintain residual values.

2019 Mercedes-Benz SL 450 Cost of Ownership

Owning a 2019 Mercedes-Benz SL 450 is definitively costly. Insurance premiums will be higher than average due to its luxury status, performance, and repair costs. Fuel economy, while respectable for its class, means frequent and somewhat expensive fill-ups at premium gasoline stations. Routine maintenance, including oil changes, filter replacements, and brake services, will be significantly more expensive than for a mainstream vehicle. Repairs, particularly for specialized components like the retractable hardtop or advanced electronics, can easily run into thousands of dollars. Therefore, the SL 450 is not an economical car to own; it is a luxury item with associated high ownership expenses.

2019 Mercedes-Benz SL 450 Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 19.80 gallons
City Mileage 20 miles/gallon
Highway Mileage 28 miles/gallon

2019 Mercedes-Benz SL 450 Recalls & Defects

Power Train:axle Assembly
Recall date 2019-10-25
Recall no. 19v768000
Source NHTSA
Summary Mercedes-Benz Usa, Llc. (Mbusa) IS Recalling Certain 2019 Sl450, Sl63 Amg, and Sl550 Vehicles. Over Time, THE Bolt Connection AT THE Front-Left Mounting Point ON THE Rear Axle Carrier Casting MAY Fail, Possibly Affecting THE Vehicle's Handling.
Consequence Unexpected Changes IN THE Vehicle's Handling CAN Increase THE Risk OF A Crash.
Remedy Mbusa Will Notify Owners, and Dealers Will Inspect THE Front-Left Mounting Point OF THE Rear Axle Carrier. IF A Defect IN THE Bolt Connection OF THE Rear Axle Carrier IS Found, Mbusa Will Contact THE Owner and Offer A Repurchase OF THE Vehicle. THE Recall Began November 22, 2019. Owners MAY Contact Mbusa Customer Service AT 1-800-367-6372. Mbusa's Number FOR This Recall IS 2019100018.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
AIR Bags:frontal:passenger Side:inflator Module
Recall date 2019-08-02
Recall no. 19v571000
Source NHTSA
Summary Mercedes-Benz Usa, Llc. (Mbusa) IS Recalling Certain 2018 Sl65 Amg, 2019 Sl63 AMG and 2018-2019 Sl450 and Sl550 Vehicles. THE Front Passenger AIR BAG MAY Have Been Improperly Sewn, Allowing THE Seam TO Tear During Deployment.
Consequence A Tear IN THE AIR BAG MAY Decrease Performance and Increase THE Risk OF Injury.
Remedy Mbusa Will Notify Owners, and Dealers Will Replace THE Passenger AIR Bag, Free OF Charge. THE Recall Began December 13, 2019. Owners MAY Contact Mbusa Customer Service AT 1-800-367-6372. Mbusa's Number FOR This Recall IS 2019100016.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Communication: Auto Crash Notification
Recall date 2021-02-05
Recall no. 21v058000
Source NHTSA
Summary Mercedes-Benz Usa, LLC (Mbusa) IS Recalling Certain 2016 - 2021 Cla-class, Gla-class, Gle-class, Gls-class, Slc-class, A-class, Gt-class, C-class, E-class, S-class, Cls-class, Sl-class, B-class, Glb-class, Glc-class, and G-class Vehicles. Please Refer TO THE Part 573 Report FOR Specific Vehicle Model Details. THE Software Design OF THE Communication Module MAY Fail TO Communicate THE Correct Vehicle Location FOR THE Emergency Call System (Ecall) IN THE Event OF A Crash.
Consequence Failure OF THE Ecall System MAY Result IN Emergency Responders Being Dispatched TO THE Wrong Location, Increasing THE Risk OF Injury Following A Crash.
Remedy Mbusa Will Notify Owners, and THE Communication Module Software Will BE Updated BY A Dealer, or Through AN Over-The-Air (Ota) Update, Free OF Charge. THE Recall Began March 12, 2021. Owners MAY Contact Mbusa Customer Service AT 1-877-762-8267. Mbusa's Number FOR This Recall IS 2021020025.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Electrical System:software
