Single tick on turning

B

Bluebottle

New member
Hi all, very odd thing just noticed with my 2016 MY V8 AWD - it gives a single metallic sounding click or tick when turning through about 90 degrees at fairly slow speed. Roundabouts seem to make it happen most, but not on all of them. Sounds like it's coming from the back. What could it be?

Are these cars known to crack springs or is this an exhaust or diff issue do you think? Trying to think what else could give a noise like that intermittently.
 
haven’t heard of any spring issues but have heard of diff noises and brake back plates causing noises. Nothing quite like you describe though. Might be worth having a look underneath and changing the diff oil as a precaution?
 
If it's only a single click it's more likely some bracket or heat shield getting snagged when you turn.
 
Thanks both - I might have to crawl underneath and have a look then.
According to the Jag service history the rear diff oil was done in October 2019, I'd hope it doesn't need doing again that soon?!
 
Bluebottle said:
Thanks both - I might have to crawl underneath and have a look then.
According to the Jag service history the rear diff oil was done in October 2019, I'd hope it doesn't need doing again that soon?!
Click to expand...

Rear diff oil is every 4yrs however mine was black and filthy after 4yrs and 29k miles so will be getting it done more often.
 
simpleR said:
Rear diff oil is every 4yrs however mine was black and filthy after 4yrs and 29k miles so will be getting it done more often.
Click to expand...

Thanks simpleR - I'll be doing that next year then, will be probably less than 29k miles since its last change though!
 
Mine is here for reference.
https://www.ftypeforums.co.uk/viewtopic.php?f=21&t=5575#p56668
 
For reference; I had my brakes dust/debry shield come loose and it was a constant metal on metal scraping noise. Really annoying. I just jacked the car up and cable tied it back into place as it appears that it's originally riveted in place. Originally I thought it was a wheel bearing on its way out.
 
My brake shield was held in place by three Torx bolts which unscrewed themselves on the right side and made a screeching noise when I turned left. My indie sorted it out nice and cheaply ....
 
Exactly the same experience as scm with RHS shield.
The service supervisor at my main dealer had a new one fitted while I wait at no charge, as a gesture of goodwill.
…of course he no longer works there, for doing rash and profit eating things like that.
 
I would take the car to a flat car park with some space, ideally with a passenger and have them outside for some diagnosis. Do some left and right turns, back and forth and determine which corner it's at and what specific action triggers it. If it's just on left or right look for something loading up like a brake caliper, driveshaft. If both then driveline. See if it is under load, neutral load or overun.

Personally I doubt it's a dustshield as mine went on both sides over recent years and these give a constant or intermittent squeal as they rub the disk if the blind rivets holding them on break. (but super easy to eliminate by just reaching around the wheel when on lock)
Pads tend to squeal but can click if loading up. UJ's often click when loaded by turning and diffs can do odd things, but mainly rumble, judder, etc. Next I'd be looking at wheelnuts, tyre wear, loose or worn suspension bushes, shock absorbers, etc.

Bit of diagnosis first
 
Thanks everyone. I had a quick look under there and all I've seen was what seemed a lot of surface corrosion (guess they're too much in bed with Land Rover ;) ).

I think I will need to get under when it's cold to have a proper look...
 
Right - I had a proper crawl under the car this morning. For a vehicle that trumpets its aluminium construction there is an absolute metric ton of rusty bits at the back end, some of them are properly flaky and it looks awful, how much would it really have eaten into profits to do some proper *&%$ing rust-proofing :x

Anyway, rant over, I can't see anything snagging, the CV boots look a bit grimy but nothing leaking. Without jacking her up I can't tell if there's play in any suspension or axle components. I think next step will have to be driving in figures of eight in a car park with a willing volunteer to listen out for the problem.
 
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