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2010 e550 4matic. Shuddering when turning slow speeds

Customer Question
2010 e550 4matic. Shuddering when turning slow speeds
Submitted: 4 months ago.Category: Mercedes
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Answered in 2 hours by:
11/26/2017
Mercedes Mechanic: Matt, Engineer replied 4 months ago
Matt
Matt, Engineer
Category: Mercedes
Satisfied Customers: 22,900
Experience: Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing
Verified

Hello

there's a few possibilties here

I'd begin by checking for worn suspension joints - jack the car up so the wheel is off the ground (you’ll need to do this for all 4 corners) and shake the tyre from top to bottom and from side to side (with someone holding the steering wheel on the front) there should be no play in either direction. Any play in 1 direction will usually require a joint to be replaced, if there’s play in both directions then the wheel bearing may be at fault. If theres play only up and down its the strut top mount - to find this one you have to shake the suspension strut it self up and down with the wheel off the ground - so you may need to remove the wheel to check this one.

Now with the car jacked up on that side with the wheel about 2 inches off the ground use a steel bar under the wheel and lever the wheel up and down slightly, you should be able to look at the end of the axle and see if the suspension arm is moving up and down separately to the axle.If so replace the bush

To feel if there's a worn strut top bearing then lightly hold the spring by hand and have your assistant move the steering from left to right with the wheel on the ground - a worn bearing will feel 'notchy' through the spring. The wheel needs to be on the ground for the test to load up the bearing

also check for a worn drive shaft joint - typically these won't produce any vibration unless badly damaged but they can be noisy or 'clonk' for a long time beforehand, turn the steering to full lock and look at the drive-shaft rubber boot there should be no rips or tears in it and the suspension should be clean and dry of any grease. If you reverse at a reasonable speed with the steering on full lock a worn joint will 'click'.

My goal is to give you the best advice that I can and I hope that I've helped today. Please remember to rate my service by selecting from the 5 stars at the top of the screen before you leave. If you need more help, use the reply box to let me know.
If you're not pleased, also let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent further replies
Thanks Matt

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Customer reply replied 4 months ago
I have recently had the suspension checked and joints replaces as well as all 4 tires brakes and rotors. Was more leaning toward the transfer case as the culprit.
Customer reply replied 4 months ago
It only does it in slow speeds and sharp turns such as parking.
Mercedes Mechanic: Matt, Engineer replied 4 months ago

Hello

OK if the suspension checks out then yes the transfer case is a possibility

if you were to drop the oil out of it and as it exits the case strain it through some paper towel to catch any debris then this will provide evidence if you find metal particles in the oil

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Mercedes Mechanic: Matt, Engineer replied 4 months ago

Hi
do you still need help?
Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! If you're not pleased, also let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent further replies
Thanks Matt

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