theblackhole

I am replacing 2005 W211 Lower Control Arm and Bushings. I have all the parts and tools. Was wonder three things.
First there is no torque listed for the middle bolts..is there one?

Second does the car have to be off the jack and loaded before fully tightening the upper most bushing? Or can it be done before taking it off the jack?

Thirdly would a toe alignment be enough as I have access to toe plates?

Any tips would be wonderful. If all goes well I will do a how to.
If there is already one please send me a link.
Peace
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F1Fan

Where is the middle bolt on the drawing you have attached?

theblackhole

Either end has specs but not the 2 in the middle.
Thank you

Spinning

if your talking about the strut mount point, i'd do it probably around 90-100nm. generally speaking i dont follow the exact torque settings as i kind of just go by feel and most of the nuts either have nylon locking or are oblong shaped on the ends to help lock the nut and bolt down

as for preloading the suspension, if i were you i'd put the front of the car on axle stands at the lifting points and then once the lower arms have been fitted to the car while nuts/bolts are loose you want to load the suspension up by using your jack stand under the front hub (if discs still on the hub use a block of wood to lift from the bottom of the disc)
once the vehicle looks like its lifted off the axle stand a little bit then you want to torque the control arms up as they should be

theblackhole

Thank you makes good sense. Loctite? Was thinking of using Red but likely not need I guess

F1Fan

Do you have the drawing to the strut? Perhaps the torque spec is listed on that drawing?

Spinning

I dont use loctite on them cause i normally use a 1/2 electric rattle gun, but i guess it wouldn't hurt