Vibration under breaking

[Husky]

I've got a 2019 G70 3.3T AWD, somewhere between 5500 and 6000 miles it developed a vibration under braking. At first I thought maybe it was the road surface, but now at 7k miles it's gotten worse and is really annoying. The car's going in for service next week anyway so I've asked them to address it. I suspect it will need new front rotors. Very annoying and surprising, given that the car hasn't seen any extreme driving (no track, no emergency braking). I'm wondering if anyone else has had this issue.

 

[tarhoosier]

I went to the top right search box and entered "rotors" and it shows several threads with some discussion that may interest you.

 

[Toddasaurus]

Others have had this issue, especially well documented in the Stinger forums. Genesis may end up replacing rotors and pads, or maybe not.

Chances are you can fix it by re-bedding those brake pads. Drive very fast, then brake relatively hard down to a very slow speed (not to a complete stop, though). Rinse and repeat a few times and symptoms should resolve.

I do it every now and again, not so much to resolve brake-related problems; rather, I drive like a jackass sometimes.

 

[Husky]

I went to the top right search box and entered "rotors" and it shows several threads with some discussion that may interest you.

Thanks. I'll check it out. Sorry if I started a new thread unnecessarily.

 

[Husky]

Others have had this issue, especially well documented in the Stinger forums. Genesis may end up replacing rotors and pads, or maybe not.

Chances are you can fix it by re-bedding those brake pads. Drive very fast, then brake relatively hard down to a very slow speed (not to a complete stop, though). Rinse and repeat a few times and symptoms should resolve.

I do it every now and again, not so much to resolve brake-related problems; rather, I drive like a jackass sometimes.

Thanks. I have tried that, but it just seems to get worse. I'll give it another try. I've successfully used that technique myself to solve a bad brake vibration after taking my M3 out of storage. Usually that problem occurs when the car sits a long time, especially in damp conditions, and with certain types of pads. (Some Stoptech pads ruined the rotors on my E46 M3 after sitting out in the rain for just a couple of days!)

 

[Toddasaurus]

Thanks. I have tried that, but it just seems to get worse. I'll give it another try. I've successfully used that technique myself to solve a bad brake vibration after taking my M3 out of storage. Usually that problem occurs when the car sits a long time, especially in damp conditions, and with certain types of pads. (Some Stoptech pads ruined the rotors on my E46 M3 after sitting out in the rain for just a couple of days!)

Dang... Let us know how it goes!!

 

[danygenesis]

Thanks. I have tried that, but it just seems to get worse. I'll give it another try. I've successfully used that technique myself to solve a bad brake vibration after taking my M3 out of storage. Usually that problem occurs when the car sits a long time, especially in damp conditions, and with certain types of pads. (Some Stoptech pads ruined the rotors on my E46 M3 after sitting out in the rain for just a couple of days!)

I had the same problem and fixed (at least temporarily) re bedding the brake pads. Take a look at this Stinger thread.

FAQ: Vibration under braking: warped rotors? NO!

The following is an FAQ about why your Stinger is experiencing vibration under braking. I’ve seen a lot of talk on the Facebook groups about this issue, and a lot of misinformation, and I’ve gotten tired of typing the same thing over and over again, so here’s a comprehensive FAQ that I can link...

stingerforum.org

 

[Husky]

I had the same problem and fixed (at least temporarily) re bedding the brake pads. Take a look at this Stinger thread.

FAQ: Vibration under braking: warped rotors? NO!

The following is an FAQ about why your Stinger is experiencing vibration under braking. I’ve seen a lot of talk on the Facebook groups about this issue, and a lot of misinformation, and I’ve gotten tired of typing the same thing over and over again, so here’s a comprehensive FAQ that I can link...

stingerforum.org

Thanks for the link, that's a great post. I have had some luck with re-bedding in the past, so I guess I'll give it another try. It does suck that the pads are this poor at dealing with the heat of fairly normal braking - I could understand it more if it only occurred at a track. I wonder if the pads from the Dynamic edition would be much better. Anyone try this?

 

[Toddasaurus]

Thanks for the link, that's a great post. I have had some luck with re-bedding in the past, so I guess I'll give it another try. It does suck that the pads are this poor at dealing with the heat of fairly normal braking - I could understand it more if it only occurred at a track. I wonder if the pads from the Dynamic edition would be much better. Anyone try this?

Yessir. Right here...

Part number for "performance" brake pads on Dynamic version?

The pads are on the more expensive side; but, results appear to be very good for the people who've installed them this far.

 

[Husky]

Yessir. Right here...

Part number for "performance" brake pads on Dynamic version?

The pads are on the more expensive side; but, results appear to be very good for the people who've installed them this far.

Great! Glad to hear it. It's too bad there aren't any good aftermarket options yet. I talked to the service department/Genesis manager about this today, and asked them to see what price they could get me on the better pads. We'll see if they will beat the online prices. If not, I'll order them. I'm looking forward to the better pads, but first I have to try re-bedding.

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[ikonn]

Check my post under Suspensions, Brakes

Brake Vibration?

