Benh

Unfortunately not, in the end I soundproofed outside under the wheel arches behind the plastic guards, under the floor protectors, behind the exhaust guards down the center, then did exactly the same on the inside, made a huge difference to the whine but also reduced the tyre noise a lot!

Definitely get an independent inspection! Haldex units are extremely reliable IF serviced regularly (even more regularly than stated!) I'd not be surprised if a young apprentice did the haldex and drained and filled the wrong one, it's very easy to do! The haldex is hydraulic oil and is NOT a lubricant as such, but the diff oil IS a lubricant, if he's drained the diff and put haldex oil in that it would definitely cause it to blow in a very short time! Normally if the Haldex fails for any reason it just won't work, diffs however will overheat, sieze then blow.

My thoughts exactly! If it's quieter I won't get so peeved off with it! I've just received 36 10mm foam insulation sheats and a roll of 100mm polyester insulation, I'll be stripping the rear interior out and tackling it next week! Fingers crossed it'll do some good!

Thanks for your replies. I changed the Haldex fluid when I bought it at 32k after my last yeti's failed at 76k, I bought it at 50k and it turned out it hadn't been done by the main dealer in Dublin at 40k! it was screwed! It was definitely the Haldex I changed and not the diff, yesterday I did the Haldex again and the rear Diff, both drained almost 1ltr each, diff was crystal clear and Haldex wasn't much worse, absolutely no difference to the noise though. Today we went to Clumber park so I got the wife to drive while I sat in the rear and my god is it noisy back there! sticking my head in the boot it's definitely the rear, I think I'll get a load of sound proofing and do what I had to do in my old one, it definitely reduced the noise one hell of a lot. As for the big expensive round thing it does actually have some cracking in it but only slight, definitely worth keeping my eye on!

Hello there, I’ve ever been on a forum before so please bear with me. I really need some help before I go to the dealer. I have a 2014 Skoda Yeti 2.0D 140 DSG 4x4 approx 45k miles. The problem I’ve had since buying it 1 year ago with 32k miles is a hollow sort of humming/howling (can't think of better words to describe it) from the rear when cruising at speeds above 55-60mph in any gear that gets louder the faster I go, however If I apply power it instantly stops, cruise or remove power and its very noticeable, I can literally play it like an instrument using the throttle. I’ve had the wheel bearings checked and they are OK, Cornering makes no difference to the noise. The Haldex oil and filter got changed 6 months ago, it made no difference at all. Its been 4 wheel aligned and had 4 new tyres, again no difference. Im just wondering if anybody else has had this before? The most annoying thing is that my old 2010 Yeti had exactly the same issue that even Skoda could not solve. Im an ex mechanic but with only five years experience before falling ill (poor memory is just a small part of it) but for the life of me I can't work this one out. I've thought of Prop bearing and Diff but at that milage? Any ideas/help would be very much appreciated Many thanks in advance