WIS 13.22 Single-belt Drive

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Description - Poly-V-belt drive (Serpentine Belt)

The Poly-V-belt drive (commonly known as the Serpentine Belt) drives engine components (alternator, AC compressor, etc.) from the engine.

Layout Diagrams - Poly-V-belt drive (Serpentine Belt)

S350/S430/S500

W220 poly-V-belt drive layout S500.png
  1. Automatic belt tensioner
  2. ABC tandem pump (pump for power-steering assistance and ABC chassis)
  3. Air conditioning compressor
  4. Crankshaft
  5. Coolant pump
  6. Generator (alternator)
  7. Idler pulley

Length: 2380mm

S55 AMG

W220 poly-V-belt drive layout S55 AMG.png The S 55 AMG has two poly-V-belts (belt one shown in purple/belt two shown in black).
  1. Idler pulley
  2. Automatic belt tensioner
  3. ABC tandem pump (pump for power-steering assistance and ABC chassis)
  4. Air conditioning compressor
  5. Crankshaft
  6. Coolant pump
  7. Generator (alternator)
  8. Idler pulley
  9. Automatic belt tensioner
  10. Supercharger

Length of belt one: 1289 mm

Length of belt two: 2462 mm

S600

W220 poly-V-belt drive layout S600.png
  1. Automatic belt tensioner
  2. ABC tandem pump (pump for power-steering assistance and ABC chassis)
  3. Air conditioning compressor
  4. Crankshaft
  5. Coolant pump
  6. Generator (alternator)
  7. Idler pulley
  8. Idler pulley
  9. Idler pulley

Length: 2335 mm

DIY Replacement - Poly-V-belt drive (Serpentine Belt)

S350/S430/S500

See photo DIY here

http://www.benzworld.org/forums/w220-s-class/1582489-drive-belt-idler-change-photo-diy.html

S55 AMG

TBD

S600

TBD