How do you remove pulley from BMW 5 Series?

How do you remove pulley from BMW 5 Series?

If you only want to replace the pulley use a T45 Torx socket to remove the tensioner pulley and pull the pulley off the tensioner. If you want to remove the whole tensioner remove the two 13mm bolts (green arrows) that mount the tensioner to the engine block.

How to remove idler pulley on BMW E39?

Working at the driver side accessory drive belt remove the 13mm mounting bolt for the idler pulley. Pull the pulley and mounting bolt out in the direction of the blue arrow. If you only want to replace the pulley use a T45 Torx socket to remove the tensioner pulley and pull the pulley off the tensioner.

Where is the tensioner on a BMW 5 Series?

Notice the AC belt (green arrow) is running off the front of the crankshaft pulley and the accessory drive belt (yellow arrow) is running off the backside of the crankshaft pulley. Working off the AC belt; identify the AC belt tensioner (green arrow).

What causes a BMW 5 Series pulley to squeak?

If your tensioner gets weak it allows the belt to slip on the driven pulley and causes it to squeak. If a idler pulley goes bad the bearing inside can fail.

Where are the belts located on a BMW?

BMW’s longitudinal engine layout places the belts at the front and center of the engine bay. To get to them, you’ll remove the fan assembly and the intake airbox. Once you can access the drive belt system, you’ll only need to remove two bolts to remove the parts that you’re replacing.

What happens if the pulley on a BMW goes bad?

Worn out BMW pulley can be loud, annoying, or completely fail and seize. A failed BMW serpentine belt can leave you without accessories like air conditioning, power steering, or stranded overheating.

How much is a pulley belt for a BMW?

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What happens if a BMW serpentine belt fails?

A BMW’s belts & pulleys take the energy from the engine to power auxiliary BMW systems. Worn out BMW pulley can be loud, annoying, or completely fail and seize. A failed BMW serpentine belt can leave you without accessories like air conditioning, power steering, or stranded overheating.