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[JMcD]

I did a search, looked in the owner's manual, and called six dealers, and got six different answers. What is the correct lug nut torque number for a '06 325i?

[E90Fleet]

BMW says 120Nm

[SilverE90Sport]

You can't go wrong with 100ft.lbs.

[E90Fleet]

120nm = 88.5f t.lb

[E90Fleet]

Originally Posted by SilverE90Sport

You can't go wrong with 100ft.lbs.

95ft.lb is highest allowed on cars other than 7 Series or X5

[Bimmerista]

Originally Posted by E90Fleet

BMW says 120Nm

I purchased the BMW jack set, and it comes with a pre-set torque wrench on which is written 130Nms. What gives ? I would think BMW would provide the correct torque setting ?

[BigPapiDoesItAgain]

Originally Posted by JMcD

I did a search, looked in the owner's manual, and called six dealers, and got six different answers. What is the correct lug nut torque number for a '06 325i?

My E39 5er was 70 ft/lb

[underDAWG]

Anything between 85 to 100 ft lb is good. I take a higher number just in case. But if some one accidentally sets torque to 140 ft lb, it is not going to kill the rotor. Lug nut is not as critical as cyclinder head bolt. My 2 cents.

uD

[JMcD]

Thanks all. However, there must be a specific number for this wheel, i.e., my '04 GT3 is 96 ft. lbs., and my ML 320 is 98. From what I've heard..., it may be 72 ft. lbs.

[underDAWG]

Originally Posted by JMcD

Thanks all. However, there must be a specific number for this wheel, i.e., my '04 GT3 is 96 ft. lbs., and my ML 320 is 98. From what I've heard..., it may be 72 ft. lbs.

Every nut and bolt in any specific application will have a torque spec along with a tolerance value. For safety and routine year to year use, the tolerance has to be high. It is unlikely that when your ML calls for 98, and your mechanic’s torque wrench was off by 2 ft lb and he set it to 96 ft lb. The chance that your ML wheel will come off on the highway is very unlikely. While we should adhere to the factory spec, but there is a margin of error (tolerance) that build into every vehicle.

The horror stories we often hear that the tire shop uses the impact to tighten the wheel too tight and wrapped the rotor. The torque in question often exceeds 600 ft lb. HTH.

[Bimmerista]

Would any of you know what 130Nms means in lbs ?

[underDAWG]

Originally Posted by Bimmerista

Would any of you know what 130Nms means in lbs ?

If E90Fleet's conversion is correct, and I think it doe,s then

130 Nm = 95.8 ft lb

I hope it is not a trick question

[JMcD]

It seems that 120 nms., or 88.5 ft. lbs. is the correct number. Yet, one dealer said 120 nms. = 72 ft. lbs.

[jvquattro]

Originally Posted by JMcD

It seems that 120 nms., or 88.5 ft. lbs. is the correct number. Yet, one dealer said 120 nms. = 72 ft. lbs.

Don't listen to that dealer! You have it correct

1 newton meter = 0.7375621 pound foot

1 pound foot = 1.355818 newton meter

[Bimmerista]

So guys, it seems that the pre-set torque wrench provided by BMW as part of their car jack is set for 98.5 lbs (130Nm). So it would seem to me that his is the right torque for the factory bolts (?)

[Sho]

I usually tq. mine at 85 ft-lb

[ase2dais]

Originally Posted by Bimmerista

So guys, it seems that the pre-set torque wrench provided by BMW as part of their car jack is set for 98.5 lbs (130Nm). So it would seem to me that his is the right torque for the factory bolts (?)

This is totally inline with BMW suggested torque values for E90, I had a long series of discussion before, on the subject matter, on a different BMW forum, and until a found a good source reference to backup my view.

I used BMW set values on its torque wrench as per reference:
"the fixed torque value of 130 Nm is within the correct torque range"

http://www.circlebmw.com/parts/acc/71106773536.htm

plus more heated passed torque discussions:

http://www.bimmerfest.com/forums/sho...t=wheel+torque

[ashecnc]

Originally Posted by ase2dais

This is totally inline with BMW suggested torque values for E90, I had a long series of discussion before, on the subject matter, on a different BMW forum, and until a found a good source reference to backup my view.

