Mini cooper coolant leak

While Mini Coopers are known to be high-quality vehicles, they have been known to experience coolant leaks. Some of the older models of MINIs are known to experience radiator and thermostat housing leaksbut the most common problem with a mini cooper coolant leak leak in a Mini Cooper is a faulty water pump.

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Mini cooper coolant leak

Thread Tools. Likes: Received Likes on Posts. Yesterday I noticed low or no heat climate control in my Cooper S. Figured it was a gremlin because I have been suspicious of the IHKA for a while, so let it be only to find the same problem this morning. Using BimmerLink I found no permanent codes and 1 IHKA error code but nothing that pointed clearly at a heating system problem as such. Under info codes, however, there was this under Motor electronics: - 20A50A: Engine cooling system: protective function for turbocharger coolant pump due to dry running active I then cleared all error and info codes well, most of them, again, I have a couple of gremlins but they are unrelated , and restarted the car. Upon restart, the 20A50A returned. I was out and about so could not take corrective action other than Googling, and quickly zeroed in on low coolant as first thing to check for. There are clear signs in specific places of recent fluid contact, and the panel also appears to have been absorbing fluid for some time. The front of the oil pan has streaks of what appears to be dried coolant. I can see maybe one such streak on the oil filter housing. But the actual source appears to be something higher that I cannot see from below. There is coolant on the plastic wire conduits covering the starter wires, so this lines up. I am unclear as to whether this unresolved internal pressure concern may be related to the coolant leak somehow, but I mention it as I seek your guidance.

In less than 30 days the level was low again.

Minis deliver an exciting driving experience and require proper maintenance to keep it reliable. After an extended period of use, your Mini tends to leak coolant from the water pump and thermostat. The failure of either one could cause your engine to overheat. Coolant leak indicates a possible cooling system malfunction , and ignoring it could cause your Mini to overheat. Discussed below are the common signs and symptoms of the cooling system failure in your Mini and the best ways to deal with it. The major culprit of a coolant leak in your Mini is usually a defective water pump or a failed thermostat housing.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I have a Mini Cooper 50k miles and noticed that coolant liquid was disappearing I can't find any obvious leaks traces when inspecting the engine bay. I also notice sometime a gurgling sound behind the dash , passenger side, when starting the car. Don't know if this is related.

Mini cooper coolant leak

Getting Started - Prepare for the repair. Set Up Paper - Position paper and mark wheels. Assess Leak - How to determine if the leaking fluid is coolant. Open the Hood - How to pop the hood and prop it open. Find Reservoir - Locate the coolant reservoir and clean it.

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Did you ever change the housing, on early production F56 S models they have issues with the housing and most fixed under warranty. If a failing thermostat is not replaced, it could cause more problems. Because it only leaked hot and with lots of pressure the hot coolant as it leaked out had its water boil away. At K miles and given the known history of this part on the B46 engine on both BMW and MINI-branded cars , is it smarter to just replace the part on general principle? Going through coolant bleeding routines has been revelatory. Given the plastic breakage I would recommend replacing this with the all-metal version to anyone else running into an issue here. Email this Page. For a better experience, please enable JavaScript in your browser before proceeding. Thread Tools Show Printable Version. Thanks for posting all of your findings. Sign up. Oh my. If any found in the oil then coolant is getting into the oil even if there is no sign of coolant under the drained oil after it has been the drain pan a bit.

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After I thought I was done with all that, I test drove a bit, came back, let the car sit, and found the reservoir below minimum again. It was one of the most expensive at the time. Thank you! Coolant leak indicates a possible cooling system malfunction , and ignoring it could cause your Mini to overheat. Oh my. If your thermostat is not functioning properly, you might hear it said that it is stuck open or it is stuck closed. At K miles and given the known history of this part on the B46 engine on both BMW and MINI-branded cars , is it smarter to just replace the part on general principle? Received 2 Likes on 1 Post. And is there good manual for this car for torque specs and some guidance. Well, I can barely see the top of the oil filter housing assembly now, courtesy of pulling the intake manifold. Explore Our Forums. A broken hose could also be the culprit. Low or insufficient coolant in the cooling system hampers the flow of coolant through the system which could result in overheating. Thank you in advance!