Probably Turbo Failure - advice?

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TimG
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Probably Turbo Failure - advice?

Post by TimG » Tue May 08, 2018 7:53 am

Rubbish end to the bank holiday for me!

Coming down the A3 Car went into limp mode and makes a loud howling noise when you touch the throttle. No power (obviously), but no smoke either. AA man listened for 2 seconds and said turbo. It sounds exactly like this video! https://www.youtube.com/watch?v=VChAafMEnXU

A) Does anyone have a layout of the boost pipes so I can check for splits? Hard to see much in this engine bay.

B) Does anyone have any recommendations for the best place to source a turbo if it is in need of replacement. Its a 2006 120d M47 with 98k and fsh. Car is only worth £3k so need to be 'sensible' with cost of repair. A recon turbo with warranty might be cheaper than brand new from BMW etc. But from where?

Any advice much appreciated.

Tim
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Re: Probably Turbo Failure - advice?

Post by marco_polo » Tue May 08, 2018 8:10 am

Turbo failure does seem likely if you're getting screaming siren noises.

The charge pipes are known to split though, check the elbow in the pipe which runs from the front mounted intercooler to the EGR body on the passenger side of the engine bay (high up - easy to spot with the engine cover removed).

If you do need a recon turbo, I'd be having a chat with Essex Turbos.
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Re: Probably Turbo Failure - advice?

Post by TimG » Tue May 08, 2018 10:32 am

marco_polo wrote:
Tue May 08, 2018 8:10 am
Turbo failure does seem likely if you're getting screaming siren noises.

The charge pipes are known to split though, check the elbow in the pipe which runs from the front mounted intercooler to the EGR body on the passenger side of the engine bay (high up - easy to spot with the engine cover removed).

If you do need a recon turbo, I'd be having a chat with Essex Turbos.
Thanks for that. Noise did seem to be coming from the rear of the engine though.

Before I start making enquiries, any ideas on a ballpark figure on what I might expect to pay for a recon unit + labour time needed to fit?

Thanks
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Re: Probably Turbo Failure - advice?

Post by TimG » Tue May 08, 2018 2:06 pm

So got some quotes from my local Indy, assuming the turbo has gone:

£750 all inc. to rebuild turbo with a new 'cartridge'

£1150 all inc. to replace with a recon turbo OR a hybrid turbo from Universal Turbos (obviously would then need mapping too to get the gains).

Prices include cleaning the feed pipe, new oil and filter etc.

Rebuild seems the far more appealing option cost wise. Anyone have any opinions on this vs the recon route?
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Re: Probably Turbo Failure - advice?

Post by slindborg » Tue May 08, 2018 2:30 pm

That is EXACTLY how mine sounded when it ate itself.

I picked up a new core from UK turbos Direct on ebay (although I believe their site is marginally cheaper).
Rebuilt it all myself ( a few times due to learning along the way :lol: )
Its going well now, but does need the actuator stops relearning.

I found the turbo to IC pipe had a failed seal at the IC, You can simply get a new pipe but mine was ok so the £8 on a seal from BMW was fine.

Its a relatively straightforward job to take the turbo out, rebuild and refit. NOTE DO NOT cut the turbo oil return pipe as this is £60ish from BMW or £20 for a universal pipe from a silicone supplier. Think I got away with around £150 in parts, but took nearly a month so had to borrow cars etc


I'd say that £750 all in is a good price based on what I did. The core will be around £70-100, chuck in new oil, air filter and the cleaning of all intake pipework inc IC. A couple of days graft in reality.

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Re: Probably Turbo Failure - advice?

Post by TimG » Tue May 08, 2018 7:41 pm

Thanks Slindborg. That's really useful to read your experiences.

So I got a price from Essex Turbos. £360+VAT (£432.00) with a 2 year unlimited mileage warranty or £255+VAT (£306.00) with a 1 year unlimited mileage warranty.

