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SETDV8



Member Since: 30 Apr 2022
Location: Kent
Posts: 13

United Kingdom 2011 Range Rover Vogue SE 4.4 V8 Stornoway Grey
Reduced performance DPF filter full.

Hi all, first post on here.

I have a 2011 L322 4.4 TDV8. It's covered 84000 miles, FSH.

Last week reduced performance kicked in followed by DPF Filter Full. Took it to my local garage and they performed a mobile re-gen whilst having their diagnostic computer plugged in to the OBD.

Apparently there was 36Mg of soot, they reduced this to 6Mg and all was well, until this morning when it went into performance reduced mode. Started it 12 hours later after work and all was well again.

Anybody ever experienced this? if so could you enlighten me please?

Cheers,

Steve.

Post #639226 10th Aug 2022 8:15pm
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AJGalaxy2012



Member Since: 11 Jun 2018
Location: Gainsborough
Posts: 1219

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Bonatti Grey

The usual culprits are the 4 x short hoses on the inlet manifold or a cracked inlet manifold. Look for sooty deposits around the inlet manfold or get a high pressure smoke test done. BMW i3 Electric Car (170 bhp mobility scooter)
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Post #639227 10th Aug 2022 8:44pm
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garyRR



Member Since: 13 Mar 2021
Location: Hampshire
Posts: 685

United Kingdom 

Search the forum. There's hoards on this topic.

A full DPF is usually not the cause, it's the symptom. In my mind, that's a little disappointing the garage went straight to a DPF clean, when they should know better (just my view).

Usual causes are:

1. Sooted up MAP sensor, which should be cleaned every few thousand miles. This is free so, try it first. Remove the engine cover and it's pretty obvious - has 1x T20 screw on it and a multiplug going to it
2. Have a good look at and around the 4x hoses on the 'donut' (inlet manifold) plus the two top charge hoses (the big rubber hoses at the front of the engine bay). Look for soot or oily deposits in their vicinity or white gunk
3. Failure of the seal inside the union between the throttle body and top left hose (a very common failure). This can be bodged with gas specification PTFE tape or the part needs replacing (£175 but takes 5 minutes to fit on the driveway with no more than a screwdriver). Look at the top left hose adjacent to the left airbox and follow it until you see a plastic fitting with a metal clip. It usually fails in this area so, you'd see sooty deposits around the fitting and on engine components nearby
4. Exhaust Gas temperature sensors down the sides of the EGR on the exhaust manifolds

Less common culprits are the temperature sensors beyond the exhaust manifolds.

If after steps 1-3, you haven't found the cause, it may save you a lot of hassle in the long run investing the £300 or so in the IID tool, so you can get full Land Rover diagnostics and as suggested above, i'd also consider a smoke test, to rule out any leaks, as they are the most common cause of the DPF error on this engine. 2011 Range Rover Vogue SE 4.4 TDV8

Post #639244 10th Aug 2022 11:56pm
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DrRob



Member Since: 16 Apr 2015
Location: Hampshire
Posts: 3402

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Welcome to forum Steve Thumbs Up
Follow Gary's advice Bow down
Your garage has treated the SYMPTON and not the CAUSE which to me, is the sign of a Censored garage to be honest.
If you're not comfortable to do the checks that Gary has listed then take it to a specialist independent Land Rover garage. There are a few in Kent plus our site sponsor Glenrands a bit further in Hampshire (have loan cars).
Thumbs Up 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory interior and clear glass = "Rory"
1974 Series 3 Lightweight = "Millie"
--------------------------------------------------
2012 SDV6 Range Rover Sport - gone
2012 Freelander - gone
1993 200 Tdi Range Rover Classic - gone after 14 years rolling restoration "Rangie"
Series 2A V8 Lightweight - gone
1952 80" - gone
1949 80" - still in family since 1975

Post #639254 11th Aug 2022 8:10am
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 1070

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

There is also how it’s driven. DPF regeneration needs sustained steady road speeds above 50mph so if it’s only been used slowly around town on short trips it will never regenerate and quickly fill up with soot. Also if some of the sensors are faulty it will prevent regeneration so a full diagnostic fault check is needed. 2012 TDV8 Vogue (L322)

Post #639256 11th Aug 2022 8:12am
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DrRob



Member Since: 16 Apr 2015
Location: Hampshire
Posts: 3402

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue
Re: Reduced performance DPF filter full.

SETDV8 wrote:
and all was well, until this morning when it went into performance reduced mode. Started it 12 hours later after work and all was well again.


