Lowering Springs
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Joined: Jun 2025
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Lowering Springs
Need Help!
recently lowered my W212 E350 CDI on H&R springs and as soon as I picked the car up it has a popping noise when you turn the wheel at parking speeds. New Top Mounts/Bearings were put on also. I have since taken them apart and replaced the Shims also and put different Top Mounts/Bearing make on but still the noise persists. This weekend I have changed the Shocks for new ones as the left side had blown and also put a 25mm drop Spring on instead of the 35mm H&R but again the noise continues. The Springs are all seated where they should be I just can’t work out why it is still popping on Turning. The noise sounds like it is coming from the top of the strut/bearings…. Any ideas? Love the way it looks don’t really want to have to admit defeat and put it back to stock 😩
recently lowered my W212 E350 CDI on H&R springs and as soon as I picked the car up it has a popping noise when you turn the wheel at parking speeds. New Top Mounts/Bearings were put on also. I have since taken them apart and replaced the Shims also and put different Top Mounts/Bearing make on but still the noise persists. This weekend I have changed the Shocks for new ones as the left side had blown and also put a 25mm drop Spring on instead of the 35mm H&R but again the noise continues. The Springs are all seated where they should be I just can’t work out why it is still popping on Turning. The noise sounds like it is coming from the top of the strut/bearings…. Any ideas? Love the way it looks don’t really want to have to admit defeat and put it back to stock 😩
Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
25mm lowering of your suspension is A LOT.
I advice you to not do it, you have upset your suspension geometry A LOT by lowering down by 25mm.
Some information good to know :
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I advice you to not do it, you have upset your suspension geometry A LOT by lowering down by 25mm.
Some information good to know :
.
Member
Joined: Aug 2021
Posts: 75
Likes: 42
From: Long Beach, CA
2016 e350 4matic Wagon
I second the idea of checking the sway bar end links. My wagon certainly more than 35mm lower than stock and I do not have any popping noises. The wagon is AWD, so I am not familiar with the differences in your front suspension. Did you have it aligned at a reputable shop that works with lowered vehicles on the regular? I did add some K-Mac camber kit to keep the rear in check and after that all four wheels are within all factory specs.
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Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Look at steering tie rods...
are they straight with rack?
are they at 40° angle with rack?
No toe adjustment can fix that setup.
Steering rack being far away from a neutral position is troublesome with suspension travel.
Hence zero travel fixed-suspensions holds toe angle.
are they straight with rack?
are they at 40° angle with rack?
No toe adjustment can fix that setup.
Steering rack being far away from a neutral position is troublesome with suspension travel.
Hence zero travel fixed-suspensions holds toe angle.
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