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Damper Pulley Replacement on BMW 3 Series E9X M57 Engine

Written By: laurent.immo13003 (and one other contributor)
  • Comments: 11
  • Favorites: 0
  • Completions: 1

Difficulty

Moderate

Steps

15

Time Required

00:30:00

Sections

2

Flags

1

Ce tutoriel a été créé par la communauté

Ce tutoriel a été créé par la communauté

User contributed

Introduction

Intervention carried out on a 3.0 diesel M57 engine.

ATTENTION!!!

Steps 7, 8, 9 and 10 come AFTER step 15.

  1. The belts and rollers are located at the front of the vehicle just behind the engine fan. The belts and rollers are located at the front of the vehicle just behind the engine fan.

    • The belts and rollers are located at the front of the vehicle just behind the engine fan.

    Edit

  2. Unscrew the 3 screws Remove the intake sleeve.

    • Unscrew the 3 screws

    • Remove the intake sleeve.

    Edit

  3. Unplug the fan. Remove the screw with a Torx T25.

    • Unplug the fan.

    • Remove the screw with a Torx T25.

    • Under the vehicle, remove the screw that holds the exchanger to the fan with a Torx T25.

    • Remove the fan from the top by pulling on it.

    Edit

  4. The 1st belt is an elastic belt (Damper pulley/power steering pump). The 2nd belt is longer so mark its path carefully before removing it. The 2nd belt is longer so mark its path carefully before removing it.

    • The 1st belt is an elastic belt (Damper pulley/power steering pump).

    • The 2nd belt is longer so mark its path carefully before removing it.

    Edit

  5. The 1st belt can be removed by cutting it if you are not reusing it or by leveraging it with a screwdriver, being careful not to damage the cooling radiator or the grooves of the Damper pulley. Automatic tensioner roller

    • The 1st belt can be removed by cutting it if you are not reusing it or by leveraging it with a screwdriver, being careful not to damage the cooling radiator or the grooves of the Damper pulley.

    • Automatic tensioner roller

    • Roller roller

    • Tensioner roller fixing screw

    • To remove the 2nd belt, insert a male T60 Torx socket into the recess provided for this purpose then tighten counterclockwise.

    • While maintaining pressure on the tensioner pulley, remove the belt.

    Edit

  6. Remove the tensioner roller fixing screw with a T40 Torx key. To remove the idler roller, remove the protective cover using a small flat screwdriver then remove the screw with a 5mm Allen key. To remove the idler roller, remove the protective cover using a small flat screwdriver then remove the screw with a 5mm Allen key.

    • Remove the tensioner roller fixing screw with a T40 Torx key.

    • To remove the idler roller, remove the protective cover using a small flat screwdriver then remove the screw with a 5mm Allen key.

    Edit

  7. Old coins Broken tensioner roller

    • Old coins

    • Broken tensioner roller

    • Pin on the new tensioner roller.

    • Do not remove the pin until the roller is secured to the motor.

    Edit

  8. Tighten the idler roller with a BTR 5. Leaving the pin in and making sure it won't jump, tighten the tensioner pulley with a T40 Torx. Place the belt, making sure it is properly seated in the grooves of the various pulleys.

    • Tighten the idler roller with a BTR 5.

    • Leaving the pin in and making sure it won't jump, tighten the tensioner pulley with a T40 Torx.

    • Place the belt, making sure it is properly seated in the grooves of the various pulleys.

    • You will have no trouble placing the belt since the tensioner roller is pinned.

    • Loose belt

    • Using a Torx T60, loosen 1/8 turn to release the pressure on the pin, remove the pin and allow the roller to return to position.

    • once the roller is in position without the pin the tension on the belt is automatically correct.

    • Tight belt

    Edit

  9. Tool recommended by BMW for reassembling elastic belts. Reference 11 0 331. I do not recommend this tool because it is no longer possible to turn the Damper pulley afterwards. Tool to use

    • Tool recommended by BMW for reassembling elastic belts. Reference 11 0 331.

    • I do not recommend this tool because it is no longer possible to turn the Damper pulley afterwards.

    • Tool to use

    • Tool recommended by BMW to turn the Damper pulley (if pulley fixed by 4 screws). Reference 11 6 480.

    • So here is what you have to do: present the belt completely on the power steering pump then on top of the Damper pulley, then fix the belt on the pulley using the tool which will hold it in a vice then turn the Damper pulley with tool 11 6 480.

    • Remember to put the vehicle in neutral to be able to turn the Damper pulley.

    Edit

  10. New parts in place. New parts in place.

    • New parts in place.

    Edit

  11. To block the engine, you have to pull the flywheel. To remove the cap, simply pull on it. Use the specific BMW pin for M57 engine reference 11 6 080.

    • To block the engine, you have to pull the flywheel.

    • To remove the cap, simply pull on it.

    • Use the specific BMW pin for M57 engine reference 11 6 080.

    • If you make one yourself, make sure it is at least 16cm long.

    • Starter

    • Pin plug

    • Girl

    Edit

  12. Unscrew the 4 screws holding the pulley with a Torx E12 socket.

    • Unscrew the 4 screws holding the pulley with a Torx E12 socket.

    • Be careful that the pulley does not fall onto the air conditioning line located directly below.

    Edit

  13. Clean the pulley surface as best you can. Clean the pulley surface as best you can.

    • Clean the pulley surface as best you can.

    Edit

  14. Old pulley New pulley Creaking rubber on old pulley.

    • Old pulley

    • New pulley

    • Creaking rubber on old pulley.

    Edit

  15. Reassembly is carried out in reverse order.

    • Reassembly is carried out in reverse order.

    Edit
Finish Line

One other person completed this guide.

Author

with 1 other contributor

laurent.immo13003

Member since: 03/03/2016

12,959 Reputation

155 Guides authored

7 Comments

yes, the tightening torque of the damper pulley is 10 daN.m + 150° (source Atelio doc°

rmca - Reply

No, not 10Nm!! The tightening torque of the damper pulley is 40Nm+120°

Alexis Marthe-Rose - Reply

Hello

For BMW series 1 year 2010, what is the tightening of the 4 screws please?

hamadiothmane6 -

Hello, to remove the pulley I used a bolt remover with E12 socket and to replace the elastic belt I used E12 torxs to drive the pulley. The tightening of the torxs is indicated on the pulley 10nm

stephane gregoire - Reply

Hello, great tutorial, just missing the tightening torques, but otherwise it's really well explained. Thank you

Romain Jumeaux - Reply

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