Trafic transmission grinding noise

The symptoms you're describing do sound concerning. I recall encountering similar issues with a 2012 Volvo V60 I owned previously. Before jumping to conclusions about the torque converter, have you checked the transmission fluid level and condition? Low or contaminated fluid can often mimic the symptoms of a failing lock-up clutch. Also, what specific error code is the reader giving you?

Thanks for the quick reply! Good point about the fluid – I did check it, and it seemed okay, but maybe I wasn't thorough enough. The code reader spat out something about 'torque converter clutch circuit performance' – I can't remember the exact code number at the moment. Could a fluid issue really cause that specific error code, or am I doomed to a major repair?

While fluid issues can sometimes trigger a range of generic transmission codes, the 'torque converter clutch circuit performance' error, combined with the symptoms you described, does strongly suggest a problem with the torque converter lock-up clutch itself. Given the potential complexity and the specific error code, I recommend consulting a reputable workshop with expertise in automatic transmissions for a thorough diagnosis and repair estimate.

Okay, that's what I was afraid of, but thanks for confirming my suspicions. I'll take it to a trusted mechanic and brace myself for the bill, sounds like some transmission repairs are in order. I greatly appreciate the advice! It turns out it was the automatic transmission converter, needed a full replacement. Cost me about 2120€, ouch!