WANTED Bilstein B4 kit

[enuff_zed]

The si didnt start till like 2006

And had the N52 which is probably a different weight, hence the different shock.

[Gregory_tolson]

yeah, real oem must be searching your VIN # wrong. Search solely based on what your car is versus the VIN.

I did this after you mentioned the 3 litre thing.
Parts are now showing the same as you and enuff zed. Not that it matters ultimately as it's still the same B4 suspension I need but was just confusing me so much why it was different!

Haha, BMW definitely was quirky with their PN's. Though it always amazes me how similar this car is to the e46

[Dr. Zed]

Solving mystery after mystery here! Thanks for your invaluable input

I'm opting to go for B4's with M bump stops and undecided on whether to use original springs or get new ones but either way I'll stick with the B4 shock and M sport spring combo!

[Rockhopper]

While you have the front struts apart you'd be daft not to swap the springs. Rear ones are easy to do with hardly any tools but the fronts are scary! No doubt someone will be along to say the opposite though

[enuff_zed]

While you have the front struts apart you'd be daft not to swap the springs. Rear ones are easy to do with hardly any tools but the fronts are scary! No doubt someone will be along to say the opposite though

I agree. Exactly what I was saying earlier about the rears. If the car is a keeper and you're not on a really tight budget then do the front springs while its all apart.
Don't find the fronts scary tbh, but then I've had plenty of practice now.

[Dr. Zed]

While you have the front struts apart you'd be daft not to swap the springs. Rear ones are easy to do with hardly any tools but the fronts are scary! No doubt someone will be along to say the opposite though

The issue is trying to find front springs in any sort of decent time frame..

[Dr. Zed]

While you have the front struts apart you'd be daft not to swap the springs. Rear ones are easy to do with hardly any tools but the fronts are scary! No doubt someone will be along to say the opposite though

I agree. Exactly what I was saying earlier about the rears. If the car is a keeper and you're not on a really tight budget then do the front springs while its all apart.
Don't find the fronts scary tbh, but then I've had plenty of practice now.

I've been looking for springs but no luck in the UK really.
I didn't find the fronts to bad either to be honest.

[Gregory_tolson]

you are probably fine with re-using them, mine looked ok if you go back further in the pics, the rears are what seem to have the common issues. Do you have RockAuto.com in the UK? They have front springs available from Lesjofors. They are Part Number 4008510. They are only $36. Maybe search that number up and see if it pops up on any UK parts providers.

[Gregory_tolson]

https://web.tecalliance.net/lesjofors/e ... :AT;page:0

[SonnyA85]

I've put B4's on my car - no idea on longevity yet but BWM OEM are Sachs and on my 100,000 mile old car the rear ones had been replaced at least once before so lets say 50k miles and they are shot (and not just a little bit shot - zero damping at either end). I personally don't think that's very good!

I'll be honest, I think 30-40k on any standard set of shocks is reasonable considering the life they lead.

It's well known the oem/sachs only last around 30K. Bilstein's will last 60K+ easy.

Have a search on the forums to confirm the above but Bilstein's are built to a much higher standard. In fact to confirm what others have said on the forum my mechanic just called as he's coming to do the EGR on Friday and he said himself Bilsteins are a quality shock as I'm just about to plac emy order and sent him a screenshot to double check everything before I do. 37% off today on autodoc and I have a visa card which gives me 5% cashback on the total amount too.

[enuff_zed]

I've put B4's on my car - no idea on longevity yet but BWM OEM are Sachs and on my 100,000 mile old car the rear ones had been replaced at least once before so lets say 50k miles and they are shot (and not just a little bit shot - zero damping at either end). I personally don't think that's very good!

I'll be honest, I think 30-40k on any standard set of shocks is reasonable considering the life they lead.

It's well known the oem/sachs only last around 30K. Bilstein's will last 60K+ easy.

Have a search on the forums to confirm the above but Bilstein's are built to a much higher standard. In fact to confirm what others have said on the forum my mechanic just called as he's coming to do the EGR on Friday and he said himself Bilsteins are a quality shock as I'm just about to plac emy order and sent him a screenshot to double check everything before I do. 37% off today on autodoc and I have a visa card which gives me 5% cashback on the total amount too.

Oh whatever..........

[kis]

Late to this epic wanted thread but I find myself in a similar situation. I’ve got shocks (sach) and will be reusing the old rubber dust shield. I’m pairing it with my m sport springs… question is what bump stops or dust shield kit do I need to buy? Or will any be compatible?

[SonnyA85]

Late to this epic wanted thread but I find myself in a similar situation. I’ve got shocks (sach) and will be reusing the old rubber dust shield. I’m pairing it with my m sport springs… question is what bump stops or dust shield kit do I need to buy? Or will any be compatible?

I order febi bilstein today. Bump stops and cover in one set were around £7 each I think

103828 on autodoc

[kis]

What about 900 132? AUTODOC

[True-Blue]

I've put B4's on my car - no idea on longevity yet but BWM OEM are Sachs and on my 100,000 mile old car the rear ones had been replaced at least once before so lets say 50k miles and they are shot (and not just a little bit shot - zero damping at either end). I personally don't think that's very good!

I'll be honest, I think 30-40k on any standard set of shocks is reasonable considering the life they lead.

It's well known the oem/sachs only last around 30K. Bilstein's will last 60K+ easy.

Oh my days, is this coming from the same ‘fact based’ knowledge pool that electric car owners don’t have range anxiety?

Where is the fact based evidence that Bilstein shocks last twice as long a Sachs shocks? 30k vs 60k

What you have is a situation where a lot of owners have replaced 10yr old+ Sachs shocks with bilstein’s in the belief they will be better, or because at the time they might have been cheaper than Sachs.

Do Bilstein offer a ‘’60,000 miles easy’’ guarantee?

If you have a look at Bilstein B8’s they’re developing a bit of a reputation for failure, and they’re an even more substantial build (different type of shock) to B4’s

O.P. You will be absolutely fine with Sachs shocks…. Most shocks will be dead after being run for 15 years even if they haven’t done really high mileage.