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GregPrice80



Member Since: 25 Jan 2024
Location: Exmouth
Posts: 47

United Kingdom 2010 Range Rover Autobiography Black TDV8 Barolo Black
Random restricted performance - any ideas

Got a bit of an ongoing aggravation on my 2010 4.4 TDV8. Hoping to draw on the experience of the forum to identify the potential problem.
I’ve scoured the forum for an identical issue and although aspects of the issue have been documented I can’t find an exact match.

The red restricted performance and limp mode happens intermittently during longer runs, all after 20-30 mins of driving at 60-70 mph. Its got to be point that on my regular commute it happens at nearly the exact same point in the journey. When it does happen I can pull over switch things off and let the car sit for 4-5mins, then on start up it’s gone and car drives fine.

Car is on 137000 miles and has been well maintained. I’ve had the car for 12 months and have changed oil every 6k.

Potential problems
- pressure leak. I’ve had a high pressure smoke test done a few times which no leaks evident. Plus I kinda think the restricted performance would happen immediately on heavy acceleration if an air leak was there.

- DPF regen issues - I think this is the most likely issue. I think the restricted performance pops up when the car has failed to complete a regen. Could be the DPF needs cleaning or replacing? Or is there an issue with temperature? It does complete regenerations, but does also seem to fail with them sometimes.

- Turbo pressure leak or actuator issue? Car does feel a bit gutless sometimes and has an odd swoosh after acceleration? Could this be causing the car to dumb more oil in DPF and stop it from successfully regen sometimes?

To add a bit more info to this, on 2 occasion the restricted performance has been accompanied by DPF full message. One was visit dealer and came after I had been driving particularly aggressively. Which got me thinking is there an issue causing more oil to clog up the DPF?

I’ve had it plugged it to check error code. Only one that keeps reappearing is the common egr temp sensor one that hides down the side of the manifold. This is on the list of jobs to do, but do people think this could be the main cause of my issue? I’ve seen some say it has no impact on the running of the engine?

Sorry about long post. Any help/questions gratefully received. 2010 Range Rover 4.4TDV8 Autobiography Black Edition

Gone -
2005 Discovery 3 2.7 TDV6 S
2002 Range Rover 3.0 TD6 HSE

Post #716310 17th Apr 2025 10:09pm
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MC-RR



Member Since: 26 Jan 2022
Location: Monte Carlo
Posts: 30

Monaco 2012 Range Rover HSE 4.4 V8 Ipanema Sand

Hi,
Great and concise write-up on your problem. I seem to be having very similar issues with my 2011.
Our motorways have several steep inclines and sometimes the restricted performance is triggered when climbing even a low RPM (1700+-).
Have you read the codes when you have the issue? I usually have the P1247 Turbo boost and sometime the P0483 fan performance code.
I have replaced the air plenum and silicon hoses yet the problem persists.
Would love to know if you have managed to find solutions.

Best,

A RR HSE TDV8 4.4 2012
Jaguar S type 3.6l
Jaguar XJ8
Jaguar X type 3l
Triumph TR6 1976 - Jeep CJ7 1976

Post #722719 12th Aug 2025 9:08am
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GregPrice80



Member Since: 25 Jan 2024
Location: Exmouth
Posts: 47

United Kingdom 2010 Range Rover Autobiography Black TDV8 Barolo Black

I’ve since had the EGR temp sensor replaced and so far so good. It could well have been effecting the cars ability to complete some DPF regens so I thought I’d get it done and eliminate the possibility. It’s been a few months now and no restricted performance as yet. That said it sometimes wouldn’t happen for months anyway.
Sounds like yours could be turbo related, perhaps the primary turbo if it’s happening at lower revs. Could be worth checking connections around the primary turbo. 2010 Range Rover 4.4TDV8 Autobiography Black Edition

Gone -
2005 Discovery 3 2.7 TDV6 S
2002 Range Rover 3.0 TD6 HSE

Post #722720 12th Aug 2025 9:15am
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MC-RR



Member Since: 26 Jan 2022
Location: Monte Carlo
Posts: 30

Monaco 2012 Range Rover HSE 4.4 V8 Ipanema Sand

Thank you for the update Smile RR HSE TDV8 4.4 2012
Jaguar S type 3.6l
Jaguar XJ8
Jaguar X type 3l
Triumph TR6 1976 - Jeep CJ7 1976

Post #722721 12th Aug 2025 9:17am
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