I am very happy with the W212 overall handling using Bilstein B4 & Michelin PS4




I choose what Torque App called Method 1, which is shows near mirror copy of coolant temperature.
I found out about this today by using wired scanner ICarSoft MB V2.0. My apology guys
31 July 2020
OBD2 protocol does not cover engine oil pressure & temperature and also does not cover transmission oil press + temp.
So ICarSoft MB V2.0 must have taken the trans temp info on the CanBus directly.
I am still looking for ways to get Torque App to request data to ECU or Trans Control Module ( if possible ) by using custom PID ( Parameter ID ) which can
work to get trans oil temp data from the car.
Last edited by S-Prihadi; Jul 30, 2020 at 09:39 PM. Reason: add info




01. The rear 265/35-18 michelin PS4 was so noisy at 160KM or higher . The track use caused the wear to be so un-even.
So I bought new tires already and new rims too and OEM rims get different ( lower cost ) tires for fun at track use.
https://mbworld.org/forums/e-class-w...ket-wheel.html
02. I data log all maintenance and now I just realized I need to get Caster correction bolts for my suspension. So Camber correction bolts too, because these two values interact with each other.
To those wanting to know more of Camber/Caster correction bolts which are the same item, see MUD's post :
https://mbworld.org/forums/e-class-w...confusion.html
By using excel to get a left to right view as the car accumulate miles and whatever hard use, its easier to detect wear and tear.
===Corrected on 7 Aug 2020=== MB Target Caster data previously I typed as MINUS -6* 57' , it should be positive. Image below replaced with correct one
I will need to go back to the tire shop using my OEM AMG rims and the new tires, and see what will 9mm lower on rear height and without spacer/s translate to........ on the alignment data.
Probably next week I will go.
For now its quite obvious that my front caster is OFF. I doubt 5mm spacer can impact to the extend of 20-ish minute of arc change.
Or the rear height increase of 9mm effecting Caster to that extend.
I am sure primary cause is the abuse at the track

Rear Height increase information below
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Last edited by S-Prihadi; Aug 7, 2020 at 07:05 AM. Reason: make data correction





I was trying to inspect camber + caster bolts and I can see more suspension components from car bottom and with tires removed.
How about the link's ball joint free-play ? Seems soft to me compared to other but much bigger arm/strut ball joints.
So I want to compare to new one tightness to have a good known "virgin" reference.
9 right turn vs 2 left turn of this race track. So left side link done 450% more work, compared to right side link.
Last edited by S-Prihadi; Aug 6, 2020 at 11:19 AM. Reason: add info




https://www.thk.com/?q=eng/node/256
Yep, boot is torn and ball joint kinda weak already
I think I best try aftermarket one, supposedly stronger and probaby stiffer... I hope
https://superpro.com.au/find/superpr...999501758/vid-
https://www.thk.com/?q=eng/node/256
Yep, boot is torn and ball joint kinda weak already
I think I best try aftermarket one, supposedly stronger and probaby stiffer... I hope
https://superpro.com.au/find/superpr...999501758/vid-




Locally it is available for me, but at 2.4x USA price or US$260.
One of the best price in USA I googled US$110 : https://www.maperformance.com/produc...-w176-trc12245
Anyway, if I do import myself US$50 shipping and 30% tax CIF value......will be US$210-220 for me landed.
So got it today
locally .
9 Aug 2020===CORRECTION. Seller gave me the 10mm ball joint version by mistake. By right I ordered a 12mm one. It was on store shelf no packaging anymore and seller was so swamped with work and did not measure ball joint thread end....LOL So tomorrow I will swap for the 12mm ones ========
My simple quickie review.
My left sway bar link, the torn ball joint (top) is SO WEAK already. The friction ball no more exert pressure and wiggling the threaded end of the ball joint.... the friction basically comes from the rubber boot. Say 100 grams.
The lower ball joint need a bit more pressure to wiggle, say 200 grams.
Spinning the threaded end round and round is easy. So the friction of the ball joints are basically gone.
The new SuperPro is reallly tight say 10 kilograms force, be it to wiggle the threaded end up and down or spinning it. Need wrench to spin, can't do by fingers.
Pushing down/up the ball joint I need to use my lower palm for stronger force and less pain.
I think for you in USA, the SuperPro price is a no brainer in terms of expected longevity vs MB original one.
Size alone, the total friction surface area of the MB's ball joint vs the SuperPro, I do not need to dismantle the rubber boot of the MB one, I can tell its probably only 40% of SuperPro.
As to how the suspension response will differ, I don't know yet, but my logic says that I might either get back brand new "tightness" feel when doing slalom or equivalent maneuver,
or the SuperPro I highly suspect will result in a more direct response aka better than MB original one. MB is probably targeting more for comfy "boat-like" feel, so can't blame MB design criteria.
Looking at the ball joint threaded end diameter of SuperPro being smaller than MB one for both the sway-bar and front strut mounting hole, I plan to source or make the bushing I shown.
The last thing I want is that ball joint threaded end ended up having freeplay within the "big" hole and make noise and/or equal to adding more freeplay.
Tomorrow I will measure with a caliper, what size of bushing ring OD and ID is needed for the strut and swaybar mounting holes to have a nice fitting with a "liner".

