Mercedes-Benz SL R129 600
1989–2001 · Roadster
Version
Engine
6.0L 12-cyl · Petrol
Power
394 HP
Torque
570 Nm
Transmission
AUTOMATIC
Drive
RWD
0-100 km/h
6.1 sec
Top Speed
250 km/h
Fuel consumption
14.9 L/100km
Body
Roadster
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Model overview
A model overview is not available for this generation yet.
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Engine overview · 6.0L 12-cyl PETROL
A refined, naturally aspirated V12 suited to the R129’s grand-touring character, but age, complexity and specialist servicing needs matter more than the engine’s original specification.
Pros
- Smooth, quiet V12 delivery
- No turbocharger system
Cons
- Complex and labour-intensive access
- Age-sensitive electrical and ignition components
- Cooling and sealing condition is important
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Age-related engine wiring and electrical deteriorationMedium
- Ignition distributor, rotor and high-tension component wearMedium
- Cooling-system and auxiliary-component ageingHigh
- Oil leaks from seals and gasketsMedium
Maintenance
Follow the VIN-specific Mercedes-Benz service schedule and use a technician experienced with the M120 V12.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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