Mercedes Benz 500 SEC C126 (1991)

For sale is a 1991 Mercedes-Benz 500 SEC (C126) in gray with a black leather interior.

Highlights:

• A mid-cycle refresh 500 SEC in an attractive color combination
• Appraisal report dated August 2026 valuing the car at over €22,000 is available
• Second-hand and has always been family-owned (the current owner’s brother-in-law bought the car in 1991 as a demo car; the current owner took it over in 1993)
• Service records available
• Extensive and fully functional features
• Last service in November 2025; fresh TÜV valid through August 2028
• Brake system, including rotors and pads, as well as shock absorbers, replaced one year ago
• Retrofitted stainless steel exhaust system
• Cold start control
• Retrofitted immobilizer
• Radio and sound system upgraded
• Air conditioning upgraded to current standards
• Slightly lowered (subtly)
• All modifications are registered. The original rims are included

General Information about the Vehicle

• Year of manufacture: 1991
• First registration: Germany, 1991
• Location: 77830 Bühlertal, Germany
• Number of previous owners: 2 (family-owned since initial registration)
• Accident-free
• H license plate
• TÜV valid until 08/2028
• Registered
• Ready to drive immediately

Model History

With the W126 series, Mercedes-Benz introduced the second generation of the S-Class in 1979—a milestone in technology, comfort, and design. Starting in 1981, the elegant C126 coupe joined the lineup: the 500 SEC. This model combined a powerful V8 engine with timeless styling and a luxurious interior. A total of over 74,000 coupes were built, making the SEC one of the brand’s most sought-after luxury coupes to this day.

Facts

Exterior & Interior:

• Exterior Color: Gray
• Interior: black leather upholstery, well-maintained condition with minor signs of wear
• Repainted: Partially repainted (cosmetic touch-ups)

Engine and Transmission:

• 5.0-liter V8 engine with 245 PS
• Automatic transmission
• Last service: 11/2025

Mileage:

• Mileage: 385,028 km
• Verifiable mileage: Yes
• Service history: available

Documentation:

• German vehicle registration documents
• TÜV reports
• Service history
• Service reports, invoices
• Appraisal report from August 2026 with a valuation of €22,000

Tires, body, and underbody:

• Tires: approx. 7 mm tread depth
• Body: good condition, only minimal age-related signs of wear
• Underbody: good condition, no known rust
• Please view the photo gallery and videos for further insights into the vehicle’s condition.

Known Issues

• The battery is approx. 6 years old; replacement is recommended
• Otherwise, there are no known defects
• Please view the photo gallery and videos to get a better idea of the vehicle’s condition.

Summary

For sale is a very well-maintained 1991 Mercedes-Benz 500 SEC (C126) in the classic color combination of gray with black leather interior. The vehicle is second-hand and has always been family-owned. Its history is documented, including the service record book and regular maintenance—most recently in November 2025. The car is equipped with an “H” license plate and is registered. Both visually and mechanically, the 500 SEC is in excellent condition. It is a well-rounded vehicle with extensive documented investments, and a current appraisal valuing it at over €22,000 is available. An all-around stylish classic for connoisseurs of Mercedes’ luxury class.