This slightly hints at a split manifold to me. Did it ping up after you booted it a little? 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory interior and clear glass = "Rory"
1974 Series 3 Lightweight = "Millie"
--------------------------------------------------
2012 SDV6 Range Rover Sport - gone
2012 Freelander - gone
1993 200 Tdi Range Rover Classic - gone after 14 years rolling restoration "Rangie"
Series 2A V8 Lightweight - gone
1952 80" - gone
1949 80" - still in family since 1975

Post #639258 11th Aug 2022 8:14am
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SETDV8



Member Since: 30 Apr 2022
Location: Kent
Posts: 13

United Kingdom 2011 Range Rover Vogue SE 4.4 V8 Stornoway Grey

Thanks for your replies gents.

In reply to Dr Rob, yes I was doing around 70mph and accelerated to overtake.


Taken it all on board and will report back when resolved.

Post #639342 11th Aug 2022 9:30pm
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gotters



Member Since: 15 Aug 2015
Location: London
Posts: 40

United Kingdom 2012 Range Rover Autobiography 4.4 V8 Santorini Black

as has been stated you really need to get to what is behind the reduced performance error and get the codes read, or get a code reader (I love the gap one as frequently mentioned here)

I got amber reduced performance from a faulty fuel sensor, was a 5m change once we knew what was triggering it.

Post #639359 12th Aug 2022 7:14am
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Fox889



Member Since: 04 Jun 2019
Location: Bury St Edmunds. Suffolk
Posts: 576

United Kingdom 2012 Range Rover Westminster TDV8 Orkney Grey

If you’re getting the RP message & limp mode, but it clears after you’ve stopped, locked the car & unlocked after a few minutes (as happened to me) try the second turbo actuator rod, through lack of use, this tends to seize up. When you try & hit 2500-3000rpm the second turbo can’t spool up so throws up the dreaded RP message.
There’s loads of threads on here about it/them.

Keep us informed, we’re a nosey lot!😜 2012 Orkney Grey Westminster 4.4TDV8 with Ivory interior.........nice!
BMW R1150GS
BMW Z4 3.0 Sterling Grey
Couple of Montesa's for good measure
Austin A40 Farina MK2

Post #639360 12th Aug 2022 7:57am
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DrRob



Member Since: 16 Apr 2015
Location: Hampshire
Posts: 3402

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Keep us posted so we add to the collective knowledge bank Thumbs Up 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory interior and clear glass = "Rory"
1974 Series 3 Lightweight = "Millie"
--------------------------------------------------
2012 SDV6 Range Rover Sport - gone
2012 Freelander - gone
1993 200 Tdi Range Rover Classic - gone after 14 years rolling restoration "Rangie"
Series 2A V8 Lightweight - gone
1952 80" - gone
1949 80" - still in family since 1975

Post #639361 12th Aug 2022 7:57am
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Baltic Blue



Member Since: 13 Aug 2015
Location: North Wales
Posts: 3456

United Kingdom 2011 Range Rover Vogue SE TDV8 Baltic Blue

Another possibility….
If you put your foot down at 70mph, taking the engine above 2,500 RPM, it could be a stuck CSOV .
Codes will prove it.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Post #639363 12th Aug 2022 8:13am
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SETDV8



Member Since: 30 Apr 2022
Location: Kent
Posts: 13

United Kingdom 2011 Range Rover Vogue SE 4.4 V8 Stornoway Grey

Had it decoded this morning and it seems there maybe a an issue on the inlet manifold side of things, as suggested by GaryRR.

Booked in for next week, smoke test and then hopefully all will be revealed!!

I'll update next week.

Thanks again for your posts gents. Thumbs Up

Steve.

Post #639388 12th Aug 2022 11:38am
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DrRob



Member Since: 16 Apr 2015
Location: Hampshire
Posts: 3402

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Nice. Keep us posted Thumbs Up 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory interior and clear glass = "Rory"
1974 Series 3 Lightweight = "Millie"
--------------------------------------------------
2012 SDV6 Range Rover Sport - gone
2012 Freelander - gone
1993 200 Tdi Range Rover Classic - gone after 14 years rolling restoration "Rangie"
Series 2A V8 Lightweight - gone
1952 80" - gone
1949 80" - still in family since 1975

Post #639396 12th Aug 2022 11:55am
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Dolphinboy



Member Since: 08 Dec 2009
Location: Bristol
Posts: 2772

United Kingdom 2011 Range Rover Vogue TDV8 Atacama Sand

Mine had similar symptoms. It was a cracked Pax side inlet manifold. apparently they were too flimsy to take the full boost of the twin turbos and were upgraded later. Make sure you get an upgraded version if you need to change.

Oh and don't expect any change out of £1600 for IM change. It requires fuel lines and plugs out etc, so not a quick job.

Post #639416 12th Aug 2022 4:03pm
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SETDV8



Member Since: 30 Apr 2022
Location: Kent
Posts: 13

United Kingdom 2011 Range Rover Vogue SE 4.4 V8 Stornoway Grey

Deep joy!!

Post #639426 12th Aug 2022 5:24pm
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