Koni Yellows - end of life conditions and causes

matreyia

Major
Apr 19, 2017
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711
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Ride
335i e93
This happened pretty quickly. I started to notice more NVH and it became a bag of rocks in the back seat area....car drove like a bouncy ball over small bumps too. Visual inspection showed all foam absorbers rotted away...koni yellows 4 yrs ago with 60k miles. Driven on rough roads daily the last 2 yrs.

So this is an example of how long koni yellows may last under same conditions as mine. Cost to replace including refresh of mounts and stops and tools...1100 in parts. All oe Bmw seals, mounts, et...front and rears.
 

fmorelli

Lieutenant General
Staff member
Aug 11, 2017
3,748
3,592
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57
Virginia
Ride
E89 Z4 35i, F10 535d
I just did a warranty replacement on STR.T for an E46. Ordered replacements, then did a video that shows new vs old on rebound (old goes up about an inch and stops). Sent the return along with the video to the warranty contact at Koni (to let them know I have the proof what I sent has failed). They reimbursed my replacement order.

Filippo
 
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