S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

2012 S550 Big Repair Bill Incoming - Ongoing Saga

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Old Jul 26, 2024 | 04:46 AM
  #26  
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that's a very tinny noise - could be the phone mic over doing it - a very similar noise that would come in such driving conditions, but its a bit deeper in tone can be the front roll bar

when u said they greased bushes you shouldn't do it, these days its doesn't work - and of course german rubber suspension and ARB bushes are created from the cheapest nastiest die in 3 years crap you can fit on any car

on the front ARB (antiroll bar) the main bushes made such a noise when the car's where first released - the cure was to TRY and bond the bushes to the bar to stop horrible noises - its doesn't work especially as they age and the rubber hardens and shrinks back - letting the bad gluing session fail

you may get a knock too that's often there and you feel on the brake pedal as you gently come to a rest - this is the arm physically rattling inside shrunk stiff bushes - tends to be especially a week after its been driven in a far bit of wet weather - then the squeaking comes as the sun comes out

new ARBs come with the bushes pre-bonded on the ARB and the part number for a new bush on its own was deleted from parts availability some 10 plus years back - some bodge up aftermarket trash bushes are out there to try and DIY without the relatively crazy cost of a whole arm and half the worlds steel wasted...
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Old Jul 26, 2024 | 06:51 AM
  #27  
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I had a similar noise on a front control arm when I drove it a bit before torquing it down to spec. You might want to check the torque on all the front suspension components that were worked on.
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Old Jul 26, 2024 | 06:24 PM
  #28  
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Originally Posted by cruiser02
Well that didn't last long. The noise came back the same day and sounds even worse. They've been looking at it for two days and no news yet. I uploaded a video here: https://imgur.com/OFW2jkU

It's been almost two weeks, a bit concerning but still have hope. For the little bit that it was fine, it felt really good to drive with the new mounts.
That sound is exactly what a worn dry lower weight bearing control arm ball joint does. I had these issues on two of my W221s and the fix is to replace the load bearing lower control arm(s).

I explained in my earlier post how you need to take the upper wishbone arm loose and let the wheel hub turn as you lower it down with a jack of some sort. The hub turns and after it has made it's move the force is relieved from the ball joints and you can feel how bad they are.

Did you see that the front struts were really replaced? If you had this same noise before the work and it disappeared for a week or so this can be done by lubing the worn ball joints that will last for a few days, just saying...

Replace the load bearing lower control arms (the rearward ones) and you will be fine, guarantee it! They are like $350 a piece. I bought mine from FCP Euro but I cannot find them in their pages anymore...? MB should have them.

P.S. If the garage says they replaced the lower control arms as you indicated in your firs post, you have been hosed pretty good by them!!!

Last edited by Arrie; Jul 26, 2024 at 06:32 PM.
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Old Jul 26, 2024 | 10:53 PM
  #29  
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Originally Posted by Arrie
That sound is exactly what a worn dry lower weight bearing control arm ball joint does. I had these issues on two of my W221s and the fix is to replace the load bearing lower control arm(s).

I explained in my earlier post how you need to take the upper wishbone arm loose and let the wheel hub turn as you lower it down with a jack of some sort. The hub turns and after it has made it's move the force is relieved from the ball joints and you can feel how bad they are.

Did you see that the front struts were really replaced? If you had this same noise before the work and it disappeared for a week or so this can be done by lubing the worn ball joints that will last for a few days, just saying...

Replace the load bearing lower control arms (the rearward ones) and you will be fine, guarantee it! They are like $350 a piece. I bought mine from FCP Euro but I cannot find them in their pages anymore...? MB should have them.

P.S. If the garage says they replaced the lower control arms as you indicated in your firs post, you have been hosed pretty good by them!!!
Quoting my own post as I forgot one thing.

The only other place where this noise could come from is the ball joint at the lower end of the strut. But hey, they were all changed out, right…?
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Old Jul 26, 2024 | 11:50 PM
  #30  
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Another update, this time a great one for the weekend. Got the call that they found where the issue is, sway bar bushings and end links. Picked the car up and drove it over 100 miles to be sure that it's fixed and it rides incredibly smooth, much better than when I got it.

@Arrie It was the upper control arm, which they admitted was a misdiagnosis. They have refunded me the full price ($1,100) for that. I even told them that I am okay with paying since I know they spent a lot of time on the car, but they strongly insisted that they do not replace parts for no reason and charge customers. I did check the strut and it's brand new.

