Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

Steering rack issue???

First port of call for new members
Post Reply
WelshZ4coupe
Newbie
Newbie
Posts: 9
Joined: Mon Oct 31, 2016 12:48 am

Steering rack issue???

Post by WelshZ4coupe » Mon Oct 31, 2016 1:04 am

Hi guys, hope someone could help.

When at motorway speed traveling straight roads my steering is very twitchy, it's fine any other time just when I'm going over 60mph. It's even fine in the corners, I have checked tyre pressures and I don't use run flat tyres so could this be a steering rack issue.

I have a 07 plate car but here the steering rack issues were with earlier models.

Thanks for looking Karl

User avatar
Mr Tidy
Legend
Legend
Posts: 23608
Joined: Wed Jul 02, 2014 12:18 pm
Location: North West Surrey

Steering rack issue???

Post by Mr Tidy » Mon Oct 31, 2016 3:14 am

From what you have said I don't think so.

Have you checked tyre pressures, how worn are the tyres, and what is the condition of the road where you experienced this problem?

I have found low pressures, worn tyres and HGV ruts all affect the steering.

Oh, and so do worn drop-links! :lol:

I'd look at all of those things before I worried about steering!
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black

WelshZ4coupe
Newbie
Newbie
Posts: 9
Joined: Mon Oct 31, 2016 12:48 am

Steering rack issue???

Post by WelshZ4coupe » Thu Nov 03, 2016 10:32 pm

Yeah the tyre conditions are good and this happens on any road type

firebobby
Lifer
Lifer
Posts: 9529
Joined: Sat Jun 13, 2015 9:09 am
Location: South west Buckinghamshire

Steering rack issue???

Post by firebobby » Thu Nov 03, 2016 10:42 pm

What pressures are you running
BMW Z4 30i 2003 auto 107's Whippy Toledo Blue
Beige M sport seats, wood dash
Toyota MR2 NA 1995
Triumph GT6 1972 (project)
Land Rover Discovery 1994 TDI (Tow car)
Mini 1000 1981

WelshZ4coupe
Newbie
Newbie
Posts: 9
Joined: Mon Oct 31, 2016 12:48 am

Steering rack issue???

Post by WelshZ4coupe » Sat Nov 05, 2016 2:15 am

I've followed what ever the book says, I have standard BMW 18" split rims

User avatar
Machine monkey
Lifer
Lifer
Posts: 11310
Joined: Thu Oct 04, 2012 12:49 pm
Location: In the shire Oxfordshire

Steering rack issue???

Post by Machine monkey » Sat Nov 05, 2016 2:47 am

Sounds like worn control arms/ bushes and drop links. I would get them checked and an alignment check and hopefully all will be well.
My little blue zed is in lots of bits. With lots of things started and not many finished! I may have found the limits of my time and ability!!

Image

pp1600
Member
Member
Posts: 141
Joined: Mon Sep 19, 2016 7:31 pm

Steering rack issue???

Post by pp1600 » Sun Nov 06, 2016 11:09 am

Not had my coupe long but this was an issue also. Any road camber change and the car would try to kill me …

I had the geometry checked and reset. tyre pressures checked. The only play in the front end I could see and feel was the main control arm bushes.

I changed them yesterday for power flex bushes and the difference was noticeable immediately . Would like a bit more castor and toe-in now to give a slightly better feel.

WelshZ4coupe
Newbie
Newbie
Posts: 9
Joined: Mon Oct 31, 2016 12:48 am

Steering rack issue???

Post by WelshZ4coupe » Mon Nov 07, 2016 2:44 am

Ok thanks, bushes sounds a lot cheaper than a steering rack so really hope your right.

pp1600
Member
Member
Posts: 141
Joined: Mon Sep 19, 2016 7:31 pm

Steering rack issue???

Post by pp1600 » Wed Sep 13, 2017 8:23 pm

I initially thought I wasn't on run flats but having inspected them closely I was…. I immediately replaced them with a nice new set of pilot sports and the car is transformed… Having had new bushes, steering arms, geometry, tyres balanced etc … As already been mentioned a hundred times.. check for run-flats and get-rid… I have fallen in love with the z4 coupe again.. I might even buy another( at current prices) for a winter car!! How could non run_flats affect affect insurance prices when the car was trying to kill me with them!!!

Thank you forum...

Post Reply