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As they age, the BMW S54 engine found in the E46 M3, Z3M and Z4M are known start having Vanos issues which makes the engine sound like a diesel and robs the mid range torque which is needed for these engines to run realiably and efficiently. 

 

Notable VANOS (variable valve timing) issues are

  • Solenoid Failures: Leads to poor performance and rough idling.
  • Hub Bolts: Can shear off or loosen, causing engine damage.
  • Camshaft Gear Bolts: Failures can misalign the camshaft.
  • Seals and O-rings: Degrade over time, causing leaks and reduced performance.
  • VANOS Rattle: Noise from worn gears and bearings.
  • Oil Pump Drive Tab: Wears out, reducing oil pressure and causing failure.

 

Our Vanos Service Include-

  • Mounting Gaskets
  • Brand new BMW solenoid pack
  • Viton O-rings for oil pressure return valve 
  • Modfied (re-drilled) oil pump disc
  • Upgraded pistons seals and Viton o-rings
  • Fully rebuilt housing

S54 Vanos Hub Repair Service

$1,899.99Price
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