Strengths
- Built like a bank vault
- Double-glazed windows
- M120 6.0 V12
Weaknesses
- Wiring harness rot
- Heavy fuel
- Outsized bulk
Notable tech
- W140 platform
- M104 inline-6 / M119 V8 / M120 V12
- 5G-Tronic auto
- RWD
- Vacuum-locking doors
- Self-closing boot
Common issues
- Wiring harness
- Hydraulic leaks
- Fuel use
- Vacuum doors
Engine derivatives
UK trims and engines offered across W140's life. Click any two rows to compare them side-by-side.
Pick two engines to compare
S 280 (M104 I6)
BHP193
Torque270 Nm
0–608.6 s
Top143 mph
MPG24 mpg
DriveRWD
Gearbox5AT
S 320 (M104 I6)
BHP231
Torque315 Nm
0–607.8 s
Top149 mph
MPG23 mpg
DriveRWD
Gearbox5AT
S 420 (M119 V8)
BHP279
Torque400 Nm
0–607.4 s
Top155 mph
MPG19 mpg
DriveRWD
Gearbox5AT
S 500 (M119 V8)
BHP315
Torque470 Nm
0–606.5 s
Top155 mph
MPG19 mpg
DriveRWD
Gearbox5AT
S 600 (M120 V12)
BHP408
Torque570 Nm
0–606.1 s
Top155 mph
MPG17 mpg
DriveRWD
Gearbox5AT
S 350 Turbodiesel
BHP148
Torque330 Nm
0–6011.0 s
Top125 mph
MPG32 mpg
DriveRWD
Gearbox5AT