I took my 1.2 DSG SEL on the motorway today and noticed that when braking from above 60mph there was a mild vibration and low frequency rumble. A bit like going over tight rumble strips or a poor road surface. Car is brand new and has only got a round 80 miles or so on the clock. Is it just the brakes bedding in? The vibration and sound is not evident below 45 mph. Any thoughts?

Enjoy your New Car, but you had 'Best read the Owners Manual.'

 

Your car needs Run In or as Skoda call it 'Driven In',  

Tyres are new, suspension, bushes, Drivetrain, Brakes tight & prone to heating until 'Driven In'.

eg,

They get some wear and light use as the whole car does.

 

?

Have you checked and set the Tyre Pressures, and the TPMS to suit,

& Check the wheel Nut / Bolts tightness,  do not trust to the person that did the PDI, they maybe did not do it properly or safely.

Thanks. I was braking gently but obviously it takes more pressure than from lower speeds. I do not think the wheels are loose or that would be evident when driving and not just braking. At Lowe speeds everything us fine.

They certainly should not be loose.

But then they might be too tight, and when or if you need to change a wheel you might not be able.

So as well to check 20 bolts can be released at the road side.

Like wise with the tyre pressures, check the 4 and the spare, then that gives an idea if all was done right at the PDI.

Even look at the Springs, because it has been know for the Transportation Blocks to still be on having been forgotten at the PDI.

 

It is just good to 'Run in' a new car, get the newness off the tyres, and let the brakes getv the coating off new dics and pads.

 

have fun with it.

george

I have another motorway run today so will see if it has improved at all. I do not think it is loose wheels or anything left in it. I suspect it may just be bedding in or perhaps a slightly warped disc. I will see how it goes and then take it back to the dealers. I do not expect to be scrabbling around getting my hands dirty on a brand new car.

I think that the suggestion was not for you to "scrabble about" but to check things that any competent driver should be able to check, and if possible "some more".  The first thing that I did after driving wife's new Polo back home was to check all the under bonnet stuff, then check the tyre pressures, and as I'm a DIYer I checked the fixing torque on all the wheel bolts.  After that I went on to find what parts VW did not seem to consider necessary to fit when assembling the car - ordered them in and fitted them!

 

As it sounds like you do not do many checks on your cars, you are correct in getting it back to the supplying dealer ASAP.

None taken, Rum4mo. In any event the problem has been resolved. Gave it another run today and still not right. I checked all the wheels were still on the car and thankfully they were. I then did a close inspection of the discs. Both front discs were badly scored. I called up and was told the earliest they could book it in was 16/10/2015 and I could have a replacement vehicle but would have to pay £17.50 per day CDW. I politely advised this would not be the case and he went away and came back to advise that the CDW fee would be waived. He said I could call Skoda Assist to check it was safe. Guy turned up very promptly and hidden away behind the leg of the alloys was a patch of serious pitting. He offered to take it to the dealer or go and get the parts and repair it then and there. Opted for second option and all done and dusted. He thought it was as a result of the car being left out and the discs corroding. He was surprised it got passed the pre delivery inspection.

Alls well that ends well. Despite the assertion that I may not have the skills of a competent driver if I spend nearly £16,000 on a product of any description I do not expect to have to be carrying out an In depth post pdi. As my wife points out if it had been sold to her or an old lady she would have never spotted it and probably never noticed the fault. Strangely I carried out an anti fraud project on the time it takes for discs to rust if the vehicle is in the open. It is not very long!!

Full marks must go to the Skoda assistance operator. Prompt, courteous and efficient.

I have had the same noises too from my Fabia when you braked it made a rumbling noise and vibrated like the brake discs needed machining, it has done this constantly since I bought it and I have now put 5000 km on the clock and it seems to have stopped. I would say it's part of running it in.