| My Electronic Park Brake has: |
| had NO trouble at all since purchasing the vehicle |
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51% |
[330] |
| Been a screamer on one occasion |
|
7% |
[49] |
| Been a screamer on many occasions |
|
16% |
[104] |
| Locked on on one occasion |
|
4% |
[27] |
| Locked on on many occasions |
|
2% |
[15] |
| Crept forward on one occasion |
|
0% |
[6] |
| Crept forward on many occasions |
|
1% |
[11] |
| had a combination of all of the related issues above |
|
3% |
[20] |
| had a combination of some of the related issues above |
|
11% |
[73] |
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| Total Votes: 635 |
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stapldm
Joined: 11 Sep 2006
Location: In a queue for diesel
Posts: 809
 
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Thanks for the info TFC. Based mostly on your research, and taking a look at the design of the EPB module, it appears to me that because :
1. Your adjusters were thread locked and therefore thankfully excluded
2. The cables don't stretch
3. The internal design of the EPB means it puts even tension on both cables
that the only reason you could have differences in required torque to turn each hub is due to differences in the friction surfaces and the friction they actually provide.
I have conveniently ignored for now the fact that there may be a physical component failure leading to EPB issues.
In the interests of trying to save myself the time to strip the hubs, I thought I'd see what happened when I tried bedding in without any other work first. Note I followed the instructions to the letter.
First attempt : Got a screamer and had to use foot brake to halt the car before I ran out of car park.
Second attempt : Car came to a controlled halt under EPB control - almost ran out of car park.
Third attempt : Car stopped pretty smartly, wheels locked up and skidded once (unlocked really quickly)
Fourth attempt : Woah! Felt like a real emergency stop - wheels locked four or five times (unlocked really quickly each time).
Fifth attempt: No improvement, so called it a day.
So in my case, it seems to have cleaned up the crud on my linings and given me back my brakes. I'd hate to imagine what the stresses involved in carrying out the bedding in would have had on a faulty/failed component though.
I'll repost if anything nasty happens to me in the next couple of weeks. Give a man a fire and he's warm for the day. But set fire to him and he's warm for the rest of his life.
Terry Pratchett, Discworld
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 Wed Mar 12 2008 11:00pm |
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10forcash
Site Sponsor
Joined: 09 Jun 2005
Location: In the naughty corner.... eligible for parole 2025
Posts: 13632
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Nice one!
Still can't understand where the 'slack' goes though????
I really do think the 'bedding in' procedure may be the preventative medicine in most cases
It's worth noting that the wheel with the least pre clean / adjustment friction was the one with the damaged backplate and therefore the most ingress of muck  for Freelander 2 Diesel, Discovery 3 / RR Sport TDV6 & RR Sport TDV8, Defender (TD5 & Puma) - available Now!
Vehicle modifications, preparation, training and equipment also available 
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| Wed Mar 12 2008 11:55pm |
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DSL
Joined: 11 May 2006
Location: In the Dog House!
Posts: 9159
 
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Forgot to say got my car back from the stealer week ago with a replaced cable loom (which didn't sort the problem) and a clean out/adjustment. Both done under warranty. Honda Dog U better DUCK!!!!!
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| Thu Mar 13 2008 1:37pm |
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stapldm
Joined: 11 Sep 2006
Location: In a queue for diesel
Posts: 809
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Nice photo's - they'll come in right useful when I eventually have to strip mine, thanks 
Is it just possible that in some cases there simply is no slack? Just cables running at max tension in a desperate bid to get some friction on surfaces lubricated with crap?
I've noticed that as mine was slipping it automatically tried to apply more tension to correct itself. If there is enough crap in there to prevent the brake shoe contacting the drum, the clay dust could actually prevent the surfaces bonding, so that would explain combinations of slipping and screamer, and why I ran out of car park at max tension.
Thoughts? Give a man a fire and he's warm for the day. But set fire to him and he's warm for the rest of his life.
Terry Pratchett, Discworld
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| Thu Mar 13 2008 11:36pm |
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iconix
Joined: 19 Nov 2006
Location: 'Sarf' London
Posts: 361
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Just put mine in to the garage for a 'screamer' via LRA - got a '57 HSE replacement car - drives like a completely different vehicle, repaired next week under warranty, got an extra 2 days as the garage don't open weekends  
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| Thu Mar 13 2008 11:44pm |
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10forcash
Site Sponsor
Joined: 09 Jun 2005
Location: In the naughty corner.... eligible for parole 2025
Posts: 13632
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IF there is a layer of crap on the shoes, this would lessen the distance the shoes have to travel, assuming this is removed when the EPB is applied and the 'torque reapply' takes up the slack, this should not cause the cables to over extend... the only reason that comes to mind is if the friction material is extremely soft, and the constant rotation of the drum / disc wears this away in conjuction with the offroad crud then this would reduce the circumference of the shoes causing greater movement before the braking force is applied....
