All Things Mk5 > How to Guides / Troubleshooting
Lurching under braking
Dan_FR:
Sounds quite normal to me under heavy braking. Heavy braking in gear will result in slowing the engine very quickly against a huge rotating mass, with the engine fighting to idle/maintain the revs in a smooth manner. If it didnt do this, every time you lifted off throttle in gear, you would have a huge lurch forward with the sudden and drastic engine braking as opposed to the fairly smooth transition you should have.
If its a much more physical issue, where you can actually feel weight/mass shifting under heavy braking, then i would explore further, checking engine and gearbox mounts, front arm bushes, subframe etc.
AJP:
--- Quote from: rich83 on August 07, 2015, 09:35:52 am ---hmm... strange one... opcornsoda:
Does the same happen if you brake after youve dipped the clutch?
--- End quote ---
Can't say I've tried Rich, but I'll give that a go at some point - I see your thinking.
AJP:
--- Quote from: Dan_FR on August 07, 2015, 10:12:58 am ---Sounds quite normal to me under heavy braking. Heavy braking in gear will result in slowing the engine very quickly against a huge rotating mass, with the engine fighting to idle/maintain the revs in a smooth manner. If it didnt do this, every time you lifted off throttle in gear, you would have a huge lurch forward with the sudden and drastic engine braking as opposed to the fairly smooth transition you should have.
If its a much more physical issue, where you can actually feel weight/mass shifting under heavy braking, then i would explore further, checking engine and gearbox mounts, front arm bushes, subframe etc.
--- End quote ---
Agree in principle Dan, although I've never heard the mk5 GTI being described as lurchy... so I think it may well be an underlying issue rather than a characteristic of the car.
I did wonder whether it was flywheel related, then read more about the subframe bolt issue and it kind of makes sense. That, or as you suggest, a worn mount.
May well have a drive over to Statller at some point, see if they can take it for a little diagnostic spin!
AJP:
And cheers for the input by the way guys
grumpy:
Hi,
just wondering, does your car have the whiteline ALK?
I know someone who had the whiteline fitted, he said it became 'grabby' at times and needed lubricating to eliminate what you're describing. I think he used silicone spray on it. A while later he fitted the better designed superpro ALK and no more grabbiness - something to do with a metal collar - and why I went for the superpro kit.
Either way, hope you get it sorted.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version