Maybe soon I will consider what @vettebk did and do a full suspension rebuild, but for now I am a happy camper.

Thank you again to all for the input, I learned a lot about the car's suspension.
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Old Jul 27, 2024 | 03:08 AM
  #31  
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ARB bushes stiff and shrunk are 90% of all suspension creaks and groans

unless you have an audi circa 1995 to 2015 and then all the ball joints and bushes are made of chocolate
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Old Jul 27, 2024 | 09:51 AM
  #32  
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Strong work. Glad it's sorted. That was a pretty awful noise!
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Old Jul 27, 2024 | 10:00 AM
  #33  
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Originally Posted by vettebk
Glad your car is operational. The W221 is especially heavy and if you also run 19 inch wheels, the lower control arms take a lot of punishment. I had to replace lower control arms about every 35,000 miles. At 95,000 miles; I bit the bullet and bought a full OEM suspension component kit from FCP Euro with both sets of upper, lower forward and rearward (Lemforder components) control arms. I had my Indy install it all, and did an alignment. He also found a couple of my alloy wheels a little bent and once those were refurbished; the car drove remarkably better (and it was pretty good before). I wish they made the alloy wheels out of something a little harder to survive the road hazards; but I bumped the air pressures to 40 psi to give me a better chance going through the potholes.
How many miles have you put on the car after the installation of the Lemforder front end components? How many years ago was this? Anything negative to report? Looks like that kit on FCP Euro's site is $925. I'd like to go that route with mine. Unless I can come up with the parts list for all the bushings and ball joints and replace just those components with OEM Mercedes. I have a 10 ton press.
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Old Jul 27, 2024 | 11:37 AM
  #34  
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lemforder is OEM
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Old Jul 28, 2024 | 12:18 AM
  #35  
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Nice to see everything is resolved for good on your way and kudos to them for refunding as well
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Old Jul 28, 2024 | 07:33 AM
  #36  
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As usual, BOTUS is 100% correct. Lemforder is the OEM. My car just turned over 100K miles this week. The suspension package was from FCP and was about $850 using one of their $100 discounts. It included all components upper, lower, forward and rearward. I selected FCP because these components are life=time warranty. I even called them to ask about suspension and coil packs which would seem to me to be consumables but they warranty them. Just imagine. It is OK with me!!!

We did the installation at 95K miles and my indy charged me for 10 hours. I thought it was a good deal after picking it up and taking it for a test drive. The suspension was much more compliant, taking bumps better, smoother, just like an S Class is supposed to be. No squeekes and no clunks. I was super happy. These platforms are great to build on.

Of course, last week I made a sharp left turn at an intersection and didn't see the concrete island and I ran up and over the island with the entire left side of the car. I was worried I had bent a new component, but apparently I got lucky this time. It would be just like me to put in a new front end only to bend it running over a concrete island.

Now working on refurbishing the wheels. Found an AWRS shop (Alloy Wheels Inc) with a hydraulic wheel straightener and they are refurbing my wheels this week. Will post the results. Our alloy wheels are made from chewing gum wrappers!
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Old Jul 28, 2024 | 09:14 AM
  #37  
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Thanks, vettebk! I'll look into picking up that kit. I have the FCP W221 center support kit, the FCP W221 chain tensioner kit, and I'll grab the front end kit. Then I'll start all the work! Only 50k mi on mine, but 12 years old now. It rides great and everything feels solid in the front end, no noises, etc., but a fresh front end would last the life of the car for me. Then when I can cough up $1200, I'll have my wheels refinished by a local wheel refinisher here in Tampa. Cool!
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Old Jul 28, 2024 | 09:25 AM
  #38  
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should be $100 a wheel to refurb - so long at there's not welding going on

acid dip
bead blast
add a pretend coat of nothing - which falls of Merc alloy inside 2 years

or u buy a ford and they never need doing
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Old Jul 28, 2024 | 09:33 AM
  #39  
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Agreed. But they CNC face each wheel in that process. Place called Glen's Wheel. Can find their Facebook page on Google search. Quite the variance in customer vehicles.

