If you are at 100k or beyond I would do the coolant pump, the belts and take a hard look at the vibration damper. At that end of the block there is also the CCV hose, BMW asks quite a lot of money for a complete assembly. AARod sells only the flexible bit for about $20.


The 35D operating temp idling can be very low but at highway speeds it needs to be well over 80c. If you are consistently below 80, then better replace it.

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2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.