Hi We went to Spain for the winter just gone and while driving along started to hear a rumbling kind of noise from the wheel area.Sometimes was more noticeable than others & sometimes depended on the speed or surface of the road.I started thinkin it could be a wheel weight fell off or even a wheel bearing starting to rumble,anyway it never got any worse all the time we were away.When we got home to the uk we got it checked out at the garage that does our servicing & Mots.The technician took the car out for a drive around and put it on the ramp and checked it all out as he had heard the same rumbling sound.He checked everything ya can think of and the only fault he found was that the tyres were out of shape!!.He explained that out of shape meant that the rubber the tyre walls were made of had over the time become distorted.I asked him to show me what he meant so we looked at the inside tyre walls an sure enough they did seem to have a very slight bulge to them.If you run your fingers under the wheel arches and around the tyre walls i could just feel the bulge and yet the outside walls were good.He said that he has heard of this before but not up untill then come across it and although the tyre is safe the cheaper tyre can sometimes be less strong in the tyre wall area.He said that he had remebered reading an article from Vauxhall/Opel & Ford that on both the Vectras & Mondeos the manufacturers recommended a particular tyre brand.My tyre are coming up to 2yrs old now & i will be changing them all very soon and so will spend that little bit more on a good tyre,not that this set were particularly cheap but they were made in eastern europe and they didnt seem too bad a price at the time.I guess ya get what ya pay for.Our car is a vectra 2.2tdi and i know yours is a Mondeo its just that the Mot tech did say it was a thing with both makes.So maybe ya can get the tyre walls checked over.Hope this helps,Regards Kev.
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