M-Class (W166) Produced 2012-2015

Struts and shocks.

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Old May 29, 2021 | 03:45 PM
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Struts and shocks.

First post, third M class for me…
I’ve ordered a used factory hitch for my ‘14 ML350 for hauling mountain bikes and a tiny trailer for our kayaks…
Since it has 80k on the original suspension, I plan on replacing the shocks while I have the rear interior apart for the hitch install…
Bilstein seems to be the preferred/more common route… Can anyone share thoughts, recommendations or experiences regarding the B4 or B6? Or any other brand/model for that matter…
The car is used 95% of the time running 70-85mph on the West Virginia highways, with a few trips around town…barely any backroads excursions…
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Old May 31, 2021 | 11:22 AM
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Cant help but Im looking to replace shocks and struts on my 2015 ML. I will be interested in comments. Also, if you search the site, you will find comments on B6 shocks on the ML.
The question I have, I remember in the old days, people would put the so called heavy duty shocks on the front and normal ie factory shocks on the rear. I never hear about this any more.

keep us posted on what you do and welcome to the site. Also, its good to hear of someone who is on their 3rd ML, must be a pretty good car

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Old Jun 5, 2021 | 10:47 PM
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Originally Posted by Isawelvis
Cant help but Im looking to replace shocks and struts on my 2015 ML. I will be interested in comments. Also, if you search the site, you will find comments on B6 shocks on the ML.
The question I have, I remember in the old days, people would put the so called heavy duty shocks on the front and normal ie factory shocks on the rear. I never hear about this any more.

keep us posted on what you do and welcome to the site. Also, its good to hear of someone who is on their 3rd ML, must be a pretty good car
I decided to go with the b4 bilsteins. Only doing the rear…will tackle the front down the road…
Pelican was out of stock. So I ordered from autohausaz,the order got canceled as they were out of stock.
Googled and saw that advance auto parts carried them at a higher price…checked and they wouldn’t price match. So I then stopped by autozone, the computer showed them to be in stock and a good price, three days later I ran by…no shocks… the vendor cancelled the order, and now they show no stock. So to eBay, found a good seller with 4 pairs remaining…ordered these…30 minutes later this order was cancelled. Uggh.
Searched again, found yet another pair and ordered it around 3pm…kept watching the item…4pm. Nothing, 6pm nothing, 11pm nothing…next morning, nothing…noon comes around and I get a tracking number!!!
now they are in the hands of FedEx…showing they will arrive by Sunday eve…
not in a hurry as I am waiting on a factory hitch to arrive via freight from California…I only want to rear the rear interior apart once…I also have a tekonsha 4 plug trailer light kit coming from etrailer…replaces the hack-n-tap connectors with a sensor to preserve the integrity of the factory wiring.
The next obstacle will be finding time!
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Old Jun 6, 2021 | 01:37 PM
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Thanks for the updates! Please post photos and a few comments when finished. Are you replacing any of the rubber bits on the rear shocks?
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Old Jun 6, 2021 | 10:52 PM
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I’m torn on replacing the associated rubber bits… everything about the car feels tight and it has been garage kept, and is super clean underneath… if something is needed, I’m happy to replace…I just hate to throw cash away…especially when I know other maintenance items will come down the road!
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Old Jun 14, 2021 | 05:52 PM
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Originally Posted by chassis
Thanks for the updates! Please post photos and a few comments when finished. Are you replacing any of the rubber bits on the rear shocks?
the rubbers were still in great shape on the rear, so they went back in. I planned on paying the dealer to install bilsteins up front, but the two closest only install the genuine parts they sell…No wonder they are called stealerships…
looks like it will be another hot day in my garage in the near future. And find a competent local alignment joint!!! Hopefully I find some positive reviews…I’ve aligned independent suspension before using string tape measure and an angle locator…but my eyes and patience aren’t what they were 20’years ago!!!








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Old Jun 14, 2021 | 09:45 PM
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Thanks for the photos. Looking forward to seeing the final result.

What is the reason for the alignment?
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Old Jun 14, 2021 | 10:25 PM
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Originally Posted by chassis
Thanks for the photos. Looking forward to seeing the final result.

What is the reason for the alignment?
I haven’t pulled struts off of one of these…yet…some cars use the top of the struts for camber adjustment…also, could be a slight difference in the length of the bilstein vs the stock…
If they are the same length, and they bolt straight in with no adjustment… then I may forgo the alignment…
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Old Jun 17, 2021 | 06:34 PM
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Finished

Struts went on today, went ahead with the alignment. Rides and drives much better!
now to enjoy her for a few months…then search for new tires and a battery before winter. The battery has a date of 13 on the terminal, but the carpet has been cut.
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Old Jun 17, 2021 | 09:32 PM
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Well done. Don't forget the auxiliary battery behind the right rear luggage compartment trim.
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Old Jun 21, 2021 | 05:45 PM
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AtvSmurf - thanks for the update.
where you able to source the Bilsteins from.

also, did you install the front struts yourself or have someone else. Did you replace the Front strut bearing mount/upper steering bearing when you replaced the shock.

Keep us posted. I closely behind you but will probably get Independent garage to install them.
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