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Steering issue at highway speeds
- road warrior
- Senior Member
- Posts: 2287
- Joined: Wed May 23, 2018 2:12 pm
- Location: Burton On trent
Steering issue at highway speeds
the rubber joint you speak of, is that no 8 ?
If you ever think I'm off my rocker.. Just put me back in it and walk away... It's the kindest thing
My wife says I never listen - or something like that.
gone but not forgotton -Mean Steve - made a sound like a bear with his nuts in a trap.
My wife says I never listen - or something like that.
gone but not forgotton -Mean Steve - made a sound like a bear with his nuts in a trap.
- Jakg
- Member
- Posts: 367
- Joined: Thu Mar 29, 2018 12:36 am
- Location: Suffolk
Steering issue at highway speeds
Do you have any more information on this? All the pictures online show a ball joint both at the subframe and hub end with a regular bush at the back, as per the E46 and most other cars.
- Bad_Pritt
- Senior Member
- Posts: 2725
- Joined: Fri Jun 29, 2012 3:51 pm
Steering issue at highway speeds
No, number 2 in the second diagram
- Bad_Pritt
- Senior Member
- Posts: 2725
- Joined: Fri Jun 29, 2012 3:51 pm
Steering issue at highway speeds
So, I replaced the droplinks, wishbones and stabilizer rubbers. I got an alignment and turns out that the tie rods have quite a bit of play. So I ordered a set of those after all. The steering definitely improved, but it’s not as sharp as I’d like it to be. I’ll keep you posted on the progress
- Markos_Z4
- Member
- Posts: 180
- Joined: Thu Mar 15, 2012 9:50 pm
- Location: The Netherlands
Steering issue at highway speeds
what wheel size do you have at the front ?
my z4 has 140K KM i have 9J wheels at the front . . .
i change all the parts on the pic my steering feels like brand new right now
best thing i change was the swaybar front rubbers with Powerflex polyurethane bushings
my z4 was all over the place on the highway . . . now i can drive with no hands on the steering wheel
if i turn right and take my hands of the steering wheel , the steering wheel will go automatic returned to center point
my z4 has 140K KM i have 9J wheels at the front . . .
i change all the parts on the pic my steering feels like brand new right now
best thing i change was the swaybar front rubbers with Powerflex polyurethane bushings
my z4 was all over the place on the highway . . . now i can drive with no hands on the steering wheel
if i turn right and take my hands of the steering wheel , the steering wheel will go automatic returned to center point
M-Front & M-Rear Bumper / Aero Skirts / 9J + 10.0J 20 inch Barracuda Voltec T6 gloss black inox Lip / Custom Quad Exhaust / Gloss Black Painted Roof / Gloss Black Painted front Lip / M-Sport Suspension / M-interior
Follow me on Instagram https://www.instagram.com/markos_z4/
Follow me on Instagram https://www.instagram.com/markos_z4/
- Bad_Pritt
- Senior Member
- Posts: 2725
- Joined: Fri Jun 29, 2012 3:51 pm
- road warrior
- Senior Member
- Posts: 2287
- Joined: Wed May 23, 2018 2:12 pm
- Location: Burton On trent
Steering issue at highway speeds
So looked for the no2 rubber you spoke of, sadly as 2.0 slugs are not deemed worthy of that. Is That good news or bad I wonder
If you ever think I'm off my rocker.. Just put me back in it and walk away... It's the kindest thing
My wife says I never listen - or something like that.
gone but not forgotton -Mean Steve - made a sound like a bear with his nuts in a trap.
My wife says I never listen - or something like that.
gone but not forgotton -Mean Steve - made a sound like a bear with his nuts in a trap.
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- Newbie
- Posts: 17
- Joined: Thu Sep 27, 2018 11:54 pm
- Location: Millom Cumbria
Steering issue at highway speeds
Talk to the guy at Z shed in Earlstown near Warrington he can sort the sticky steering, he is brilliant .
- Jembo
- Lifer
- Posts: 6030
- Joined: Sat Jun 25, 2011 11:59 pm
- Location: 1066 Country
Steering issue at highway speeds
You should also try driving a //M. Spent a fortune on all of the above on my old 3.0 which sorted loads out, yet the first drive with the //m’s hydrologic steering is a revelation.
