Hello everyone,
I recently bought 2016 GLC 250D. Noticed a creaking noise coming from the rear suspension when you hit a bump. Could this be serious?
I recently bought 2016 GLC 250D. Noticed a creaking noise coming from the rear suspension when you hit a bump. Could this be serious?
Teckno
MBWorld Fanatic!
close
Mar 5, 2026
- Join DateMar 2016
- LocationMelbourne, Australia
- Posts:1,040
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I drive2016 GLC 250d AMG pack, 2017 GLC Coupe 250d AMG pack , 2002 BMW 330Ci convertible, 2021 BMX X1 sD20i
-
Likes:131
-
Liked:161 Times in 131 Posts
I assume steel suspension and not air suspension ?
Check rear shocks, if wet or leaking they will need replacing. Most shocks are candidates for replacing after 80,000km, but no one does and they last a lot longer. Always replace in pairs on same axle.
If car loaded and you hit a dip at speed then not uncommon for thump from rear bump stops. Rear springs are tight.
Front springs worse and if you hit a speed hump faster than 25kph you will need to check your teeth fillings are still in place !!!!
let us know how you get on.
Good luck.
Check rear shocks, if wet or leaking they will need replacing. Most shocks are candidates for replacing after 80,000km, but no one does and they last a lot longer. Always replace in pairs on same axle.
If car loaded and you hit a dip at speed then not uncommon for thump from rear bump stops. Rear springs are tight.
Front springs worse and if you hit a speed hump faster than 25kph you will need to check your teeth fillings are still in place !!!!
let us know how you get on.
Good luck.
Junior Member
Quote:
Check rear shocks, if wet or leaking they will need replacing. Most shocks are candidates for replacing after 80,000km, but no one does and they last a lot longer. Always replace in pairs on same axle.
If car loaded and you hit a dip at speed then not uncommon for thump from rear bump stops. Rear springs are tight.
Front springs worse and if you hit a speed hump faster than 25kph you will need to check your teeth fillings are still in place !!!!
let us know how you get on.
Good luck.
That's funny and finally someone who described it well. Worst sport suspension I have ever seen and mine is 2020Originally Posted by Teckno
I assume steel suspension and not air suspension ?Check rear shocks, if wet or leaking they will need replacing. Most shocks are candidates for replacing after 80,000km, but no one does and they last a lot longer. Always replace in pairs on same axle.
If car loaded and you hit a dip at speed then not uncommon for thump from rear bump stops. Rear springs are tight.
Front springs worse and if you hit a speed hump faster than 25kph you will need to check your teeth fillings are still in place !!!!
let us know how you get on.
Good luck.
Hi,
thank you for your reply.
unfortunately my car has air suspension and has done only 34,000 kms. The noise was noticed with just me at the drivers seat and no luggage at all.
thank you for your reply.
unfortunately my car has air suspension and has done only 34,000 kms. The noise was noticed with just me at the drivers seat and no luggage at all.
Teckno
MBWorld Fanatic!
close
Mar 5, 2026
- Join DateMar 2016
- LocationMelbourne, Australia
- Posts:1,040
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I drive2016 GLC 250d AMG pack, 2017 GLC Coupe 250d AMG pack , 2002 BMW 330Ci convertible, 2021 BMX X1 sD20i
-
Likes:131
-
Liked:161 Times in 131 Posts
Hmm, possibly not bad news.
My understanding of air is if a leak your system will alert you. Also it may collapse and not maintain height.
Try driving with height raised to highest level. Over 80kph I think it reduces in height to reduce drag.
Try raising and lowering when stationery too.
I did have a noise from my rear with steel spring set up and removed all in boot, incl tools, air pump etc, still there.
Next I removed solid wooden cover and sprung privacy blind.
Noise completely gone.
I did not persist as I was happy not mechanical or suspension. I did put some insulation at cabin end of solid cover without much success.
I tend to think noise is from blind, either internal mechanism or where it sits in cavity and possible flex. Noise seems to come from passenger left side rear (car is RHD).
Another owner discovered on his car the rattle was loose locking when rear seats locked into upright position, he wrapped some electrical tape around secure u bolt and when seat closed, no rattle ! Brought on with vehicle flex on roads, etc.
Hope this helps, good luck.
My understanding of air is if a leak your system will alert you. Also it may collapse and not maintain height.
Try driving with height raised to highest level. Over 80kph I think it reduces in height to reduce drag.
Try raising and lowering when stationery too.
I did have a noise from my rear with steel spring set up and removed all in boot, incl tools, air pump etc, still there.
Next I removed solid wooden cover and sprung privacy blind.
Noise completely gone.
I did not persist as I was happy not mechanical or suspension. I did put some insulation at cabin end of solid cover without much success.
I tend to think noise is from blind, either internal mechanism or where it sits in cavity and possible flex. Noise seems to come from passenger left side rear (car is RHD).
Another owner discovered on his car the rattle was loose locking when rear seats locked into upright position, he wrapped some electrical tape around secure u bolt and when seat closed, no rattle ! Brought on with vehicle flex on roads, etc.
Hope this helps, good luck.
