![]() ![]() If you start to exercise the engine, the ecu drops the oil temp to about 210 (which is where most modern engines with syn oil run today) to increase the lube cushion under heavier load/rpms. The oil is thinner at that temp and fuel economy increases, but the oil still does a good job of lubricating under the light load conditions. At relatively light loads and relatively low rpms, the ecu lets the temp get up to 240/250. At those temps the ecu controls the amount of oil flow from the oil pump through the oil cooler, depending on the load being placed on the engine. ![]() "On the f30 N55, I think you can say the normal op temp is between 210 F (about 10 o'clock on the gauge) and 250 F. Checked and couldn't even see the float and proceeded to add 3+ cups of coolant/water mix. I drove home from dealership (5 miles) and when I went to start it the next day the coolant light came on. The car was just repaired days ago for leaking coolant. If you start to exercise the engine, the ecu drops the oil temp to about 210 (which is where most modern engines with syn oil run today) to increase the lube cushion under heavier load/rpms. smolck 2 cruztopless said: I'm losing coolant but don't see any leaks. Stolen from another thread about the N55: I've never looked religiously at my temps, but it seems you are running around 225F, with a 115F IAT temp which seems normal. The only time you need a vacuum fill is when you drain the coolant system, and there is air pockets in the lines/cores/block. There should be no issues adding coolant like that. Dealer also said it's a known issue on B58 2016 production." According to the mechanics, turbo was leaking coolant water, but only internally, that's why no water leakage under the car. The dealer installed tamper proof seals under coolant reservoir caps and asked me to return if low coolant warning appears.īayern68 based in France reported that "turboloader changed yesterday on warranty after low coolant message at 12k miles. My local BMW dealer contacted field engineer to follow up on the reported issue (see below) that slow coolant leak was addressed by replacing the turbocharger. I escalated to BMW NA requesting turbocharger be inspected before the warranty expires in September. Again, cold and hot pressure test revealed no leaks. The vehicle was brought to the dealer in early July 2020. Cold and hot pressure test revealed no leaks.Ĭoolant loss (albeit slow) continued. The dealer replaced the main tank reservoir cap (a known issue) after finding dry white residue under the cap. Started losing coolant in September 2019. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |