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

WARNING: This page is about a different variant/trim than selected.

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

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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

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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

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IMPORTANT: Incorrect installation possible.

Incorrect installation will result in valve spring breakage!

Color marking (1) is normally on lower end of valve spring.

Installation note:

Inlet valve: Violet/green or violet/yellow

Exhaust: White/green or white/yellow

If the colors on the valve springs can no longer be identified, these must be replaced for safety reasons.

Fig 4: Dimensions Of Valve Spring

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Arrangement:

Fig 5: Exploded View Of Valve Assembly

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Assemble engine.

Check function of DME control unit.