My GLK350 Mods





My bespoke stainless brake lines are in.

These are the fluids I will be utilizing. I am intrigued to see how well the Brembo seal conditioning fluid will work for the caliper assembly. It is made in the United Kingdom and the brake lubricant is made in Germany. The brake fluid is very simple Brembo DOT4 from when I bought bulk last year. I think most people over complicate with the brake fluid selection.

Massive front pads. I regret buying these very expensive pads due to the fact they are very dusty right out the packaging! No doubt they will bite hard.

When you install any of the pads they are directional with the stainless shims. As a matter of fact, majority of the performance brake parts have orientation to them. From rotors, pads, calipers, spring clips, to brake hoses, the orientation is important (usually indicated by arrow)!


These replacement bleeder nipples were not too expensive from the Mercedes-Benz dealer. They arrive as a package of two.

Here's the original bracket with new updated flange bolts. The increased surface area and hex head is a great improvement over the original X204 bolts.
Last edited by JohnnyC; Dec 16, 2019 at 10:15 AM.
Also you might be asking why didn't I buy matching calipers? Well that is because the larger rear caliper only comes in dark grey, red, bronze orange. Light grey is no longer offered for the bigger calipers, although they are utilized in junior AMGs like the GLC43 or E43. The front I wanted the twin bleeders instead of the later simplified single bleeder; in addition I liked the bracket on the older C219 caliper despite having to use a big washer.
I might be doing a vented piston setup, but it is quite costly at $500 USD for the fronts. The bridgepipe might also get replaced by an unpainted Brembo GT-s or GT-R caliper bridgepipe.

I am hoping to get everything installed by the end of March. Nearly all the parts are here; just gotta schedule time to do it and customize some parts.
I really like the dedication you have with your GLK.




The front are from CLS63 W219 chassis. And I found out you cannot utilize stock wheels with the front 360mm rotors; the 390 will give more clearance with the 6 pistons.
I'm about 95% done with this project. The brakes have been on the car, last two things are new dust shields and stainless brake lines for the rear.







The front now has custom made 60 centimeter length lines by Goodridge. Before I was using the X166 166-420-03-48 and it was a perfect fit. When you switch to the stainless lines you have to route them differently than OE, but there was no issue with it binding on the suspension or wheels.
The rears are still rubber from 212-428-00-35. I found through my research this was the perfect length. None of the C63 lines I ordered will fit a GLK, so therefore I installed them on my W205 C300.
Lastly, I just ordered new Carbon Ceramic caliper dust shields from the dealer.
Last edited by JohnnyC; Apr 10, 2019 at 09:36 AM.




Only issue i encountered is a noise from creeping. By that I mean from a very slow speed (10km) to zero will develop a high pitch noise. I might modify the pads or try the other different types of pads. System should be properly lubricated and bedded in.
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The transmission mount was very easy and quick; whereas the two engine mounts are extremely time consuming and challenging. I am using 204-240-35-17 and 212-240-10-18 as parts. The new transmission mount is much more stout and stiff than our original mount.




This is the adapter that should make the wheel buttons function. But it seems like no one knows how to connect it properly even with the instructions. If YouTube w222 steering wheel adapter a video comes up where the new wheel is working using the adapter.
This is the new steering wheel.





















