[ade555]

Bit of a mind filed with shocks, having a look on few websites Autodock have best prices, I belive I need the sport shocks with m technology and after talking to KYB the main difference is amount of pressure in shock, shaft length ect stays the same. Question is:

Sachs same shocks for std and sport suspension

KYB two different shocks

Bilstein B4 two different Shocks

I'm not going to lie always went with sachs in past but simply due to same shock for std and sport suspension sort of puts me of that brand. KYB I can get locally for not much more instead of waiting 10 days, Bilstein would have to be ordered.

What would you get?

[danb1979]

If yours is M Sport; you need the Bilstein B4S shocks

If it's not a Sport; you just need the B4s

I've just fitted the B4S shocks with Eibach pro kit springs to my F31 as part of it's full suspension overhaul and I can highly recommend them; the car drives & handles superbly now

The B4S shocks landed in just over a week from Autodoc

[ade555]

Originally Posted by danb1979

If yours is M Sport; you need the Bilstein B4S shocks

If it's not a Sport; you just need the B4s

I've just fitted the B4S shocks with Eibach pro kit springs to my F31 as part of it's full suspension overhaul and I can highly recommend them; the car drives & handles superbly now

The B4S shocks landed in just over a week from Autodoc

Sorry if this sounds silly but trying to destiguish the difference between B4S and B4s in your post.

Looking at the part numbers this would indicatate
22-220080 for front
19-220093 for rear

Sport with M technology without the fancy electronics

[danb1979]

Originally Posted by ade555

Sorry if this sounds silly but trying to destiguish the difference between B4S and B4s in your post.

Looking at the part numbers this would indicatate
22-220080 for front
19-220093 for rear

Sport with M technology without the fancy electronics

Yes, so B4S are for M Sport / B4's are for non M Sport

So if your cars an M Sport/M Technology, you need the B4S

As an example on the UK Bilstein page managed by POTN; the shocks I needed are the ones ending 093 & 080:

https://www.bilsteinsuspensionstore....%7C2012%7C2016

Hope that helps

[ade555]

Originally Posted by danb1979

Yes, so B4S are for M Sport / B4's are for non M Sport

So if your cars an M Sport/M Technology, you need the B4S

As an example on the UK Bilstein page managed by POTN; the shocks I needed are the ones ending 093 & 080:

https://www.bilsteinsuspensionstore....%7C2012%7C2016

Hope that helps

Managed to find all 4 in UK and front come out cheaper then on Autodoc by £20 from demontweeks, rears are about £20 more per corner then autodoc, all should be with me tomorrow mind you. I'm happy with that been honest.

If anyone else looking for part numbers standard and sport

[ade555]

Little update:

Rear shocks are identical, no washer provided for nut so was forced to use original nut

Front shocks, removed driver side and compering the two, Bilstein has longer shafts. Not impressed been honest unless is shock design, last time fitted to another BMW front shocks from sachs you could clearly see the difference between sport and normal shock.

Hmm anyone recently fitted Bilstein? I know danb1979 has fitted some but I think you didn't do the work your self, if possible could you ask your fitter if he compered them by any chance.

[Danj94]

I fitted Bilstein B16 PSS10 kit to my car last summer and from memory notice no difference in strut length.

My car is a 440i m sport 2019 RWD.

[ade555]

I'm about to take off NS see if there is difference, I know the OS was blown so might be that. Will update.

Thanks Danj94 for info

[ade555]

Here is a quick pick old vs new

[danb1979]

Originally Posted by ade555

Little update:

Rear shocks are identical, no washer provided for nut so was forced to use original nut

Front shocks, removed driver side and compering the two, Bilstein has longer shafts. Not impressed been honest unless is shock design, last time fitted to another BMW front shocks from sachs you could clearly see the difference between sport and normal shock.

Hmm anyone recently fitted Bilstein? I know danb1979 has fitted some but I think you didn't do the work your self, if possible could you ask your fitter if he compered them by any chance.

They came off as whole units as I was replacing everything; so the new ones were all built up on the bench and then it was swapped over in one job lot

IIRC the Bilsteins will be fine; they'll settle once they're fitted a touch

Are you fitting new springs as well?

[ade555]

Originally Posted by danb1979

They came off as whole units as I was replacing everything; so the new ones were all built up on the bench and then it was swapped over in one job lot

IIRC the Bilsteins will be fine; they'll settle once they're fitted a touch

Are you fitting new springs as well?

No just went with top mounts and new dust shield with bump stops, had to get it from BMW for eye watering price, that's what happens when you leave repairs to late. Took car out for spin, yeah what a difference. Next job will be all arms some point in May/June. Been honest this only done 109k, had lot better out of shocks in past

[danb1979]

Originally Posted by ade555

No just went with top mounts and new dust shield with bump stops, had to get it from BMW for eye watering price, that's what happens when you leave repairs to late. Took car out for spin, yeah what a difference. Next job will be all arms some point in May/June. Been honest this only done 109k, had lot better out of shocks in past

My F31 had done 99k miles and on all original suspension bar the 2 small rear arms; so everything bar those got replaced (Eibach pro kit springs used rather than OEM)

The cars definitely better for it; handles much better/drives much better etc...

Its well worth the refresh IMO; makes it like a new car again

[ade555]

Originally Posted by danb1979

My F31 had done 99k miles and on all original suspension bar the 2 small rear arms; so everything bar those got replaced (Eibach pro kit springs used rather than OEM)

The cars definitely better for it; handles much better/drives much better etc...

Its well worth the refresh IMO; makes it like a new car again

One thing I notice straight away after test drive that before shocks change front end always wonder about a bit, was thinking is down to front arms but it turned out it was the worn shocks. Looking forward to changing all arms now. I'm all about comfort now and next car won't be any sport suspension or anything like that.

[danb1979]

Originally Posted by ade555

One thing I notice straight away after test drive that before shocks change front end always wonder about a bit, was thinking is down to front arms but it turned out it was the worn shocks. Looking forward to changing all arms now. I'm all about comfort now and next car won't be any sport suspension or anything like that.

My F31 is much comfier now; it takes the roads really well and it's lost that looseness in the back end; but also it takes hard bumps better. The original suspension was hard & jittery; now it's firm, but with better compliance and rides over rough roads so much easier...

The Bilstein B4S shocks and Eibach pro kit pairing is very good indeed

God knows how folk live with the B12 kit on a daily driver unless their roads are like billiard tables!