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Well I just got back from BMW. I got them to unplug the actuator controlling the flap to avoid the awful sound the broken bolt was making for the next 2 weeks until the replacement exhaust arrives. They didnt know what would happen (or if anything would actually happen) but they said I would be covered regardless.
But driving home the car sounded completely different... and for the better! Lots of pops and crackle backfires at low speed and low revs and thunderous extended burps on upshift! It sounded like I had put a whole new exhaust system on. Its brilliant!
In the long term though, I dont know how healthy it is for the car. They did say something about the flap helping to warm the engine up faster or something.
Can anybody definitively confirm that having it unplugged for a couple of weeks wont harm the car?
Cheers
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