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      11-20-2021, 07:05 AM   #1
Chaos236
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While hes in there, oil filter housing leal

oil filter housing leak getting repaired. Should I do a water pump while its torn apart? Only paying for the pump at that point. Alternator? Belts?
17 640i GC 54,000 miles
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      11-20-2021, 09:26 AM   #2
Opie55
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I definitely would not replace the alternator at those miles. Idler pulley and belt(s) make more sense as preventative maintenance items. If it is truly just the parts cost then a pump and thermostat would be ok if not too pricey. Kind of depends on how long you plan on keeping the car, and how common a failure point those parts are on that engine.
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      11-20-2021, 10:40 AM   #3
Derekz4
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The belt, 100% yes. Oil leaks will kill a belt and the potential of a broken belt to get sucked into the N55 motor via crank seal is there.
The rest I wouldn’t touch unless there is some pulley noise which any good mechanic can diagnose.

Last edited by Derekz4; 11-20-2021 at 03:26 PM..
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      12-06-2021, 06:38 PM   #4
Chaos236
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Indy said its not:
Oil filter housing
Oil pan
Valve cover
Drain plug
So..?
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      12-06-2021, 10:04 PM   #5
arucano
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2014 BMW M6 GC  [0.00]
Suggest you get some dye and a black light. Wash the engine with a good de-greaser, pour the dye in the engine and run the engine in a low light area and look for the source with the black light. With oil all over the area, it is hard to be sure where it is coming from.
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      12-29-2021, 03:29 PM   #6
Chaos236
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      12-29-2021, 06:21 PM   #7
2FNQUIK
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Good info! Thanks for sharingwhere was the leak?
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      12-30-2021, 08:29 AM   #8
Chaos236
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Oil filter housing…
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