Hello.

While I sit here in the middle of the night looking after my newborn daughter I thought I would ask about a knocking noise I hear from the front of my 2009 TDV8 pre facelift ffrr. It only happens when turning at close too or full lock, 1 or 2 loud and deliberate clunking/knocking noises.

Guessing something is worn or has failed but it doesn’t seem to affect the ride or handling when driving normally.

Will get it checked out but would like to know the possibilities for now, even read it could be something to do with bolts not being tight enough but I find that a little odd!

Any suggestions welcome, hoping it’s not a major issue and just a service item of sorts.

The PAS pipes can knock when held on full lock as it's overloading the pump.

If it were the tie rods it would do it all the time. Christian.


Current Cars
2011 Range Rover Vogue SE
2020 BMW M4 Competition
2019 BMW X4

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Would that happen only when on full lock? It can happen at a few different points when turning the wheel from memory but defo more when closer to full lock.

It’s quite a loud sound.

Tightened a bolt on the control arm that appeared to be slightly loose but still a load knocking noise on or near full lock (mainly when turning right). The search goes on as all looks good and quite new in every aspect of the front suspension.

Could be from a lot of places, drop links are always a popular source, you can disconnect one, move it out the way and try it, if noting else it will eliminate the drop link and ARB bushes...  Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
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Good advice. Thanks.

I assume you have tried the CV joints for play? The outer will knock on full lock when turning at low speed under power. MOT failure too.

I think they are ok (everything we looked at looked ok!). But will check again.

Not sure if they’re a similar set up to a D4 but could be the steering lock stops on the lower arms a drop of grease normally helps

Had the car looked at again and the drivers side front lower arm subframe bolt was loose, was missed in the first inspection somehow. Replaced the bolt and nut (both oem) to the correct nm and the knock has gone. Not sure what was wrong with the previous bolt to stop it tightening correctly, guessing it’s original so quite old but the bolt itself looks fine, the nut was quite rusty so perhaps the culprit. Will clean up the bolt and put it in my spares box. 2009 pre-facelift 3.6 TDV8.