I drove my car back from work and then parked it in my garage and the next thing i know it wont start- at first i thought it can be the low fuel (since the fuel line below yellow - had 10 miles left still), i went ahead got additional fuel init but it wont start still - then i thought it would be fuel pump given i have driven the car in the past will low gas so i got my fuel pump and spark plug changed...the car starts and works fine as long as it is running but when i park it overnight and try to start in the morning - it doesnt start- the lights are on but the engine doesnt start....Can this be a alternator / starter issue?
If u hear the engine cranking in the AM, the batt & alt sound good. If you don't get any engine cranking in the am you may have an electrical short draining the battery. Before u convict the starter u must make sure the battery has full power in the AM. (12V) & 12 V to the starter
SOURCE: 1990 325i Convertible- not starting
There is probably a fuel relay somewhere in that circuit to, that may be faulty. Check your front drivers side inner fender by shock tower for 3 relays. It should be the middle one.
SOURCE: 1994 BMW 530i replaced the fuel pump the car will not start
i have the same problem right now. the relay is located under the big black box on passenger side of engine compartment. There are three relays in there. orange, blue and white. I dont know which is associated with the fuel pump though.
SOURCE: bmw 325tds diesel flowing back to tank when parked
usual problem ,valves in injector worn for the fuel pump.easy quick fix this one ,fit a non return valve in the inlet pipe,check flow direction on valve when fitting and evan better as well is another in the bleed off return pipe .valves available from a motor factor or a specialist garage like bosch or lucas ,cut pipe and fit the valve with a piece of rubber pipe to connect the valve in line.or listen to the people who want to milk the golden cow and have the whole injector pump overhauled .
SOURCE: 2002 BMW 325xi, doesn't start after oil change
It sounds like just a coincidence. I dont know what a GRR noise is supposed to mean. It either Cranks, No Crank, or it Cranks but does not Run. Just tow it to a qualified shop and find out what the problem is.
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