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Thought I'd give you good folk an update... I eventually found a good used diff on gumtree - was a 400 mile round trip to collect from Scotland!!! Local garage honoured their promise to fit free of charge. I paid about £300 for the diff, £80 for my mate to drive me up to collect it and £35 to the garage for oils etc. The best part of all this is my Yeti is now in perfect running order again, the droning noise has completely gone. Now though I'm not so sure that my local garage did ruin my snow monster. There are a few other long-standing problems that have miraculously resolved themselves since having the diff replaced: - 1. vibration at 1400 revs in high gear (high torque?) 2. fuel economy The vibration I had pretty much forgotten about as I had adjusted my driving style to prevent it happening. But on a slight incline in 5th, giving it some throttle caused a substantial rattle from underneath - like it's going to stall or something. Fuel economy is over 10% improved. I always reset the trip counter and fill it all the way so I know how much I'm getting from a tank. Now I easily get 450 miles every tank but prior to the diff replacement 400 was the absolute max I'd get. So I reckon the dealer in Stockport broke it when they did the Haldex service at 40K. Local garage just got unlucky and tipped it over the edge. I don't know if this is a logical conclusion to draw from my experience because I am no expert on cars. I remember the Haldex service and the Dieselgate recall thing were done at roughly the same time. I put the fuel economy down to the Dieselgate fix. The vibration from the propshaft probably started around the same time - it certainly wasn't always like that. I thought it was the exhaust loose actually. I reckon I probably owe my local garage an apology and a days labour. What do you lot reckon!?!?

Yes but the seller said I couldn't swap the Haldex without voiding the 6 month warranty. I don't understand the significance of the last letter in the diff part number, 0BR525010A/B/C/E/G whatever. e.g is this what I'm looking for: - https://www.ebay.co.uk/itm/193902391746?hash=item2d257bb1c2:g:57cAAOSwO9VgL4No The item photo shows 0BR525010 but on my car I have a 0BR525010B.

Very much struggling to find a diff that I'm 100% sure will be suitable for my car. Can someone help please? I see that the same part 0BR525010B is used on Audi TT, S3, Golf R, Superb. There are a few dead certs available but for too much money. There are also several 0BR525010 without the letter suffix, locally and easily collected. Dunno if they're any good to me though. Anybody on here know??? I now know my first procurement had a Gen 5 Haldex off a 2014 & later model, hence the incompatible connector. So I need a unit with a Gen 4 Haldex, or no Haldex at all, as I already have that on my knackered diff. I'm rather out of my depth with this really. Thinking an AA membership to cover me when it dies, get them to tow to the garage that ruined it and involve trading standards as suggested by @ejstubbs

update Got a diff from the popular auction site and guess what?!? The Haldex connector is different!!! The seller agreed to take it back and has arranged the collection for tomorrow so I'm not out of pocket. I did put in my reg and the part was listed as compatible with my model. Unfortunately the seller says they don't have a diff that will fit. Anybody have a diff for sale?

A quick update, and another question please... Took my car to another garage in town and had them check it out. Didn't really tell me a right lot I don't know from Briskodian's already, other than to confirm it was definitely the diff causing the noise and that there was no oil leak from the diff. Ruled out other sources of the noise. So I went back to my local garage to "have it out" with them, and like I said before they're very nice and genuine folk. He denied draining the diff, and I agreed I should have brought the car back as soon as I noticed the noise. Anyhow if I buy the diff he will fit it f.o.c. and go 50/50 on the cost of the oils etc. Question - are all Yeti diffs the same? Pre and post facelift? Auto / manual? I've no idea. There are plenty on eBay, like @J.R. has noted previously, starting at around £240. Also got some quotes through from PartsGateway but they're substantially dearer for what seems to be the same thing. Any advice on purchasing a diff most welcome please! The noise is getting worse, got to drive to Sheffield in the morning so I hope it doesn't die on me!!!

