BMW 320i electric windows working intermittently

Fuse Box Diagram BMW

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Fuse box diagram (location and assignment of electrical fuses and relays) for BMW 3-Series E46 (316i, 318i, 318d, 320i, 320d, 323i, 325i, 328i, 330i, ...

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  Fuse Box Diagram BMW 3-Series (F30/F31/F34; 2012-2018)

  https://fuse-box.info > bmw > bmw-3-series-f30-f31-f3...
  Fuse box diagram (location and assignment of electrical fuses and relays) for BMW 3-Series (F30/F31/F34) (316i, 318i, 320i, 328i, 330i, 335i, 340i, 316d, ...

I recently had my engine replaced in my 2002 grand marquis 4.6 with a 2009 crown Vic 5.4 engine and was running fine until I broke my ignition and tried to replace it myself I bought a new ignition switch didn't work so I bought a steering column and still won't start what do I do

You most likely have to check the main power harness where the door opens. Sounds like a open wire that is not fully separated

Check the refrigerant pressure. There is a low pressure switch that will prevent the compressor from running. If the pressure is OK, check to see if the clutch engages. If it appears to engage the clutch might be worn or worse. was the compressor noisy before it stopped working. If so then the clutch bearing might be shot. but in that case the compressor would still run but be noisy when not on. If noisy when on, then it is toast.

It may be overdue for a scheduled tune-up, oil change, etc.

They may have the same high amp fuse. Try removing and reinserting the fuse. Could be a bad connection.

Try using an automotive dye in the oil the oil has to be going somewhere the dye should reveal the loose gasket or loose oil plug in which the leak may only occur at speed under pressure and not present when stopped

If all windows stopped workin at once it's a relay ... You can usually find them under your steering wheel ... You more than likely have to remove the panel under the steering wheel and you'll see them... I forgot which one it was but call a BMW dealership ... And let them know what relay you need...

try eBay or a search on www.car-part.com. the site will list local salvage yards that may have the regulator

Hello.

It sounds to me like you needed to have your coolant level senor changed. If you didn't get this changed then thats your first stop, this is a common problem.