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Last edited by S-Prihadi; Aug 9, 2020 at 07:32 AM.




The ball joint itself at W212 length, still has easy 30mm more length to expand from its threaded shaft.
Definitely a good price in the US, although I’m a little hesitant considering your need to fabricate the custom part...
The Best of Mercedes & AMG




A present for you.






9 Aug 2020===CORRECTION. Seller gave me the 10mm ball joint version by mistake. By right I ordered a 12mm one. It was on store shelf no packaging anymore and seller was so swamped with work and did not measure ball joint thread end....LOL So tomorrow I will swap for the 12mm ones ========
Simple part number play : 12-245 or 10-245 , the middle rod is the same, only difference is the ball joint threaded end size 10mm or 12mm
So with 12mm size ball joint end, no need the custom bushing
Last edited by S-Prihadi; Aug 9, 2020 at 01:46 PM. Reason: add info

Good to hear that the 12mm fits off the shelf though. For the low cost this may well be my next project after I finish up the acoustics one!
Still interested to hear your driving impressions when you get the chance, especially for things like lane change and initial turn-in.




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Left wheel. Only CASTER correction bolt used.
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Right wheel get Caster and Camber correction Bolt
Target for Caster
Target for Camber, right wheel only
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Camber correction bolt
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General information
To be continued..............




WIS data is confusing.
It does not tell what part number or type of correction bolt/s get the 120 or 100 Nm torque

Were there 2 version over the years ?
M14 x 120 x 11.9 , the 11.9 number I dont understand. Usually 11.9 meant bolt grade/strength.
Okey I got 11.9 stamped bolts for the correction ones, the nut shows number 12. Assumed it is a pair. So I decided to use 100 Nm torque.
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NOTE, in some other WIS, the Strut Rod item 200 is sometimes called TORQUE STRUT

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So, I was curious. What Newton Meter equivalent value is a 180 degrees turn after 100 Nm torque applied ?
To be continued in 3 days............ me wanna enjoy 2 days at the island starting in 8 more hours....

Last edited by S-Prihadi; Aug 11, 2020 at 12:15 PM. Reason: correction




I replaced the lower ball joints, both. They are not noisy or worn bad, it is just not virgin "TIGHT".

I can spin its shaft with my fingers. I don't like it.
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WIS is : AR33.20-P-0427EW Remove/install follower joint of steering knuckle bearing 27.11.15
END.




These bolts themselves are an adventure on their own ... LOL.
and wow night and day difference! SO MUCH COMFORT!!! much better than the coilovers.... Before coilovers I use the same B4 with H&R lowering spring, this is not nice at all. I hit front suspension stoppers all the time using H&R . With B4 + eibach and WOW its almost like stock suspension. Maybe because H&R has same spring rate between 4 and 8 cylinders, whereas eibach has different part no between inline 4 and V engines. The drop is not as aggressive but its enough for me. It's a joy to drive now. It seems the B4 has progressive damping characteristics (or is it the eibach has progressive spring rates??) I dunno. but I LIKE IT. On speedbumps is very soft, but when took it for spirited driving still feels solid.
The coilovers did have damper adjustment, but if I set too soft it will hit the stopper (on the front). if I set it harder, it will not bottoming out but its not comfortable. I tried to adjust many times (they are 30 levels of damping force) I think the spring rates is too low for the front. my guess the spring rate is made for 4 cyl models.




