11 34 715 Replacing all valve springs (N54, N54T)

2011 BMW Z4 35i, StandardSECTION 11 34 715 Replacing all valve springs (N54, N54T)
IMPORTANT: Different valve stem diameters.

Mixing up the valve springs will result in damage to the engine. 

Necessary preliminary tasks: 

Intake valves 

Fit cylinder head on special tool 11 9 000 .

Press valve spring down on spring cup with special tools 11 0 009 and 11 9 017.

Fig 1: Pressing Valve Spring Down On Spring Retainer Using Special Tools 11 0 009 And 11 9 017
G04754994Courtesy of BMW OF NORTH AMERICA, INC.

Exhaust valves 

Fit cylinder head on special tool 11 9 000 .

Press valve spring down on spring cup with special tools 11 0 009 and 11 0 346.

Fig 2: Pressing Valve Spring Down On Spring Retainer Using Special Tools 11 0 009 And 11 0 346
G04754995Courtesy of BMW OF NORTH AMERICA, INC.

Remove valve tapers with a magnet.

Remove valve spring and spring retainer.

Set down on special tool 11 4 480 in a tidy and orderly fashion.

Fig 3: Removing Valve Spring And Spring Retainer
G04777541Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.