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I'm having a similar problem at the moment, on Friday I had just had two tyres changed (fronts - Conti Sportcontact SSR XL) and the car suddenly developed this muffled clunk when under any moderate power... No dash lights or anything.
F36 30d auto x-drive (70,000 miles)
Upon further driving it feels like this:
- Pulsing, clunking when using any moderate power, being really gentle can help.
- Low speeds are worse, between 5-10mph at @1000rpm it's constant and feels a little like ABS does in the snow. The more power you use, the more dramatic the clunk/pulse.
- High speeds are ok, but putting power down for an overtake brings the noise and sensation to the fore.
- Cold start: you can nurse the car without any clunks or slips, but once its up to temperature it's almost impossible to avoid at low speeds
- Sport/sport+ makes it almost impossible to avoid the clunk, eco makes it less prevalent.
- Doesn't happen when coasting or up to speed with a steady foot.
- At very low speeds the resistance when letting off the acceleator causes a noticable clunk.
Anyone have any idea where to start looking and what to look for? Hoping it's not the TC, havent been under the car yet.
Thinking about taking it to a specialist if it's 'involved' but unsure of who is trustworthy (east london) and want to have a bit of a handle on it myself first...
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