BMW E65 / E66 745i Starter motor replacement change DIY.
First of all removing your starter motor on this car is quite a big job and this isn't a full on guide, as quite frankly time was short to do the job, but from the pictures you'll get the idea of what is involved. Book time is around 5 hours!
First of all remove the battery cable from the jump start point in the engine bay, it can be found on the drivers side under a plastic cover.(19mm)
Then remove the engine cover.
Then remove the air filter tops and the plenum chamber(4x T30 screws) and the air flow meter plug and ducting.
With the car up in the air you can remove both undershields.
Then remove the passenger side catalytic converter, this will involve pulling the complete middle section of the exhaust back a little.
Next you'll need to remove the serpentine belt, the guide pulley that bolts to the alternator, remove the alternator bolts, remove the Power Assisted Steering pump bolts and drop the PAS pipe bracket off from the antiroll bar "D" bush bracket.(10mm)
Then unbolt the antiroll bar "D" bush bracket and drop it down as shown in the pictures.
With the PAS pump out of the way dropping the alternator out and removing the alternator main lead and plug is easier than it would be.
With both the alternator and the PAS pump out of the way you can get to the exhaust manifold nuts easier at the front of the engine.(11mm)
Next remove the exhaust manifold bolts(11mm) and carefully slide the exhaust manifold out from the engine bay.
Finally you can see the starter motor and the heat shield that helps to protect it.
Remove the heat shield(3x 10mm)
Then disconnect the starter motor solenoid and the main starter wire, and unbolt the starter motor from the engine/box(E14 socket)
Old and new starter motors.
The bits you should be left with once all apart.
And the collection of nuts and bolts. Not massive considering the job it is to change!
Now have fun putting it all back together.
Sent from BMW Forums.info. The thinking person's BMW forum.