Recall date 2021-02-05
Recall no. 21v058000
Source NHTSA
Summary Mercedes-Benz Usa, LLC (Mbusa) IS Recalling Certain 2016 - 2021 Cla-class, Gla-class, Gle-class, Gls-class, Slc-class, A-class, Gt-class, C-class, E-class, S-class, Cls-class, Sl-class, B-class, Glb-class, Glc-class, and G-class Vehicles. Please Refer TO THE Part 573 Report FOR Specific Vehicle Model Details. THE Software Design OF THE Communication Module MAY Fail TO Communicate THE Correct Vehicle Location FOR THE Emergency Call System (Ecall) IN THE Event OF A Crash.
Consequence Failure OF THE Ecall System MAY Result IN Emergency Responders Being Dispatched TO THE Wrong Location, Increasing THE Risk OF Injury Following A Crash.
Remedy Mbusa Will Notify Owners, and THE Communication Module Software Will BE Updated BY A Dealer, or Through AN Over-The-Air (Ota) Update, Free OF Charge. THE Recall Began March 12, 2021. Owners MAY Contact Mbusa Customer Service AT 1-877-762-8267. Mbusa's Number FOR This Recall IS 2021020025.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Communication: Auto Crash Notification
Recall date 2022-05-20
Recall no. 22v365000
Source NHTSA
Summary Mercedes-Benz Usa, LLC (Mbusa) IS Recalling Certain 2017-2022 Cla-class, Gla-class, Gle-class, Gls-class, Slc-class, A-class, AMG Gt-class, C-class, E-class, S-class, Sl-class, Glc-class, Cls-class, Glb-class, and G-class Vehicles. Please Refer TO Mbusa's Recall Report FOR Specific Vehicle Model Details. AN Error IN THE Communication Module's SIM Card Software CAN Cause A Mobile Network Connection Failure, Disabling THE Emergency Call (Ecall) System.
Consequence A Disabled Ecall System Would Prevent A Vehicle Occupant From Contacting THE Emergency Services Call Center IN AN Emergency, Potentially Delaying Emergency Responders and Increasing THE Risk OF Injury.
Remedy THE Communication Module Software Will BE Updated Through AN Over-The-Air (Ota) Update or BY A Dealer, Free OF Charge. Owner Notification Letters Were Mailed July 8, 2022. Owner Notification Letters Will BE Mailed IN Phases, ON July 8, 2022, MAY 17, 2024, July 29, 2024, and September 27, 2024. Owners MAY Contact Mbusa Customer Service AT 1-800-367-6372. Mbusa's Numbers ARE FOR This Recall IS 2022060005 and 2023110006.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.
Electrical System:software
Recall date 2022-05-20
Recall no. 22v365000
Source NHTSA
Summary Mercedes-Benz Usa, LLC (Mbusa) IS Recalling Certain 2017-2022 Cla-class, Gla-class, Gle-class, Gls-class, Slc-class, A-class, AMG Gt-class, C-class, E-class, S-class, Sl-class, Glc-class, Cls-class, Glb-class, and G-class Vehicles. Please Refer TO Mbusa's Recall Report FOR Specific Vehicle Model Details. AN Error IN THE Communication Module's SIM Card Software CAN Cause A Mobile Network Connection Failure, Disabling THE Emergency Call (Ecall) System.
Consequence A Disabled Ecall System Would Prevent A Vehicle Occupant From Contacting THE Emergency Services Call Center IN AN Emergency, Potentially Delaying Emergency Responders and Increasing THE Risk OF Injury.
Remedy THE Communication Module Software Will BE Updated Through AN Over-The-Air (Ota) Update or BY A Dealer, Free OF Charge. Owner Notification Letters Were Mailed July 8, 2022. Owner Notification Letters Will BE Mailed IN Phases, ON July 8, 2022, MAY 17, 2024, July 29, 2024, and September 27, 2024. Owners MAY Contact Mbusa Customer Service AT 1-800-367-6372. Mbusa's Numbers ARE FOR This Recall IS 2022060005 and 2023110006.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.