This seems substantially cheaper than the above quote for a recon unit. How reputable are Essex Turbos Marco?
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Re: Probably Turbo Failure - advice?

Post by Ecom » Tue May 08, 2018 10:57 pm

TimG wrote:
Tue May 08, 2018 7:41 pm
Thanks Slindborg. That's really useful to read your experiences.

So I got a price from Essex Turbos. £360+VAT (£432.00) with a 2 year unlimited mileage warranty or £255+VAT (£306.00) with a 1 year unlimited mileage warranty.

This seems substantially cheaper than the above quote for a recon unit. How reputable are Essex Turbos Marco?
sounds like you may be getting a parts only price, as opposed to a fitted price?
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Re: Probably Turbo Failure - advice?

Post by TimG » Wed May 09, 2018 11:37 am

Ecom wrote:
Tue May 08, 2018 10:57 pm
TimG wrote:
Tue May 08, 2018 7:41 pm
Thanks Slindborg. That's really useful to read your experiences.

So I got a price from Essex Turbos. £360+VAT (£432.00) with a 2 year unlimited mileage warranty or £255+VAT (£306.00) with a 1 year unlimited mileage warranty.

This seems substantially cheaper than the above quote for a recon unit. How reputable are Essex Turbos Marco?
sounds like you may be getting a parts only price, as opposed to a fitted price?
Correct. Sorry I wasn't clear in my post above that the original quote I had received was £700 for recon turbo + £450 odd for labour + oil etc.

Essex will supply the turbo for £306 so under half the price?!

Anyone know how much a recon turbo is typically to compare these quotes too?
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Re: Probably Turbo Failure - advice?

Post by marco_polo » Wed May 09, 2018 11:57 am

Essex Turbo's are good, I don't recommend anyone else usually. 2 year warranty gives confidence.
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Re: Probably Turbo Failure - advice?

Post by TimG » Wed May 09, 2018 8:20 pm

£432 for the turbo with 2 year warranty or £306 If you choose 1 year warranty.

Hmmmm.
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Re: Probably Turbo Failure - advice?

Post by TimG » Wed May 09, 2018 8:23 pm

How easy is it to check the turbo for play in the shaft? Would I have to take much apart? The garage I use can't look at it until next Friday so wouldn't mind having a look myself.
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Re: Probably Turbo Failure - advice?

Post by marco_polo » Wed May 09, 2018 9:40 pm

Very easy, charge pipe off, give it a wiggle.
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Re: Probably Turbo Failure - advice?

Post by TimG » Thu May 10, 2018 9:45 pm

marco_polo wrote:
Wed May 09, 2018 9:40 pm
Very easy, charge pipe off, give it a wiggle.
Two bolts at the top of the charge pipe and then wiggle off turbo?

Genuine question. Why is it not clamped onto the turbo, but just pushed on?

So 'any' lateral movement in the shaft is a bad sign I'm assuming!?
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Re: Probably Turbo Failure - advice?

Post by marco_polo » Thu May 10, 2018 10:52 pm

TimG wrote:
Thu May 10, 2018 9:45 pm
marco_polo wrote:
Wed May 09, 2018 9:40 pm
Very easy, charge pipe off, give it a wiggle.
Two bolts at the top of the charge pipe and then wiggle off turbo?

Genuine question. Why is it not clamped onto the turbo, but just pushed on?

So 'any' lateral movement in the shaft is a bad sign I'm assuming!?
Yup.

No need to be clamped on as it's the suction side of the turbo.

Yes, any lateral wiggle is very bad news.
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Re: Probably Turbo Failure - advice?

Post by TimG » Fri May 11, 2018 9:23 pm

So Turbo replacement ... Is it necessary to replace the oil feed and return pipes? Or is it acceptable to clean them out? Does this depend on 'how' the turbo has failed?

Iirc the oil breather/ separator can be cleaned as long as it is the vortex type?
Last edited by TimG on Fri May 11, 2018 9:43 pm, edited 1 time in total.
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