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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
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- Automatic belt tensioner
- ABC tandem pump (pump for power-steering assistance and ABC chassis)
- Air conditioning compressor
- Crankshaft
- Coolant pump
- Generator (alternator)
- Idler pulley
Length: 2380mm
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S55 AMG
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The S 55 AMG has two poly-V-belts (belt one shown in purple/belt two shown in black).
- Idler pulley
- Automatic belt tensioner
- ABC tandem pump (pump for power-steering assistance and ABC chassis)
- Air conditioning compressor
- Crankshaft
- Coolant pump
- Generator (alternator)
- Idler pulley
- Automatic belt tensioner
- Supercharger
Length of belt one: 1289 mm
Length of belt two: 2462 mm
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S600
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- Automatic belt tensioner
- ABC tandem pump (pump for power-steering assistance and ABC chassis)
- Air conditioning compressor
- Crankshaft
- Coolant pump
- Generator (alternator)
- Idler pulley
- Idler pulley
- Idler pulley
Length: 2335 mm
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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