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BMW Hood Trunk Strut Replacement
 
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Pelican Technical Article:

BMW Hood Trunk Strut Replacement

Nick Czerula

Time:

1 hours1 hrs

Tab:

$

Talent:

**

Tools:

flathead screwdriver

Applicable Models:

 
BMW E90 3-Series (2006-11)
BMW E92 3-Series (2007-13)
BMW E93 3-Series (2007-13)

Parts Required:

Hood and Trunk struts

Performance Gain:

Hood or trunk will stay up

Complementary Modification:

Replace ball ends

The hood and trunk lift struts hold the weight of the hood / trunk lid when you open it. When they fail, the hood will no longer stay open without additional support.

Hood Lift Struts:
Inspect the area where the strut rod goes into the hydraulic cylinder.
Figure 1

Inspect the area where the strut rod goes into the hydraulic cylinder. If this area is wet or shows sign of a fluid leak, replace the lift struts. (green arrow) Support the hood with a prop. This will prevent hood from closing or possibly hitting you in the head during this repair.

Use a small flathead screwdriver and lever the retaining clip to end of ball socket.
Figure 2

Use a small flathead screwdriver and lever the retaining clip to end of ball socket. (green arrow)

Push the retaining clip to the end of the socket as noted above.
Figure 3

Push the retaining clip to the end of the socket as noted above. The green arrow points to where you will stop. You do not have to remove the retaining clip. Top of strut shown, repeat for bottom.

Pull the lift strut off the ball end.
Figure 4

Pull the lift strut off the ball end. (green arrow) You can see the paint is worn off the ball end. If you would like, you can replace or repaint the ball end. I usually leave it as is and apply a small amount of white lithium grease to ball end before installing the new lift strut. Snap new lift strut into place, give it a tug and be sure it is properly seated. Check that retaining clips are engaged, now you can replace the other side.

Trunk Lift Struts:
Inspect the area where the strut rod goes into the hydraulic cylinder.
Figure 5

Inspect the area where the strut rod goes into the hydraulic cylinder. If this area is wet or shows sign of a fluid leak, replace the lift struts. (green arrow) Support the trunk lid with a prop. This will prevent the trunk lid from closing or possibly hitting you in the head during this repair.

Use a small flathead screwdriver and lever the retaining clip to end of ball socket.
Figure 6

Use a small flathead screwdriver and lever the retaining clip to end of ball socket. (green arrow) Push the retaining clip to the end of the socket as noted above. The green arrow points to where you will stop. You do not have to remove the retaining clip. Top of strut shown, repeat for bottom.

Pull the lift strut off the ball end.
Figure 7

Pull the lift strut off the ball end. (green arrow) You can see the paint is worn off the ball end. If you would like, you can replace or repaint the ball end. I usually leave it as is and apply a small amount of white lithium grease to ball end before installing the new lift strut. Snap new lift strut into place, give it a tug and be sure it is properly seated. Check that retaining clips are engaged, now you can replace the other side.

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Comments and Suggestions:
Jason Comments: Whats the part number or name for the plastic trim on the bottom of the tank support strut seen in figure 6 and 7? Mine accidentally got crushed but I cant find the part.
September 23, 2016
  Followup from the Pelican Staff: I’m not the best with part numbers.

Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Alex Comments: I have two questions. First, what is the best way to get the retaining clip back on if it comes off completely? And second, I bought new trunk struts and now the trunk kind of slams open; it only stops once it hits the stopper and I can see the stress it puts on the mounts. These are supposed to bring it up slowly and stop just before the stopper right? Thanks for your help!
February 13, 2016
  Followup from the Pelican Staff: When the clip comes off, I just push it back on. The struts should support the trunk lid when you open it. - Nick at Pelican Parts  
MUrhino Comments: This is amazingly easy...maybe 10 min to do both the hood and trunk. I wish I would've done this swap about 3 years ago....the Hood and Trunk want to jump open w/ hardly any effort after the swap!
July 22, 2015
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
Dave Comments: I have a year 2006 e90 and I would like to replace the trunk/booth completely with yaer 2009 model. Does 2009 model booth similar to the year 2006 model?
February 8, 2015
  Followup from the Pelican Staff: They are the same generation models, so the parts should fit. - Nick at Pelican Parts  
wwbill Comments: Do you have any articles about changing the struts on a 528 wagon hatch/rear access? Are any special tools needed and if so you you sell them?
July 26, 2013
  Followup from the Pelican Staff: I would grab a repair manual. It will list the special tools and each step of the procedure. Give our parts specialists a call: 1-888-280-7799 They will help you find what you need. - Nick at Pelican Parts  

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Page last updated: Fri 12/9/2016 02:21:32 AM