Cruise control fault or feature?

[altea-ego]

I've been using the cruise control on my Altea for years without any issues, just used it on the leon FR for the first few times, and found it does not work like the Altea.

I expected that when set to a speed such as 30mph for an average speed section or general limit for it to stick to this speed. What I found is that going down a hill it did not apply the brakes to maintain the set speed. By the bottom the car was doing 40 before returning to 30 once the momentum had run out.

Anyone else experienced this?

 

[Pinky]

It has engine braking only.

 

[kiddo]

My car is the same. Have read in the manual only adaptive cc will brake downhill to hold set speed

 

[dw911]

It has engine braking only.

Are you sure, it says something about it attempting to reduce the speed downhill with the cc active but only to 3 gear (dsg) the owners manual calls it hill decent control or something.
That said I've never got it to work on any of my Leons

 

[Damo H]

Not sure if the hill descent control works in conjunction with cruise control.

On my previous mk 2 leon, in cruise control down a hill it would do as you've described, increase speed if the engine breaking in that gear wasn't enough.

However in normal driving (CC off) if I tapped the breaks when gathering speed down a hill, the DSG would down shift to increase engine breaking automatically.


Sent from my iPhone using Tapatalk

 

[MyLeon]

Are you sure, it says something about it attempting to reduce the speed downhill with the cc active but only to 3 gear (dsg) the owners manual calls it hill decent control or something.

That said I've never got it to work on any of my Leons

That refers to the DSG box changing down when you are braking. Only the ACC will apply the brakes, the standard CC doesn't.


2015 Leon ST FR 184 DSG

 

[dw911]

That refers to the DSG box changing down when you are braking. Only the ACC will apply the brakes, the standard CC doesn't.


2015 Leon ST FR 184 DSG

Yes relised it would only apply to the dsg gearbox, but on none of mine does it work as the handbook described, don't know maybe I miss understood the handbook description of how it works

 

[Luckypants]

If I set a speed using my (non-adaptive) cruise and the car starts to speed up downhill, then the DSG WILL change down to try to limit the car's speed. It only does this after the speed has increased by 10mph or so though, so not very useful for avoiding a speeding fine. Also, if the car continues to speed up and the engine revs increase up to around 4200rpm (diesel) the DSG box changes UP to protect from engine over-rev, but this reduces the engine braking effect.

 

[altea-ego]

Thanks for the replies, good its not a fault and guess I will just have to watch out for it. I guess if the Altea was the same, it was just the higher compression of a diesel engine that made it more effective. It really felt like the brakes were being applied at times.

 

[matthab]

If you have ACC it will hold that speed down a hill.

 

[Pinky]

Are you sure, it says something about it attempting to reduce the speed downhill with the cc active but only to 3 gear (dsg) the owners manual calls it hill decent control or something.
That said I've never got it to work on any of my Leons

I'm sure.