BMW 5251 Service Manual page 82

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-6val and Installation
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Remove intake manifold mounting hardware (arrows).
NOTE-
M52 TU engine shown. M52 and M54 engines are similar.
Liit up manifold just enough to remove positive cables from
starter motor terminal 50 (arrow).
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Remove intake manifold from cylinder head while carefully
checking for electrical connections, tie wraps, and hoses.
CAUTION-
Stuff clean rags into open intake ports to prevent any parts
from falling into the engine intake.
4
Remove fastener (A) and harness connector (B) from
alternator.