Quote:
Originally Posted by NY-F10
Hey guys. I have a 2014 BWM M5 that I daily. Finally hit 88,000 miles and car has been amazing. Before I say anything I wanna state this.
Yes - I have a solid diff mount, it's made by German Autowerks with the delrin bushing.
Anyways, today I did a pull from a stop light and hooked pretty good and then heard a clunk and let off my gas. I pulled into the parking lot of the bank I was going to and turned off my car and looked under to see if any obvious damage. There wasn't. Anyways went in did my business and came back out and started my car and it drove perfectly fine after. Didn't romp it all just drove normal. Then I tapped the brakes to go on a highway entrance ramp and heard the clunk while turning. Drove rest of the way normal. Came to my exit and came to the red light. All was fine and tapped the gas again when it turned green, keep in mind I'm being soft now and not romping because I'm worried.. and I hear clunk. Drives normal and shifts normally. Come to my neighborhood and hear the clunk when I brake again- so no throttle at all. Then preceded through the stop sign and into my driveway with no issues. Any help here? Could it be mounts?
I checked the skid plate in the rear by the exhaust and all bolts are tight. Felt my axles from under the car (should do this on a lift) and there was no play at all. Im stumped. I have a friend with the same issue for the last 15k miles for him and he told me to ignore it and said probably was the transmission mounts. I just wanna make sure I don't destroy anything and wanna catch it before something expensive happens.
Should also mention. I am on stage 1 dinatronics which gives indicator to power level and possible wear on car from tune.
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Sounds like your diff, especially if it clunked while you're turning
Or possibly your axles?