Member Since: 30 May 2014
Location: Lancashire
Posts: 98
Accelerated Cam Belt degredation using stop start
Hi I have recently taken delviery of my MY2015 SE Tec .... great, however I have concerns about the eco stop start system ....... having seen cam belt failures at 15k on short journey stop start commercial vans
will this constant stop starting effect the 100k std cam belt longevity???? Have the MY2015 belts been upgraded??? Also .... does the constant stop starting effect engine longevity generally. The commercial vans I am referring to stripped the teeth of the belt ..... apparantly when a diesel engine fires ... it deos so quiet violently transferring allot of torque suddenly to the valve train....
Currently I have to switch off eco mode every time I use car....annoying....although I have noticed if you are very ginger with the brakes you can actually stop with the engine running in eco mode.....
Any thoughts.... MY 2015 Se tec SDV6 auto
Extras added:
Electronic diff
Meridian 17 speaker audio
Cool cubby box
Full size spare
Tow bar
Surround Cameras
Black rear tints
Cosmic grey interior panels
29th Sep 2014 12:02 pm
Simes
Member Since: 10 Apr 2014
Location: Leics
Posts: 150
My thoughts are that it's designed for it - and not a first generation stop start any more, and it's under warranty!
29th Sep 2014 12:07 pm
D3Savage
Member Since: 30 May 2014
Location: Lancashire
Posts: 98
Hmmm my experience is slightly different.........as long as the car makes it outside the 3 year water shed ........ they usually care not ......... If the belt has been beefed up ... then I would have more comfindence ..... MY 2015 Se tec SDV6 auto
Extras added:
Electronic diff
Meridian 17 speaker audio
Cool cubby box
Full size spare
Tow bar
Surround Cameras
Black rear tints
Cosmic grey interior panels
29th Sep 2014 12:14 pm
Simes
Member Since: 10 Apr 2014
Location: Leics
Posts: 150
I agree with what you are saying - but I think if it failed at (say) 20k after 3.5 years, and was fully serviced and not sure a belt change, JLR have been quite good with other problems in terms of contributing to the fix.
I'd let the car run as designed and not try to fight it.
29th Sep 2014 12:17 pm
Streffie
Member Since: 30 Mar 2014
Location: Midlands
Posts: 171
Ask your dealer to turn the stop start, off, they can switch the default to opposite to factory standard
2nd Oct 2014 12:36 am
Brian_DL13
Member Since: 25 Aug 2013
Location: Teesdale
Posts: 1418
When I bought mine, the sales rep told me that various bits (inc battery, starter motor) had been beefed up. I suspect the cam belt might be one of them.
Ask your dealer to turn the stop start, off, they can switch the default to opposite to factory standard
Can someone confirm that this is correct - hopefully a simple alteration to CCF file?
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
2nd Oct 2014 8:40 am
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
I cannot comment on whether dealers can or will do this but there is a parameter in the CCF that enables or disables stop-start. For example, for the Australian market the CCF setting is disabled.
Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 09 Mar 2007
Location: hants
Posts: 2143
my uninformed gut feel is that stop start is not great for engines
starting is stressful for the mechanical (and maybe some electrical ) components and is certainly not worth it when weighed up against the very small benefit in fuel saving
I believe it was developed as a 'work around' to lower measured CO2 outputs and increase the 'urban' figure on the mpg tests
and on a practical note, I personally find it a pain in the ar5e and it makes me feel disconnected and lacking control of the vehicle, therefore its usually switched off (on the RRS, don't have it on the D4)Illegitimi Non Carborundum
Last edited by sacimiddx on 2nd Oct 2014 12:30 pm. Edited 1 time in total
I look forward to hearing that you have edited the CCF file on your RRS Paul.
If stop/start couldn't be disabled in this manner it might well stop me from buying a D4 in due course.
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
2nd Oct 2014 9:58 am
sacimiddx
Member Since: 09 Mar 2007
Location: hants
Posts: 2143
Nigel
will be in there with the soldering iron this weekend
Paul
PS its not a great hardship pressing the little disable button just an unnecessary nuisanceIllegitimi Non Carborundum
2nd Oct 2014 12:16 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
I have no problem pressing the button but the bright warning light it leaves you with is a bit daft.Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 09 Mar 2007
Location: hants
Posts: 2143
agreedIllegitimi Non Carborundum
2nd Oct 2014 12:30 pm
Brian_DL13
Member Since: 25 Aug 2013
Location: Teesdale
Posts: 1418
sacimiddx wrote:
Nigel
will be in there with the soldering iron this weekend
Paul
PS its not a great hardship pressing the little disable button just an unnecessary nuisance
It could do with the button being on the wheel, rather than having to look down to press it.
2nd Oct 2014 1:39 pm
Hairy Dan
Member Since: 19 Jan 2011
Location: Co. Durham
Posts: 12319
Guys I was really against having a car with start/stop probably because everybody says stop/start is crap etc But, after driving it for a couple of weeks now it is really unobtrusive and to be honest I really don't notice when it stops now as the operation of stopping and starting is seamless and it really isn't such a big deal Cheers Ian
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......... If the belt has been beefed up ... then I would have more comfindence ..... 
