[A2G]

So i lowered my 335xi today and i have several issues....if any of you can let me know what could be wrong, it would be immense help.

I will try to explain how much it was lowered. The front: from the bottom of the lip (of the rim) to top of the tire, the measurement was to lower the car to 60 cm, Back: 59.5 cm. A finger still fits between the gap in the front, not so much in the back. Its dark out, tomorrow ill take some pictures for better understanding.

When i accelerate from 0 to 60...the car is very slow compared to before and the yellow traction lights start blinking, i believe this means its slipping...never had this happen before....also at some point when accelerating the rpm was stuck at 3000 r/min for a good second and it did not go up....im worried, what could be wrong? I have not done alignment yet, im waiting a while for springs to settle in....would alignment fix this problem or is it totally something else

[mike3000fl]

sound like the dsc is detecting wheel slippage and is limiting power. kinda like if you floor it on ice or sand the car will just pull away slowly.

did you damage the wires or sensors during the install?

[A2G]

Originally Posted by mike3000fl

sound like the dsc is detecting wheel slippage and is limiting power. kinda like if you floor it on ice or sand the car will just pull away slowly.

did you damage the wires or sensors during the install?

i didnt install it...local shop did.....what should i do? go somewhere different and get it checked to see if everything is ok?

[mike3000fl]

what tire sizes are you running, did you switch tires also?

[A2G]

Originally Posted by mike3000fl

what tire sizes are you running, did you switch tires also?

nope i didnt change anything else, just installed kw v1s....same tire and rims as before....rims are 19 inch, tires are 235 in the front and staggered 265 in the back i believe.....dunno exactly right now, i can check and let u know.

[mike3000fl]

was just wondering because on an xi if the rears have a different overall diameter than the fronts it can cause issues with the dsc and all wheel drive.

anyway im thinking that if you are sure you arent rubbing thats causing the interference during acceleration, then its the dsc or some kind of engine management shit doing it. would make sense that a wheel speed sensor or wire could have been damaged in the wheel well but i would think you would have a dsc failure and abs failure warning light right now.

if you are rubbing reallly really bad enough to slow the wheel to the point that it lost traction that the dsc would see that as slipping and intervene. thats some serious rubbing though lol.

as far as your alignment question....maybe some kind of fucked up alignment shit where the toe is so excessive on one side of the rear that the wheel speed of that side if getting thrown off and confusing the dsc, doubt it though, never heard of anything like that.

[A2G]

did u not notice an acceleration difference when u lowered ur car?

[mike3000fl]

none.

[Bimmer This]

Maybe it was just cociendence that this is happening the right after you lowered your car. I would d=take it back to the installer and have them raise it up while you visually inspect it for damage.

[A2G]

Originally Posted by Bimmer This

Maybe it was just cociendence that this is happening the right after you lowered your car. I would d=take it back to the installer and have them raise it up while you visually inspect it for damage.

i think i will do that......i was testing it the whole night on map 3.... the car revs high as it should, but the car doesnt move as fast as it suppose to during those revs

[DANMACINSD]

I'm not 100% sure, but do the xi's run staggered wheel fitment? Maybe that has something to do with it.

[335BBS]

Originally Posted by A2G

i think i will do that......i was testing it the whole night on map 3.... the car revs high as it should, but the car doesnt move as fast as it suppose to during those revs

I cant believe a reputable service guy would do the suspension work without doing the alignment. Who did it? A gas station? Get that fixed first.

[335BBS]

Originally Posted by DANMACINSD

I'm not 100% sure, but do the xi's run staggered wheel fitment? Maybe that has something to do with it.

Lots of people run 235/35/19 and 265/30/19 with no problem. Circumference is identical im told.

[VWtoBMW]

I have an OEM 18'' staggered set up with the sport package option on my 335i xDrive

Originally Posted by DANMACINSD

I'm not 100% sure, but do the xi's run staggered wheel fitment? Maybe that has something to do with it.

[reprod]

I've got OEM 18" staggered on 335xi with KWv1 installed. I initially had rubbing when first installed due to 12mm spacers on the rear. I feel no difference in speed whatsoever.

Jack it up and check for any damage to wires, etc. Something went wrong during the install. Maybe the mechanic stole your tune...

[assclown]

PM sent..

[335BBS]

Originally Posted by reprod

I've got OEM 18" staggered on 335xi with KWv1 installed. I initially had rubbing when first installed due to 12mm spacers on the rear. I feel no difference in speed whatsoever.

Jack it up and check for any damage to wires, etc. Something went wrong during the install. Maybe the mechanic stole your tune...

Stole your tune..........I like that. They shouldnt have let you leave with out completing the job.....alignment.

[ragingclue]

If the problem was DSC intervening, wouldn't you know by the indication in the dash?

[anowlan]

This is why suspension mods scare me, and why my car remains bone stock.

[mike3000fl]

Originally Posted by ragingclue

If the problem was DSC intervening, wouldn't you know by the indication in the dash?

i think he says in the first post the yellow traction control light flashes during this.

[mpaa]

I am quite sure that problem is sensor of the steering axis (sorry, don't know the correct name of this axel). This sensor think now that your car don't go straight and it gives error messages for the system and power goes down. They have tools for adjusting in the BMW's dealer workshops. They can also check first is this sensor adjusted the right way. I have heard that position of the sensor is quite critical, so maybe something has changed in your car.

[ragingclue]

Originally Posted by mike3000fl

i think he says in the first post the yellow traction control light flashes during this.

Yeah wow I can't believe I missed that. I'm slipping...