Edguzia

Thanks, probably will start from CV joints. Further experiencing the problem, so yes locking, rattling sound gets harder the more you turn the wheels. Of course with condition you push gas pedal. If you just let it roll in drive, no sounds. No sounds also when you do tight corner with accelerating. No sounds. Only from the stationary position. But i guess I am lucky that I am not in Norway, because used differential costs like 300 ( if i need to change ) and both CV joints could be replaced for additional 300, so maybe not as bas as in your place. Thank you very much!

@rbhelle I see that my haldex journey id far from over 🙌 Pardon my mechanic knowledge, what are cc joints?

@J.R. That could be a language barrier It would be differential, yes. Maybe you have any thoughts on my last update?

@rbhelle Thanks for thorough explanation. I did more thinking and experimenting so situation is as it follows: Today i intentionally recreated those situations, and made sure that this rattling sounds appear when wheels are almost turnt left or right and you accelerate. When you start going straight, no sounds. So what is the connection between turnt front wheels and rear axle? Which exact place could be rattling? P.S While the haldex was broken, i had only FWD, and there was not any sounds from the back. They appeared only when Haldex was back online. Any thoughts?

Yeah, my bad Help help help. Maybe it happened to someone. Superb 2014 4x4 haldex system failed - the rear axle started rotating with loud noises and jamming while parking. It happened twice and the system stopped working. After taking it to be checked, the haldex compass was rotten and burnt. The compass was restored, a new pump was replaced. The service was done, the filters were changed. The system works as intended. However, from time to time I notice a "rattling" in the rear reducer but only for a short period of time, like 2s. accelerating quickly. A weaker vibration repeats when switching gears 5 and 6, again briefly as soon as the revs rise to 2k. Has anyone experienced this? Any ideas on where to start checking? Won't there be loose cogs or something after finding the problem?

Help help help. Maybe it happened to someone. Superb 2014 4x4 haldex system failed - the rear axle started rotating with loud noises and jamming while parking. It happened twice and the system stopped working. After taking it to be checked, the haldex compass was rotten and burnt. The compass was restored, a new pump was replaced. The service was done, the filters were changed. The system works as intended. However, from time to time I notice a "rattling" in the rear reducer but only for a short period of time, like 2s. accelerating quickly. A weaker vibration repeats when switching gears 5 and 6, again briefly as soon as the revs rise to 2k. Has anyone experienced this? Any ideas on where to start checking? Won't there be loose cogs or something after finding the problem?