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Torque Values

Most torque values in this manual appear on the relevant page of operation description.

Due to impracticalities, some groups have been covered in tables rather than on individual pages. Those groups are accessed from here.

Important note :
All torque measurements in this manual that have references to bolt sizes, e.g. 10mm, are referring to the size of the SHAFT of the bolt, not the wrench size required for installation of the bolt. This is opposed to all repair information that gives wrench sizes of bolts. Confusing the two could have catastrophic results.

Group 11 - Engine torque values

If torque values for specific fasteners are not shown, use the following table for correct value. See note above about bolt sizes

Bolt size
and thread		 Bolt grade
5.6 5.8 6.6 6.8 6.9 8.8 10.9 12.9
4mm 1.3 Nm 1.6 Nm 1.8 Nm 2.1 Nm 2.4 Nm 2.9 Nm 4.1 Nm 4.9 Nm
5mm 2.7 Nm 3.2 Nm 3.6 Nm 4.3 Nm 4.8 Nm 5.9 Nm 8.3 Nm 10 Nm
6mm 4.7 Nm 5.6 Nm 6.2 Nm 7.5 Nm 8.4 Nm 9.9 Nm 14 Nm 16.5 Nm
8mm 11 Nm 14 Nm 15 Nm 18 Nm 20 Nm 24 Nm 34 Nm 40 Nm
8mm x 1 12 Nm 14.5 Nm 16 Nm 19.5 Nm 22 Nm 26 Nm 36 Nm 44 Nm
10mm 23 Nm 27 Nm 30 Nm 36 Nm 40 Nm 47 Nm 66 Nm 79 Nm
10mm x 1 25 Nm 30 Nm 34 Nm 40 Nm 45 Nm 54 Nm 75 Nm 91 Nm
12mm 39 Nm 47 Nm 52 Nm 62.5 Nm 70 Nm 82 Nm 115 Nm 140 Nm
12mm x 1.5 41 Nm 49 Nm 54.5 Nm 65.5 Nm 73.5 Nm 87 Nm 123 Nm 147 Nm
14mm 62 Nm 74.5 Nm 82.5 Nm 99 Nm 110 Nm 130 Nm 180 Nm 220 Nm
14mm x 1.5 67 Nm 80.5 Nm 89.5 Nm 107 Nm 120 Nm 143 Nm 200 Nm 240 Nm
16mm 94.5 Nm 113 Nm 126 Nm 150 Nm 170 Nm 200 Nm 280 Nm 340 Nm
16mm x 1.5 101 Nm 121 Nm 135 Nm 162 Nm 182 Nm 216 Nm 303 Nm 364 Nm
18mm 130 Nm 166 Nm 174 Nm 209 Nm 235 Nm 280 Nm 390 Nm 470 Nm
18mm x 1.5 147 Nm 176 Nm 195 Nm 234 Nm 264 Nm 313 Nm 440 Nm 527 Nm
20mm 184 Nm 220 Nm 245 Nm 295 Nm 330 Nm 390 Nm 550 Nm 660 Nm
20mm x 1.5 204 Nm 245 Nm 272 Nm 326 Nm 367 Nm 435 Nm 612 Nm 734 Nm
 

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E30 M3 Repair Manual V2.7.  Copyright ©1999-2001 Koala Motorsport & Brett Anderson