For 2003 5 Series Sedan Fourth generation LCI BMW recommends to use: and genuine OEM cooling fluid with a part number: 81 22 9 407 454. To select the right cooling fluid see the table below.

How much cooling fluid you need to put into 2003 5 Series Sedan depends on the engine installed, and some other conditions listed below.

in your garage to make future searches easy.

Condition Volume
BMW diesel straight-6 2.5 L M51 D25 (256T1) 114 HP 10.57 US qt.
Part number: 81 22 9 407 454
BMW diesel straight-4 2.0 L M47 D20 (204D1) 134 HP 9.93 US qt.
Part number: 81 22 9 407 454
BMW diesel straight-6 2.5 L M51 D25 (256T1) 141 HP 10.57 US qt.
Part number: 81 22 9 407 454
BMW diesel straight-6 2.5 L M57 D25 (256D1) 161 HP 9.72 US qt.
Part number: 81 22 9 407 454
BMW diesel straight-6 2.9 L M57 D30 (306D1) 190 HP 10.25 US qt.
Part number: 81 22 9 407 454
BMW gasoline V8 3.5 L M62 B35 (358S2) 241 HP 13.21 US qt.
Part number: 81 22 9 407 454
BMW gasoline V8 4.4 L M62 B44 (448S2) 282 HP 13.21 US qt.
Part number: 81 22 9 407 454
BMW gasoline V8 4.4 L M62 B44 (448S1) 282 HP 13.21 US qt.
Part number: 81 22 9 407 454
All other modifications 11.1 US qt.
Part number: 81 22 9 407 454

Changing cooling fluid it's a bit tricky process but it can be done by yourself. The whole process will take 12 hours because you need to cool down the engine, and it will save you up to $150.

To replace coolant in 2003 BMW 5 Series Sedan first you need to flush old fluid. Start with a cool engine. Drain the overflow reservoir first, then open the radiator cap, and open the radiator drain cock. After that check for cooling fluid drain plugs on the engine block. If your car have those unscrew them and drain coolant from the engine block. If you want to clean the system pour coolant cleaner and start the engine. Read the coolant cleaner manual and follow the product directions. Then flush coolant cleaner as you've flushed coolant before. The final step is to pour new coolant.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 BMW 5 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.

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 5 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 5 Series Sedan you're not only saving money, but also also improving your technical skills and learning something new.

2003 BMW 5 Series Sedan generations

In 2003 BMW offered 2 generations of the 5 Series Sedan. Cooling fluid capacity may vary in different generations. Be sure that you are looking at the rigt modification.

BMW 5 Series Sedan Fourth generation LCI model years

Units:
facebook twitter reddit linkedin messenger whatsapp telegram skype email chat