They machined my rotors.

 

[ephone1]

I put the "Europsec" brake pads on my car at approx 500 miles with the intention of avoiding this. I researched the hell out of this issue on the Stinger forums and believe the stock pads are the source of the issue, but I only have 3,200 miles, so it's too early to know for sure.

 

[danygenesis]

If the vibration cause is like the Stinger (soft/bad pads), changing/resurfacing rotors will not fix the problem, that will alleviate for a couple of thousand miles but it will return. Time will tell.

 

[Husky]

If the vibration cause is like the Stinger (soft/bad pads), changing/resurfacing rotors will not fix the problem, that will alleviate for a couple of thousand miles but it will return. Time will tell.

I'm pleased to report that three or four hard stops from 80 down to 30MPH seem to have pretty much eliminated the vibration (at least for now, hope to put new Euro pads on soon).
However, once I got home I was surprised and concerned to see that both front rotors now had a bluish band around the center section of the rotor's circumference, presumably from excessively high temps (even though they felt fine and I didn't detect any brake fade while re-bedding). This is getting a bit crazy. Never had any of this with my BMWs (including the non-M models).
After doing some research, the bluing seems to be a fairly common occurrence for people tracking their BMWs and Porsches. (Still wouldn't expect it after just three or four hard stops!) There seems to be disagreement on whether it's a bad thing (the bluing) and whether or not it indicates that the rotor has been compromised.
After driving it some more and doing some more modest braking, the blue color seems to have faded some (worn off or covered by new pad deposits?) I hope the new pads will end this madness.
I would say that if Genesis expects their car to be taken seriously as a sports sedan, they need to make better pads standard on all models, not just one limited edition. These vehicles aren't light, so there's a lot of energy being dissipated to haul them down from even normal highway speeds. This issue seems to me to be the vehicle's Achilles heel from a performance standpoint. Luckily it may be easily remedied with the proper pads.

 

[Husky]

The local dealer turned the rotors and said they would match the price of the Euro pads I found on-line at Conicelli Hyundai in PA (about $205 per axle). This looks like the best price I could find for the part numbers given earlier (they offer free shipping for orders over $200). Still the priciest pads I've ever bought, since there's no other options yet. I hope to install them and bed them in today.

 

[pvdelisi]

I've got a 2019 G70 3.3T AWD, somewhere between 5500 and 6000 miles it developed a vibration under braking. At first I thought maybe it was the road surface, but now at 7k miles it's gotten worse and is really annoying. The car's going in for service next week anyway so I've asked them to address it. I suspect it will need new front rotors. Very annoying and surprising, given that the car hasn't seen any extreme driving (no track, no emergency braking). I'm wondering if anyone else has had this issue.

Yes I'm in Kamloops BC and have same problem. I mentioned it at first service and they tried telling me they are not responsible for break products and warranty would not cover this. I insisted and talked to manager. Now they want to take pictures and send in to Genesis head office. Still ull no clarity on if this will be covered. Please tell me how your dealership handles this? Michel D. Kamloops, BC. Canada

 

[Husky]

Yes I'm in Kamloops BC and have same problem. I mentioned it at first service and they tried telling me they are not responsible for break products and warranty would not cover this. I insisted and talked to manager. Now they want to take pictures and send in to Genesis head office. Still ull no clarity on if this will be covered. Please tell me how your dealership handles this? Michel D. Kamloops, BC. Canada

Multiple G70 owners in this forum have had the same experience with the brakes. Genesis apparently tells the dealers to try turning the rotors first, and then if this doesn't fix it they will replace the rotors. If the dealer won't do that, you need to contact Genesis.

 

[Truck Norris]

Interesting.... My take on warranty service is you would think that as a dealership owner you would want as much warranty service as possible as you are paid for the work. As a franchise you don't pay directly, Genesis Canada, etc.does. Assuming you can justify and prove it is warranty and there is no negative from corporate or lost vehicle sales directly, why screw around and piss off the customer? (genuinely curious here if someone has an answer).

Also in Canada. I had my rotors machined under warranty, still have vibration I believe is pad related. Lots on this topic here.

 

[Toddasaurus]

Yes I'm in Kamloops BC and have same problem. I mentioned it at first service and they tried telling me they are not responsible for break products and warranty would not cover this. I insisted and talked to manager. Now they want to take pictures and send in to Genesis head office. Still ull no clarity on if this will be covered. Please tell me how your dealership handles this? Michel D. Kamloops, BC. Canada

I bet they're just a bunch of obese pompous, lazy jerks and would rather not even deal with anything. This, and they're dumb.

@Husky - how are you liking your euro spec brake pads?

 

[Husky]

I bet they're just a bunch of obese pompous, lazy jerks and would rather not even deal with anything. This, and they're dumb.

@Husky - how are you liking your euro spec brake pads?

I like them, although they don't seem real linear or progressive. If you push on the pedal just a bit harder than usual, you suddenly get into some real strong braking force. But I've adapted to it, and I like how strong it feels. So far no more vibration with the new rotors and the Euro pads.