Spongy Brake Pedal on Brand New B8.5 2016 S4 DSG7
03-19-2016, 04:00 PM
#11
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03-23-2016, 07:59 PM
#12
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Originally Posted by onlyturbo
Thanks for the reply everyone!
I did not try to bed them, I am at 700 miles now and same issue. I'll try to describe a little better.
Maybe spongy is not the right word, maybe not linear is a better way to describe it. It does feel a little like a DSG surge!
If the car is at rest in drive, when I slowly let go of the brakes to try and inch forward, the car does not move, and then letting go a little more and then the brakes let go and car moves too far to the point I need to brake again but harder. So not linear motion is a better description probably.
could it still be a brake bedding issue?
thanks
I did not try to bed them, I am at 700 miles now and same issue. I'll try to describe a little better.
Maybe spongy is not the right word, maybe not linear is a better way to describe it. It does feel a little like a DSG surge!
If the car is at rest in drive, when I slowly let go of the brakes to try and inch forward, the car does not move, and then letting go a little more and then the brakes let go and car moves too far to the point I need to brake again but harder. So not linear motion is a better description probably.
could it still be a brake bedding issue?
thanks
03-24-2016, 06:36 AM
#13
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i also have a 2015 with DSG
I have a 2015 with dsg and it behaves the same way. I think it's just a quirk with the dsg. Essentially the dsg is slipping the clutch briefly then engaging. Once it engages the car sort of lunges. If it were a manual you would slip the clutch more to allow more of a creep forward.
03-24-2016, 07:44 AM
#14
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Originally Posted by onlyturbo
Thanks for the reply everyone!
I did not try to bed them, I am at 700 miles now and same issue. I'll try to describe a little better.
Maybe spongy is not the right word, maybe not linear is a better way to describe it. It does feel a little like a DSG surge!
If the car is at rest in drive, when I slowly let go of the brakes to try and inch forward, the car does not move, and then letting go a little more and then the brakes let go and car moves too far to the point I need to brake again but harder. So not linear motion is a better description probably.
could it still be a brake bedding issue?
thanks
I did not try to bed them, I am at 700 miles now and same issue. I'll try to describe a little better.
Maybe spongy is not the right word, maybe not linear is a better way to describe it. It does feel a little like a DSG surge!
If the car is at rest in drive, when I slowly let go of the brakes to try and inch forward, the car does not move, and then letting go a little more and then the brakes let go and car moves too far to the point I need to brake again but harder. So not linear motion is a better description probably.
could it still be a brake bedding issue?
thanks
03-27-2016, 11:38 AM
#15
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Thank you for the information everyone, so it sounds as this is typical DSG clutch engagement sensitivity. Good to know about the TSB, I will check that as well.
BTW comfort mode behaves the same as dynamic.
BTW comfort mode behaves the same as dynamic.
03-29-2016, 08:31 PM
#16
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, as long as it is WAD ... Working As Designed.
03-31-2016, 02:07 PM
#17
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There is one more possibility here that just occurred to me this morning. You might be triggering EBA (Emergency Brake Assist). Based on speed, force with which the brake pedal is pushed and how quickly the brake pedal is pushed after releasing throttle, EBA tries to detect if the driver is trying to execute an emergency stop and if it thinks so, it increases the braking pressure to the point of fully applying the brakes. I haven't run into this with my current RS5, but my 2007 S4 seemed to be overly sensitive such that if I applied the brake too quickly after letting off the throttle it automatically slammed the brakes.
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