BMW 8 Multiple System Failures, Clutch Switch Suspect?

Hey there! I have some experience with BMWs as I own a 2016 BMW 6 Series (previously had a 5 Series too). Your symptoms sound very familiar to what I dealt with last year. My car showed similar issues, multiple electrical gremlins, especially with the starting system and gear display. Turned out the clutch pedal sensor wiring had some damaged connections. The workshop found that moisture had gotten into the connector, causing intermittent failures. The fix wasn't too complex, they replaced the wiring harness and connector for the clutch pedal sensor. Cost me 95 Euro and it solved all those unusual issues. Could you share more details about when these problems started and if they happen more often in specific conditions (like wet weather)? This might help pinpoint if you're dealing with the same issue.

Thanks for sharing your experience with the wiring harness issue! My BMW (107649 KM) started acting up about two weeks ago, and yes, I've noticed it gets worse during damp weather. Had my latest service just 3 months ago and everything was fine until recently. The error messages are more frequent in the morning when there's dew. Really appreciate the tip about the connector moisture, that would explain why the problems seem related to wet conditions. I'll definitely have the mechanic check the wiring harness and sensor connections first before replacing the entire clutch pedal switch. Seems like a more cost-effective approach to start with. Did you notice any warning signs before your issues became more serious?

Hey again! Yeah, looking at your description of the morning/dew problems, it's even more similar to what I experienced with my BMW. Before the issues became really obvious, I did notice some small warning signs that I initially ignored, like occasionally the gear display would flicker for a split second, especially on cold mornings. In my case, I first noticed minor inconsistencies with the clutch pedal response about a month before everything went haywire. Sometimes the start button would work without pressing the clutch, but it was so unusual I thought I was imagining things. Then gradually it got worse until all those systems started acting up together. The moisture sensitivity you're describing is exactly what happened to me. The dew effect is a classic sign of electrical connection issues. When my mechanic opened up the area around the clutch pedal, you could actually see slight corrosion on the connector pins. Quick tip from my experience, while you're waiting to get it fixed, try parking in a covered area if possible. It won't solve the problem, but it might reduce the frequency of those morning issues. Also, make sure to mention the moisture correlation to your mechanic, it'll help them diagnose it faster than I did. I wasted time initially because I didn't connect the wet weather pattern.

Thanks so much for those additional details, especially about the early warning signs! Come to think of it, I did notice that flickering gear display a few times but didn't think much of it at the time. Really helpful to know about the corrosion on the connector pins too. I'll definitely take your advice about covered parking, luckily I can use my garage for now. I've already called my mechanic and booked an appointment for next week, making sure to mention all these symptoms and their connection to moisture. You've probably saved me both time and money by sharing your experience. The wiring harness replacement sounds much more reasonable than replacing the entire clutch system, which is what I was worried about initially. Really appreciate you taking the time to share your experience in such detail. I'll let you know how it goes after the mechanic checks it out!