SL 55 AMG (230.474) V8-5.5L SC (113.992) (2003)
6.
Remove fabric tape (circled area Figure 5) from wire harness up to rubber grommet.
7.
Remove SBC connector housing cover (A, Figure 6):
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Using a small screw driver, carefully pry cover (A) away from locking lugs (arrow) until it disengages.
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Repeat the process on opposite side.
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Remove the cover (A) from the housing (B).