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dhallworth



Member Since: 10 Oct 2011
Location: Glasgow
Posts: 3086

United Kingdom 2012 Range Rover Autobiography TDV8 Baltic Blue

I've used Smith and Allen cold climate power steering fluid in 2 of my L322's and have put it in a friends car too, all with no adverse effects.

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Post #705756 30th Nov 2024 1:13am
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

Thanks David,

I didn't think the fluid would have that much to do with it but just wanted to try genuine out of interest and as a 'belt and braces' kind of thing Thumbs Up

What bugs me is I still have a bit of a whine sound when turning the steering stationary.

To me this means there is air in the system, it never goes away so air must be getting in somewhere.

This could explain why the effort changes from one drive to the next?

Post #705762 30th Nov 2024 9:32am
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knares



Member Since: 22 Jun 2017
Location: Perth WA
Posts: 739

Australia 2005 Range Rover Vogue 4.4 V8 Zambezi Silver

in my opinion, if air is getting in, which i doubt, there must be a restriction between the reservoir and the pump.
the sound you are hearing could be the pump screaming because its not getting fluid.
this could be because the hose between the reservoir and the pump is not fitted correctly or it has fallen to pieces internally and is blocking supply, this could be intermittently giving you the different situations you describe
good luck RR 2005 4.4 petrol
Any spelling mistakes are the fault of spellchecker
Previous MG J2, CITROEN light 15 x 2 gone unfortunately
Present MERC 180e, RANGE ROVER L322, JAGUAR XJS, MERC 280SE, MG F, JAGUAR S-Type 6v 2003, jaguar s-type 8v 2004, Ford Cougar

Post #705773 30th Nov 2024 12:16pm
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

Great thoughts Knares,

I have already had the feed hose from the reservoir down to the pump off the car, it's in good order and was correctly routed when removed and also when refitted.

I had also thought about an internal restriction in it so passed my boroscope camera through it, it was perfect with no signs of internal delamination.

A great thought and suggestion though so thank you!

Has anyone heard of the high pressure banjo going in to the rack coming loose?

Post #705777 30th Nov 2024 1:04pm
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

Well, it's been consistently... awful today.

Heavy steering, poor ride and engine.

Just when I thought I was making genuine progress. Rolling Eyes

Post #705801 30th Nov 2024 9:12pm
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

More late night messing,

I've pulled the BCM/GEM out of its recess under the passenger seat and measured the voltage at engine idle to the servotronic valve. (Pins 9 & 11 on the biggest Black connector I believe?)

I have a reading of around 7 volts. Does this seem correct for max assist?

Click image to enlarge


Obviously this is not the correct way to measure a PWM signal but something is better than nothing?

I wasn't able to test it whilst driving as it's too late in the evening now to rig up something suitable.

I did also disconnect the BCM/GEM completely and remove it from its casing to inspect the board for corrosion or blown circuitry. All is visibly OK!

I also checked the wiring plugs for corrosion and damage, all ok there too.

Post #705807 30th Nov 2024 11:01pm
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

Can someone with suitable diagnostics and a 2006-2009 pre LCD dash L322 please check this out for me?

Read the live values in the BCM and see if your Diagnostic tool is able to display the voltage and amperage outputted to the servotronic valve.

It bugs me that autel/SDD just display 0v and 0 amps on this RR of mine.

I'm sure on previous ones it did provide a volts/amps figure or at least a % duty cycle for the PWM signal.

Post #705882 1st Dec 2024 11:44pm
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

So for anyone still reading, I've just done the test where I feed 12v direct to the servotronic valve bypassing the BCM output.

The steering was a lot lighter, almost like normal but not quite.

I'm confused now, what does this tell me?

Post #706048 3rd Dec 2024 9:23pm
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Merchy



Member Since: 14 Feb 2021
Location: North Wales
Posts: 1187

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

Yes we are still reading, thinking back to when Haylands drove your car, a thought struck me. I have only ever driven my 2006 td6 and my 2007 Tdv8 3.6, and will admit there are days when I think the suspension has become a little 'crashy' and response seems to have been 'dulled down' then the next day I climb in and the car(s) seems sublime in handling and response.
I admire your perceverance, it must be infuriating at times. Thumbs Up

Post #706135 5th Dec 2024 8:58am
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

My original RR was great during its first year with me, it always drove great and felt consistent.

I cannot recall ever feeling like it was having an off day myself!

Since you have a PFL 3.6 TDV8 Merchy would you kindly consider looking at the servotronic valve output in the BCM using diagnostics (assuming you have a suitable tool)

Mine shows 0v on SDD and Autel despite the fact I've measured the voltage as 7v at the BCM.

Still struggling along yes, 6 years and 5 RRs later since my original

Post #706142 5th Dec 2024 10:00am
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Andra



Member Since: 22 Sep 2015
Location: Scotland
Posts: 68

United Kingdom 

I don’t know if this information is useful but someone with a current generation Mini had all sorts of driveability issues including intermittent strange steering and the fault was cured after fitting a new outside temperature sensor . There are of course many sensors can cause issues .

Post #706145 5th Dec 2024 10:06am
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alanm_3



Member Since: 19 Feb 2011
Location: my House, unless I’m not at home, in which case I’m somewhere else.
Posts: 6729

Scotland 2017 Range Rover Autobiography SDV8 Loire Blue

Maybe time to go back to Bentley? Whistle Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

Post #706146 5th Dec 2024 10:37am
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Merchy



Member Since: 14 Feb 2021
Location: North Wales
Posts: 1187

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

@MarianaW I have an IcarSoft tool... BUT... it is currently on loan to a friend, will try to get it back and have a look at the values before I go back to sea

Post #706148 5th Dec 2024 11:45am
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MarianaWestminster



Member Since: 14 Jun 2018
Location: UK
Posts: 666

United Kingdom 

That would be very helpful and most appreciated Merchy, thank you.

Not thought about the external temperature sensor but I'm happy to look into anything.

It seems to report the outside temp correctly on the dash?

As for Bentleys I've already owned a CGT but do keep looking at late facelift Arnages...

Post #706193 5th Dec 2024 9:31pm
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Andra



Member Since: 22 Sep 2015
Location: Scotland
Posts: 68

United Kingdom 

The temp sensor is probably ok if it shows the correct temperature

Post #706205 5th Dec 2024 11:56pm
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