Mercedes-Benz 500 SEC 1985

£18,100
12/01/26
CAR OVERVIEW
Mercedes-Benz 500 SEC 1985
Overview
This Mercedes-Benz 500 SEC represents the absolute peak of Mercedes’ over-engineered golden era. The C126 S-Class Coupé was conceived without cost constraints, designed to be the finest long-distance grand tourer in the world. With its pillarless profile, bank-vault construction, and effortless V8 power, the 500 SEC became the definitive luxury coupé of the 1980s and a quiet benchmark that rivals struggled to match for decades.
This particular example stands out as a true collector-grade car, preserved in remarkable condition with extraordinarily low mileage, offering a rare chance to secure a near time-capsule example of one of Mercedes-Benz’s most important models.
Auction Grade
- Overall grade 3.5
- Interior grade C
Chassis Number
- WDB1260441A198244
Mileage
- 11,793 km
- 7,330 miles
Engine and Drivetrain
- 5.0-litre naturally aspirated M117 V8 petrol engine
- Four-speed automatic transmission
- Rear-wheel drive
Equipment and Features
- Power-adjustable front seats
- Automatic climate control
- Electric windows and mirrors
- Electric sunroof
- Cruise control
- Period-correct Becker audio system
- Original Mercedes-Benz instrumentation
- ETC unit fitted
- Original owner’s manuals, warranty book, and service documentation (to be transferred)
Condition Overview
Exterior Condition
The exterior presents exceptionally well, with straight body panels and consistent paint depth throughout. Only very minor stone chipping is noted on the bonnet, consistent with careful, limited use. Chrome brightwork remains crisp and reflective, reinforcing the car’s low-mileage preservation.
Interior Condition
The blue interior shows light, age-related wear rather than deterioration. Minor trim marks, gentle leather patina, and slight headliner discolouration are noted, all entirely consistent with a well-kept, unrestored 1980s luxury interior. Importantly, the cabin retains its original materials and finishes.
Mechanical Condition
The vehicle is reported as mechanically sound, with no structural concerns noted. The engine bay and underbody presentation support the belief of long-term careful storage rather than restoration. As with any classic of this era, a recommissioning inspection after import is advised.
Maintenance and Provenance
- Manufactured in 1985
- First registered in Japan in June 1996
- Believed genuine 11,793 km from new
- Long-term private ownership
- Service records and original documentation present
- First-time auction listing
Why the 500 SEC Matters
The 500 SEC comes from a period when Mercedes-Benz built cars to outlast their owners. The C126 was engineered with the same philosophy as the W126 S-Class saloon, but wrapped in a pillarless coupé body that remains elegant, understated, and instantly recognisable today.
The M117 V8 is one of Mercedes’ most durable engines, renowned for its smooth delivery and longevity. This was an era before downsizing, turbocharging, or cost optimisation. Everything from the door shut to the steering feel reflects engineering decisions made without compromise.
Today, truly low-mileage, original SECs are becoming increasingly scarce. Many have been modified, heavily used, or lost to corrosion in harsher climates. Japanese-market preservation, combined with ultra-low mileage, places this example firmly in investment-grade territory.
Summary
This 1985 Mercedes-Benz 500 SEC is a rare opportunity to acquire a genuinely low-mileage, highly original example of one of the greatest luxury coupés ever built. With its timeless pillarless design, smooth 5.0-litre V8, and extraordinary condition, it represents a blue-chip classic from Mercedes-Benz’s most revered era.
Equally suited to concours-style preservation, long-term collection, or refined weekend touring, this 500 SEC offers understated presence, mechanical integrity, and increasing collector appeal as values of top-tier 1980s Mercedes continue to rise.
AUCTION CAUTION NOTES
CAR OVERVIEW

A1- Small scratch
A2- Scratch
A3- Large scratch
E1- Few dimples
E2- Many dimples
E3- Heavy dimples
U1- Small dent
U2- Dent
U3- Large dent
W1- Repair mark / wave
W2- Wavy panel
S1- Rust
S2- Heavy rust
C1- Corrosion
P- Paint marked / faded
H- Faded / need polish
X- Element requires replacement
XX- Replaced after accident
*- Light scratch / polish
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