1.6 Hdi / DV4 / DV6 turbo feed modification.

[Pappi]

Thanks again. Yeah think I'm going to flush the engine and check the banjo filter at next oil change. If I see any signs of blockage I'll remove it completely.

I was to check the turbo for axial play today, but I ended up cleaning the inside of the car instead.

[Pappi]

Checked the turbo today. There is absolutely no more play than it should be. Zero axial play and only bearly visible side to side play. Is that a sign that the turbo is still OK? There was a small drip of oil in the bottom of the air-intake on the turbo. And some at the bottom of the breather tube.

[Pappi]

I really don't know what happened but after I removed the air intake tube, cleaned it and tightened it back on, the turbo is a lot quieter. Still some whine noise but a lot less. A miracle maybe.

[GiveMeABreak]

Did you see anything much come out of the intake tube when you cleaned it?

[Axa]

I've had problems with the air intake tube sliding off the turbo due to oil on the red rubber gasket. After solving that with some steel string the turbo went slightly more quiet. Maybe yours were not connected properly..

[Pappi]

Did you see anything much come out of the intake tube when you cleaned it?

Nah just a few drops of oil, nothing else. I'm suspecting the intake-tube to the turbo was a bit loose or something. Tightened it on good and now I can bearly hear the turbo even when pushing it...

[GiveMeABreak]

Excellent.

[Pappi]

I've had problems with the air intake tube sliding off the turbo due to oil on the red rubber gasket. After solving that with some steel string the turbo went slightly more quiet. Maybe yours were not connected properly..

I've just noticed that I don't even have that red inner rubber sleeve/seal. What is its purpose? I think the previous owner has thrown it away or something. It's just the black big air-tube straight on the turbo intake.

[Pappi]

When I do the engine flush I can't rev the engine according to the instructions on Liqui Moly. Need to be sure the flush-agent makes its way through that turbo bonjo bolt. Do you guys think it will? Even at idle?

[Axa]

I've had problems with the air intake tube sliding off the turbo due to oil on the red rubber gasket. After solving that with some steel string the turbo went slightly more quiet. Maybe yours were not connected properly..

I've just noticed that I don't even have that red inner rubber sleeve/seal. What is its purpose? I think the previous owner has thrown it away or something. It's just the black big air-tube straight on the turbo intake.

Purpose is to avoid air getting sucked in to the turbo before going trough the air filter. It puzzles me how the intake tube could be connected securely without that thick seal in place???
No big cost at eBay https://rover.ebay.com/rover/0/0/0?mpre ... 2589087947

[Slobo2712]

What you advise for me to say my mechanic,change this bolt with net or remove net(is there more nets?)?I want to do this.

[Andle]

if you use the correct grade of oil, and service the engine at the recommended intervals (at the very least, more often would be better), you should not have a problem. Replacing the banjo bolt would improve the oil/crud situation, thereby reducing the risk of a turbo failure even more.

I would say this is right. Most of the discussion of the supposed issues with this motor all tend to refer at some point to a report done by Api replacement turbos that featured a unit that had been given just one oil change in 60,000 miles (that is two fills including that done in the factory) and was probably run on the semi-synth oil that was originally specified for this motor. I feel that this whole issue is likely to be the combination of 2 factors. One, this motor, like many other modern high performance units that operate at higher temperatures, is less tolerant of neglect that older units. Two, the internet has a tendency to create 'memes' that take on a life of their own.

Change the oil regularly using fully synthetic oil and and periodically check the tightness of the injector mounting bolts and you will vastly reduce the chances of any issues arising.

People keep saying to use fully synthetic oil - yet on the forum total ineo ecs 5w-30 is recommended repeatedly (semi-syn).

[moizeau]

The oil is fully synthetic NOT semi.
http://www.lubs-products-database.total ... 3000/23437

[Andle]

The oil is fully synthetic NOT semi.
http://www.lubs-products-database.total ... 3000/23437

Absolutely correct. My mistake.

[GiveMeABreak]

All the officially approved engine and gearbox oils are on the Forum Wiki here for reference:

https://frenchcarforum.co.uk/wiki/Citro ... arbox_Oils

Just scroll down to the engine codes top see which oils are suitable and then determine the temperature / climate you are in on the chart at the top of the article.