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This is a surprise. I believe the limp mode problems on N54 equipped 335/535 cars were mostly caused by High Pressure Fuel Pump failures, often repeated failures. I haven't heard of these type of issues with 328 (N51/N52 engine), which don't share the same HPFP unit, AFAIK. Consumer Reports even rated E90/E92 328 as the most reliable of current BMWs, FWIW.
I believe the HPFP problem is separate from the oil-cooling issue. With oil overheating, once the car's cooled down, it will drive normally again. When HPFP fails, the car stays in limp mode and does other bad things until the pump is replaced. BMWs have had a limp mode for a while now (as many other cars do), and can enter it for any number of reasons.
--Andre