Have come to the conclusion you can get the elec version quite well sorted with time & money, though there’s no substitute for hydrolics
Have come to the conclusion you can get the elec version quite well sorted with time & money, though there’s no substitute for hydrolics
Joined the dark side with a ///M Hell Bronze Sepang Coupe
Ex Aug 2005 Maldives Blue 3 litre cruizer, lots of toyz,
Lifer 54
Ex Aug 2005 Maldives Blue 3 litre cruizer, lots of toyz,
Lifer 54
- exdos
- Senior Member
- Posts: 2789
- Joined: Wed Feb 22, 2012 12:58 am
Steering issue at highway speeds
If all the parts are fitted properly and in good condition, then your problem is likely to be the geometry causing the issue.
If the front -ve camber has been increased (pulling the pins on the front top mounts) then this will make bump steer more likely. Likewise, if you have any amount of toe out (adjusted on the tie rods) this will make the steering very twitchy indeed. Hope this helps.
If the front -ve camber has been increased (pulling the pins on the front top mounts) then this will make bump steer more likely. Likewise, if you have any amount of toe out (adjusted on the tie rods) this will make the steering very twitchy indeed. Hope this helps.
- Bad_Pritt
- Senior Member
- Posts: 2725
- Joined: Fri Jun 29, 2012 3:51 pm
Steering issue at highway speeds
In the meantime I have replaced tie rods and all other mentioned parts, getting it aligned again soon, but already loads better
- road warrior
- Senior Member
- Posts: 2287
- Joined: Wed May 23, 2018 2:12 pm
- Location: Burton On trent
Steering issue at highway speeds
Vis a vis toe in/out situation I wonder if I had it set toe in a bit it might stop the twitchy ness a bit?
If you ever think I'm off my rocker.. Just put me back in it and walk away... It's the kindest thing
My wife says I never listen - or something like that.
gone but not forgotton -Mean Steve - made a sound like a bear with his nuts in a trap.
My wife says I never listen - or something like that.
gone but not forgotton -Mean Steve - made a sound like a bear with his nuts in a trap.
- exdos
- Senior Member
- Posts: 2789
- Joined: Wed Feb 22, 2012 12:58 am
Steering issue at highway speeds
road warrior wrote: ↑Sat Sep 29, 2018 7:48 pm Vis a vis toe in/out situation I wonder if I had it set toe in a bit it might stop the twitchy ness a bit?
If you have toe-in, when the steering is set to drive straight ahead, then both the front wheels are set to roll to a point which converges at some place in front of the car, which might be as far away as infinity. However, if you have toe-out, then the front wheels are set to roll divergently, and both wheels are trying to turn away from each other in opposite directions, and the moment the steering is turned in either direction, the inside wheel is already on a turning path, which makes the car change direction instantly. Therefore, increasing toe-in makes the car inherently more stable for driving straight ahead but adds "scrub" to the tyres which increases rolling resistance and tyre wear but you don't want toe-out on a road car.
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- Newbie
- Posts: 17
- Joined: Tue Sep 18, 2018 9:15 pm
Steering issue at highway speeds
I'm also experiencing this problem, intermittently though. When I first got the car I noticed this immediately driving home on the M5 but then for the first 2 or 3 weeks it was in and out of the dealership to sort some other little things so never got the time to get around it. As soon as I had the opportunity to drive it on the motorway again I made sure the tire pressure was right and one thing I noticed was that the left side had less 0.5 bar (was at 1.5). Pumped both tyres up to 2.0 and the problem seemed to go away. Could easily go up to 100mph without any play on the steering wheel. A couple of days later though, back on the motorway the problem seemed to have returned. Checked tire pressure again and the left tire had lost 0.2 bars. This was in the space of a week. Please bear in mind that I haven`t yet done any work on the front suspension, not even balancing or alignment, and the tires on the car seem to be a budget brand, although fairly new. My question is, would such a small variation in tire pressure be enough to cause this issue? Also, is this a normal loss of pressure in such a short period of time or could I be looking at a small puncture?
- Bad_Pritt
- Senior Member
- Posts: 2725
- Joined: Fri Jun 29, 2012 3:51 pm
Steering issue at highway speeds
Doesn't seem like a normal loss of pressure at all, these are sportscars and should be able to take some abuse. Quality of tyres obviously will always affect quality of the ride. But you should also look at how the tyres are worn because that could be an indication of bad balancing of tyres and or bad alignment. Never a bad idea to have both of those checked out as that's relatively cheap as well.