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320D Blown Turbo Help Please

bimmer247

By bimmer247,
in BMW 3 Series Forum

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bimmer247 Apprentice

bimmer247

Posted
Posted

Hi there little help please my 2000 reg e49 320d

has been diagnosed with a blown turbo but car won't start

at all is this correct sorry to sound thick but all of the petrol

turbo cars I have owned with blown turbo the car has still started

but smoked is it right for a diesel to not run at all when code

turbo gone. Cheers in advance

Guest DazH

Guest DazH

Posted
Posted

Hey

The car SHOULD start with a blown turbo but if it has blown to a point where it is no longer allowing exhaust gases to escape, it will build so much back pressure that the exhaust valves will struggle to open therefore, no start.

Also, if the turbo has blown, it might of taken something else with it that the ECU relies on to start.

These are only theories brought to my head by logic.

When you say "won't start", what exactly do you mean? Does it even turn over? is it dead? does it start then die?

Daz

Guest DazH

Guest DazH

Posted
Posted

Hmmmm

Unless this is some annoying BMW electrical system that won't allow the car to start now it has detected a problem (which I don't know about) I'm stumped. You can drive a car forever on a blown turbo if you don't mind the horrific fuel consumption, a cape like black smoke trail behind you and a top speed of 50.

I've even known people to kill the oil feed from the block to the turbo to stop the most of the nasty black smoke jsut to continue driving on a blown turbo lol but never it not starting.

I'm sorry to advise but it doesn't sound like your turbo dude. If it is your turbo, it knackering its self has taken something else out with it causing the ECU to lock down.

Your going to have to go back to basics and check for Spark, Fuel and Air to the cylinders...

Daz

Guest DazH

Guest DazH

Posted
Posted

squirt some brake cleaner up the inlet manifold, see if it fires

It could just need a good kick in the rear like Ian suggests :rolleyes: Let us know how this goes

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