Boot lid struts

[rafcom]

Hi All

Just a random question, but how heavy should the boot lid feel?

I didn't pay much attention to it until I asked one of the yougens to open the boot and they couldn't lift the lid, then realised, it is a tad on the heavy side.

Is that normal or is there a possibility the struts are tired?

Thanks,
R

 

[flybobbie]

In my car struts will hold it up but any other posn. boot drops, quite heavy.
Just dampers to slow it rate of fall.

 

[BeardyJon]

Yeah it's a pretty heavy boot lid on this car. I considered looking into better struts in the past but don't want to put extra strain on the roof motors and potentially wear them out quicker as a result of any extra resistance.

 

[RobbiZ4]

Roof E89 (BMW 54377212634) Stabilus 0728pb 800Nm (special tool required)
Trunk lid E89 (BMW 51247191255) Stabilus 499514 570Nm

Each pair should be replaced by new ones each decade.

 

[matsmith749]

Mine is one of the later cars (2016) - boot struts have plenty of resistance in them, and letting go of the boot from about halfway closed sees a slowly damped drop to the closed position.

It feels heavy at open - but I think that is resistance from the struts.

 

[B21]

Roof E89 (BMW 54377212634) Stabilus 0728pb 800Nm (special tool required)
Trunk lid E89 (BMW 51247191255) Stabilus 499514 570Nm

Each pair should be replaced by new ones each decade.

I swapped the rear struts out last year..made a palpable difference…I’ve got the front ones too..I’ll do these this winter ..

 

[rafcom]

Mine drops heavy from any position so think they might need to be replaced. Will hunt around for pricing and take it from there.

Thanks :wink:

 

[RobbiZ4]

It feels heavy at open - but I think that is resistance from the struts.

No, this is actually their mistake:

The entire behavior of the struts is reversed: very heavy when lifting, undamped when falling.

 

[Umfaan]

New Struts and see the Difference.

 

[flybobbie]

One of things you just have to replace and see if not happy.

 

[matsmith749]

No, this is actually their mistake:

The entire behavior of the struts is reversed: very heavy when lifting, undamped when falling.

I don't see it on mine Robbi - it's firmly damped in both directions TBH.

And while we are at it - bonnet struts are actually on the maintenance schedule to be replaced every 5 years (something to do with the crash protection). Not the exploding bit, the actual struts.

Mine were changed by the dealer under warranty as should have been changed before I picked up the car.