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E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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Old 07-04-2014, 12:18 PM
phaduman phaduman is online now
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Location: San Jose
Join Date: Aug 2009
Posts: 32
Mein Auto: 2007 E60 N52
torque specs confusion - tensioner pulley

dear members,

now that I have screwed up an expensive part due to over torquing, i am re-working my other bolts that I am about to torque (or just torqued and need to get new bolts to re-torque) to get to right spec. My investigations have led to multiple confusing data points, Bentley does't have some, others Bentley has double the spec than other references TIS e.g.)....

1. oil filter housing bolts (3) - no torque specs on Bentley
2. oil cooler 3 bolts - no torque specs on Bentley
3. Drive Belt tensioner bolt
* 25NM (18ft-lb) + 90-deg on bimmerpost
* Nothing on Bentley
4. idler pulley bolt (attaches to alternator)
* 80NM on Bentley (pg 121-24)
* 40NM on bimmerpost
5. rear differential filler plug - 60NM on x-drive units (Bentley), nothing for RWD cars

I am really surprised #4 torque specs are so different (double) between two references. And on so many others (#1, 2, 3), Bentley doesn't have any info.

Where do you refer to, to get actual specs? What would I do for 1-5?

thanks a lot
'07 525i black/black, Wife: '09 328i (ocean blue/chestnut-red/brown)
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Old 07-07-2014, 07:31 AM
tim330i's Avatar
tim330i tim330i is offline
Location: Boston
Join Date: Dec 2001
Posts: 5,422
Mein Auto: Ti Silver 03 M3
Most people just tighten those up to a reasonable amount by hand. You could call or email a shop to see what they do but I have a feeling they're going to simply say they do it until they're snug.

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