Gearbox problems and grinding noises in Citroen C6 from 2007: Exchange of experience and workshop advice

Hi, you have described exactly the symptoms I had with my 2010 Citroen C4. It was actually this transmission control unit that was defective. The device controls how and when the car shifts gears. That's why your gearbox has these problems. Otherwise it could have been really damaged. I had to take mine to the garage and have the unit replaced. Don't worry, it wasn't a big deal, but still nothing to ignore. But don't take it lightly and check with your mechanic. Hope this helps you. All the best!

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Hey, thanks for sharing your experience - really reassuring to know I'm not alone. Could I ask how much the repair cost you and whether any other problems have arisen since then? Thanks for your feedback!

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Sure, you're welcome! Well, I paid €1000 for the repair of the gearbox control unit. That sounds like a lot of money at first, but since then it's been really quiet. Since the mechanic got the thing under control, the gearbox has been running like clockwork again. So, apart from all the stress beforehand, the investment was definitely worth it. After all, it keeps the car running. I would definitely get it checked before it gets even more expensive. Good luck, buddy!

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Great, thank you very much for your advice! That really helps me. 1000 € is not a lot, but if it solves the problem and there are no further problems, I think it's worth it. I will definitely have it checked by my mechanic and hopefully everything will run smoothly after that. Thanks again for your help!

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