h2. Oil filter housing, removing and installing (M52, M52 TU, M54 engines)
* Disconnect battery negative cable.
* Loosen oil filter cover to allow oil in filter housing to flow into oil pan.
* Remove alternator drive belt and unbolt alternator from oil filter housing bracket.
* Empty power steering reservoir tank and then unbolt tank and move to one side (lines remain connected).
* Unbolt power steering pump from oil filter housing bracket pump (lines remain connected).
* Remove alternator drive belt tensioner.
* Disconnect harness connector from oil pressure switch.
* Disconnect harness connector for oil temperature switch.
* Disconnect oil pressure line for VANOS adjustment unit from oil filter housing.
* Remove bolts (*arrows*) and remove complete oil filter housing bracket.
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* Remove old profile gasket and install new gasket (*arrow*).
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During installation, be sure to align bracket to locating dowels (*arrows*).
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Remove ignition coils:
\* Disconnect ignition coil harness connectors.
\* Remove coil mounting fasteners.
\* Remove coils.
\* Remove ground straps.
\* Set coil harness to side of engine compartment.
{note:title=CAUTION}Note location of all ground wires. Failure to reinstall grounds can result in permanent damage to engine control module or ignition system components.
{note}Remove cylinder head cover mounting fasteners and remove cylinder head cover.
{info:title=NOTE}In order to reinstall cylinder head cover mounting bolt insulator and gaskets in their original locations, make note of their arrangement during removal.
{info}
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Installation is reverse of removal. Keep in mind the following:
\* Make sure sealing surfaces are clean and free of old gasket material.
\* Replace cylinder head cover gasket, as well as rubber insulators and seals as necessary.
\* Use a small amount of 3-Bond®1209 adhesive or equivalent at corners (*arrows*) of half-moon cut-outs at back of cylinder head.
\* Seat gasket and seal corners in front of cylinder head at VANOS unit.
\* Inspect cylinder head cover mounting screw assembly rubber seals. Replace if rubber is cracked or brittle.
{panel:title=Tightening torque|borderColor=#999|titleBGColor=#eee|bgColor=#fff}
Cylinder head cover to cylinder head . . . {color:red}10 NM (89 in-lb){color}
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\_Cylinder Head\_
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h6. \_\[Click here to view/download PDF\|PDF^rbi-errata-b305-116-8.2006-05-26.pdf\|Document appears as images on this page and pdf source can be saved by clicking on this link.\]\_
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