Home > Technical (L322) > Help me out with the suspension on my 'famous' 4.4TDV8 L322! |
|
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3164 |
I'm on new shocks all round and it's still a bit harsh over small road faults but I think this is just how they are. It was better in this respect on the old shocks ( 170k miles) but the dynamic handling at speed is better with the new ones so I prefer this compromise. Don't just replace one side - do them in pairs. Also I suspect the height sensors which also incorporates accelerometers may contribute to a poor ride if the pivot gets sticky / stiff so it may be worth going round eack one, detatching the arm end connector and seeing if the pivot is stiff. 2012 TDV8 Vogue (L322) |
||
5th Jun 2024 11:22am |
|
mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7773 |
The accelerometers are behind the front wings and in the spare tyre well. The height sensors only send height, but to 2 systems so 6 wires, but they need to be free, as you say, as height taken into account.
|
||
5th Jun 2024 12:13pm |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3164 |
They may send the speed of height change to the ECU as the sensor is measuring the motion of the suspension i.e the terrain under the wheels whereas the body mounted sensors are measuring the motion of the mass supported by the suspension. 2012 TDV8 Vogue (L322) |
||
5th Jun 2024 1:06pm |
|
telly-addict Member Since: 22 Mar 2019 Location: Morayshire Posts: 138 |
Did you do a calibration on the Adaptive after changing the shocks..? Cam 2011 TDV8 Vogue in Stornoway Grey |
||
12th Jun 2024 8:24am |
|
GraemeS Member Since: 06 Mar 2015 Location: Wagga area Posts: 2455 |
The height sensors do not incorporate accelerometers. |
||
12th Jun 2024 9:15am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3164 |
Yes 2012 TDV8 Vogue (L322) |
||
12th Jun 2024 10:04am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3164 |
The rateand direction of height change is likley read by the ECU and this together with the amount of height change = acceleration. 2012 TDV8 Vogue (L322) |
||
12th Jun 2024 10:07am |
|
GraemeS Member Since: 06 Mar 2015 Location: Wagga area Posts: 2455 |
Yes, wheel/suspension acceleration as calculated by the CVD ecu, but the sensors themselves don't incorporate an accelerometer. |
||
12th Jun 2024 11:27am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3164 |
I think also the body mounted accelerometers just detact braking, acceleration and cornering. 2012 TDV8 Vogue (L322) |
||
12th Jun 2024 11:30am |
|
Bartdon56 Member Since: 01 Sep 2020 Location: Birmingham Posts: 4 |
I have a 3.6ltr late 2007, and my suspension seems a little harsh, I don't remember it being like that. So following this post for ideas on the problem. |
||
13th Jun 2024 10:33am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3164 |
2007 was before the variable damper system so the obvious places to look at are tyre type ( AT tyres have stiffer sidewalls) tyre aspect ratio and tyre pressure. 2012 TDV8 Vogue (L322) |
||
13th Jun 2024 11:56am |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis