The Good
The 2003 SL-Class offers potent V8 performance and distinctive styling, appealing to emotional buyers. Practically, it provides a comfortable ride, solid build quality, and a luxurious interior. While not the most fuel-efficient, its reliability (when well-maintained) and sophisticated engineering make it a desirable grand tourer.
The Bad
Potential weaknesses of the 2003 SL-Class include the complex Active Body Control (ABC) suspension, which can be expensive to repair. Electronic glitches, particularly with the convertible top mechanism, are also possible. Regular maintenance is crucial to avoid costly problems. Oil leaks are also not uncommon as the car ages.
2003 Mercedes-Benz SL-Class: Quick Overview
- Engine Options:
- SL500: 5.0L V8
- SL55 AMG: 5.4L Supercharged V8
- Horsepower:
- SL500: 302 hp
- SL55 AMG: 493 hp
- Fuel Economy (EPA Estimated):
- SL500: 16 mpg city / 23 mpg highway (estimated)
- SL55 AMG: 14 mpg city / 21 mpg highway (estimated)
- 0-60 Times:
- SL500: Around 6.1 seconds
- SL55 AMG: Around 4.5 seconds
- Towing Capacity: Not recommended or specified by Mercedes-Benz.
- Trim-Level Features:
- SL500: Leather upholstery, power-adjustable seats with memory, dual-zone climate control, premium sound system, navigation system (optional), retractable hardtop, Active Body Control (ABC) suspension.
- SL55 AMG: Upgraded brakes, AMG-tuned suspension, AMG body styling, sport seats, more aggressive exhaust note, and all the standard features of the SL500.
2003 Mercedes-Benz SL-Class Specifications
Vehicle Information
| Year | 2003 |
| Make | Mercedes-Benz |
| Model | SL-Class |
| Trim | - |
| Style | 5.0-Liter |
| Type | Sedan |
| Category | Sports Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | BRERNEN |
Dimensions
| Doors | 2-Door |
| Curb Weight | 1834.78 kg |
| Gross Vehicle Weight Rating | 3175.14 kg |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 5.0-L V-8 |
| Engine Size | 5L |
| Engine Cylinders | 8 |
| Transmission | 5-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 5-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $85,990 USD |
| Invoice Price | $79,971 USD |
| Delivery Charges | $720 USD |
Vehicle History Report
Specifications
History
Events
History Check
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Listings
Recalls
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Analysis
What Problems Does the 2003 Mercedes-Benz SL-Class Have?
Oil leaks, particularly from the valve cover gaskets and other engine seals, become more prevalent with age. While there aren't specific model-year related issues that drastically differ within the R230 generation, earlier models like the 2003 may exhibit these issues more frequently due to age and accumulated wear. Recalls were issued for certain safety-related concerns, such as issues with the braking system and airbags, so checking the vehicle's recall history is crucial before purchase. Long-term reliability is heavily dependent on proper and consistent maintenance. Neglecting scheduled service can lead to cascading failures and high repair bills.
How long will the 2003 Mercedes-Benz SL-Class last?
What Technology & Safety Features are Included?
Driver-assistance features were limited compared to modern vehicles, but the SL-Class did offer features like cruise control and electronic stability control.
Safety features included anti-lock brakes (ABS), electronic stability program (ESP), and numerous airbags, including side airbags. While official NHTSA crash-test ratings for the 2003 SL-Class are not readily available, Euro NCAP testing for the R230 SL-Class yielded good results for occupant protection.
The Active Body Control (ABC) suspension, while primarily focused on ride comfort and handling, also indirectly contributed to safety by enhancing stability and control in various driving conditions. Overall, the 2003 SL-Class provided a blend of luxury and safety features that were competitive for its era, even if some are rudimentary by today's standards.
What Colors Options are Available?
Exterior Colors
Interior Colors
2003 Mercedes-Benz SL-Class Prices and Market Value
2003 Mercedes-Benz SL-Class Cost of Ownership
2003 Mercedes-Benz SL-Class Fuel Efficiency
2003 Mercedes-Benz SL-Class Safety Rating
NHTSA
IIHS
2003 Mercedes-Benz SL-Class Insurance
reasonable repair costs.
How Does the 2003 Mercedes-Benz SL-Class Compare to Other Sedan?
Reliability is where the SL-Class often falls short compared to the Porsche 911, which is known for its robust engineering. The BMW Z8, while rare, also tends to have better reliability ratings than the SL. Price-wise, used SL-Class models are generally more affordable than comparable Z8s or 911s.
Alternatives to the 2003 SL-Class include a newer Porsche Boxster or Cayman for a more reliable and modern sports car experience. The BMW 6 Series convertible (E64 generation) offers a similar blend of luxury and performance with potentially lower maintenance costs than the SL. If reliability is a primary concern, the Porsche 911 is generally a better choice, albeit at a higher price point.
