expand_moreM3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
Code range 11 mm
8.85–11.8 lbf⋅ft8.85–11.8 lbf⋅ft12–16 N⋅m
Code range 7 mm
2.58–3.69 lbf⋅ft2.58–3.69 lbf⋅ft3.5–5 N⋅m
Code range 9 mm
5.16–8.11 lbf⋅ft5.16–8.11 lbf⋅ft7–11 N⋅m
Front axle brake caliper
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Clean the components and do not grease.
Front axle brake caliper mounting support
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Front axle brake disc
11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Wheel speed sensor
5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
expand_moreFront axle steering
expand_moreTrack rod end on stub axle
M3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
expand_moreTrack rod end on track rod
M3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
expand_moreFront axle suspension
expand_moreShock-absorber piston rod
M3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
47.2 lbf⋅ft47.2 lbf⋅ft64 N⋅m
expand_moreSuspension strut
expand_moreM3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
Lower mounting
59.74 lbf⋅ft59.74 lbf⋅ft81 N⋅m
Replace screws.
On chassis
25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m
Replace nuts.
expand_moreWheel suspension
expand_moreStabiliser mounting at suspension strut
M3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
expand_moreTransverse control arm
expand_moreM3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
expand_moreAt the subframe
Front
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace nuts.
expand_moreSupport at the subframe
Rear
43.52 lbf⋅ft43.52 lbf⋅ft59 N⋅m
Replace screws.
On stub axle
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace nuts.
expand_moreWheel hub wheel bearing
Central nuts
213.89 lbf⋅ft213.89 lbf⋅ft290 N⋅m
expand_moreWheels and tires
expand_moreTire pressure sensors
expand_moreM3 3.2 with gasoline straight-6 3.2 L 338 HP engine (2001.4–2007.12)
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
81.13–95.88 lbf⋅ft81.13–95.88 lbf⋅ft110–130 N⋅m
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 BMW 3 Series M3 Convertible 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 3 Series M3 Convertible 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 2003 BMW 3 Series M3 Convertible you're not only saving money, but also also improving your technical skills and learning something new.
2003 BMW 3 Series M3 Convertible generations
In 2003 BMW offered 2 generations of the 3 Series M3 Convertible. Front suspension fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.