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boxoftricks



Member Since: 06 Feb 2019
Location: Home Counties
Posts: 747

United Kingdom 2011 Defender 110 Puma 2.4 USW Zermatt Silver
Turbo actuator advice please
Cruises at 2250 rmp fine, however on a long journey any higher enters limp mode. Also when driving it does not feel quite right. Not smooth power. Ignition off re-sets after limp mode and it's fine.

My local defender garage who I trust ran live diagnostics and their conclusion is the turbo actuator is faulty. It's a 2.4 tdci that had done 120k. Spent a lot of its life doing short runs, not long motorway drives.

Can you replace the actuator without replacing the complete turbo?

Also with the high mileage is it worth replacing with a new turbo at the same time to futureproof?

Thx
Post #993791 23rd May 2023 5:42pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2416

Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Yes, you can change the actuator. Puma 110" SW

.............................................................
Earth first. Other planets later
Post #993796 23rd May 2023 6:27pm
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hank



Member Since: 12 Sep 2016
Location: South Wales
Posts: 2300

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
What error codes are stored? > 110 XS Double Cab
Post #993798 23rd May 2023 6:51pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 2010

United Kingdom 
It could be the linkage needs lubricant or the wiring loom to the actuator is damaged through rubbing, the latter does happen , see posts by Blackwolf, so I would check loom first, lube linkage and see if that resolves issues before purchasing parts.
Post #993800 23rd May 2023 6:53pm
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Co1



Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 3677

United Kingdom 2013 Defender 90 Puma 2.2 HT Loire Blue
It’s very often just the diaphragm in the actuator, so pretty cheap to DIY. Also check for leaks on the vacuum hoses to the turbo as that can cause the same fault.
Post #993803 23rd May 2023 7:29pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17392

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
No diaphragm on a Puma, it's electronically controlled by means of a stepper motor.
Post #993804 23rd May 2023 7:40pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
if its lots of short journeys it may be the vanes are coked up and preventing the actuator from doing what it should?
thats what happened to mine. thankfully mine was under warranty.
and I believe this is another benefit of doing away with the egr. Thumbs Up
Post #993828 24th May 2023 8:30am
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Norfolk-n-chance



Member Since: 01 Sep 2019
Location: Usually in the garage!
Posts: 80

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Santorini Black
Just had a similar problem on the wife’s Audi. Main dealer diagnosed it as turbo fault and quoted £2500 to replace it! Shocked
Went to a local garage and he suggested spraying the living daylights out of the actuator and the arm etc with wd40, leave it to do its stuff over night, give it a good run then spray it with acf or gt85 to protect it.
Guess what, it worked!
Got to be worth a try! “a committee is a group of people who individually can do nothing, but as a group decide nothing can be done.”
Post #993832 24th May 2023 8:53am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
wot he said /\ Thumbs Up
Post #993834 24th May 2023 9:04am
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boxoftricks



Member Since: 06 Feb 2019
Location: Home Counties
Posts: 747

United Kingdom 2011 Defender 110 Puma 2.4 USW Zermatt Silver
Thanks all. Removing the turbo and replacing the actuator seems relatively straightforward.
Post #994094 26th May 2023 8:19am
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Norfolk-n-chance



Member Since: 01 Sep 2019
Location: Usually in the garage!
Posts: 80

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Santorini Black
But if the actuator is just sticking due to some corrosion then……. “a committee is a group of people who individually can do nothing, but as a group decide nothing can be done.”
Post #994106 26th May 2023 10:34am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17392

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
boxoftricks wrote:
Thanks all. Removing the turbo and replacing the actuator seems relatively straightforward.


You don't need to remove the turbo to replace the actuator.
Post #994116 26th May 2023 11:44am
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