5 Series E39 525tds (M51) TOUR
00 00 Excerpt from company standard BMW GS 90003-2
Type
Thread
Tightening specification
Measure
If there are no cross-references to
tightening torques in the repair
instructions, the excerpts from the
company standard
BMW GS 90003-2
must be observed.
There are different screws / nuts with
surface color / (surface coating) -
yellow (ZN) and silver (ZNS)
The maximum tightening torques
are:
Surface color yellow (ZN):
Applicable only to shank screws with
metric coarse- and fine-pitch threads
according to DIN 13-28 and nuts
with nut height 0.8 x d according
to DIN 934 and exclusively for a
µ
tot = 0.125 (screws phosphatized,
nuts without subsequent treatment
or galvanized. Lubrication condition:
unlubricated and also oiled).
Surface color silver (ZNS):
Applicable only to shank screws with
metric coarse- and fine-pitch threads
according to DIN 13-28 and nuts
with nut height 0.8 x d according
to DIN 934 and exclusively for a
spread of
µ
= 0.09 to 0.15 (screws
cadmium-plated, nuts without
subsequent treatment or galvanized.
Lubrication condition: unlubricated
and also oiled).
The values specified in this table
apply to all screw connections
conforming to the aforementioned
conditions.
AZD Excerpt from company standard BMW GS 90003-2
BMW AG - TIS
20.02.2013 19:16
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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