BMW 3-Series (E90 E92) Forum - Suspension | Brakes | Chassis https://www.e90post.com/forums/ Discuss different components such as springs, shocks, coilover kits, sway bars, BBK, etc.. here! en Sun, 19 Apr 2026 02:21:35 GMT vBulletin 60 https://2addicts.com/forums/multisite-style/e90post/misc/rss.jpg BMW 3-Series (E90 E92) Forum - Suspension | Brakes | Chassis https://www.e90post.com/forums/ Hel upgraded brake line install problem. https://www.e90post.com/forums/showthread.php?t=2237962&goto=newpost Sat, 18 Apr 2026 18:54:24 GMT Attachment 1 (https://www.e90post.com/forums/attachment.php?attachmentid=1)Currently doing the f3X 370mm Caliper upgrade on the e91 and have got myself quite a large problem. Please see video, I cannot understand why this is happening? Not leaking at the brake pipe union nor is it leaking in the... Attachment 1Currently doing the f3X 370mm Caliper upgrade on the e91 and have got myself quite a large problem.
Please see video, I cannot understand why this is happening?
Not leaking at the brake pipe union nor is it leaking in the caliper union.
Fluid is getting through as when I open the bleed nipples brake fluid is present.
Could this be a faulty line? Something caliper related?
Something I'm missing.
I'm utterly perplexed.
Attached Images
 
]]> Suspension | Brakes | Chassis Timnicebutbim https://www.e90post.com/forums/showthread.php?t=2237962 Hel upgraded brake line install problem. https://www.e90post.com/forums/showthread.php?t=2237961&goto=newpost Sat, 18 Apr 2026 18:52:24 GMT Currently doing the f3X 370mm Caliper upgrade on the e91 and have got myself quite a large problem. Please see video, I cannot understand why this is happening? Not leaking at the brake pipe union nor is it leaking in the caliper union. Fluid is getting through as when I open the bleed nipples... Currently doing the f3X 370mm Caliper upgrade on the e91 and have got myself quite a large problem.
Please see video, I cannot understand why this is happening?
Not leaking at the brake pipe union nor is it leaking in the caliper union.
Fluid is getting through as when I open the bleed nipples brake fluid is present.
Could this be a faulty line? Something caliper related?
Something I'm missing.
I'm utterly perplexed. ]]> Suspension | Brakes | Chassis Timnicebutbim https://www.e90post.com/forums/showthread.php?t=2237961 Poor straight line driving after M3 front control arm install https://www.e90post.com/forums/showthread.php?t=2237105&goto=newpost Sun, 12 Apr 2026 09:16:50 GMT After I replaced the front control arms on my 335i (E90) to M3 ones, the straight line ride quality and handling has taken a negative hit. The road imperfections seem to have a much larger impact on the steering wheel to the point the feedback is overwhelming. It feels like I need to hold the... After I replaced the front control arms on my 335i (E90) to M3 ones, the straight line ride quality and handling has taken a negative hit. The road imperfections seem to have a much larger impact on the steering wheel to the point the feedback is overwhelming. It feels like I need to hold the steering wheel tighther or the road might turn it. The steering wheel also does not straighten itself when driving in a parking lot (~5mph).

The cornering capability of the car is now great, the car travels better when turning and there is more grip available.

I replaced the front + rear struts, coils and the 4 front control arms and 6 rear control arms but I did this in steps so that I did not replace the front wishbone (lower control arm) and rear toe arm until just before my alignment. So I did get to drive the car with the new suspension minus the M3 wishbone (which gives camber) and the car felt fine with good feedback. After the wishbone install and alignment the front feels off. I have got nearly -2 degree camber on the front now. Is what I am experiencing normal or has anyone else had this problem and resolved it? I really think all this is down to the M3 wishbone. I did torque everything at ride height but I will do it again for the wishbone (lower control arm) again. ]]> Suspension | Brakes | Chassis suspect https://www.e90post.com/forums/showthread.php?t=2237105 M sport spring rate? https://www.e90post.com/forums/showthread.php?t=2235924&goto=newpost Fri, 03 Apr 2026 03:05:42 GMT I 'm currently running the B12 set, but it is a little too rough imo for these roads. Considering going back to the sport springs with the b8's. I know the eibach's are Fronts = 148 lbs/in, Rears = 457 lbs/in.
Also looking for slightly more clearance for bigger tires.
As far as I'm aware the b8's should still be compatible with the slightly taller sport springs as far as length is concerned.
Does anyone know the oem sport spring rates?
Will this change the ride comfort much?
Also my car which is a diesel is at least 200lbs lighter than stock. ]]> Suspension | Brakes | Chassis D989 https://www.e90post.com/forums/showthread.php?t=2235924 E91 330d Poor brake pedal after abs sensor change https://www.e90post.com/forums/showthread.php?t=2235355&goto=newpost Mon, 30 Mar 2026 16:12:44 GMT Hi - I have a weird problem with my 2011 330d Touring. Driving around today I got a load of warning lights for abs, DSC etc come on. On scanning the car I got a fault code for the rear right wheel speed sensor, implausible signal. Cleared the code and it would come straight back on driving. ... Hi - I have a weird problem with my 2011 330d Touring.

Driving around today I got a load of warning lights for abs, DSC etc come on. On scanning the car I got a fault code for the rear right wheel speed sensor, implausible signal. Cleared the code and it would come straight back on driving.

I've replaced the rear right abs speed sensor now and cleared the code and it's gone and not come back.

However, I now have a terrible brake pedal -a bit of initial pressure and then it just goes away from under my foot. Maybe like air in the system, but I've been nowhere near the hydraulic side of the brakes, only the wheel speed sensor. I've not bled the brakes yet (I'm going to, obbviously, but to my mind, I shouldn't have to just for changing a wheel speed sensor.

I had wondered about the possibility of a failing ABS pump as I know that's a common problem but there are no fault codes or anything showing for that - it's presenting normally in the diagnostics.

Any thoughts welcome as I'm a bit stumped. ]]> Suspension | Brakes | Chassis harveysduvet https://www.e90post.com/forums/showthread.php?t=2235355