2019 Mercedes-Benz SL 450 Warranty

Basic
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Powertrain
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Rust
Original warranty 48 months / 50,000 miles
Estimated remaining Expired

2019 Mercedes-Benz SL 450 Insurance

Insurance for a 2019 Mercedes-Benz SL 450 is moderately priced, reflecting its status as a Convertible with strong safety ratings and
reasonable repair costs.

How Does the 2019 Mercedes-Benz SL 450 Compare to Other Convertible?

The 2019 Mercedes-Benz SL 450 competes in the premium grand touring convertible segment. Key rivals include the BMW 6 Series Convertible (though the 8 Series was emerging), the Jaguar F-TYPE Convertible, and potentially the Porsche 911 Carrera Cabriolet depending on how strictly one defines the segment.

Performance: The SL 450's V6 offers strong, refined acceleration, prioritizing comfortable grand touring over raw sportiness compared to, say, a Porsche 911. The Jaguar F-TYPE often offers more visceral engine notes and sharper handling, appealing to a more performance-focused buyer. BMW's 6 Series provided a similar balance of luxury and performance.

Features: Mercedes-Benz excels in luxury and comfort features. The SL 450's AIRSCARF neck-heating system and plush interior are hallmarks. BMW often matches or exceeds Mercedes in technology integration and build quality. The F-TYPE might lag slightly in cutting-edge tech but compensates with a driver-centric cockpit and unique styling.

Reliability: Historically, Mercedes-Benz has a reputation for solid build quality, though complex systems can lead to costly repairs. BMW also generally offers good reliability for its class. Jaguar's reliability has improved over the years but can sometimes lag behind its German counterparts, with potential for higher repair costs.

Price: The SL 450, positioned as a more accessible SL model, typically offered a competitive entry price against its rivals when new and in the used market. Higher-end trims or models like the Porsche 911 Carrera Cabriolet would significantly outprice the SL 450.

Alternatives:
* Similar: The BMW 6 Series Convertible (specifically 640i models) offers a comparable blend of luxury, performance, and convertible experience.
* More Sporty: The Jaguar F-TYPE Convertible provides a more engaging driving dynamic and a more aggressive aesthetic, if comfort is slightly less prioritized.
* Higher Performance/Prestige: A Porsche 911 Carrera Cabriolet offers superior outright performance and brand prestige but at a considerably higher price point and with a less comfortable ride.

If the priority is a comfortable, luxurious, and stylish open-top experience with ample power, the 2019 SL 450 is a strong contender. If outright sportiness is key, the F-TYPE might be preferred. If a more driver-focused, yet still luxurious, experience is desired, a 6 Series is a worthy comparison.

Final Verdict: Is the 2019 Mercedes-Benz SL 450 a Good Convertible?

The 2019 Mercedes-Benz SL 450 is ideal for the discerning driver who values a sophisticated, comfortable, and stylish grand touring convertible experience over raw, track-focused performance. It's perfect for those seeking a luxurious drop-top for weekend cruises and scenic drives, who appreciate timeless design and the prestige of the Mercedes-Benz brand. It is worth buying, particularly on the used market, where its value proposition improves significantly compared to its original MSRP.

Buying used is strongly recommended given the substantial depreciation. Opting for a model with lower mileage and a well-documented maintenance history is crucial, as repairs on these complex vehicles can be costly. While newer models offer more advanced tech, the 2019 SL 450 provides a refined and enjoyable experience that still holds significant appeal for its blend of comfort, performance, and iconic roadster status. It represents a solid choice for a luxurious convertible if acquired at a reasonable used price and with awareness of potential ownership costs.

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Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.