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Discussion Starter · #3 ·
No noise, had the odd feel of a misfire every now and then (was reading the hesitation thread as that's similar) but no real symptoms until full failure... :|
 

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S9KSY said:
Mine has been whistling when cold for over a year.
Sounds like a far away ambulance siren.
Dealer says there's nothing wrong with turbo.
Did yours start like this before it failed?
The turbo on the 177PS model is different from the old 163PS model - apparently it is electric now (so said the technician!)

Mine has given me hesitation problems. Cotswold Cheltenham could not get any info from it as is crashed the diagnostic system, so I am waiting on an appointment with the Chief Regional Technician.

Seems everybody is having problems with this new output engine. Griggsy, if you want to take it further, send me a message.
 

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@zimzimmerbimmer;

Electrical turbo????
Is the technician mistaking the 120d for a Nilfisk or what?
 

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340Nm! said:
@zimzimmerbimmer;

Electrical turbo????
Is the technician mistaking the 120d for a Nilfisk or what?
I think he meant that the vanes on the turbo are adjusted electrically but I thought that was the same on the pre-facelift 118 and 120d????
 

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340Nm! said:
@zimzimmerbimmer;

Electrical turbo????
Is the technician mistaking the 120d for a Nilfisk or what?
Lol - I was just repeating what the tech said, but based on recent experience, I won't necessarily believe everything I'm told by BMW techs...
 

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Is this true? do turbos really have pitch control on the vanes?

It seems unlikely to me but I'm willing to be corrected.
 

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They have variable vane geometry, minimizing lag by decreasing spool time at low engine RPM, the angle of attack decreases. Tthen at higher RPM when the turbo has spooled the angle of attack increases allowing more air past the compressor.

The versions I know of are controlled by vacuum. I'm not sure whether the new ones are controlled electrically. I suspect what is meant is that the Vacuum is controlled electrically.
 

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I've some experience of this with VW diesels, which also use the Garrett VNT variable vane technology, which does away with the wastegate.

In 2001/2001 Garrett supplied a faulty batch to VW and there were many failures, some after only 50 miles. Mine went after 1500.

Performance diesels work at much higher levels than petrol cars - for instance the PD150 boosts I think at around 1.4 bar, remapped at 1.6 bar (and 1.95 bar in the case of my 230bhp hybrid turbo car). In contrast a 996 Turbo runs at 0.8 bar (remapped generally at 1.2 bar). Funnily enough the 997 Turbo is the first petrol car to use VNT turbos.

I heard from a turbo specialist that BMW were on their 11th generation turbo part for the 150ps engine in the 320d, so turbo failures are far from rare for BMW.
 

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Discussion Starter · #13 ·
Yep, speaking to services they just told me the turbo has changed from a mechanical to electrical unit in the latest car. He had no info re the hesitation issue (no codes seen) but agreed it sounds like it could be turbo related.
My problem was 'an internal part failure', no more than that known at present.
 

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Most turbos that run over 1.5bar wont withstand that constant pressure. I did quite a it of work with garret on this around 4 years ago. Short bursts of that pressure should be ok, but prolonged pressure, it will blow. The thing is, it wont tell you this in the manual...
 

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Hi Lee,

Have a look at my problems on bmwland.co.uk:

bmwland.co.uk/talker/viewtopic.php?t=62774

Have a read through, is the description exactly the same as your problem??

I am on turbo no3, 1st one lasted 3500 miles, second 1300 miles and car has now been in the garage for 2 weeks, a further 3-4 weeks before parts are available.

We could do with a chat to see if our issues are the same, my head office is also in St Albans so we could maybe meet up for a coffee/beer? to discuss??

Mike
 

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My dad owns a 320d (2002) so far the turbo failed twice and replace by the dealer for free)
The vent broke. that's all I know. we couldn't drive the car when that happen. maybe 40kmh with crazy noise coming from the turbo fan.
 

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BMW confirmed TURBO has failed - not in stock in UK or Germany as they are changing supplier

could be up to 3 weeks
 

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Hi all,

in Portugal, we are having this same problem. I've know of at least 3 cases of broken turbos (one 120d 177cv and two 320d Coupe 177cvs). Mine hasn't failed until now, and I'm not the kind of person that drives for lowest consumption values, but it has only about 4000 kms by now. I've already spoke to the BMW dealer were I bought my car, and they told me that this is already an official and assumed issue. They also told me, that the cars where the problem has occurred, are cars sold between August and the end of October, at least they all were from this period, but it doesn't mean it can't happen to any other.

Another thing, just to clarify those of you with doubts about "electric" turbos, the model with the 163 bhp engine, also has an "electric" turbo. I don't know if it is the same of the 177 bhp model, but it works the same way. And it is not really an electric turbo. The wastegate valve, instead of being controlled by vacuum, it is electronically commanded by the car ECU.

Please keep this post up to date. It is a serious issue that interests to all of us.
 

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BlackPuma said:
They also told me, that the cars where the problem has occurred, are cars sold between August and the end of October, at least they all were from this period, but it doesn't mean it can't happen to any other.
That would include mine then :(

Lets hope it doesn't affect us all
 

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Rog said:
BlackPuma said:
They also told me, that the cars where the problem has occurred, are cars sold between August and the end of October, at least they all were from this period, but it doesn't mean it can't happen to any other.
That would include mine then :(

Lets hope it doesn't affect us all
Well, these dates are regarding to cars sold in Portugal and by the dealer where I bought mine...

Right now, I think I've made a bad choice, because just after I bought mine, the 123d came out, and I would for sure choose that one... at least, the twin-turbo versions are not afected by theese kind of trouble, because the turbos are not with variable geometry, what means that they are much less trouble addicted...
 
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