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+---- Thread: 2011 E92 335i N55 DCT Overheating (/showthread.php?tid=28274)
2011 E92 335i N55 DCT Overheating - redliner - 29-09-2017
Put my brother's 335 on ista D
Got 2 faults of interest...
Water Pump over speed.
Water Pump shut down due to blockage.
Replaced thermostat.
Bleed program runs as it should, except that the radiator fan starts up during the bleed process. Something my 2011 E93 335 N55 DCT does not do.
Anyways, the problem persists.
Any ideas?
Can the water pump fail partially? I mean the water pump runs, and definitely does bleed the system. So it's not 'broken'. Can it be partially broken?
Same with the coolant temp sensor. Can it give correct readings sometimes, and sometimes not? I checked the coolant temp at idle and it crept up with oil temp from cold.
Any idea where I can look? Or is there any test I can do with Ista to help narrow down the problem?
RE: 2011 E92 335i N55 DCT Overheating - bryosb - 29-09-2017
Pump no good, replace it
RE: 2011 E92 335i N55 DCT Overheating - redliner - 29-09-2017
(29-09-2017, 13:58 PM)bryosb Wrote: Pump no good, replace it
Any test we can do to confirm?
RE: 2011 E92 335i N55 DCT Overheating - inspi1981 - 29-09-2017
100% water pump
Nothing to test
RE: 2011 E92 335i N55 DCT Overheating - bawareca - 30-09-2017
These pumps are a huge problem, and more than 1 car has caught fire because of the faulty water pump.