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BMW E39 Rear Rearward Upper Link Replacement
 
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Pelican Technical Article:

BMW E39 Rear Rearward Upper Link Replacement

Kerry Jonsson

Time:

2 hours2 hrs

Tab:

$150

Talent:

***

Tools:

21mm, 18mm wrench or socket with ratchet, 7mm wrench or vise grip pliers

Applicable Models:

BMW 525i Sedan/Wagon (2001-03)
BMW 528i Sedan/Wagon (1997-00)
BMW 530i Sedan (2001-03)
BMW 540i Sedan/Wagon (1997-03)

Parts Required:

Rear rearward upper link, fasteners

Hot Tip:

Use a vise grip on the ball joint shaft to hold it still while loosening the mounting nut.

Performance Gain:

Tighter feel in corners, eliminate vibration and increase tire life

Complementary Modification:

Get a four wheel alignment when job is completed

BMW is known for the sporty handling of their sedans. This is in part achieved by using suspension links to correct the tire position as it moves through its suspension travel. These links change the relative position of the tires contact patch with the road to help maintain traction and suspension feedback. In this tech article we are going to review all of the steps required to replace the rear rearward upper link.

The procedure for replacing the rear rearward upper links is the same for both the left and right side. While we will be showing instructions from either side the same steps have to be followed on both sides of the car.

Lift and support rear axle of the vehicle. You do have to remove the tires to perform this job. See our tech article on jacking up and supporting your vehicle and remove the rear tires.

This photo illustrates the right side wheel well.
Figure 1

This photo illustrates the right side wheel well. Working at the rear rearward upper link sub-frame mount remove both 18mm mounting nut (yellow arrow) and bolt (green arrow) with two wrenches. Sockets are possible but may be a tight fit.

Remove the ABS wheel speed sensor wiring from its clip on the rear rearward upper link.
Figure 2

Remove the ABS wheel speed sensor wiring from its clip on the rear rearward upper link.

This photo illustrates the left side rear rearward upper link.
Figure 3

This photo illustrates the left side rear rearward upper link. Remove a second ABS wheel speed sensor wiring harness mount from the link.

This photo illustrates the right side rear rearward upper mount where the ball-joint socket attaches to the spindle.
Figure 4

This photo illustrates the right side rear rearward upper mount where the ball-joint socket attaches to the spindle. Use a 7mm wrench to hold the ball-joint shaft still while you use a 21mm wrench to remove the mounting nut. You may need to use a pair of vise grips to hold the ball-joint shaft because the mounting nut is very tight and you don't want the shaft to spin around while trying to thread off the nut.

Once the nut is removed the ball-joint should be pulled out of the spindle in the direction of the blue arrow.
Figure 5

Once the nut is removed the ball-joint should be pulled out of the spindle in the direction of the blue arrow. Installation is the reverse of the removal procedures. Fit the rear rearward upper link into the sub-frame mount, insert the fasteners and tighten. Fit the ball-joint into the spindle end and tighten the fastener while holding the ball-joint shaft.

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Page last updated: Sat 12/3/2016 02:06:15 AM