wasn't there a lot of uproar also from the BMW community over the lack of sufficient oil cooling for the 135/335/N54 powered vehicles?
From memory, BMW eventually caved and an additional oil cooler was retrofitted. The engine has an oil to water heat exchanger as standard in the oil filter housing. Retrofits had an extra oil to air cooler mounted in the fender with a louvre near the front of the tyre. Retrofitted models also have two large-ish oil hoses running across the engine from the filter housing to the fender.
|