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Gi
Member Since: 13 Dec 2006
Location: Basle
Posts: 28
  
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Applying the brakes downhill at very low speed (walking pace) calls a radical judder on my front left wheel (reproducible)
AND
the same wheel produces a kind of sound as if it were loose-fitting in right-hand bends!
Brakes or supsension? Any advise  ?
Gi ...this is an Italian, living in Switzerland, trying to speak English...!
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 15th Feb 2007 12:45 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
 
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loose wheel nuts? 
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| 15th Feb 2007 10:41 pm |
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Slimer
Site Moderator
Member Since: 06 Jan 2005
Location: Last Exit to Nowhere
Posts: 16295
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wheel out of balance? The End
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| 15th Feb 2007 11:00 pm |
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AndrewS
Tarquin of the Desert
Member Since: 06 May 2005
Location: Y...... because I can
Posts: 10438
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10forcash wrote:loose wheel nuts?
 In the Beginning there was nothing, which exploded.
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| 15th Feb 2007 11:18 pm |
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nwoods
Member Since: 04 Apr 2006
Location: Southern California
Posts: 563
  
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What kind of surface? If you are sliding faster downhill than your wheels are turning, you are triggering one of the braking systems (could be ABS or DSC or Traction Control or all three)
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| 16th Feb 2007 12:31 am |
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Gi
Member Since: 13 Dec 2006
Location: Basle
Posts: 28
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... no way: All my nuts are tight (  ) and the surfaces were all concrete or asphalt >>> you know, living in Switzerland and driving such a car is not easy these days... aside from the discussion about 'energielabels for cars' and projects to increase taxes for heavy weights, they are closing every 'funny' road... we're doomed to cruise on very Swiss polished surfaces
 ...this is an Italian, living in Switzerland, trying to speak English...!
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| 16th Feb 2007 7:34 am |
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CJS
Member Since: 02 Nov 2006
Location: East Lothian
Posts: 62
  
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I had a similar problem at the rear. It sounded similar to a flat tyre at times and only at very low speed. I telephoned my dealer and he said check the wheel nuts but all were fine. He was concerned and asked me to drop by. After waiting an hour he fixed it. It was a parking brake shoe. I understand there is a cover on the shoe and this was slipping off and getting trapped. Dealer said he has seen a lot of them go like this and it can lead to a wheel seizing up if left! If it is this it is easy and quick to fix.
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| 24th Feb 2007 7:32 pm |
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Gi
Member Since: 13 Dec 2006
Location: Basle
Posts: 28
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CJS wrote:I had a similar problem at the rear. It sounded similar to a flat tyre at times and only at very low speed. I telephoned my dealer and he said check the wheel nuts but all were fine. He was concerned and asked me to drop by. After waiting an hour he fixed it. It was a parking brake shoe. I understand there is a cover on the shoe and this was slipping off and getting trapped. Dealer said he has seen a lot of them go like this and it can lead to a wheel seizing up if left! If it is this it is easy and quick to fix.
... monday 07:00 I will wait in front of dealer's garage to let the 'detail' be checked!
Thanks-a-lot CJS
Gi ...this is an Italian, living in Switzerland, trying to speak English...!
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| 2nd Mar 2007 8:56 am |
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hmarais
Member Since: 23 Mar 2007
Location: Hartbeespoort, North West Province
Posts: 7
 
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I had a problem with the left front wheel braking at low speed. The problem was the DSC system that went bonkers and had to be reset. Test if this is the cause by switching off DSC - my problem disappeared when switched off. Good luck! Only 18% of the roads in Southern Africa are tarred, the rest is Land Rover Country. Or GS country.
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| 23rd Mar 2007 10:37 pm |
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Gi
Member Since: 13 Dec 2006
Location: Basle
Posts: 28
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... a pound's worth  .
Thanks HMARAIS!
Gi ...this is an Italian, living in Switzerland, trying to speak English...!
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| 26th Mar 2007 10:49 am |
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hmarais
Member Since: 23 Mar 2007
Location: Hartbeespoort, North West Province
Posts: 7
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One more thing....I missed the part about the problem when your are going around a bend. I had similar problems with a suspension fault light going on as soon as I was going around a bend. It was the steering angle sensor and ECU that was not correctly calibrated. It feeds a signal into the DSC system, and can cause one or more wheels on ONE side to start breaking. In my case, the dealer had to re-callibrate the steering angle sensor. It works in conjunction with the body control unit (also an ECU that is sitting somewhere) that measures the yaw angle of the vehicle (the rate at which it is turning around its vertical axis through its centre of gravity - see write-ups on aircraft) When the steering angle and the yaw rate is not in synch, the DSC computer calculates that the vehicle is either oversteering (back swinging out = yaw rate higher than indicated by steering angle sensor) or understeering (nose pushing wide= yaw rate less than steering angle sensor.) The DSC then tries to correct the problem by applying brakes to one side of the vehicle to get it to go through the corner in a civilised manner (that is with the nose in front, the back at the back and the driver thinking he is in control). If your steering ange sensor (it sits on the steering column just above the firewall) is out of calibration, the vehicle senses that something is out of synch, and can start to brake on one wheel in a straight line. The braking is intermittend on that one wheel, (mine was the front left wheel) which gives a "shudder" to the car. Because the ECUs are interlinked, it can also cause the suspension to sense that something is amiss and registers the dreaded "suspension fault" warning. Only 18% of the roads in Southern Africa are tarred, the rest is Land Rover Country. Or GS country.
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| 26th Mar 2007 11:48 am |
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Gi
Member Since: 13 Dec 2006
Location: Basle
Posts: 28
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I am worried to death
Do you think I should take a walk home tonight....?
But: Hats off for your detailed knowledge about your left front wheel!
And, thank you again
Gi ...this is an Italian, living in Switzerland, trying to speak English...!
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| 26th Mar 2007 3:26 pm |
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hmarais
Member Since: 23 Mar 2007
Location: Hartbeespoort, North West Province
Posts: 7
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I would not be too worried, as it is not a safety critical thing as long as you take it easy, especially on slippery roads where one would welcome the DSC.  Just switch out the DSC with the button on the dash when you start of, make sure he HDC is NOT switched on until the agent can re-calibrate the sensors and reset the error messages.
How do I know all this?  I bought an insurance write-off that we rebuilded, in the process we took out the whole interior including the dash, stripped the front of the body to the chassis, removed the engine, replaced the front suspension etc. The mechanicals and body was easy, we are still batling with the electronics on the suspension, the dealer can't get it to calibrate the height sensors, as the diagnostic computer picks up that some of the ECUs are not communicating, but it does not say which ones. Only 18% of the roads in Southern Africa are tarred, the rest is Land Rover Country. Or GS country.
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| 27th Mar 2007 9:17 am |
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