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noise at low speed


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Took it for a bit of a drive today, first time since I've bought it really, and noticed something that doesn't seem right to me.

 

The car makes a bit of a noise, it sounds similar to driving on a rough road surface and you can feel it too. Only really noticeable at low speed, <30MPH, and more so <20MPH. It also feels like their is some resistance in the wheels, but that may just be the 4WD.  I've had several 4WD SUVs before but not on something low down with low profile tyres so perhaps the feeling of resistance is nothing, but their is a noise that seems wrong.

Edited by snowathlete
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Could it be slightly corroded discs that you are hearing?

If mine sits for a few days I get a rough noise which comes from the brakes due to rust on the surfaces a bit of hard braking gets rid of it :wondering:

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7 hours ago, DEL80Y said:

Could it be slightly corroded discs that you are hearing?

If mine sits for a few days I get a rough noise which comes from the brakes due to rust on the surfaces a bit of hard braking gets rid of it :wondering:

 

Good thinking but i’m pretty sure it’s not that.

 

I’m guessing the resistance is speed sensitive steering (maybe firmer than my other car) combined with it being 4x4. At low speeds it’s a bit like driving with the handbrake partly on, so when you stop accelerating it slows quicker than you’d expect. Is that normal?

 

But the noise is unexplained. It’s going for a post purchase look over by my mechanic soon but perhaps someone here has had the same sound.

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There is absolutely no resistance from the 4x4 system it doesn't work like that in this car it is not a constant 4x4 like SUVs....

It is more than likely the rear pads are partially seized in the carriers giving you the feeling of handbrake being on if it has been laying around for a few weeks(Months) not getting run. 

Look up Haldex 4 system its a on demand 4x4  Bit from Skoda about it
The advanced four-wheel drive system is designed to tackle those challenging conditions that would leave two-wheel drive competitors stranded. Power distribution is controlled electronically by a fourth-generation Haldex clutch. Under normal traction conditions, 96% of the total power is directed to the front axle. In adverse weather conditions – similar to those experienced in the UK last winter – the Haldex system reacts in a split second to redirect power to those wheels with better traction, greatly increasing driving safety.

Edited by DEL80Y
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3 hours ago, DEL80Y said:

There is absolutely no resistance from the 4x4 system it doesn't work like that in this car it is not a constant 4x4 like SUVs....

It is more than likely the rear pads are partially seized in the carriers giving you the feeling of handbrake being on if it has been laying around for a few weeks(Months) not getting run. 

Look up Haldex 4 system its a on demand 4x4  Bit from Skoda about it
The advanced four-wheel drive system is designed to tackle those challenging conditions that would leave two-wheel drive competitors stranded. Power distribution is controlled electronically by a fourth-generation Haldex clutch. Under normal traction conditions, 96% of the total power is directed to the front axle. In adverse weather conditions – similar to those experienced in the UK last winter – the Haldex system reacts in a split second to redirect power to those wheels with better traction, greatly increasing driving safety.

Appreciate the info DEL80Y.

 

Could be partially seized calipers, might be worth looking into.

 

Thinking about it though it feels more gearbox related, it feels very similar to engine braking when you are going downhill in a lower gear. Hope there is nothing wrong with the DSG.

Edited by snowathlete
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One thing I found lacking on mine was the brakes had not enough bite for my liking and a lot of 4x4 owners are the same :wondering:

I have upgraded my pads to Black Diamond Predator on both front and rear and will be changing to the same discs once they wear out.
The difference was again night and day dont know if was because the rear pads were glazed due to being stuck in carriers but well worth the price.

Also might be worthwhile to get a proper 4 wheel alignment done as I found this greatly helped with rear tyre wear your looking at someone with Hunter wheel alignment click the link and put in your postcode and find it local.

Does yours have Hill Hold activated?

Edited by DEL80Y
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There's a place not too far away that has a very expensive and very accurate alignment system. Don't think it was Hunter but it was something top notch. We used them last year on our other car and were very impressed. We may be going out that way tomorrow. I'll be sure to get it done.

 

Not sure about hill control. Not been near a hill yet, but will try to rectify that over the weekend. :happy:

Edited by snowathlete
hill control.
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7 minutes ago, jafo said:

@snowathlete What mileage and if / when DSG was serviced ?? 

It's done a little over 42,000 miles, so it needs new oil. Both the DSG and Haldex are getting serviced next week. If it is anything to do with the DSG that I hope it'll be fine after an oil change.

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1 hour ago, snowathlete said:

It's done a little over 42,000 miles, so it needs new oil. Both the DSG and Haldex are getting serviced next week. If it is anything to do with the DSG that I hope it'll be fine after an oil change.


make sure that when they are doing the Haldex that they take the pump out and clean the mesh as this is a common problem of clogging up:angry:
 Even the The Dealers don't do this at a standard Haldex oil change..

Haldex Fix   look at the first post then print it out so whoever is doing it can see where the problem liesB)

Edited by DEL80Y
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Thanks DEL8OY that's very helpful. Great write up and looks like this ought to be routine as part of the change. We don't want to leave all that sludge on the filter! Makes you wonder if there is other sludge left hanging around in the system somewhere, surprised they don't do some kind of flush. My husband enjoys doing jobs like these but he's disabled now so can't manage this sort of thing without physical help. We own a pair of ramps but wouldn't be able to get it up level anyway.

 

According to the previous owner the local dealership want £69 to do it. They might want more to do it properly though! I guess we'll probably ask our local mechanic. 