I used BMW set values on its torque wrench as per reference:
"the fixed torque value of 130 Nm is within the correct torque range"

http://www.circlebmw.com/parts/acc/71106773536.htm

plus more heated passed torque discussions:

http://www.bimmerfest.com/forums/sho...t=wheel+torque

Once you jack your car up, what do you do, do you have a spare? I thought about getting the kit. I am changing my wheels, I could use one of my old wheels, but where would I put it, I dont think I would have much space to throw a wheel back there also, did you say the kit does not have an adjustment for torque? if that is the case, its set to high?? Thanks for the info

[ase2dais]

Originally Posted by ashecnc

Once you jack your car up, what do you do, do you have a spare? I thought about getting the kit. I am changing my wheels, I could use one of my old wheels, but where would I put it, I dont think I would have much space to throw a wheel back there also, did you say the kit does not have an adjustment for torque? if that is the case, its set to high?? Thanks for the info

DEJAVU`
First of all, Im kinda surprised this post unanswered for I thought I just answer it earlier today, anyway recapped cut and paste from bimmerfest.

Let me try to answer some of your questions.
I currently have two set of nonRFT tires with OEM 17 alloys, I use one of the winters as my spare, for I havent got the time to order a kit from leatherZ, plus Im not sure if Im upgrading to a cabrio or an M.

Aside from the spare full tire at my trunk I also have the BMW e90 jackit, a can of fix-aflat in the trunk. I also have a $30 special hydraulic jack at the garage for quicker wheel swap. Three-four pumps the car is up, I use a 4way t-shape lug wrench and its done.

For the Torque, Im convince the preset-non adjustable twue lug wrench that came with the jack-kit is ok, for why would BMWNA sell them in the kit?
Im convince that maybe the E90 having RFT tires, necessitates higher torque than e46/36 cars. My winter wheels was set last winter to 80s ftlbs by the dealer, and I noticed last week that one of my lugs came missing.

Yes! the Jackit for the BMW torque wrench cant be adjusted, its set at 130Nm. and Im using it for I dont want to loose another lug nut.

you have more experience with 3 series than me, maybe you can share some of your opinions and experiences to the group to shed more light on the matter.

its my .2 cents of course

[Don Nguyen]

I use to do mine at 70ft lbs but it was way too easy to break open with my hands so I have upped it to 90 ft lbs just for a little bit more secure sense of mind.

[ashecnc]

Originally Posted by ase2dais

DEJAVU`
First of all, Im kinda surprised this post unanswered for I thought I just answer it earlier today, anyway recapped cut and paste from bimmerfest.

Let me try to answer some of your questions.
I currently have two set of nonRFT tires with OEM 17 alloys, I use one of the winters as my spare, for I havent got the time to order a kit from leatherZ, plus Im not sure if Im upgrading to a cabrio or an M.

Aside from the spare full tire at my trunk I also have the BMW e90 jackit, a can of fix-aflat in the trunk. I also have a $30 special hydraulic jack at the garage for quicker wheel swap. Three-four pumps the car is up, I use a 4way t-shape lug wrench and its done.

For the Torque, Im convince the preset-non adjustable twue lug wrench that came with the jack-kit is ok, for why would BMWNA sell them in the kit?
Im convince that maybe the E90 having RFT tires, necessitates higher torque than e46/36 cars. My winter wheels was set last winter to 80s ftlbs by the dealer, and I noticed last week that one of my lugs came missing.

Yes! the Jackit for the BMW torque wrench cant be adjusted, its set at 130Nm. and Im using it for I dont want to loose another lug nut.

you have more experience with 3 series than me, maybe you can share some of your opinions and experiences to the group to shed more light on the matter.

its my .2 cents of course

thanks, no DEJAVU, I posted on both

[chino1972]

90ft/lbs is fine. unless you have a really expensive calabrated torque wrench the numbers will be off by +/- 2 to 4% anyways.