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Mercedes Benz S Class W140 S420 - Facts and Figures


General Value
Chassis W140
Model S420
Engine 4196cc
Engine Code M119
Fuel Type Petrol
Production 1991 - 1999
Predecessor W126
Successor W220
Performance Value
Power 286 PS - 210 kW - 282 BHP
Torque 410 Nm - 302 lb/ft
Acceleration 7.8 (s)
Top Speed N/A
MPG City 16.0 MPG
MPG Motorway 24.0 MPG
View All W140's

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W140 S420 Review

We want to find out opinions of W140 S420 Owners. Do the figures above match your S420 figures? Have you had any problems during ownership? Is it your Daily Driver? Would you recommened this type of S Class?

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S Class W140 S420 Problems, Faults and Recalls

  • R/1996/072 - Possible Loss Of Brake Vacuum Assistance - In a small number of cases leaks may occur in the vacuum line between the engine and the power brake unit. This would result in a need for increased brake pedal pressure when braking.
  • R/1997/025 - Possible Loss Of Brake Fluid - There may be insufficient clearance between the front brake hoses and the tyre inner wall. In the long term this could result in damage to the brake hose(s) with a risk of fluid loss.