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Restricted performance warning
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Nicks vw
 


Member Since: 25 Oct 2015
Location: Sheffield
Posts: 7

United Kingdom 
Restricted performance warning

Hi thanks for add just got disco 4 and got the restricted performance on dash orange warning sign long shot but any ideas please?
  
Post #19346198th Apr 2018 3:19 pm
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Navigator
 


Member Since: 17 Mar 2010
Location: Stay at Home. One of the lives you save could be your own.
Posts: 5103

Scotland 2015 Discovery 4 3.0 SDV6 SE Auto Causeway GreyDiscovery 4

That depends on whether the performance IS affected or not. It happens intermittently on my D4 when on cruise control and starting uphill at over 50mph whole towing. No effect on performance. Some people blame it on a faulty fuel pressure sensor.
 A vaccine does not stop you catching a virus, or passing it on, or getting ill from it, really ill. It does reduce the likelyhood of you dying when really, really ill. Stay Alive - KEEP AWAY FROM PEOPLE.  
Post #19346228th Apr 2018 3:27 pm
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Disco neil
 


Member Since: 26 Feb 2018
Location: Kent
Posts: 125

United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

I had the restricted performance on my d4 recently. Turned out it had a split inlet manifold. What’s the Milage? Apparently the right side fails around the 70,000 mark and 110,000 for the left. Pop the engine cover off and have a look for some very fine cracks.
  
Post #19347218th Apr 2018 9:15 pm
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gvw
 


Member Since: 16 Jan 2012
Location: South Yorkshire
Posts: 872

England 2009 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Also what year.
Could be CSOV?
https://www.disco3.co.uk/forum/restricted-...60401.html
https://www.disco3.co.uk/forum/csov-sticki...63490.html
  
Post #19347248th Apr 2018 9:44 pm
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Rmacaul
 


Member Since: 05 Apr 2017
Location: Angus
Posts: 136

Scotland 2009 Discovery 4 3.0 TDV6 XS Auto Indus SilverDiscovery 4

You could try getting fault codes read. My restricted performance was the map sensor. Tried cleaning but had to buy another.
  
Post #19347268th Apr 2018 10:13 pm
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Navigator
 


Member Since: 17 Mar 2010
Location: Stay at Home. One of the lives you save could be your own.
Posts: 5103

Scotland 2015 Discovery 4 3.0 SDV6 SE Auto Causeway GreyDiscovery 4

I have had codes read five times now - but there is nothing recorded.
 A vaccine does not stop you catching a virus, or passing it on, or getting ill from it, really ill. It does reduce the likelyhood of you dying when really, really ill. Stay Alive - KEEP AWAY FROM PEOPLE.  
Post #19348029th Apr 2018 10:15 am
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cosmic329
 


Member Since: 17 Dec 2013
Location: Chichester
Posts: 177

England 2016 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Had this on mine a few weeks ago and it was awful to drive with 'real' restricted performance. LRA read the codes and it was the first stage MAP sensor. Could also be a split manifold as others have said but you'd need to check the codes and do a bit of diagnosis to be sure.
 Discovery 4 SDV6 HSE '65 - Projects in planning phase!

Discovery 4 SDV6 HSE '61 - gone
Discovery 3 Tdv6 HSE '56 - gone
Defender 90 Tomb Raider '51 - gone
Defender 110 XS '54 - gone 
 
Post #19348159th Apr 2018 11:16 am
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Clubber
 


Member Since: 11 Aug 2008
Location: Teesside
Posts: 372

United Kingdom 2014 Discovery 4 3.0 TDV6 HSE Lux Auto Loire BlueDiscovery 4

I wish I'd seen this video before I had my issue resolved. If you've got an IID tool, it's got to be worth a try to self diagnose.

 Bri

D4 HSE Luxury 
 
Post #19348269th Apr 2018 12:14 pm
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Navigator wrote:
I have had codes read five times now - but there is nothing recorded.


Who is reading them? A dealer or someone with a scan tool? It's possible if it's someone other than a dealer that they're not viewing the "pending" faults which is where many of the restricted performance errors hide. For the IID Tool you need to go into the settings and tell it to show "pending" faults as an example.
  
Post #19348439th Apr 2018 1:25 pm
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Navigator
 


Member Since: 17 Mar 2010
Location: Stay at Home. One of the lives you save could be your own.
Posts: 5103

Scotland 2015 Discovery 4 3.0 SDV6 SE Auto Causeway GreyDiscovery 4

In my case it is the staff at a main dealer. Their D3/4 expert (who now wears a suit) also came and did it with no further success. We have decided whatever it is must be a bit like the "open bonnet" type of warning. Appears on screen but no record made.
 A vaccine does not stop you catching a virus, or passing it on, or getting ill from it, really ill. It does reduce the likelyhood of you dying when really, really ill. Stay Alive - KEEP AWAY FROM PEOPLE.  
Post #19348479th Apr 2018 1:46 pm
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Many of these errors clear when the engine is turned off and thus, if you don’t get the reader on it when the error is showing, no evidence remains annoyingly.
  
Post #19348899th Apr 2018 4:25 pm
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Danshort86
 


Member Since: 22 Aug 2016
Location: Manchester
Posts: 44

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Indus SilverDiscovery 4

I get this intermittently. It appears when I fill up, get the car cleaned or it rains heavy. Mine is due to a faulty fuel sensor.
  
Post #193538611th Apr 2018 6:50 am
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