Ranks #757 Sedan
| 1 | 2023 Toyota Camry | (5.0★) |
| 2 | 2023 Honda Accord | (0.0★) |
| 3 | 2023 Lexus ES | (0.0★) |
| 4 | 2024 Subaru Legacy | (5.0★) |
| 5 | 2022 Mazda MX-30 | (4.0★) |
| 6 | 2024 BMW M3 | (0.0★) |
| 7 | 2023 Ford Mustang | (5.0★) |
| 8 | 2023 Mercedes-Benz AMG GT | (0.0★) |
| 9 | 2023 Audi A3 | (0.0★) |
| 10 | 2023 Chevrolet Camaro | (5.0★) |
| 11 | 2023 Hyundai Elantra Hybrid | (0.0★) |
| 12 | 2023 Nissan Altima | (4.0★) |
| 757 | 2003 Mercedes-Benz SL-Class | (5.0★) |
Final Verdict: Is the 2003 Mercedes-Benz SL-Class a Good Sedan?
Ray on March 21, 2024
Super carI bought my 2003 mb SL500 in 2023 with 30,000 original miles. It runs excellent has a bullet proof engine and design will always be IN vogue cuz of its sleek design. I got all the previous repair receipts from original owner which is great to know the history. As with any 21 yr old car there may be repairs. I have a great MB independent repair shop called Star Motors in Gainesville Fl who really knows these cars and they fix them right and for less than a dealer. Sure thing’s can go wrong and I have found repairs about 25% more than Honda or Toyota. One has to factor in repairs no matter what. I like the 5.0 engine and one thing is they last! They ride so smooth on the wide tires on the highways and there tight steering. Bose sound system still working great afte all these years. Buy one have it inspected if your worried. There in my view great cars. Depreciated a lot since new at $100,000 out the door. So paying 15k to 20k is a bargain. You’ll love it!
Dino on February 27, 2022
The SL55 AMG remains one of their best!I've had my '03 SL55 since new. It was one of the 1st US delivery cars. 19 years later it still is a gem. Looks amazing, performance from the 500hp V8 is brilliant. I really haven't had very many problems during my ownership. The worst part is depreciation. Mine was $130K out the door. Since I am not planning to sell, I haven't lost a penny. The problem with depreciation is as they get cheaper to buy, the bottom feeders swoop in, but they can't afford to maintain the $130K car they just bought for $30K. This will leave fewer and fewer good cars. If the SL55 is on your radar, buy the best car you can afford, have it inspected by someone who knows these cars and be prepared to maintain it like the $130K car that it is and it will reward you like very few cars can.
Consultant with a Capitol C on March 28, 2021
A few Recall Items, Dealer Fixed them, all goodThis Mercedes was above other Sports Cars I've owned. All of the Power Functions were reliable, good acceleration when needed. Could sustain speed with little, if any effort. Comfortable, no matter how long the trip. Expensive to repair, should something go wrong, is the only drawback..
HelpingHand on December 30, 2020
Worst car I EVER owned.This car will suck you dry. Every time anything had to be repaired, which was all the time, the repair costs usually started at $2000. When I bought the car it only had 30,000 miles and looked like new. Within a few weeks the roof leaked fluid ruining the seals to the window and was not operable...$6000. After that numerous smaller things broke, would not go out of park mode, brakes, electronic suspension failed, and too many other things to even mention. The car cost me $15000 in repairs in 18 months. I was so happy to sell the car for $3500 and take my losses. I will NEVER buy Mercedes ever again. If you look at the common problems consumers have with this car and the repair costs you will steer far away friends. BEWARE
Mike on September 6, 2020
It all boils down to proper car. Mine is a proofThis car is a dream. This is one of a kind and has been maintained at Mercedes and on time. That kept it running trouble free. It is a complex car with many systems that provide unmatched driving experience. Car is amazing. reading the manual and checking the fuses and relays are key. Many of the issues could be nothing than a bad fuse or relay. I won't drive anything else.
Carl rugby on July 31, 2020
Repair bills are a nightmare abc , even a headlighShould have researched the repair bills and reliability before I bought it. Particularly the suspension and the top. They charge you more for the parts and hourly rate just because it says Mercedes Benz..
jcsport on August 6, 2019
A car that turns heads. Runs beautifully.This car is ahead of its time. The features from 2003 are still not available on many other cars today. Amazing sports car with a luxury refined look.
Turkish Coffee on June 25, 2019
Speedy topless cruiserMercedes SL was my dream car when I was a child. After owning around 20 cars including a $150K Ferrari I wanted to get an SL just to have it and just to satisfy my childhood dreams. It is a roomy and super comfortable car. Interior is fancy, very well built. There is enough power and more power models are also available. I bought mine used for lot less then the original price which was $100K+ My purchase was a good decision and I would highly recommend.
Joe on June 18, 2019
Very good quality vehicle.Very good quality. It might be 16 years old but you wouldn't think it was more than 2-3 years old. Tires were like new and the vehicle was clean and the interior looked new.
Bob's SL500 on January 25, 2019
This car is the most beautiful car I have ever oweGreat looking car.Rides great for a sports car.Plenty of power,great interior.A pleasure to own.They are now going for great prices.If you can get one buy it
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.