how may broken springs ?

[Mark CSL]

My csl has just turned 3 years old.
And is on its 3 set of rear springs.

:moan: any 1 else had theres done ?

[deleted_user_0_csl]

both spring's done on mine

[M5 Dan]

Its so common on BMWs, even the 7 series hammer rear springs.

[Ms Escobar]

Re: how may broken springs ?

My csl has just turned 3 years old.
And is on its 3 set of rear springs.

:moan: any 1 else had theres done ?

I believe this is common but mine are fine, and previous owner doc history receipts are very thorough with no springs replaced.

[Mark CSL]

Re: how may broken springs ?

My csl has just turned 3 years old.
And is on its 3 set of rear springs.

:moan: any 1 else had theres done ?

I believe this is common but mine are fine, and previous owner doc history receipts are very thorough with no springs replaced.

Never say never :hahaha: :hahaha: :hahaha:

[CSL]

How many miles has your car doe Mark?

And or do you live down an unmade road? :wink:

[Mark CSL]

How many miles has your car doe Mark?

And or do you live down an unmade road? :wink:

My CSL has done 54,000 miles
I dont live down an unmade road

just crap springs :thumbs:

[Ms Escobar]

How many miles has your car doe Mark?

And or do you live down an unmade road? :wink:

My CSL has done 54,000 miles
I dont live down an unmade road

just crap springs :thumbs:

... probably more to do with the hi mileage - it's called wear and tear!

[Ms Escobar]

Re: how may broken springs ?

[quote="mark csl"][quote=Ms Escobar][quote=

Never say never :hahaha: :hahaha: :hahaha:[/quote]

Didnt say never, just answered your question. :blalalala:

[Mark CSL]

Re: how may broken springs ?

[quote="Ms Escobar"][quote=mark csl][quote=Ms Escobar]

Didnt say never, just answered your question. :blalalala:

:hahaha: :hahaha: :hahaha: :hahaha: :hahaha: :hahaha: :hahaha: :hahaha: :hahaha: :smokin:

[Mark CSL]

probably more to do with the hi mileage - it's called wear and tear!

25,000 miles out of a rear spring
My e36 m3s never needed a spring and i had 11 of them :wink:

[DBT40]

I had a metalurgy boffin that I work beside look at the fragment from my spring which was recovered from inside my tyre, don't ask! Anyways he knows his stuff and thought it was a "stress fracture leading from corrosion at the surface of the spring" he wasn't impressed with the quality of the metal.
Mercs are just as bad. Just crap springs.
BM seem okay about this though and changed a broken one without the £250 excess payment on my extended warranty.

[DBT40]

okay, I've got a theory so feel free to slag me off or shoot holes in my diagnosis. I had my rear suspension in bits the other day and noticed my relatively new spring rusting at the bottom where they snap. On closer inspection it appears that because the seat spring sits within the upper wishbone this is a great place for collecting gravel. The rubber spring seat is also rather good at catching these rocks and holding them; as the spring pushes them into the rubber. Once stuck in there they quickly grind through the spring paint and the corrosion starts. The largest of the stones that was in mine was stuck in such a way that it was restricting the spring travel and was causing a moment around the point where the spring sat on the stone.
Think of flexing a stick in your hands and trying unsuccessfully to break it until you put it around your knee!...... where does it snap? This also ties in with the stress fracture analysis I got.

Have a look in yours and see if it the same?

[Mark CSL]

okay, I've got a theory so feel free to slag me off or shoot holes in my diagnosis. I had my rear suspension in bits the other day and noticed my relatively new spring rusting at the bottom where they snap. On closer inspection it appears that because the seat spring sits within the upper wishbone this is a great place for collecting gravel. The rubber spring seat is also rather good at catching these rocks and holding them; as the spring pushes them into the rubber. Once stuck in there they quickly grind through the spring paint and the corrosion starts. The largest of the stones that was in mine was stuck in such a way that it was restricting the spring travel and was causing a moment around the point where the spring sat on the stone.
Think of flexing a stick in your hands and trying unsuccessfully to break it until you put it around your knee!...... where does it snap? This also ties in with the stress fracture analysis I got.

Have a look in yours and see if it the same?

Your have given this too much thought lol
but i shall have a look :thumbs:

[DBT40]

I know I'm a sad bastard, I came to terms with it years ago. This is the kind of thing I do for a living though, so I can't help myself.