Swirl Flaps or Turbo?
Discussion
I have just purchased a 53 plate (registered Dec 2003) 320d Sport. The car has full history and currently has 97k on the clock. I have a couple of questions:
1.) Are the Turbo failures more common in pre July 2003 cars?
2.) What is likely to cause more problems if they fail - Turbo or Swirl Flaps?
3.) Has anybody upgraded the Manifold for the later one, that I have only read about, has the better flap fitted?
4.) Is the Cambelt a chain version or normal belt, if its a belt I guess it'll need changing?
I'm getting the car serviced, even though its not due for 12k, and the once over by a garage I've used for years (not a BM specialist) on Friday to ensure everything is OK and just for piece of mind...anything in particular I need to ask them to change apart from the Turbo Breather?
Also getting them to check front wishbones and ball joints.
Thanks in advance
1.) Are the Turbo failures more common in pre July 2003 cars?
2.) What is likely to cause more problems if they fail - Turbo or Swirl Flaps?
3.) Has anybody upgraded the Manifold for the later one, that I have only read about, has the better flap fitted?
4.) Is the Cambelt a chain version or normal belt, if its a belt I guess it'll need changing?
I'm getting the car serviced, even though its not due for 12k, and the once over by a garage I've used for years (not a BM specialist) on Friday to ensure everything is OK and just for piece of mind...anything in particular I need to ask them to change apart from the Turbo Breather?
Also getting them to check front wishbones and ball joints.
Thanks in advance
[quote=BlueNGT]I have just purchased a 53 plate (registered Dec 2003) 320d Sport. The car has full history and currently has 97k on the clock. I have a couple of questions:
1.) Are the Turbo failures more common in pre July 2003 cars?
2.) What is likely to cause more problems if they fail - Turbo or Swirl Flaps?
3.) Has anybody upgraded the Manifold for the later one, that I have only read about, has the better flap fitted?
4.) Is the Cambelt a chain version or normal belt, if its a belt I guess it'll need changing?
I'm getting the car serviced, even though its not due for 12k, and the once over by a garage I've used for years (not a BM specialist) on Friday to ensure everything is OK and just for piece of mind...anything in particular I need to ask them to change apart from the Turbo Breather?
Also getting them to check front wishbones and ball joints.
Thanks in advance
1,Turbo failures are more comon upto EU4 where they changed to electronic turbo, but the turbo's dont fail as often as people think. When its in for service get them to remove the turbo air intake pipe and check the free play in the turbo impeler spiddle(just lift up and down with fingers) there should be about 1mm lateral play and about 0.5mm axial play (pull and push spindle).
They may find some oil sat in front of the spindle and in the pipe...this is a sign that the crank case breather filter on top of the engine requires relacment(interval for these is 60k)
2,Depending on the scale of a turbo failure the normal costs result in a turbo,intercooler,inlet manifold,cat and exhaust system.....on very very rare occasions and this is extremly rare the engine fails, this is because huge amounts of oil go into the inlet track and into the engine...the oil ignites and the engine revs to destruction.....once this process starts it cant be stopped ignition on or off.
If a swirl flap fails it always ends up being an engine replacement...never heard of one not being so. Heavy damage to piston,head and bore.
3,There are 2 options here and that is to fit the later modified manifold which is a direct replacement or to remove the swirl flaps from the manifold all together. The new manifold has thicker spiddles holding the butterflys in.
4,The engine is Duplex chain driven which has a liftime span.
Check the metal brake pipes at the rear for corrosion and treat them before they become an mot fail(follow the metal pipe from the flexi hose up towards the fuel tank)
Check rear trailing arm bushes
Check handbrake shoes
Check front wishbone joints and bushes
Check the turbo actuator vacuum pipe that runs from turbo to valve to accumulator then up over the engine and under the manifold(under engine cover)they perish and collapse...big cause of loss of power in the upper rev range.
1.) Are the Turbo failures more common in pre July 2003 cars?
2.) What is likely to cause more problems if they fail - Turbo or Swirl Flaps?
3.) Has anybody upgraded the Manifold for the later one, that I have only read about, has the better flap fitted?
4.) Is the Cambelt a chain version or normal belt, if its a belt I guess it'll need changing?
I'm getting the car serviced, even though its not due for 12k, and the once over by a garage I've used for years (not a BM specialist) on Friday to ensure everything is OK and just for piece of mind...anything in particular I need to ask them to change apart from the Turbo Breather?
Also getting them to check front wishbones and ball joints.
Thanks in advance
1,Turbo failures are more comon upto EU4 where they changed to electronic turbo, but the turbo's dont fail as often as people think. When its in for service get them to remove the turbo air intake pipe and check the free play in the turbo impeler spiddle(just lift up and down with fingers) there should be about 1mm lateral play and about 0.5mm axial play (pull and push spindle).
They may find some oil sat in front of the spindle and in the pipe...this is a sign that the crank case breather filter on top of the engine requires relacment(interval for these is 60k)
2,Depending on the scale of a turbo failure the normal costs result in a turbo,intercooler,inlet manifold,cat and exhaust system.....on very very rare occasions and this is extremly rare the engine fails, this is because huge amounts of oil go into the inlet track and into the engine...the oil ignites and the engine revs to destruction.....once this process starts it cant be stopped ignition on or off.
