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DISCO3.CO.UK > Maintenance & Mods (D3)

Turbo actuator problem?

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HairyFool

Member Since: 04 Jan 2023
Location: Essex
Posts: 572

2016 Discovery 4 3.0 SDV6 Landmark LE Auto Zanzibar

Turbo actuator problem?

The car lost power towing the caravan Saturday, managed to get off the road and ran the diagnostics which showed a boost pressure error.

Cleared all errors and was able to set of and finish the journey with no further drama. It did this before and did the free off and lubricate the actuator rod about 4 months ago and all seemed to be good until now so now need to find a longer lasting fix.

The only thing I find on line apart from the complete turbo is a replacement acuator rod and pin. It seems a simple component and difficult to see how it could go wrong however as it can be obtained separately I presume LR saw it as an issue. Anyone replaced this and was it effective as it is a significant amount of work to get to it? A visitor from the dark side, my other vehicle is an MG5 EV

10th Oct 2023 11:29 am

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10414

2005 Discovery 3 TDV6 HSE Auto Rimini Red

Would be interesting to have a link to the spare part you refer to.

Access to actuator is impossible.
Access to the rod is possible, but not sure what you will achieve.

By the time you go to the pain/cost to remove the turbo, common sense would say fit a recon one.

I would recommend you try Wynns VVT cleaner (fuel additive in purple bottle). It will clean out the soot from inside the turbo and make the activation free.

Maybe you want to add a bottle into the boot for your towing holidays

10th Oct 2023 12:14 pm

HairyFool

Member Since: 04 Jan 2023
Location: Essex
Posts: 572

The "Actuator Service kit" is LR023086

Click image to enlarge

As you can see there is not a lot to it but it seems odd that LR sell it as a separate part unless they have seen enough issues in the past to warrant it..

I was just trying to find out if it was worth all the work to get to the turbo to change the rod. To find out if it wis effective I would have to get the turbo out , change it then put it all back together to test it.
To then have to repeat the process to replace the turbo as a refurb part when the kit doesn't solve it....

A visitor from the dark side, my other vehicle is an MG5 EV

10th Oct 2023 10:36 pm

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10414

I do wonder if that is a modified piece (hence why sold) due to the previous falling off or breaking.

In any case, if yours it still present and connected (eg stiff) it’s not going to help your issue

We

11th Oct 2023 6:56 am

gstuart

Member Since: 21 Oct 2016
Location: kent
Posts: 13752

2005 Discovery 3 TDV6 Base 7 Seat Auto Java Black

Plus 1 as Also had good success with fuel additive along with lubricating the actuator arm

Last edited by gstuart on 16th Oct 2023 4:53 pm. Edited 2 times in total

11th Oct 2023 12:12 pm

HairyFool

Member Since: 04 Jan 2023
Location: Essex
Posts: 572

Yes I am going to try a diesel additive as well as redoing the actuator lube.

I have dug out a can of WD40 PTFE dry lubricant spray which is rated up to 250°C which should be more appropriate temp for its use if I can get into where it needs to go. A visitor from the dark side, my other vehicle is an MG5 EV

11th Oct 2023 8:32 pm

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