sparky

Just wanted to share my experience on retrofitting my current normal (OEM comfort suspension, non sport, non M-sport suspension) to m-sport suspension! I wanted to retrofit to OEM M-sport suspension struts and coil springs into my car which i believe is the best combination of sport driving and comfort combination. I didn't want to lower the car more than 2cm (about 0.8") so the OEM M-sport coil spring was the ideal solution. The aftermarket eibach pro kit lower the car about 3cm (1.2") so that solution was ignored as i wanted OEM ride. BMW used to provide (not any more) a part number (33500412930) which included the complete set of M-sport suspension with everything needed. 33500412930 BMW ETK info
So i went to my BMW official dealer in Greece - Athens to be informed about parts needed and the price of them. You need a VIN number from an E60 m-pack which i had from a friend of mine to order m-sport coil springs or otherwise bmw won't be able to provide the part numbers for them. Total price was almost 1500€ (1.680$) without labor. BMW uses Sachs struts with BOGE springs. You don't have to order them from BMW since those can be ordered directly from Sachs (and the coil springs) for less than a half price. I will provide below all the OEM part numbers and the Sachs numbers as well from their official catalog (marked in red colour). I repeat Sachs provides and the m-sport coil springs which is the same as OEM coil spring but with Sachs part number on it. The tricky part is to get the OEM M-sport coil spring part number from bmw dealer, then all others are easy to be retrieved from Sachs catalog as mentioned above.

https://s14.postimg.org/oytznfskh/sa...gs_for_E60.jpg

https://s14.postimg.org/hk4nv26ox/sa...ts_for_E60.jpg

OEM BMW M-sport PART NUMBERS SACHS part numbers

31327905313 front left strut 310466
31327905314 front right strut 310467
33526785996 x2 rear shocks 310476
33537905314 x2 rear bump stops 900130
31337905316 x2 front bump stops 900084
31336761325 x2 front coil springs 998467
33536763053 x2 rear coils springs 996980

If you want, (according to your car's mileage you can replace the top mounts as well). BMW OEM M-sport kit with part number 33500412930 was fitted from 520i to 550i so the sachs parts as well fit all the E60 model range apart from M5! Hope many of you find those info useful enough. Haven't install them yet, because my order hasn't yet arrived.

richie281vn

Very good info. The KW coil on my e60 is reaching its destiny so this is probably the best bang for the buck option. Thanks

sparky

Thanks buddy, really appreciate it I believe is the best combination of comfort and sport driving using OEM parts (provided by Sachs) saving a lot of bucks! Also M-sport suspension is ideal if you have bigger rims and brakes (like me, M5 rims with M5 dimensions tyres and M5 brakes as well) where they can handle even better the extra weight of them on each axle!

richie281vn

who did you order from? Apparently they're not stock in the US

sparky

I had myself a hard time finding them as well. Even the Greek Official Sachs dealer for some reason couldn't order the M-Sport coil springs from the German factory, though i have ordered and received the suspension struts! I have found an independent shop which delivers stuff directly from the German Sachs factory. The internet link from the shop is the below ???????????? ??????????? - ????? - ????????? Antallaktika Service Home but unfortunately is in Greek lanquage so you will not be able to "read it"

https://s12.postimg.org/5kjn4ymxp/20161013_202541.jpg

TPIOlds

How does your car sit on this spring setup ???

sparky

It lowers the car about 0.6" or 1.5cm maybe a little less. The ride is excellent. Keep in mind that the car is equipped with M5 tyres with 255x40x19 front and 285x35x19 rear.

sparky

TPIOlds

So the springs (31336761325 x2 front coil springs 998467) you used are specific to the 530 M-sport package instead of the 550 M-sport package.
I am guessing a different spring would be used for the heavier N62 engine

franco9191

Hello Sparky,

I only have one question.

Does the M-SPORT suspension increase the height of the front suspension?

Thanks