N0PLB

16000 miles and my rotors are chewed up to the point of needing replaced. Not impressed at all! Are the brake pads ceramic? If so I am going to down grade to a quality pad that isn't ceramic. I'd rather buy pads than to have to replace expensive rotors every 16000 miles. The dealer led me to believe that this was a pre-certified car with a 5 year unlimited mileage warranty. I'll find out tomorrow if they are going to fix it. Lucky I haven't taken ownership of this car yet!
My 2008 c300 with 99000 miles didn't show wear near like the glk does.

rmfnla

I just did mine at 22.5K and I agree that it's absurd that the rotors need to be changed; I don't think it's because of the pads, tho.

I got a full set of rotors and pads on ebay for under $300 and did it myself; easy enough.

BTW, the fluid MUST be changed every 2 years...

Rascally Wabbit

Approaching 50K miles on our 2010 (2WD) & brakes are original. Driving is a combination of interstate & local roads. You guys must be hard on brakes!

rmfnla

My wife drives it most of the time with our boxer in the back seat so I know she's not being agressive, and I tend to take it easy.

We also have a new Infiniti G37S and that's where we get our ya-yas out, especially since the dog doen't like being in that one...

Rascally Wabbit

Wonder if the master cylinder is defective & not allowing the pads to retract fully from the brake rotor. Is yours AWD?

N0PLB

Dealer told me that it didn't have ceramics on it. He also told me it was from having a light foot on the brakes. Then he told me that they would replace the front rotors and that I should ride the brakes at 30 mph for a while to straighten up the back ones. What an idiot!! First riding the brakes caused the problem and then riding the brakes would cure it. Make up your mind! He also told me that Mercedes uses softer rotors and was designed for city driving and panic stops and that is why the soft foot and slow easy stops destroyed the rotors.
Thank God he isn't the mechanic.
Oh buy the way the warranty went from 5 yrs unlimited mileage to 4 yrs 50000 miles to 2 yrs 35000 miles or the remaining of original warrenty.
Also while heading home from the dealer on a busy highway I was flagged over due to the dealer leaving my gas cap off.
Do yourself a favor and don't deal with Plaza motors in St. Louis MO on Olive street in Creeve Coure.

rmfnla

Mine is RWD; not sure why that would matter...

I have heard this from people I trust, and it does make sense.

The rest of the crap you're being fed is pure BS; I suspect a softer rotor is less likely to warp or shatter but that's just guesswork.

My solution was to go aftermarket for both pads & rotors, a good deal at half the price and they certainly can't wear out any faster than the OEM...

iwinit

My wife's 2013 GLK350 4Matic had all 4 rotors and brake pads replaced under warranty in 1 year 7000 miles. It was a known issue. I don't know if MB has fixed this problem for 2014 and 2015 model years. With new rotors and brake pads, the brake feel has been better and no more squeaking brake noises. But still, my BMW 535i has much stronger breaks. I simply have less confidence in GLK when I'm driving it occasionally.

mbzusr

It was possibly with older models, but I have heard Mercedes uses softer pads but not softer rotors.

rmfnla

Then why do the rotors wear so damn fast..?

mdof4

Just turn 40k needed frt and rear brakes. Ya rotors more front get more wear. Now there is plenty of rotor there even when see the large inside and outside lip. Original pads are not ceramic that's why all the brake dust. I replaced rotors and all pads with ceramic they run cooler and very little brake dust. The only thing you might notice is a different feel in pedal. Being ceramic when forced against rotor and not being any kind of metallic. ceramic does not grab as fast due to fact they smooch ever so slightly before you feel the stopping power. Also recommend brake sensors they cheap, unless you are ever so careful removing them even then sometimes they do not want to stay in. I went with bec arnley $230 frt and rear rotors and pads

fabbrisd1

To Mr MO from St Louis - please calrify what you "think" your warranty is - if from a MB delaer - and if GLK is Mercedes Certified - then you have balance of the original MB 4yr/50K mile new car warranty based form original date in-service PLUS 1yr/unlimited mileage Mercedes Certified warranty on top of that !

skr

I just posted this in another thread, but it also seems to apply here to:

My 2010 was doing the same thing, the rotors are warped. The stock rotors have a high iron content and they tend to warp & rust easily. Dealer said they don't recommend resurfacing these rotors just replacement. When my rotors warped I still had a lot of life left in my pads, so I continued to drive it for 15K miles before I changed them. Other than the vibration I didn't sense a safety issue. I just changed the Rotors & Pads on mine and they feel so much better now. I went with an aftermarket setup that I'm really happy with. You can see the details of that in this thread:

https://mbworld.org/forums/glk-class...-calipers.html