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Discussion Starter #1
Evening all<div style=": rgb251, 251, 253;">First of all thank you for letting me join.

I have a 2013 model SD4 Pure 40k on the clock now



Had some problems recently so thought this was probably the best place to grab the advice from some knowledgeable people, especially as the dealership can't seem to "find a problem"


Reza
 

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Hi and welcome,
Wealth of knowledge on site as roofchop says post your questions
 

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Discussion Starter #5
hi and thank you guys,

the problem i am having is that i bought an accident damaged Evoque, changed most parts needing to be replaced and found out the steering rack is faulty as it wouldn't return to centre when turning the wheel in any direction/angle.


so decided to changed the rack with a second hand one today. Spent 6 hours taking a the rack out and replacing it with the used one.


after staring the car the rack started to make load noise which i didn't have before. jacked the car up again and found that the belt transferring the power from the electric motor to the warm gear slips as I turn the steering wheel as if the belt has no tension. now given that you can't adjust the tension of the internal rack belt. i am wondering whether this issue is the rack it self or if i have to code the rack as it was a second hand one from another Evoque.


many thanks guys...
 

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I bought the Vident Ilink 400 scan tool.


It has steering angle sensor calibration function.


Maybe buy one or borrow one to see whats going on.


Or get a mobile mechanic to come out and scan the car.



Dave
 

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Discussion Starter #7
Thank you Dave

I have spoken to the LL specialist and they said it should be plug and play no coding is required. So I guess back to square one again


I have to purchase another rack and replace it.

Cheers
 

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If the belt slips then the teeth on the belt must be stripped, if this is the case I imagine the ball-race was seized or damaged in that rack before you bought it.

Check the drain plug on the bottom of the motor/gear housing if the centre is recessed the rack is toast.
 

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Surely the used rack you bought has a warranty of sorts?
They should replace or refund.
If not can you make one good un from the two you have?


Buy a decent scan tool anyway, you will need it for other stuff!
Dave
 

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Discussion Starter #10
Hi Dave
I have now purchased another rack from a car that wasn't damaged. Tho I just spoke to a part specialist and they said if you buy a new one (£2800) it's a plug and play as it's blank however if I fit a second hand (£400) rack you have to program it as it would have the old chassis number registered with it!

I will defoI need a decent scan tool anyway as I am sure I will need it in the future.

In the mean time I will have to find a place to see if they can reprogram the used rack. Any recommendations?

Many thanks
 

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Discussion Starter #11
Hi guys, just a bit of an update. I swapped the steering rack wheel today and it all seems fine now. No programming or coding was needed. I hired a ramp in garage in mk for £60 for a day and did it in 5hr.

The only other issue I have with this car now is when in sharp turn going forward or back the rear wheel start to slip. It feels like it's struggling for traction, I spoke to a 4x4 specialist and he said it's a Heldix unit apparently it should be serviced or could be completely gone and may need replacement!

Oh I regret selling the 320d BMW...
 

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Hi Reza_sama.

The Haldex unit may be fine, but you never know it.


From how you descibe it , it must be your rear differential locked constantly.
Although it is not lockable, it's open .


So it must be some mechanical friction , perhaps lack of oil or maybe a damage of a teeth.
Maybe it was left unsed for a while with no oil and degraded.


Service it. Buy service kit for rear diffs, change the oil.


I see you are skilled, you should be able to do it.


T.
 

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Discussion Starter #13
Hi Tom, the was stationary for about 6month so your point could be valid. I have booked for a garage to check it out next week. I work full time and with a little one it's hard to find a time. I will update you guys next week.
 

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Discussion Starter #14
Hi guys just a bit of an update. After few months and a lot of headaches I decided to change the diff and the Haldex which I bought 2nd had. Spent the day changing it in my mates garage, and after all that pain it paid off no more wheel skip when turning. Cheers
 

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Hi all,
My steering rack motor is broken , I was wondering if u buy a used one will it work or I have to buy new one?
Thanks
 

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Mechanically it should but it may need coding in I'm not sure
 

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You can't fit a used one as they need coded to the car and coding can only be done once. Known problem. See Donna's thread on getting it replaced out of warranty.

 
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Ah I wasn't aware they could only be coded once? Yes see Donna's post, common fault, actual recall in Canada and should be replaced foc
 

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You can't fit a used one as they need coded to the car and coding can only be done once. Known problem. See Donna's thread on getting it replaced out of warranty.

Sometimes I think my original useful post on steering rack failures isn't appreciated as much as it should be! :unsure:
Perhaps a mod could include a link in the locked post in case the info helps people?

It certainly was timely for @Donna ;)
 
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