Member Since: 12 Jan 2015
Location: Gloucestershire
Posts: 52
Towing CCF - does it effect suspension
Have tow bar and electrics on my D4-2010.
Understand you need to change setting in the car when the towbar fitted.
Does this setting change anything on the suspension as well as the obvious (parking sensors and lights etc)
I'm having issues when I'm towing where car feels like I'm on a boat (makes me and the kids feel quiet sick)
Does the enabling of the towing in the CCF alter something on the suspension when my 13 pin connector is connected. All lights seem to work fine.
Any thoughts?Loving my D4 HSE -MY10......!!!!
19th Aug 2017 11:47 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72775
Might be worth checking the harmonic dampers under the rear bumper are free, that would explain the sea sickness.
20th Aug 2017 6:49 am
kirkyworld
Member Since: 01 Mar 2016
Location: Northampton
Posts: 566
Might be worth checking your nose weight as the car will adjust the suspension dependant on load?
20th Aug 2017 7:23 am
Russell
Member Since: 24 Aug 2007
Location: Kent
Posts: 10564
DSL wrote:
Might be worth checking the harmonic dampers under the rear bumper are free, that would explain the sea sickness.
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Might be worth checking your nose weight as the car will adjust the suspension dependant on load?
And tyre pressures, mines a bit bouncy unless I raise them.
20th Aug 2017 10:50 am
Dboss
Member Since: 12 Jan 2015
Location: Gloucestershire
Posts: 52
Hi all
I've check the tyre pressures all around etc.
yes I noticed those dampers when under the car - did wonder what they were for until recently - but the boat like ride is only when the caravan attached, but I will check they're swinging freely (so to speak).
nose weight being run at 95Kg as the caravan has nose weight limited to 100KgLoving my D4 HSE -MY10......!!!!
20th Aug 2017 10:50 pm
BrettKaz
Member Since: 11 Nov 2013
Location: Canberra
Posts: 209
Washwipe wrote:
kirkyworld wrote:
Might be worth checking your nose weight as the car will adjust the suspension dependant on load?
And tyre pressures, mines a bit bouncy unless I raise them.
Also depends how much luggage + people (weight) in the back of the car. I run Pirelli all season with max psi of 50 at 47psi with 270kg ball weight and about 40kgs plus kids 90kgs in the back.
21st Aug 2017 1:12 am
LIAMMCL
Member Since: 27 Aug 2013
Location: Northumberland
Posts: 404
We recently drove 8 miles with the caravan in tow before I could pump the tyres up to max load pressure. Huge difference and we were also starting to feel sick beforehand.
21st Aug 2017 8:07 am
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
I also run 46psi in the rear and 38 front when fully loaded with caravan.
21st Aug 2017 4:42 pm
al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10296
^^^ have you checked the max presure rating on the tyre sidewall? I ask as if you have 46PSi at cold, that could be up over 50 when hot. I know my (budget) spare has 49PSi as its max pressure rating.
46 seems awfully high. 41 used to be high enough on my old tyres. I never needed to increase the fronts.
AlVolvo XC90 B5 Plus Dark
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21st Aug 2017 4:59 pm
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
Ops was a typo, should have said 43 rear, which is what the sticker on the door says for full load. Tyre states max is 50.
21st Aug 2017 5:10 pm
al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10296
be carefull as I posted about this in another thread:
I usually increase to 41psi when towing, but after finding that running on 275/45/21's a better ride was gained by running at 39psi (these being cold PSi numbers). I just happened to check the pressures (via the dash) after a couple of hours towing, so hot tyres, and they were are 45psi - so 6PSi up. Didnt realise it was that much of an increase.
so if you are at 43 cold, I think you could be close or over 50 when hot.
AlVolvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD
21st Aug 2017 5:22 pm
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
Thank you Al - that's a very good point
21st Aug 2017 10:29 pm
BrettKaz
Member Since: 11 Nov 2013
Location: Canberra
Posts: 209
Thanks Al
21st Aug 2017 11:01 pm
Dboss
Member Since: 12 Jan 2015
Location: Gloucestershire
Posts: 52
Mmmm that's interesting.. so same must apply to the caravan tyres whichis concerning as that say run at 32PSI, but their max is 40PSI..!!
I will check Tyres pressure after a run and they're warmed upLoving my D4 HSE -MY10......!!!!
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