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Symptoms:

  • No Forward
  • No Reverse
  • Gear ratio codes

Cause:

Narrow OE valve stem at linkage prone to stress-related breakage.

Correction:

Replace broken or suspect OE valve with improved-strength Sonnax manual valve.

6L45

Manual Valve Assembly
Part No. 104740-24K

Fits BMW units only.

You need this if... View Instructions

Some BMW vehicles with 6L45 transmissions may exhibit no engagement when shifted into Forward or Reverse gears. Under these circumstances, it is common that the manual valve has broken into two pieces forcing the car into the Neutral position. Sonnax standard-sized manual valve assembly 104740-24K addresses this problem with additional improvements.

  • Hardcoat anodized valve and aluminum link
  • Increased stem diameter for added strength to prevent breakage
  • Increased spool lengths for increased stability and leakage prevention

The shape of the Sonnax manual valve linkage is substantially different than the OE version but functions identically.

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout

Gm 6l45 vbl thumb
  • 104740 24k combo
  • 104740 24k

You need this if...

OE manual valve has broken