Rear Coil Spring replacement...

1

123BillyB

Member
Hi Guys,

Had to add myself to the list of broken spring owners the other day and have a question about replacing them.

I have a 55 plate 3.0i SE (76K) which I believe already has M-Tec suspension so I don't want to lower the car any more than it already sits and at the same time, I don't want to get the OEM BMW springs as with the way the roads are where I live, that's just another disaster waiting to happen before its has to happen.

Euro Carparts sell Sachs coil springs for around £60 per side but the description states "For vehicles without M-Technics" so not sure if that includes my car as this is the set that shown when I enter my reg number into the vehicle search or if that specifically relates to Z4M's?

GSF Car Parts have springs listed for £55.80 but they don't mention the brand name and under the description they are just described as "Quality - Premium".

Just wanted to know if anyone has had any experience with the above springs or if there are any other replacement suggestions that are the same hight as OEM but will outlast them?

Thanks,

Billy
 
Thanks Wondermike... That's them off the list then.

Anyone had any experiences with the GSF springs or got any other suggestions?

Thanks
 
Wondermike said:
Have a read of this, there are some alternative springs linked to -

http://z4-forum.com/forum/viewtopic.php?f=3&t=41848
Click to expand...
Thanks for the link.... If I wasnt confused before - I am now lol.

So it seems from the advise on the links the route to go down is either 2 OEM replacements for the back to keep the ride hight equal even though we all know the OEM are rubbish or got for a full set of Eibach springs that will lower the car a further 15mm than the already lowered sports package.

Don't want to further lower the car as the roads are terrible around where I live as it is and I don't really want go for OEM but will if I have to as I will probably sell the car before I cover a further 40k anyway which is what it seems the average life expectancy of OEM anyway.

I'm sure there must me an aftermarket spring available that is the same height as the OEM Sports package spring? Aftermarket lowering cant be the only solution?
 
Having spoken to another forum member (Chappio) I contacted Suplex UK Ltd in Sheffield on 01909 770 660 and ordered the correct height springs for my car (M-Tec set up) and it only cost £107.88 including next day shipping.

Chappio said the springs he got were a perfect fit and a lot better than OEM (plus cheaper) so if you need springs and don't want OEM, you now know where to go.

Thanks Chappio!!!

Billy
 
How do you know if your car has 'M-Tec' suspension?
Mine is a 2.0lt WITH OUT the SPORT button, and ride hight seems low.
I can get another brand of spring from ECP for £38.40
7A546E1A-2FEE-4601-90E5-4BE418B31516-1708-00000112E51A79AD.jpg
 
No 2.0i model had the 'sport button'. If your car is the 2.0i Sport model it will have 18 inch M alloys, M sport seats, M sport steering wheel and M Sport suspension fitted as standard. If in doubt the last seven digits of the VIN number will confirm. M sport springs also have five blocks of green paint on them.

You definitely don't want those springs from ECP which are for standard factory suspension. Suggest you contact 'Suplex' who have a distribution centre in Sheffield. M sport rear coil springs for your model, I would suggest, are these:-

http://fautoparts.com/body-Coil-Spring---SUPLEX---BMW-Z4-E85-2-0-i-2929041-75033102-10708-10213-18561---06229-auto-parts?kw1=auto_parts&kw1=car_parts&kw2=spare_parts&kw3=auto_parts_online&kw4=car_parts_accessories&kw5=discount_auto_parts&kw6=cheap_auto_parts
 
Sorry to resurrect an old thread...

I've just had an Inspection II done yesterday at a main dealer, they advised on a broken NSR coil spring & naturally quoted for a pair of OEM replacements, reading up on other threads Suplex seem to be good aftermarket alternative to OEM but I've I've taken a look at the link below & there are 9 (yes 9) Suplex part numbers listed for my car, I've read other threads that have said that the wrong Suplex springs have been sent & later swapped FOC, obviously I'd like to get the right ones fitted from the outset.

http://fautoparts.com/parts-Coil-Springs---BMW-Z4-E85-2-5-si-10213-19259-auto-parts

Just like to mention that:-

---I'm not interested in lowering the car any further than the standard M-Sports suspension that I have already.
---Definitely don't want to raise the ride height on my car.
---I don't want to make the ride any stiffer than standard M suspension, any improvement on harshness would be a bonus.
---I'd like the replacement springs to be of better quality than OEM & hence last longer.
---I don't want to fit Eibach springs all round as I don't want the car to be officially modified & the insurance hike that would go with that.
---I assume that you'd always replace these as pairs?

The dealer has quoted for Spring pads lower & upper, is this advisable to change at the same time or do people just swap-out the springs themselves?

For reference my car is a 2006 facelift 2.5si sport model.

