Theodore wroteCorrect: For M3's built before 4/29/08 the belt is routed over the (clockwise turning) power steering pump (and under the idler pulley). M3's with build dates after 4/29/08 the belt is routed under the (counter-clockwise turning) power steering pump (and over the idler pulley). This is because they changed the idler pulley design (see above posts for part numbers and pictures).
*Note: There are some E9X M3s out there with a replacement engines that may not meet the criteria above. Probably worth taking a look before you order just to be sure.
happydude wroteAh right, ok I see what the pictures are describing. Ok thank you!It’s based on the routing of the belt. Just look and see how yours is routed.
BimmerRob08 wroteYes you need the following two pulleys, you can save a lot vs BMW who forces you to buy the whole assembly and doesn't sell the pulley separately.Can all the pulleys on the levers be replaced instead of replacing the arm along with the pulley?
Theodore wrote
1 Production date before 4/29/08 BMW E9X M3 AC/power steering serpentine belt = Continental 6K1065
1 Production date on or after 4/29/08 BMW E9X M3 AC/power steering serpentine belt = Continental 6DK1100
2 BMW E9X M3 A/C Belt Tensioner Pulley Only = INA 5320557100
3 BMW E9X M3 A/C Belt Tensioner Strut Only 4/29/2008+ = INA F-239109.01
6 Built before 4/29/08 BMW E9X M3 deflection pulley (aka idler pulley) = INA 5320418100
6 Built on or after 4/29/08 BMW E9X M3 deflection pulley (aka idler pulley) = Only available from BMW 11287841531
1 BMW E9X M3 alternator/water pump serpentine belt = Continental 6K1460
2 BMW E9X M3 Alternator Belt Tensioner Pulley Only = INA 5320342100
3 BMW E9X M3 Alternator Belt Tensioner Strut Only = INA F-239110.04
BimmerRob08 wroteI got all my parts from FCP Euro when I did mine.Cool. So I have those diagrams also from RealOem. But what or who sells those pulleys separately? Nothing pulls up on BMWPartsDirect or other OEM outlets. Checked out the link you attached also. Thanks,
BimmerRob08 wroteYes the part number in the title is the BMW part # for other vehicles, you'll see the INA part number 5320342100 in the description. The pulley is the same that what we need, but the bolt and plastic cap is different which is why it wont show under fitment, so if you just remove those and throw them away, you will have a very low cost replacement pulley and not have to replace the full assembly.So first look on FCP and I input INA 5320342100 pulley and this comes up. Are these pulley's interchangeable between the model cars?
https://www.fcpeuro.com/BMW-parts/M3/?keywords=5320342100&year=2008&m=20&e=2548&t=6&b=9&d=1033&v=
tdott wroteI have ordered 2 pulleys alone at fcp euro.Yes the part number in the title is the BMW part # for other vehicles, you'll see the INA part number 5320342100 in the description. The pulley is the same that what we need, but the bolt and plastic cap is different which is why it wont show under fitment, so if you just remove those and throw them away, you will have a very low cost replacement pulley and not have to replace the full assembly.
