expand_moreM10 × 50 screws without ribbing (class 10.9)
Torx screws
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
expand_moreM12 × 50 screws with ribbing (class 10.9)
Torx screws
99.57 lbf⋅ft99.57 lbf⋅ft135 N⋅m
Replace screws.
expand_moreTrack control arm lower
expand_moreAt the subframe
Front
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace nuts.
Rear
95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace nuts.
On stub axle
174.06 lbf⋅ft174.06 lbf⋅ft236 N⋅m
Replace nuts.
expand_moreUpper front transverse control arm
At the subframe
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace nut.
On stub axle
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace nut.
expand_moreUpper rear transverse control arm
At the subframe
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Replace nut.
On stub axle
118.01 lbf⋅ft118.01 lbf⋅ft160 N⋅m
Replace nut.
expand_moreWheels and tires
expand_moreTire pressure sensors
Torx screws
2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace the screw.
Union nuts
2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Wheel attachment
88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1998 BMW 7 Series user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and BMW warranty policy for your region. In some regions DIY service may invalidate your warranty.
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow BMW 7 Series service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 1998 BMW 7 Series you're not only saving money, but also also improving your technical skills and learning something new.
1998 BMW 7 Series generations
In 1998 BMW offered 2 generations of the 7 Series. Rear suspension fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.