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Slow High Beam Assist
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D4mation
 


Member Since: 29 Jul 2011
Location: Ruralshire
Posts: 593

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Ipanema SandDiscovery 4
Slow High Beam Assist

I think my high beam assist is getting lazy.
At night when traffic approaches it dips almost immediately, but then takes quite a few seconds to revert to full beam, whereas previously it would revert almost straight away. Works fine if I use manual dipping/full beam.

Any thoughts on what may cause this, or should I take it into a garage and get them to sort it.
 MY12 D4 HSE Ipanema Sand  
Post #132740120th Aug 2014 6:55 pm
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Treetrimmer
 


Member Since: 17 May 2014
Location: Billericay, Essex
Posts: 109

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Siberian SilverDiscovery 4

I think you have to be doing a certain minimum speed for the High beam assist to work properly. I think ithe speed is supposed to be about 30 mph, but on my car it needs to be about 60 mph. Does any one know if the operating speed is variable?
  
Post #132740820th Aug 2014 7:03 pm
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ROY_H
 


Member Since: 30 Jun 2014
Location: South Hams Devon
Posts: 368

England 2011 Discovery 4 3.0 SDV6 HSE Auto Stornoway GreyDiscovery 4

Certainly less than 60mph on mine, very unlikely to reach those speeds on devon roads (A38 excepted ).

40 - 50 seems more likely.
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Post #132745220th Aug 2014 8:21 pm
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Gareth
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Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26702

United Kingdom 

I don't like the system personally. I find it dazzles too many drivers.
  
Post #132751220th Aug 2014 10:17 pm
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stick
 


Member Since: 13 Jan 2010
Location: hants
Posts: 592

United Kingdom 2010 LR4 3.0 TDV6 HSE Auto Izmir BlueLR4

turned it off the day I took delivery of the car 98k miles ago and never been tempted to turn it on since...
 d4 HSE  
Post #132763621st Aug 2014 9:32 am
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D4mation
 


Member Since: 29 Jul 2011
Location: Ruralshire
Posts: 593

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Ipanema SandDiscovery 4

I guess it's Marmite then cos I like it - until recently.
Can't be arsed to take it in right now so I'll wait till November when it's 3 year service is due and mention it, along with the squeaky windscreen wiper motor and anything else I can think of - before the warranty expires.
 MY12 D4 HSE Ipanema Sand  
Post #132959925th Aug 2014 11:36 pm
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CUCO
 


Member Since: 27 May 2011
Location: Spain & Oleee!!!
Posts: 609

Spain 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Clean with a soft tissue the the sensor under the center mirror, mine was lazy too and now runs better, much faster and reactive.
  
Post #132963526th Aug 2014 7:40 am
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steveraspberry
 


Member Since: 18 Sep 2011
Location: Nr Sevenoaks,Kent
Posts: 2081

United Kingdom 

+1 for a sensor clean Smile Thumbs Up
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Post #132971926th Aug 2014 11:46 am
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Treetrimmer
 


Member Since: 17 May 2014
Location: Billericay, Essex
Posts: 109

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Siberian SilverDiscovery 4

Partly related to this thread! I've got a 62 reg H.S.E., with A.F.S. Can someone tell me what the 3 little sensors on the lower L.H.S. Of the rear view mirror are for?
I assume one of them is for the Headlight Assist, but what are the other 2 for?
Thanks in advance.
  
Post #133017327th Aug 2014 8:51 am
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Hairy Dan
 


Member Since: 19 Jan 2011
Location: Co. Durham
Posts: 12319

United Kingdom 2016 Discovery 4 3.0 TDV6 Landmark LE Auto Santorini BlackDiscovery 4

I think the others are for auto wipers and auto switching headlamps on Thumbs Up
 Cheers Ian
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Post #133036427th Aug 2014 3:41 pm
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D4mation
 


Member Since: 29 Jul 2011
Location: Ruralshire
Posts: 593

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Ipanema SandDiscovery 4

A bit of an update that could explain my problem.
Just reminding myself how to adjust the headlights for continental driving and I noticed that I had not switched back to driving on the left in the service menu Embarassed
 MY12 D4 HSE Ipanema Sand  
Post #137731621st Nov 2014 6:13 pm
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