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Laguna 2 DCI. BLOWN TURBO


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Posted

What Alan says is all true, but unfortunately with these units it's normally the blades' bearing that fails resulting in total failure.

 

Bein optimistic it could be simple but unfortunately I doubt it.

Posted

When my Merc started smoking like a chimney and not pulling at all, I took the turbo out and it had just been gummed up with oil. I can’t even remember why it got in that state now-but I cleaned it up and it was as right as rain. 

Although the one on the Renner is probably a lot more complicated and possibly more fragile?

Posted

Turbos fail due to poor lubrication. The brass centre bearing wears allowing excess play in the shaft. The loud whine of a shagged turbo is the impellers fouling the housing. The oil seals are actually steel rings. Intercoolers can be washed out successfully along with the hoses although oil does rot the rubber. The Laguna oil feedpipe is a solid steel one with brake pipe style unions and not a rubber flexy one with banjos and is very easy to remove and clean. I did it on mine in 30 mins.

The Laguna turbo is merely a generic Garrett, and you can buy Mellet CHRA centre assemblies on ebay for around 150-200 quid and swap over the intake and exhaust housings. The DCi turbo set up is simple enough. Make sure it has synthetic oil, halfway between min and max, changed every 8000 miles and the breather and EGR clean.

 

I'm really pissed off tonight: i was offered a 51 plate Laguna 1.8 Tourer for £200 and I lost the bastard phone number.

Posted

"I'm really pissed off tonight: i was offered a 51 plate Laguna 1.8 Tourer for £200 and I lost the bastard phone number. "

 

Can’t you find it on your search history, if you did the dealing online?

Posted

So it sounds like it should live on then. I'll see what happens but we could find a Laguna shaped shed appearing on our drive.

Posted

Good, I don’t like to see Frenchies weighed in.

Posted

It's a risk but you just gotta weigh up the risk for yourself.

 

Like matey said the oil feed pipe is solid metal and you can clean it out. I do disagree that intercoolers can be cleaned out effectively though. For the cost of the repairs vs risk of failure I would replace the intercooler every time. But I tend to think of things as though I'm doing a job for a customer. I done the last one mates rates and all in with a brand new garret and pattern part intercooler with new rubber parts of the hoses (the big parts of the hoses are metal and plastic respectively) I charged £650. The turbo was £395 and warranty was only valid if the oil feed pipe was changed too (and if you read the small print it says it must be a Renault part - £38)

Posted

Blimey you must have ended up with like £100 in your pocket out of that job, rather you than me

Posted

Blimey you must have ended up with like £100 in your pocket out of that job, rather you than me

Probably less to be honest but its a mate that does me plenty of favours. The car is a taxi and I never pay for a taxi ride after a night out, at Xmas etc so its all good.

Posted

Fair enough, I like arrangements like that. I hate doing jobs for people for money, but if some sort of 'trade' is available i'm all for it

Posted

If a bit of swarf or something became dislodged from the intercooler wouldn't it just pass though the turbo and engine with little or no effect? 

Posted

I wouldn’t feel comfortable risking it.

Posted

I R RANK AMATEUR

 

Rev. BJ seems to be talking a lot of sense to me though. If you can get a new spinny bit of a decent quality for a couple of hundred quid that sounds like a good compromise

Posted

Update time.

My mate has been told it's going to cost 700 calamari to get this fixed. Doors anybody know a place that can do it cheaper? Failing that he's offered it to me do bridge money.

Posted

What does the £700 cover? If that's for a brand new turbo with warranty, and oil feed pipe I think that's a good price

Posted

Yeah new turbo with warranty.I told him it was a good price. I think he's just Fed up of it, he's spent allot of money on out over the years

Posted

The car can't be worth much more than £700. I wonder if there's any fix for these so you can just run them N/A? Now that would be miserable.

Posted

£700 for a new turbo and warranty doesn't sound bad, but it'll still be a newish Renault dci.

I'd tell him to take the £700 and the money from the bridge and buy something that is less likely to explode/steal all his money.

Posted

it should make a good breaker If I go down that route, or a diy repair maybe.

Posted

To try and give you a perspective on that:

 

My trade is cars: fixing em, breaking em, selling em. And even if I was given a DCi Laguna with a blown turbo - I wouldn't fix it. I'd sell the good bits, weigh the shell in and thank god that another French heap is off the road.

 

That said, if you decide to fix it. I was having a look around and there's a couple of step by step pages on forums complete with pictures.

Posted

£700 is a fair(ish) price for it to be fixed, given a warranty, flushed, new oil and filters, all the new feed pipes etc, all signed off working with no surprises to be had.

I paid £475 for a Leon turbo which covered everything from having the AA dump it at the garage, to me driving it away with a years warranty on the turbo a week later. 

 

However, as many people have already said... it's whether the Legume is of sufficient value to warrant the work. That depends on the condition of the rest of it, but it's a fair old stretch even for a mint example. Certainly at £700 he's not going to get it fixed and punt it on for a profit (which to my mind is money back plus what he'd have got over the bridge).

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