Funny you mention, been looking for a 1940's Ford for some time now. Tough find.
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Old Jul 28, 2024 | 09:49 AM
  #40  
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So when I finally found the Alloy Wheels place (it was 28 miles north of me on the map but all one lane roads way out in the country!), there was a nice yellow Porshe out front on jack stands. Turns out it was a guy who had dropped off his car for wheels refurbishing at another shop (who shall remain nameless until the story is completed). Apparently, that shop had removed his BBS wheels and replaced them with a set of cheap wheels. Of course, when he returned to claim the car, he was outraged and pissed. He had not received any paperwork when he dropped his Porshe off for the work and only had photos of the car from a show a month previously. The fairly-absentee owner of the shop theorizes a staffer, now terminated, stole the BBS wheels knowing the shop never does paperwork. So the Porshe was getting proper wheels refitted at the place I took my S600. The office gal related the story as I was dropping off two 19 inch staggered wheels. I promptly asked for a receipt for my drop off which she happily provided.

But there is a lesson in all of this. And I hate paying the tuition.

I will update after I get the refurbed wheels mounted on the S600. I plan to do the two on the drivers side first for driver comfort (me), then redo/refurb the passenger side two wheels presuming I am happy with their work.
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Old Jul 28, 2024 | 10:03 AM
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Porsche guy got had. Lesson learned. Maybe I'll think of stamping mine in the center hole somehow.

I'll be doing all 4 simultaneously at the recommendation of the shop, for consistency purposes.
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Old Jul 28, 2024 | 10:06 AM
  #42  
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I will post the costs they charge when I pick up the Mercedes wheels. I am having the dip, the blast, the press, the paint, and the clear coat done on their shop suggestion. I saw the chemical dip shop. I saw the big hydraulic press. And the shop foreman lifted both 19 inch wheels out of my trunk with one hand in one motion (I struggled with each wheel when I loaded), so I decided right then I wasn't going to argue with him about anything.

Right again, BOTUS, One of my other cars is a 2017 Ford Mustang 5.0 GT (36K miles) and the wheels are much better. Same potholes my Mercedes hits causes absolutely no damage to the Mustang. And the Mustang drives very smoothly at 60 mph on the highway and is solid well above 125 mph (on the racetrack of course). Same Michelin tires as on the S600 (different size).

I agree the Ford wheels are better. If Alloy Wheels, Inc. can't make my Mercedes wheels work, I plan to buy new after-market wheels for the S600 and simply stop the lunacy permanently. Imagine, a Mercedes S600 with Ford wheels...... Heresy.
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Old Jul 28, 2024 | 12:54 PM
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Originally Posted by Senecat

Funny you mention, been looking for a 1940's Ford for some time now. Tough find.

don't think they had std fit alloys back then

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Old Jul 28, 2024 | 06:49 PM
  #44  
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Hey Senecat, I did a check of craigslist in Phoenix and found several ads for 40s Fords.
https://phoenix.craigslist.org/searc...=1~gallery~0~0
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Old Jul 29, 2024 | 02:15 AM
  #45  
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Oh yeah they have to replace your sway bar, I forgot if the sway bar is manufactured with the bushings already adhered on, thats not metal on metal. Bushing life is a casino on those.. I've seen them go out every 3 years, I've seen them go 20 years.
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Old Jul 29, 2024 | 12:51 PM
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Originally Posted by ChrisHimself
Oh yeah they have to replace your sway bar, I forgot if the sway bar is manufactured with the bushings already adhered on, thats not metal on metal. Bushing life is a casino on those.. I've seen them go out every 3 years, I've seen them go 20 years.
As far as I know they only did the bushings. It drives so well now.
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Old Jul 29, 2024 | 04:36 PM
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Originally Posted by cruiser02
As far as I know they only did the bushings. It drives so well now.
They must have reglued the bushings to the existing bar then...
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Old Jul 29, 2024 | 04:41 PM
  #48  
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Ahh, you guys are right again. I went to check the invoice and it was the following:

2 Sway Bar End Links
1 Sway Bar
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Old Jul 30, 2024 | 12:26 PM
  #49  
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Update on Alloy Wheels. Picked up the two wheels that I had dipped, blasted, pressed, painted, coated, and refurbed. They did a great job. I am very happy. They clipped me $200 a wheel but it was worth every penny.

Apparently the shop is a franchisee of an outfit called Alloy Wheel Repair Specialists (www.awrswheelrepair.com) with nationwide owner operated shops. He also sells BBS wheels and I learned that BBS wheels are Japanese.
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