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2004 Volkswagen Passat Questions

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Recently I lost power when I drove over a small bump and then had to pull over as the computer system was freaking out and car wouldn't start without a jump and wouldn't stay running and after jumping it flashed "ALTERNATOR WORKSHOP!". First thought was that the alternator could be bad, had battery tested, it was no good replaced that, took out alternator tested it 3xs and passed each time. Put the car back together and car worked. Fast forward 2-3 weeks and it runs out of coolant again (just bought the car in September 2014), and the car does the same thing and flashes "ALTERNATOR WORKSHOP!" To make matters worse, the oil was checked and it appears to be burned up. The oil was checked 2-3 weeks ago and was fine (no burning oil smell). Also, heat isn't working properly, could be non-related.
Please help!

Was about to replace timing belt due to car now having 106k total miles. Water pump was replaced in August 2012. 40-50k since then.

I replaced my fan in my 2004 passat because the ac was not working 2 days later my alternator goes. Is there any relationship between the two?

Replaced the fan for ac and 2 days later the alternator light is on the car will need a tow to get serviced

I bought the car at 116,000 miles and at 122,000 it had ignition failure. I retrieved a P0321 code. I have charged the battery to 20.7 volts. Then replaced the Crankshaft sensor and the spark plugs, but it still won't start. The spark plugs are not firing. Tested the spark plugs outside of the combustion housing and there was no spark. I also checked the wiring amperage on the Coil wires and they were at 00.002. I would appreciate the help.

Both bulbs are fine

I've only checked the fluid level. I've been told to replace a few things but I don't want to play Russian roulette with parts and spend a crap ton of money. Just recently had a baby and money is tight. Please help!!!

My car seems to run "cool", only heats up to 190 when stopped. Blows warm air but never hot. Brought the car to mechanic and they said it's the water pump. It would be a $1300 fix. Does that sound right? Would my car be over heating if that we're the case?

my car is almost like sputtering when i speed up. i have no clue whats going on with it. it acts almost as if it could possibly be a fuel filter but the blinking check engine light caught my eye. any answers??

mechanic said it needs a new water pump and that we should do a lot of other things at the same time. the engine now leaks oil from the front end. is this a common problem and what should it cost?

The car overheated out of the blue but when I turned on the heater, the temperature came down.

My son said to remove neg battery wire to reset computer... could be water temp sensor/air in coolant. Light went out. 2 weeks later came on again. Repeated same, light out operation normal. Also since water pump/timing belt was replaced the coolant temp has been running lower by 10-20 degrees.