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brownjeff
brownjeff, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 13886
Experience:  ASE Certified Technician, 17 years experience, Dealership Certified, Service Manager for 15 years
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Mercedes-Benz ML320 HOW DO I INSTALL THE SERPENTINE BELT ON

Customer Question

HOW DO I INSTALL THE SERPENTINE BELT ON A 1998 MERCEDES BENZ ML 320. I WOULD LIKE DIAGRAMS ON HOW TO AND THE PATH OF THE BELT ALSO. IS THERE A SPECIAL TOOL NEEDED FOR THIS INSTALLATION. I WOULD LIKE AS MANY DIAGRAMS FOR THIS ISSUE AND ALSO THERE IS NO DIAGRAM ON THE HOOD OF SHROUD
Submitted: 6 years ago.
Category: Mercedes
Expert:  brownjeff replied 6 years ago.
Hello and Welcome to JustAnswer,

My name is XXXXX XXXXX I am here to try and assist your with your question. Here is the information on the belt

graphic


Remove
1 Remove viscous fan (1)

NOTE: Right-hand thread!

2 Remove fan shroud (2).

NOTE: On Model 163 unscrew bolts at bottom of fan shroud.

3 Loosen and remove the poly-V-belt (3)

NOTE: For this step, swivel stud bolt (4) at tensioning pulley (5) in anti-clockwise direction Lock tensioning pulley with drift or pin (5 mm diameter ).

External Torx set: See "Special Tools" given below.

Inspect

4 Inspect belt pulley sections and tensioning device for damage and dirt
5 Inspect the poly-V-belt (3)

Install

6 Mount the poly-V-belt (3), then tighten

NOTE:

  • Do not use belt wax or any similar products.
  • Start at tensioning pulley in the numbered sequence of the respective running diagram: Running diagram of poly V-belt
7 Install fan shroud (2)
8 Install viscous fan (1)
Special Tools

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Customer: replied 6 years ago.
How do i remove shroud and fan
Expert:  brownjeff replied 6 years ago.
I will attach what information I have:

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1 Fit counterholder (1) on bolts of belt pulley (2), counterhold

NOTE: Belt pulley of coolant pump

2 Unscrew union nut at viscous fan (3)

NOTE:

  • Right-hand thread.
  • Installation: Use torque wrench with open-end wrench bit.
3 Unbolt fan at viscous clutch

NOTE: Installation: The installation position of the fan is preset through cast-on ribs at fan ring.

4 Install in the reverse order.