Yes, but we live out in the sticks so a short local journey comprises steep hills and sharp bends. If I hit 60mph it's for a brief moment before slowing down again for the next bend. The maxidot reports averages of around 25mph. I should call them arduous short local journeys from the perspective of the Yeti. From my perspective it's an awesome car especially with the winters on steel rims in the 2020/21 winter we just had. It does get a hammering. The new noise was absolutely evident on the one mile journey from the garage back to home. It would be hard to say if it has got worse since then because I don't think a gradual deterioration would be noticeable. Save to say the difference after it came back from the garage on that fateful day was like night and day. Last weekend I did about 50 miles on the A1M with three passengers and it was terribly, worryingly loud. I think if you only think it's noisier than it should be, then it ain't nowhere near as bad as my SM . You likely did dodge that bullet, and from what you've said it's increasingly evident I haven't. Because it drives perfectly fine, like I said I thought it was just because I opted for the cheapo aftermarket part. Also have a trailer myself and I shall dare not tow it now I know this is related to load. What will happen in a failure then? Is it dangerous?

Very useful, thanks... @J.R. you hit the nail on the head, "unless you asked them to service the Haldex at the same time". So I've spent the evening sifting through my "filing cabinet" and found two receipts from the local garage. First for service and MOT 26-11-2020, 69562 miles. Second for "RENEW HALDEX OIL. SUPPLY AND FIT NEW REAR PROPSHAFT COUPLING", 17-12-2020, 70054 miles. I think he recommended the Haldex service if I recall. @Trevor M Yes I feel I will come to regret not returning to the garage immediately. I just assumed the noise was because they fitted what was described as an "aftermarket propshaft balance weight" and that it was just noisy than an original part. @e-Roottoot It has averaged 10K each year from new. So hats off to the local garage for recommending the Haldex service then!?!? It's just clicked over 72K now. So it is very clear now what has gone on. I thought I might take it to a different garage for an assessment as to whether the Haldex oil has actually been changed, as that might prove they drained the rear diff by mistake. But thinking about it, when I took it back to the garage last week they had it in from 9am til 5.30pm so I suspect they may have covered their tracks. He was also insistent I had a sniff of the oil container from which they had refilled the rear diff, which is heightening my suspicions. Having said that he and the rest of the team do seem like very decent folk! Is it safe to drive then? I think I'm going email him a link to my thread on here and see what he comes back with. Thanks again for all the replies! Peter

Hello everybody! I've been the proud owner of a Yeti Adventure 63 plate from new. Never had a problem and for the first five years had it serviced at dealer with that service plan thing which they sold me. I read about the Haldex change at 40K and insisted that was done despite them not doing in the first instance. This last November the MOT was due again and I took it to local garage who passed it with an advisory that the propshaft balance weight be replaced due to worn rubber. They explained that if it were to fail it can result in an expensive repair because it is next to a wiring loom that might be severely damaged. So I had the work done, cost about £350 I think. On driving off from the garage, straight away I noticed a droning, humming sound coming from the rear. My Yeti had never made any sound like that before so it was instantly apparent. The frequency of the sound is commensurate with the speed of travel. It's far more noticeable on the run-on (as I now know it to be called). Above 60mph and it is so loud that my 5yr old in the back seat cannot understand me even if I raise my voice. Obviously I've read the forums and the posts about similar but frankly I am none-the-wiser because I'm far more a computer person than a mechanic! I haven't driven it much recently and hardly ever at high speed so wasn't too bothered until we visited grandparents over Easter. So I took it back to the garage last week and complained about the noise. He had it for a day and on collection said there was hardly any oil in the rear diff, which he replaced foc after draining, and that what came out was a metallic colour. He said the noise remained and that might cure over time with the new oil. Anyway I've done a few hundred miles, and the noise is as bad as ever. I don't know what to do. Can anybody on here offer some advice please? Peter