Bmw B58 Low Coolant

twitter Facebook Digg Google StumbleUpon del.icio.us My Yahoo! I have a 2018 540i purchased new in May 2018. In December of 2018 at 4268 miles I got the low coolant warning.

Both reservoirs were empty as far as I could tell. I filled the main reservoir with 24oz of coolant (mixture). I was aware of the BMW SIB (service information bulletin) for air pockets.

My experience is that the cooling system for these cars with the B58 is very robust. Yes, lots of plastic. I've tracked my car in the middle of Virginia summer and the oil temp gauge (there's no coolant temp gauge) remained rock steady at about 235*F.

The small tank does not but can also leak coolant into the intercooler and get low if the intercooler is failing. All in all, once you find your issue, repair it, then do a vacuum fill and properly bleed the system. B58 losing coolant for 20k Miles Jump to Latest 3.1K views 14 replies 8 participants last post by padders Dec 15, 2023 1.

Common BMW B58 Engine Issues 1. Coolant Leaks One of the most frequently reported issues in the B58 is coolant loss. Plastic components within the cooling system - such as the thermostat housing and major hoses - are known to degrade over time, especially under high heat or in stop-start urban driving conditions.

Typical symptoms: Low coolant warning light Engine running hotter than normal. BMW B58 engines are prone to coolant leaks. Rein's aluminum connector helps eliminate failures from heat and hydrolysis.

Coolant leakage poses a significant risk, potentially leading to overheating, engine damage, or even catastrophic failure if left unaddressed. This guide explores the causes, symptoms, diagnosis, and remedies for coolant leaks in BMW's B46 and B58 engines, offering practical advice for owners and enthusiasts. 2012-2019 BMW 3 and 4-Series Forums General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Coolant for B58.

Someone posted a B58 coolant flush PDF from ISTA+ on here but didn't include the low temp system. That's what I'm after. Sent from my iPhone using Bimmerfest mobile app.