X5 won't start

Bar2 · Post by **Bar2** » Sat Jul 25, 2015 9:36 pm

Hi all probs again I have a 03 x5 3.0d started it today turned it back off and tried to start it again and it wouldn't start turns over but won't start founds like fuel what do I check first

AW8 · Post by **AW8** » Sun Jul 26, 2015 3:49 am

Could be a number of things....

Fuel pump, fuel filter, starter motor, glow plug control unit , random electrical issue or even faulty immobiliser are possibles, as could be something simple like a flat battery.

Would likely cost hundreds to eliminate by swapping components.

Ideally get it taken to an independent specialist if you don't have spare parts to swap out and eliminate with.

Try jump starting first.

A basic current or circuit tester will let you know if any fuses blown as will swapping out relevant fuses ... If so kg the later do make sure fuse loading is correct/ample for the circuit concerned.

A half decent and compatible diagnostic reader may assist in pointing towards the issue but be honest with yourself as to what you will do with the device provided info.....assuming you interpret info of potential use.

May seem obvious but auto equipped cars only start in P or N !

X5Sport · Post by **X5Sport** » Sun Jul 26, 2015 10:55 am

A cheap fix worth a try is the fuel pump relay. £10 component located above the front glovebox. If it fails the engine will crank away but there is no fuel so it won't fire! Ours did this a few years ago.

The fix notes are on the forum somewhere. Basically drop the front fuse box out and on top of it are a set of relays. The one you want is No1 on this diagram..

http://www.realoem.com/bmw/enUS/showpar ... Id=61_1363

It's a fairly common failure as the contacts burn out. DIY job if you feel like it

if that doesn't solve it then you can work into the more expensive options.....

Bar2 · Post by **Bar2** » Sun Jul 26, 2015 2:56 pm

Hi thanks for the replying I will try the fuel pump relay later today is there another I can swap with it to see if that is the problem

X5Sport · Post by **X5Sport** » Sun Jul 26, 2015 8:10 pm

Not that I know of that is in the car.

Bar2 · Post by **Bar2** » Sun Jul 26, 2015 9:02 pm

Ok cheers I will try the main dealer tomorrow to see if they have one in stock

Steamyrotter · Post by **Steamyrotter** » Tue Jul 28, 2015 9:09 pm

Is it OK when cold???

If so I'd look at injectors...

(Seems to be my current answer for everything lately!!!!!)

(Still beats gearboxes!!)

Bar2 · Post by **Bar2** » Thu Jul 30, 2015 10:48 pm

I put a fuel pump really on it and it made on difference so i got it taken over to argyle diesel they did some tests and they put a new fuel pump on it and it's running good again

X5Sport · Post by **X5Sport** » Fri Jul 31, 2015 9:53 am

Glad it's fixed. Relay worth a punt given the cost, and at least you know both it and the pump are now good ones

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