Jolting whilst driving

[LC_Tom]

Hi all
Have a seat Leon 63 plate FR. Wonder if anybody could help.
Whilst driving the car it all of a sudden just jolts feels kind of like the brakes are being pressed hard (but doesn’t slow down).
It’s hard to explain but it’s like a sudden hard jerk and still drives fine. Happened 3 times the other night whilst going round a roundabout it done a massive one to the point I thought somebody hit my car and then on the way back on the motorway there was 3 little ones.
Like I said it’s hard to explain but has anybody had similar issues because I can’t seem to find another post regarding the issue

 

[SteveGSXR600K1]

As it happens when the car it more loaded up on one side when going around a roundabout, it could be suspension related with something like a broken spring, etc. Get it checked out at a local garage or Kwik-Fit that should probably do a free healthcheck.

 

[SuperV8]

Someone on here had an ABS module/pump fault which gave similar issue I think.

 

[LC_Tom]

Someone on here had an ABS module/pump fault which gave similar issue I think.

Morning mate thankyou for your reply. I’ve had a look through the forums but can’t seem to find any, I’ll have another look when I get time, cheers. I was sitting in it this morning and it did it whilst it was idling and then fine the whole way to work

 

[LC_Tom]

As it happens when the car it more loaded up on one side when going around a roundabout, it could be suspension related with something like a broken spring, etc. Get it checked out at a local garage or Kwik-Fit that should probably do a free healthcheck.

Had it all checked over bud, it’s been to the dealership I got it from and they can’t seem to find anything with it, when I’m explaining it to them I must sound crazy lol. No fault codes either.

 

[SuperV8]

Hmm, the thread I was thinking of was actually a locking wheel: So a little different to your fault.

Drivers wheel completely locked

Please help! My drivers wheel is completely locked the car is in undriveable. we’ve changed the calliper, disc, pad, connector, fluid, tube, pumped the brakes but it’s like the fluid is going to the brake but not returning… It’s like the piston is stuck and this wheel completely locks up. Is...

www.seatcupra.net

I see you also have another thread - High idle and fans running. Did you get to the bottom of this?
If not - maybe they are related to an electrical fault?

Thinking out loud - the revs should pick up when you touch the clutch pedal - maybe this clutch switch is playing up?

Do you have auto/radar braking?

 

[LC_Tom]

Hmm, the thread I was thinking of was actually a locking wheel: So a little different to your fault.

Drivers wheel completely locked

Please help! My drivers wheel is completely locked the car is in undriveable. we’ve changed the calliper, disc, pad, connector, fluid, tube, pumped the brakes but it’s like the fluid is going to the brake but not returning… It’s like the piston is stuck and this wheel completely locks up. Is...

www.seatcupra.net

I see you also have another thread - High idle and fans running. Did you get to the bottom of this?
If not - maybe they are related to an electrical fault?

Thinking out loud - the revs should pick up when you touch the clutch pedal - maybe this clutch switch is playing up?

Do you have auto/radar braking?

I did mate the garage had the DPF chemical cleaned but was still doing it and the light came on so they took it to a specialist who dropped the DPF off and done it that way and put a new pressure sensor on, so far it idles fine and no fans.
The issue I’m having now they thought it would have been related to the DPF but no still happening lol. It’s intermittent so doesn’t do it all the time and they drove it like 20 miles and it never happened to them… typical
No auto braking or radar on my car either mate it feels like the brakes are being slammed on is the only way to describe it but it doesn’t slow down or lose speed. Baffled lol

 

[SuperV8]

Ah ok,
Some have had problems with the crank sensor:
Cuts the engine out for a split second - which could feel like the brakes coming on?
Clutch debris seems to collect on the crank sensor (next to the clutch) and cause intermittent power loss:

2.0 tdi FR engine is occasionally cutting out for a fraction of a second and needs a bit of turning over to start half the time. No fault codes.

Cheers guys. Had a look at the pins and all seems good. Can it have an intermittent fault without throwing a code? Will look to replace asap

www.seatcupra.net

 

[LC_Tom]

Ah ok,
Some have had problems with the crank sensor:
Cuts the engine out for a split second - which could feel like the brakes coming on?
Clutch debris seems to collect on the crank sensor (next to the clutch) and cause intermittent power loss:

2.0 tdi FR engine is occasionally cutting out for a fraction of a second and needs a bit of turning over to start half the time. No fault codes.

Cheers guys. Had a look at the pins and all seems good. Can it have an intermittent fault without throwing a code? Will look to replace asap

www.seatcupra.net

Oo that could be another possibility but the car starts straight away off the key with no power loss, when it’s jolted I haven’t noticed it cutting out and I haven’t restarted it if it has. It’s definitely some sort of sensor but have no idea which. The garage I’m taking it back to asked me if it seems like a misfire when it happens but it’s a strange one to even describe