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Replacing my front suspension and need a cross check on some values please: 2009 W204 C300 Luxury with sport suspension/manual transmission rwd.
Upper Control Arm bolt to chassis: 80 nm then 120 degree turn
Upper Control Arm ball joint: 50 nm then 60 degree turn
Lower Control Arm bolt to chassis: 80 nm then 120 degree turn
Lower Control Arm ball joint: 50 nm then 60 degree turn
Tie Rod to steering knuckle: 50 nm then 60 degree turn
Sway bar links both bolts: 98 nm
Dust cover 3 bolts: firm
Caliper bolts: 115 nm
Strut to steering knuckle: 33nm
Wheel bearing adjustment: .02mm with caliper
Wheel bolts: 130 nm
appreciate the cross check, parts ordered from MB.
I did not do control arms but i did sway bar links, brakes and struts before. Heres what I have written in my notes:
Brake anchor to steering knuckle (brake caliper bracket)- 115nm.
Caliper to brake anchor- 34nm.
sway Bar Links- 98nm.
Bolt Spring Strut to Body (3 bolts at top)- 33nm.
Bolt Suspension Strut to Steering Knuckle (2 bolts w/nuts)- 100nm. I also put a little blue locktite on
Lug Nuts- 98ft lbs.
The only one i was not exactly sure about was the 2 bolts for the struts. But ive checked them a few times since and they are on solid.
To torque the struts I used a floor jack to raise the steering knuckle up to ride height then torqued the 2 bolts w/nuts. I torqued the 3 bolts up top in the engine bay last after the car was lowered on the ground. Sway bar links dont have to be torqued under load.
I have the awd struts, the rwd strut torque values are the same I guess but wanted to update in case. I came across this helpful photo.
Not sure if the bottom bolts for the struts have to be torqued under load or not on the rwd. My awd struts with the two bolts with nuts had some play which is why i raised the steering knuckle to ride height before tightening, thinking that was the correct angle they should be at.
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