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Replacing Your Accessory Drive Belts
 
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Pelican Technical Article:

Replacing Your Accessory Drive Belts

Tom Morr

Time:

1 hour1 hr

Tab:

$15 to $40

Talent:

*

Tools:

E10 Torx driver

Applicable Models:

Mercedes-Benz SLK230 (1998-04)

Parts Required:

New drive belts

Hot Tip:

Work on a cold car

Performance Gain:

Won't leave you stranded at the side of the road

Complementary Modification:

New tensioner

You should check your belts every six months for wear, cracking, fraying, delaminating and drying out. If your belt shows any of these signs you should replace it. I recommend you buy two extra belts and always keep the extra ones in the car. You don't want to be stranded on the side of the road for the lack of a spare drive belt.

The belts on our project car where one of the worse looking belts I have ever seen on a running car. If your belt looks like the one pictured here you should seriously change it ASAP.

The Mercedes SLK230K has two belts and two separate belt tensions. One belt is used to run the Kompressor and alternator while the main belt is used to drive the water pump, power steering and other accessories.

While you can replace just the Kompressor belt by itself if you need to remove or replace the main belt you will need to remove the Kompressor belt first.

Take note of the route of the belt or use the handy reference picture below.

Kompressor Belt

Let the car cool so you don't have to work around a hot engine. With the hood open all you need is an E10 reverse Torx wrench and a long enough section of pipe to place over the wrench and give you some leverage. Locate the tensioner and using the Torx wrench and pipe turn it counter-clockwise. You can now slip the belt off the tensioner and install the new one.

There is a picture below that shows you the routing of the belt that you can use to install the new one.

Main Belt

Take note of the route of the belt or use the handy reference picture below.

Locate the tensioner and using the E10 Torx driver turn the nut on the wheel counter-clockwise. You can now slip the belt off the tensioner.

Installation is the reverse of removal. Make sure the belt is properly seated on all the pulleys and that it follows the right path.

Figure 1

Inspect your belts for wear and tear every six months and never let a belt get to this point

This photo illustrates the route of the Kompressor belt.
Figure 2

This photo illustrates the route of the Kompressor belt. Note: the shroud has been removed for thePicture

With the hood open all you need is an E10 reverse Torx wrench and a long enough section of pipe to place over the wrench and give you some leverage.
Figure 3

With the hood open all you need is an E10 reverse Torx wrench and a long enough section of pipe to place over the wrench and give you some leverage. Locate the tensioner and using the Torx wrench and pipe turn it counter-clockwise. You can now slip the belt off the tensioner and install the new one.

This photo illustrates the route of the main Drive belt.
Figure 4

This photo illustrates the route of the main Drive belt. Note: the shroud has been removed for thePicture

Locate the tensioner and using the E10 Torx driver turn the nut on the wheel counter-clockwise.
Figure 5

Locate the tensioner and using the E10 Torx driver turn the nut on the wheel counter-clockwise. You can now slip the belt off the tensioner. It is a tight fit but doable.

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Page last updated: Sat 12/3/2016 02:27:08 AM