Any help with the correct Suplex part number much appreciated, or any other suggestions to replacement springs, I know that the ECP ones are not the right ones for cars with M sport suspension.

Tony
 
If you car is manual then you need rear coil spring ref: 0630. However if it has 'options' then it is 0631. Automatic and all other variants of the 2.5si model need rear coil spring ref: 0631.

Recommend that you ring Suplex UK who are based in Sheffield and quote your VIN number to confirm and advise as necessary. They should be able to supply a pair including VAT and postage for around the £120 mark.

Springs should always be replaced in pairs. I have a PDF copy of Suplex catalogue. If you PM me I'll send you a copy.
 
Hi Lillywhite, Thank-you for the quick reply, yes it is a 6 speed manual, I'm not sure why or what options would tip it into a 0631 spring, but here they are below, I'll call Suplex UK on Monday for a quote.

Incidentally, are you able to comment on the ride qualities & ride height of the Suplex vs OEM springs?

S230A Extra package, EU-specific
S302A Alarm system
S345A Chrome Line Interior
S380A Hardtop-preparation
S387A Wind deflector
S399A Soft-top, electromech. all-autom.
S423A Floor mats, velour’s
S428A Warning triangle and first aid kit
S431A Interior mirror with automatic-dip
S441A Smoker package
S494A Seat heating driver/passenger
S4ADA Interior trim strips, alu, brushed, fine
S520A Fog lights
S534A Automatic air conditioning
S662A Radio BMW Business CD
S692A Preparation, BMW 6-CD changer I-bus
S704A M Sports suspension
S710A M leather steering wheel
S711A M Sports seats
S787A BMW alloy wheel, M double spoke 135
L812A NATIONAL VERSION GREAT BRITAIN
S863A Retailer Directory Europe
S877A Delete cross-pattern operation
S880A On-board vehicle literature English
S8SMA Car ident. number visible from outside
S8SPA Control unit COP
S925A Transport protection package
S999A Job order management "HEA"


Tony
 
I have a lovely set of stock bmw e85 rear coil springs sat around if you want them? came off my car before I added coilovers. came off a 2.2l 04 plate.

regards,
 
bradmarsh1989 said:
I have a lovely set of stock bmw e85 rear coil springs sat around if you want them? came off my car before I added coilovers. came off a 2.2l 04 plate.

regards,
Click to expand...

Hi, Thank-you for your offer, I don't think they'd be the right ones for my car as I need the 15mm lowered 'M' springs, as my Zed car is a long term keeper I think I'll fit new ones & feel comfortable that they have been sorted.

I see you are close by, I'd be interested in seeing Project Marmite in the flesh when finished. :thumbsup:

Tony
 
TonyP said:
I'm not sure why or what options would tip it into a 0631 spring, but here they are below, I'll call Suplex UK on Monday for a quote.

Incidentally, are you able to comment on the ride qualities & ride height of the Suplex vs OEM springs?
Click to expand...

I can't advise on the 'options' aspect. I presume it is something that makes the car heavier.

I can't comment on the ride qualities of Suplex v OEM as my springs were replaced by the previous owner shortly before I acquired the car, albeit the wrong ones, and 12 months later when the error was discovered by me following a discussion on this forum Suplex provided 'for free' the correct springs and the garage fitted them with no charge to me. A good result all round and confirms that to me that Suplex are a good company.
Many forum members who have fitted Suplex as an after market replacement comment that they appear to be better quality that OEM and it will be interesting to see if Suplex springs last longer than the 30,000 miles which is where many OEM springs unfortunately appear to fail.
 
TonyP,
Just read your post on this thread.

Lillywhite recommended Suplex to me. I went to their premises and found the folks there ultra helpful and knowledgeable.
My Z has M Tec fitted so I took the springs recommended by Suplex - no lower than the M Tec. I have no problem with ride at all nor the handling ( and I'm a girly by the way!!)

You won t regret the purchase if you buy them.

Jools
 
jools1963 said:
TonyP,
Just read your post on this thread.

Lillywhite recommended Suplex to me. I went to their premises and found the folks there ultra helpful and knowledgeable.
My Z has M Tec fitted so I took the springs recommended by Suplex - no lower than the M Tec. I have no problem with ride at all nor the handling ( and I'm a girly by the way!!)

You won t regret the purchase if you buy them.

Jools
Click to expand...

Thanks Jools, just the sort of info I was after, would you happen to know which part number you had fitted, the 0630 or 0631's?

I call Suplex on Monday & get a set on order

Tony
 
I've got a pair of 06229's for sale if they suit.
I know they are suitable for 2.2 & 2.0 models.
http://www.z4-forum.com/forum/viewtopic.php?f=7&t=59061
 
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