The only way to know this is to get a measurement from a newse of EPB shoes for Freelander 2 Diesel, Discovery 3 / RR Sport TDV6 & RR Sport TDV8, Defender (TD5 & Puma) - available Now!
Vehicle modifications, preparation, training and equipment also available
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| Thu Mar 13 2008 11:48pm |
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shiny moose
Joined: 13 Nov 2007
Location: Capital of Mercia
Posts: 926
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An interesting thread.
As the suggestion is that crud build up at the interface between the friction material and the drum surface is a possible cause of some problems.
Could for use after off road journeys, do you think a small high pressure nozzle fitted in the back plate, which can be feed from a small pump and tank - washer bottle ? would this allow the crud to be washed out ? Silver TDV6 S with sat nav, PTI and Moosed up a bit
"PROGRESS IS MANS ABILITY TO COMPLICATE SIMPLICITY"
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| Thu Mar 13 2008 11:49pm |
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pwadey
Joined: 04 Jan 2008
Location: stoke on trent
Posts: 3
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mines just started squeeking looks like yet another trip to the dealers gettting a bit sick of niggly little things going wrong. vehicle is only 12 months old and already been in 5 times pwadey
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| Mon Mar 17 2008 11:49am |
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robsmith
Joined: 02 Sep 2007
Location: Staffordshire
Posts: 369
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Mine is in at the steelers for the third time. Yesterday I expressed my concern and casually dropped in that the fault appeared each time after heavy rain "might this be a sort of clue". Today a phone call to say its a sensor that's gone for a holiday. Being done under waranteeeeee, and I've been lent a '57 plate GS (no heated seats, only a 1 pack CD) but its far better than a Freeloader...... Rob Smith
Silver rools OK
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| Tue Mar 18 2008 2:08pm |
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mal_NW
Joined: 04 Mar 2008
Location: Garstang, Lancs
Posts: 173
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I have picked mine up on Moday and it is making a bit of a noise when setting off for the first 50metres or so, didn't notice it on the test ride. Do most people use them all the time or is the P mode on Auto OK to use on its own? Also a member of avforums.com
http://www.flickr.com/photos/jmjr/
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| Tue Mar 18 2008 9:31pm |
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craig
Joined: 08 Aug 2006
Location: Home of LR.
Posts: 1987
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Mine is in at the stealers being looked at for the EPB and a couple of other issues.
Finally, got a decent LR replacement vehicle - a TDV8 FFRR
Looking forward to getting mine back, i have to admit.
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| Tue Mar 18 2008 9:43pm |
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AndrewW
Joined: 06 Aug 2007
Location: Saddleworth
Posts: 1074
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mal_NW wrote: Do most people use them all the time or is the P mode on Auto OK to use on its own?
Not a good idea....
http://www.disco3.co.uk/forum/topic16134.html?highlight=pawl
The Park mechanism is virtually a (couple of) peg(s) poking into a gear. It can wear and fracture. OK for flat earth residents not good on hills.  06 TDV6 SE Tonga Green
Mantec Plate (with three "dings"), BCB rope, Hidden winch (hidden in garage...), Webasto timer (in box), TorqTuned ((tee hee)²), Origin b2 (in case), Traffic master jam warner (in expectation), FT8800, Motorola GM360, INTEK H-520+ (in a tangle)
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| Wed Mar 19 2008 1:05pm |
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robsmith
Joined: 02 Sep 2007
Location: Staffordshire
Posts: 369
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Thank goodness for the waranty thing  - I've just picked mine up after its latest visit for the EPB faults.
They replaced a sensor on the gearbox/transfer box - I saw the bill and it made my eyes water.
Thing that gets me is how can a thingy on the gearbox (middle of the car) upset the EPB (back of the car). 
Or am I missing something Rob Smith
Silver rools OK
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| Thu Mar 20 2008 6:49pm |
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robsmith
Joined: 02 Sep 2007
Location: Staffordshire
Posts: 369
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GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Picked my Disco up on Thursday last week after steeeler had had it four days. No faults.
Drove home, no faults.
Tatted around over the weekend, no faults.
Tuesday, driving down to Somerset drop down a couple of cogs coming out of a village, massive clutch slip, BING-BONG, EPB faul on the message centre, yellow EPB fault light on.
Phone steeler to have a moan, eventually get put through to a "man who can" rather than the front desk girl, and we discussed the lot. He was out last week, so had to look at the job card (not filed away yet so he could actually see it) "Hmm, you say this happens a couple of days after you've hit standing water or its been heavy rain, hmmmm, must be water getting into one of the connectors down there somewhere (muttering under his breath), we'd better get it in and have a look"
So its back to the steeler again, another couple of days with one of their cars (let's hope its not a Freeloader...) and see if they can get to the bottom of it this time.
I love the car but not the EPB, the ***** warning light is driving me nutz, and the loss of the revering lights is a real pain - especially when turning round in my brother's yard last night...... Rob Smith
Silver rools OK
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| Wed Mar 26 2008 9:28am |
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