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Bmw 728i starting problems

I have an e38 728I and it is VERY reluctant to start, at start up it coughs and splutters then finally bursts into life, it is then fine but this problem has only just started? im wondering if it has picked up some dirt from the tank? Help?

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  • 82 Answers

I'd try some "Seafoam" additive to bind with water you may have in your system. If that doesn't work, I'd look into the fuel pump and/or filter by having the pressure tested.

Posted on May 07, 2014

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 2006 sprinter 2500 trouble starting

placed vehicle on top of mountain,, pushed it off cliff, cause no one could find a solution.....

Posted on Dec 16, 2008

  • 1 Answer

SOURCE: starting in damp weather 1993 240 wagon, auto/od, 235k miles

perhaps you need a new cap and roter a new spark plug wire set. they don;t like moisture. also check to see if you have any broken or leaking vacuum hoses. the worse case senerio would be that your head gasket is leaking--at cold temps a little antifreeze will enter until everything warms up and it seals shut due to metal expanding. but since you say it's cold weather only--this probably wou;dn't be the case. good luck.

Posted on Dec 28, 2008

Ray190te
  • 61 Answers

SOURCE: daewoo cielo 1997 spluttering @ startup

Try to reset the IAC valve on the throttle body it has 4 wires t it .
procedure is as follows

turn ignition key on (don't start the engine), unplug the IAC valve, turn the key off, replug the IAC .Do this 3-4 times .Then start the engine while holding the pedal down at about 2000 rpm then let the rpm down slowly till idle. Sometimes the throttle requires cleaning then redo the reset.

Posted on Jan 19, 2009

  • 76 Answers

SOURCE: glow plug light flashes on97 tdi sharan

on some diesel engines the glow plugs will cycle after the engine is started. it does sound like your glow plugs are not all working that would cause the hard start and excessive smoke when it does start.

Posted on Feb 08, 2009

  • 140 Answers

SOURCE: 93 BMW 325i wont start after a few days

WHAT HAS HAPPENED IS YOU GOT WATER IND THE DIS. CAP.. TAKE THE CAP OFF SPRAY THE WATER OUT WITH AIR..GOOD LUCK KEITH..

Posted on Mar 12, 2009

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Just some info could be filter or fuel pump. copy and paste to google search. diesel which is takes some time to crank.
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When the car is stationary. Push down on the back (Boot or TRunk) as hard as you can a few times & listen for the squeek. It's more common in the rear suspension from my experience. It sounds like the bushings are gone or worn at the top of the suspension struts.
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try replacing your fuel filter, or unblocking the vents on your fuel tank, had this problem with mine and this fixed it

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