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Just had the message, but didn't feel it actually limp. It drove just fine.
I started this 2012, 141K miles X5d, and didn't have time to warm it up. Pulled out of driveway, slowly proceeded around 20mph down the side street, got on the 45mph road, maybe 1/4 throttle, so about 2min into the drive now. The console showed "engine malfunction, power reduced".
I kept driving just fine, but the drive didn't require going over 50mph, I didn't feel any loss of power.
I had new FRM installed under warrantee at the dealer a few days back. They "reprogrammed the whole car overnight". Since then, I took it for an hour to the mountains, no problems.
I've never seen this message before. And no Check Engine popped up. Hopefully a fluke.
Careful reading your codes, FRM dies if you don't plug the car into a battery charger while reading the codes. Luckily, FRM is now warranted to 15Y 180K miles!
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