2003 BMW 3 Series Sedan Fourth generation LCI Brake System Specifications
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| Condition | Value |
|---|
expand_moreFront axle brake disc diameter
expand_more318 i with gasoline straight-4 2.0 L 141 HP engine (2001.9–2005.2)
| With increased useful load | 11.81 in |
| Otherwise | 11.26 in |
| 320 d with diesel straight-4 2.0 L 148 HP engine (2001.9–2005.2) | 11.81 in |
expand_more320 i with gasoline straight-6 2.2 L 168 HP engine (2000.9–2005.2)
| With increased useful load | 11.81 in |
| Otherwise | 11.26 in |
expand_more325 i with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| With increased useful load | 1.07 ft |
| Otherwise | 11.81 in |
| 330 d with diesel straight-6 2.9 L 181 HP engine (1999.10–2005.2) | 1.07 ft |
| 330 d with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 1.07 ft |
| 330 i with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 1.07 ft |
| 330 xd with diesel straight-6 2.9 L 181 HP engine (2000.6–2005.2) | 1.07 ft |
| 330 xd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 1.07 ft |
| 330 xi with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 1.07 ft |
| All other modifications | 11.26 in |
expand_moreFront axle brake disc thickness
expand_more325 i with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| With increased useful load | 0.98 in |
| Otherwise | 0.87 in |
| 330 d with diesel straight-6 2.9 L 181 HP engine (1999.10–2005.2) | 0.98 in |
| 330 d with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.98 in |
| 330 i with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.98 in |
| 330 xd with diesel straight-6 2.9 L 181 HP engine (2000.6–2005.2) | 0.98 in |
| 330 xd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.98 in |
| 330 xi with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.98 in |
| All other modifications | 0.87 in |
expand_moreFront axle brake disc minimal thickness
expand_more325 i with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| With increased useful load | 0.92 in |
| Otherwise | 0.8 in |
| 330 d with diesel straight-6 2.9 L 181 HP engine (1999.10–2005.2) | 0.92 in |
| 330 d with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.92 in |
| 330 i with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.92 in |
| 330 xd with diesel straight-6 2.9 L 181 HP engine (2000.6–2005.2) | 0.92 in |
| 330 xd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.92 in |
| 330 xi with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.92 in |
| All other modifications | 0.8 in |
expand_moreFront axle brake lining minimal thickness
| Without backing plate | 0.12 in |
expand_moreRear axle brake disc diameter
| 318 d with diesel straight-4 2.0 L 114 HP engine (2001.9–2003.3) | 10.87 in |
| 318 d with diesel straight-4 2.0 L 114 HP engine (2003.3–2005.2) | 10.87 in |
expand_more318 i with gasoline straight-4 2.0 L 141 HP engine (2001.9–2005.2)
| With increased useful load | 11.57 in |
| Otherwise | 10.87 in |
| 320 d with diesel straight-4 2.0 L 148 HP engine (2001.9–2005.2) | 11.57 in |
expand_more320 i with gasoline straight-6 2.2 L 168 HP engine (2000.9–2005.2)
| With increased useful load | 11.57 in |
| Otherwise | 10.87 in |
expand_more325 i with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| Safety vehicle | 1.05 ft |
| Otherwise | 11.57 in |
expand_more325 xi with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| With increased useful load | 1.05 ft |
| Otherwise | 11.57 in |
| 330 d with diesel straight-6 2.9 L 181 HP engine (1999.10–2005.2) | 1.05 ft |
| 330 d with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 1.05 ft |
| 330 i with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 1.05 ft |
| 330 xd with diesel straight-6 2.9 L 181 HP engine (2000.6–2005.2) | 1.05 ft |
| 330 xd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 1.05 ft |
| 330 xi with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 1.05 ft |
expand_moreAll other modifications
| With increased useful load | 10.87 in |
| Otherwise | 11.02 in |
expand_moreRear axle brake disc thickness