- wow night and day difference! SO MUCH COMFORT!!! much better than the coilovers.
- It's a joy to drive now. It seems the B4 has progressive damping characteristics (or is it the eibach has progressive spring rates??) I dunno. but I LIKE IT. On speedbumps is very soft, but when took it for spirited driving still feels solid.
Sweet !!! Good to hear this
Based on your model W212.054 , , Eibach only offer 1 version. This one : https://eibachshop.com/index.php?p30...s-benz-e-class
It is a a linear spring for front, not progressive.
Rear spring is progressive.
You can find the data in the TUV certificate : https://eibachshop.com/download/E1025021.PDF
B4 is not progressive damper per se, but it does stiffen up based on velocity of the piston travel....as most damper would be.
So the faster you drive and make corner, it will stiffen up to a degree.
https://monroe.com.au/trade-corner/t...k-absorbers-do
"Shock absorbers are velocity sensitive hydraulic damping devices, meaning the faster the suspension moves, the more resistance the shock absorbers provide."
I had BC Racing on my 2010 Ford Fiesta 1.6L and within 1 week I removed it, I hate it.
Hard spring is not the best for road use, video below shows mathematical method of how our tires grip the road based on the spring rating :
If your Eibach is not too stiff ( as per the comfort you are enjoying now ), what you will experience very likely this improvement :
- Incredible straight line stability on poor road surface at high speed. I do not mean pot holes, but wavy kind of roads. 160 - 200 KM/H speed region.
- Jumping on our poor road to bridge joints at paid highway will not effect straight line performance by much, it feels safe at high speed.
- High speed lane change is nice and safer while quick, but not harsh. But don't zig zag like crazy past 160KM/H like how one would do it at under 100KM/H, our car is not a lightweight car.
Bilstein know how far exceed BC racing.
B4 is good value-performance $$ wise for W212.
I am so happy you actually can experience how comfortable a W212 can be while still able to be well handling car.
Its like a Grand Tourer car, not a sports car.
E10-25-021-01-22 for 4 cyinder model https://eibachshop.com/index.php?p30...s-benz-e-class
only difference is the front axle load rating on, for 6 cylinder model 1270kg and for 4 cyl model 1055kg. H&R only have 1 version, 1100kg front axle load. But good to know more details about that, it is linear spring on the front axle
Btw, its been a while I've been looking for the 6 cylinder model, its out of stock for quite some time. Only 4 cyl version were available. Until suddenly one day the seller whatsapp me that the spring I've been looking for is now back in stock. Eibach distributors were having some import restriction issues.







The rear ones are still the original (@49.000 km) but so far no noises or leaks. I'll keep them for the time being but I might go for a B6 on the rear if I can import them in the future.
I've purchased from a dealership in Dallas a couple weeks ago the single use bolts and nuts (A0009902403/A0019908454) as well as the bearing (A2049810025) just for safety. After I've remove the old bearing they were perfect, so that was a waste of money.... anyway
My car had no suspension noises beyond a hissing noise while going over speed bumps on the front left which is what drove me to start the job in the first place. At 49.000 km (30k miles) I was expecting for the shocks to have little wear despite the bad roads in Brazil. The leaky shock was weak, but yo my surprise, the left shock (which had no leaks) was completely shot. It didn't had enough pressure to move the rod back up after I've compressed it by hand. Also, the original shocks had a part number that is not listed as aplicable to my car (A2123200513). And they are the original ones since all the bolts were still covered with that protective wax Mercedes applies in the undercarriage components. Weird little thing.
A part from that, all the other suspension components were perfect. Even the boots. I've reused everything except bearings since I had already purchased new ones. Now I'm seriously considering replacing the rear shocks based on the condition of the front ones.
New BILSTEIN (22-194091) - B4 OE Replacement DampMatic®
Original shocks by Sachs
Looking on Google this PN shows up as applicable to the E300 CDI...
Spring compressor I've used. Very inexpensive and good to use.




I also have the same spring compressor as yours, aside from the other type I bought much earlier.