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1 hour ago, DEL80Y said:

Yip fixed price service cost is £69 for 4x4 and £179 for DSG.

Might be advisable to post on here to get a locally recommended VAG specialist as they will more than  likely do it cheaper and usually do a better job..From my experience of Dealers.

 

Couldn't agree more!!

 

Drefaldwyn

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3 hours ago, DEL80Y said:

Yip fixed price service cost is £69 for 4x4 and £179 for DSG.

Might be advisable to post on here to get a locally recommended VAG specialist as they will more than  likely do it cheaper and usually do a better job..From my experience of Dealers.

 

Thanks DEL8OY, I'll do that.

 

Regarding the noise and resistance at low speed - we went out today and my husband narrowed it down to the gearbox as it only happens in the gears 1-3, if you are in fourth gear and driving along smoothly, take your foot off the accelerator then of course the car begins to slow down gradually, when it switches down into 3rd gear (at about 20-21 MPH according to my husband) you straight away get that feeling of resistance. So we are hoping that the gearbox doesn't have a big problem and it is just that it needs an oil change. Makes it more important to take it to a good garage where they will do a good job of it. Regarding noise, I can't comment on that today because we had the blowers going as it was cold out!

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23 hours ago, snowathlete said:

"take your foot off the accelerator then of course the car begins to slow down gradually, when it switches down into 3rd gear (at about 20-21 MPH according to my husband) you straight away get that feeling of resistance. "

 

Isn't this just normal engine braking - when slowing down engine braking has more effect in the lower gears

 

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10 minutes ago, bigjohn said:

 

Isn't this just normal engine braking - when slowing down engine braking has more effect in the lower gears

 

 

I sure hope so. But if it is then it's much more noticeable than on any car I've ever had before.

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33 minutes ago, snowathlete said:

 

I sure hope so. But if it is then it's much more noticeable than on any car I've ever had before.

 

You shouldn't compare different cars - you need to take into account weight, engine size, fuel type, gears ratio, wheels size, tyres material, overall size of the vehicle, etc.

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23 minutes ago, jafo said:

 

You shouldn't compare different cars - you need to take into account weight, engine size, fuel type, gears ratio, wheels size, tyres material, overall size of the vehicle, etc.

 

I agree all those things are factors, but without having driven another Superb it's not really possible in cases like these to know if it is normal or a fault. All I can do is compare to my other driving experience and doing that I noticed that this was odd compared to my experience. It's certainly not a desirable thing you would design into a car deliberately. Whether that means it's a fault, or normal, for the Superb though I can't really say at this point. I think all I can do right now is get the transmission oil changed and see how it drives after that.

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1 hour ago, snowathlete said:

 It's certainly not a desirable thing you would design into a car deliberately. 

 

Do you mean it's a bad thing to desgin in engine braking? I think it's a good thing especially to control your speed on steep downhill stretches - eg French motorways

 

I've only driven manual Superbs but I'm interested to know how the DSG drives. My father-in-law had a Chrysler Neon auto  that I borrowed a few times. Part of my journey to work involves a steep downhill section - i was surprised when using cruise control downhill, when the speed increased beyond the set point the car automatically changed down to increase engine braking to maintain a constant speed.

That was the good bit -- but the bad bit was t drank like George Best, as the rev dial went up the fuel gauge went down

Edited by bigjohn
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I'm using engine braking all the time and DSG will shift down automatically when rpm is too low - but it's more DSG built-in safety future, same as it will shift up when rpm is too high.

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3 hours ago, bigjohn said:

 

Do you mean it's a bad thing to desgin in engine braking? I think it's a good thing especially to control your speed on steep downhill stretches - eg French motorways

 

I've only driven manual Superbs but I'm interested to know how the DSG drives. My father-in-law had a Chrysler Neon auto  that I borrowed a few times. Part of my journey to work involves a steep downhill section - i was surprised when using cruise control downhill, when the speed increased beyond the set point the car automatically changed down to increase engine braking to maintain a constant speed.

That was the good bit -- but the bad bit was t drank like George Best, as the rev dial went up the fuel gauge went down

 

No, what I meant was in the scenario I'm talking about it's undesirable, other car's I've driven don't act like it, they drive normally without that feeling of resistance. So either it is a fault or it is normal in the Superb, but if it is normal I don't see it as desirable in the scenario I'm experiencing, which is on level ground. To give a bit of valid comparison the other gears don't have the resistance, those gears feel like other cars I've driven, nice and smooth and under your control. The DSG box on the Superb is otherwise very good btw, quick and smooth and consistent, much better than our Hyundai. I really like it. Your description of engine breaking under cruise control is exactly the same as on our Hyundai. I've not tested the cc on the Superb yet, but I would expect it to act the same way.

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Had the DSG oil and filter changed. That feeling of resistance seems to be better, still there in the lower gears but not as obvious. So maybe just needed an oil change...

 

Also had the Haldex oil changed.

 

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Is the feeling your getting just when it changes down from 3rd to 2nd and 2nd to 1st.  As I had this before the oil was changed and they reset the DSG as well..

Mines is coming up on another DSG service and I can start to feel it changing down gear to soon which gives a lot of engine braking
I have bought all the stuff to do DSG oil change myself this time and will reset DSG through VCDS

Was it the dealer or Indy that performed the work?

There is others on here that say you can reset through the pedal but look at this post and read the second last post from James..

Edited by DEL80Y
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