| 318 d with diesel straight-4 2.0 L 114 HP engine (2001.9–2003.3) | 0.75 in |
| 318 d with diesel straight-4 2.0 L 114 HP engine (2003.3–2005.2) | 0.75 in |
| 318 i with gasoline straight-4 2.0 L 141 HP at 6200 RPM, 200 N⋅m at 3600 RPM engine (2001.9–2005.2) | 0.75 in |
| 318 i with gasoline straight-4 2.0 L 141 HP engine (2001.9–2005.2) | 0.75 in |
| 320 d with diesel straight-4 2.0 L 148 HP engine (2001.9–2005.2) | 0.75 in |
expand_more320 i with gasoline straight-6 2.2 L 168 HP engine (2000.9–2005.2)
| Internally ventilated brake discs | 0.75 in |
expand_more325 i with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| Internally ventilated brake discs | 0.75 in |
| With increased useful load | 0.87 in |
| 330 d with diesel straight-6 2.9 L 181 HP engine (1999.10–2005.2) | 0.87 in |
| 330 d with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.87 in |
| 330 i with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.87 in |
| 330 xd with diesel straight-6 2.9 L 181 HP engine (2000.6–2005.2) | 0.87 in |
| 330 xd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.87 in |
| 330 xi with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.87 in |
expand_moreAll other modifications
| Internally ventilated brake discs | 0.75 in |
| Otherwise | 0.39 in |
expand_moreRear axle minimal brake disc thickness
| 318 d with diesel straight-4 2.0 L 114 HP engine (2001.9–2003.3) | 0.69 in |
| 318 d with diesel straight-4 2.0 L 114 HP engine (2003.3–2005.2) | 0.69 in |
| 318 i with gasoline straight-4 2.0 L 141 HP at 6200 RPM, 200 N⋅m at 3600 RPM engine (2001.9–2005.2) | 0.69 in |
| 318 i with gasoline straight-4 2.0 L 141 HP engine (2001.9–2005.2) | 0.69 in |
| 320 d with diesel straight-4 2.0 L 148 HP engine (2001.9–2005.2) | 0.69 in |
expand_more320 i with gasoline straight-6 2.2 L 168 HP engine (2000.9–2005.2)
| Internally ventilated brake discs | 0.72 in |
expand_more325 i with gasoline straight-6 2.5 L 189 HP engine (2000.9–2005.2)
| Internally ventilated brake discs | 0.69 in |
| With increased useful load | 0.8 in |
| 330 d with diesel straight-6 2.9 L 181 HP engine (1999.10–2005.2) | 0.8 in |
| 330 d with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.8 in |
| 330 i with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.8 in |
| 330 xd with diesel straight-6 2.9 L 181 HP engine (2000.6–2005.2) | 0.8 in |
| 330 xd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2003.3–2005.2) | 0.8 in |
| 330 xi with gasoline straight-6 3.0 L 228 HP engine (2000.6–2005.2) | 0.8 in |
expand_moreAll other modifications
| Internally ventilated brake discs | 0.69 in |
| Otherwise | 0.33 in |
expand_moreRear axle brake drum diameter
| Parking brake | 6.3 in |
expand_moreRear axle minimal brake lining thickness
expand_moreParking brake
| Without backing plate | 0.059 in |
expand_moreService brake
| Without backing plate | 0.12 in |
Brake system is the most important system in your 2003 3 Series Sedan. Check pads and disks from time to time and replace them as they worn below minimum thickness allowed by BMW.
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 Sedan 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.
Table of Contents
- Air Conditioning Compressor Oil Capacity
- Air Conditioning Refrigerant Capacity
- Automatic Transmission Fluid Capacity
- Axle Oil Capacity
- Brake Fluid Capacity
- Cooling Fluid Capacity
- Engine Oil Capacity
- Fluid and Lubricant Specifications
- Gearbox Oil Capacity
- Manual Transmission Oil Capacity
- Steering Fluid Capacity
- Brake System Specifications
- Chassis Specifications
- Cooling System Specifications
- Drive Belts Specifications
- Electrical System Specifications
- Emission
Conquer your fears and never give up!
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 Sedan 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 Sedan you're not only saving money, but also also improving your technical skills and learning something new.
BMW 3 Series Sedan Fourth generation LCI model years
logo_bmw 2001logo_bmw 2002-
logo_bmw 2003 logo_bmw 2004logo_bmw 2005