Hi MJZ
Shocking that you are having to do this on a 20k mile 2014 car. Did you change just the tensioner or the guides/ chain as well? I fitted type 3 as shown on your image, direct from BMW so I'm pretty certain it is the latest design. It was about 3mm longer than the one I took out. The engine does not now rattle at cold startup but still rattles when driving until the engine is warm.
The myth that these later cars have better internals needs to be well and truly discredited.
Sorry non…didn’t see this…yeah I was a little surprised and quite shocked when the car began making the death rattle…i thought as you…what the hell, it’s only done 20,000 miles and that was only a few weeks after buying it. But then you get people telling you it’s the age as well to be considered. I think it’s a serious design fault…my car is 2014, later than the earlier tension problems, where they were supposed to have had further development to fix the problem. I agree…I doubt the problem will ever be fixed, they will always fail…the trick is to keep on top of it with regular oil and filter changes. I don’t use my car that much, but I’ll be changing the oil and filter annually with 0W30. I only changed the tensioner, in the hope that I caught it well before the chain could damage any plastic. I probably only started it a half dozen times with the death rattle and it stopped within 15/20 seconds. People said I should change the chain and guides too. Even my Peugeot garage wouldn’t change the tensioner alone. Of course I couldn’t understand this…surely the chain is not at fault here, it should last longer than 20,000 miles regardless of its age. So I changed only the tensioner. That was 6 months ago and I’ve not had any death rattle and the engine is quiet from start up….unlike your own….it shouldn’t be rattling at all….you may be scrutinising it a little too closely, but if you can still hear a rattle whilst driving then I’d say it wasn’t fixed….im listening to my engine with the hood up, there’s no noise from the timing chain side but all engines make a noise, just be sure it’s not coming from the timing chain side. If a garage changed your tensioner, I would ask them to check it out. Yep, I think the problem certainly exists on all RCZs, no matter what year…