If a swirl flap fails it always ends up being an engine replacement...never heard of one not being so. Heavy damage to piston,head and bore.
3,There are 2 options here and that is to fit the later modified manifold which is a direct replacement or to remove the swirl flaps from the manifold all together. The new manifold has thicker spiddles holding the butterflys in.
4,The engine is Duplex chain driven which has a liftime span.
Check the metal brake pipes at the rear for corrosion and treat them before they become an mot fail(follow the metal pipe from the flexi hose up towards the fuel tank)
Check rear trailing arm bushes
Check handbrake shoes
Check front wishbone joints and bushes
Check the turbo actuator vacuum pipe that runs from turbo to valve to accumulator then up over the engine and under the manifold(under engine cover)they perish and collapse...big cause of loss of power in the upper rev range.
stevesingo said:
Is whistling from the turbo a sign of impending turbo failure?
Steve
Sqealing is a sign, whistle is normal to a degree...If its really load its normally a sign that the turbo is over working, you may have an air leak in the system, crankcase breather is blocked or even restricted exhaust catalyst.Steve
How load is it? does it make a load whoosh when taking your foo off throttle?
[quote=< FORZA WEST]
1,Turbo failures are more comon upto EU4 where they changed to electronic turbo, but the turbo's dont fail as often as people think. When its in for service get them to remove the turbo air intake pipe and check the free play in the turbo impeler spiddle(just lift up and down with fingers) there should be about 1mm lateral play and about 0.5mm axial play (pull and push spindle).
They may find some oil sat in front of the spindle and in the pipe...this is a sign that the crank case breather filter on top of the engine requires relacment(interval for these is 60k)
2,Depending on the scale of a turbo failure the normal costs result in a turbo,intercooler,inlet manifold,cat and exhaust system.....on very very rare occasions and this is extremly rare the engine fails, this is because huge amounts of oil go into the inlet track and into the engine...the oil ignites and the engine revs to destruction.....once this process starts it cant be stopped ignition on or off.
If a swirl flap fails it always ends up being an engine replacement...never heard of one not being so. Heavy damage to piston,head and bore.
3,There are 2 options here and that is to fit the later modified manifold which is a direct replacement or to remove the swirl flaps from the manifold all together. The new manifold has thicker spiddles holding the butterflys in.
4,The engine is Duplex chain driven which has a liftime span.
Check the metal brake pipes at the rear for corrosion and treat them before they become an mot fail(follow the metal pipe from the flexi hose up towards the fuel tank)
Check rear trailing arm bushes
Check handbrake shoes
Check front wishbone joints and bushes
Check the turbo actuator vacuum pipe that runs from turbo to valve to accumulator then up over the engine and under the manifold(under engine cover)they perish and collapse...big cause of loss of power in the upper rev range.
[/quote]
Thanks for the detailed reply. I'll pass the details on to my garage.
Sounds like taking the Swirl Flaps out is the way forward.
1,Turbo failures are more comon upto EU4 where they changed to electronic turbo, but the turbo's dont fail as often as people think. When its in for service get them to remove the turbo air intake pipe and check the free play in the turbo impeler spiddle(just lift up and down with fingers) there should be about 1mm lateral play and about 0.5mm axial play (pull and push spindle).
They may find some oil sat in front of the spindle and in the pipe...this is a sign that the crank case breather filter on top of the engine requires relacment(interval for these is 60k)
2,Depending on the scale of a turbo failure the normal costs result in a turbo,intercooler,inlet manifold,cat and exhaust system.....on very very rare occasions and this is extremly rare the engine fails, this is because huge amounts of oil go into the inlet track and into the engine...the oil ignites and the engine revs to destruction.....once this process starts it cant be stopped ignition on or off.
If a swirl flap fails it always ends up being an engine replacement...never heard of one not being so. Heavy damage to piston,head and bore.
3,There are 2 options here and that is to fit the later modified manifold which is a direct replacement or to remove the swirl flaps from the manifold all together. The new manifold has thicker spiddles holding the butterflys in.
4,The engine is Duplex chain driven which has a liftime span.
Check the metal brake pipes at the rear for corrosion and treat them before they become an mot fail(follow the metal pipe from the flexi hose up towards the fuel tank)
Check rear trailing arm bushes
Check handbrake shoes
Check front wishbone joints and bushes
Check the turbo actuator vacuum pipe that runs from turbo to valve to accumulator then up over the engine and under the manifold(under engine cover)they perish and collapse...big cause of loss of power in the upper rev range.
[/quote]
Thanks for the detailed reply. I'll pass the details on to my garage.
Sounds like taking the Swirl Flaps out is the way forward.
stevesingo said:
The whistle ebbs and flows with the turbo coming on/off boost between 1300-2250rpm. When it is pulling hard you can't hear it. This is something that has occurred recently and hasn't developed from a quiet to louder whistle.
Performance is unchanged
Steve
My 530d developed a similar noise when the turbo failed. SorryPerformance is unchanged
Steve
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