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rough ride and jerky braking
Posted: Wed May 22, 2019 9:01 pm
by simonbarton
Been driving my new Z4 for around a month now and have to say its the roughest car I have even driven. The auto gearbox lurches down the gears when slowing down making the ride very jerky. Even worse is the braking system: try as I may i cannot get this car to come to a halt without coming to a stuttering halt that throws my head back into the headrest.
Going back to dealer next week but would be interested to hear if anyone else is experiencing similar glitches???
rough ride and jerky braking
Posted: Wed May 22, 2019 9:08 pm
by Zoomer
Sorry to hear you are having issues. I’ve had auto BMWs and to be honest I think they are one the best gearboxes around. Are you running in sport modes or standard .
rough ride and jerky braking
Posted: Wed May 22, 2019 10:46 pm
by buzyg
Welcome to the forum. Hope you get it sorted.
rough ride and jerky braking
Posted: Thu May 23, 2019 1:21 am
by dr_john
Picking up my new G29 in a few days, I didn’t notice that sort of behaviour at all on the test drive.
Also had an E89 auto, no probs.
rough ride and jerky braking
Posted: Thu May 23, 2019 9:38 am
by NewZdriver
It gets a bit jerky in sport plus mode cos the change pattern is altered. I really like what it does, but in comfort mode it’s incredibly smooth unless you have an issue with the box. As for the brakes, can’t fault them
rough ride and jerky braking
Posted: Thu May 23, 2019 11:36 am
by Capa
Sounds like it's worth taking it to the dealer and reporting your findings.
I'd caveat that with asking what you're used to? If you've had some magic-carpet like Bentley beforehand then yes, it'll be a shock to the system.
rough ride and jerky braking
Posted: Thu May 23, 2019 12:12 pm
by Player 1
As above, it possibly depends on what you've come from?
The gearbox in the G29 I drove was perfectly smooth, the brakes are a big step up from the standard E89 brakes so could take a bit of getting used to.
rough ride and jerky braking
Posted: Thu May 23, 2019 7:52 pm
by john-e89
Yep another one I have to say the M40i I tried was spot on with gear changes and brakes, no issues.
Hope you find a solution fella.
rough ride and jerky braking
Posted: Thu May 30, 2019 9:11 am
by simonbarton
I drive an E class Estate (18 plate) as well. Previously drove Mazda MX5 FR (manual). I drive in comfort mode so wouldn't expect jerky ride!!
Both the above cars ran and braked much more smoothly that the Z4. Read a review from Whatcar and it did say braking was not particularly smooth.
Back to dealership today so will update...Cheers for the interest
rough ride and jerky braking
Posted: Thu May 30, 2019 10:07 pm
by dr_john
Only had my G29 2 days, love it, but I did notice that braking is a tad sharp. The lightest touch on the pedal and it brakes quite hard.
I put it down to 'newness' with the hope that the brakes will bed in or I will get used to it.
Can't fault the gearbox although so far I haven't used the manual mode.
rough ride and jerky braking
Posted: Fri May 31, 2019 3:48 pm
by john-e89
dr_john wrote: ↑Thu May 30, 2019 10:07 pm
Only had my G29 2 days, love it, but I did notice that braking is a tad sharp. The lightest touch on the pedal and it brakes quite hard.
I put it down to 'newness' with the hope that the brakes will bed in or I will get used to it.
Can't fault the gearbox although so far I haven't used the manual mode.
Doc..do I really have to post this after all your time on here...??
rough ride and jerky braking
Posted: Fri May 31, 2019 6:06 pm
by dr_john
rough ride and jerky braking
Posted: Fri May 31, 2019 9:06 pm
by gusTaco
simonbarton wrote: ↑Wed May 22, 2019 9:01 pm
Been driving my new Z4 for around a month now and have to say its the roughest car I have even driven. The auto gearbox lurches down the gears when slowing down making the ride very jerky. Even worse is the braking system: try as I may i cannot get this car to come to a halt without coming to a stuttering halt that throws my head back into the headrest.
Going back to dealer next week but would be interested to hear if anyone else is experiencing similar glitches???
I have a G29 Z4 for the next 24 hours, courtesy of BMW as I am (was?) seriously considering part exchanging my E89 and purchase the new one.
I too am having similar issues, especially with the braking and rough suspension. It could be the M sport adaptive suspension, which feels way rougher than the non M Sport suspension in the E89.
rough ride and jerky braking
Posted: Sat Jun 01, 2019 12:08 pm
by dr_john
rough ride and jerky braking
Posted: Sat Jun 01, 2019 12:44 pm
by dr_john
Back on topic, I've found that the brakes need only a gentle touch, any more and the braking is quite severe.
I did notice some vibration and steering issues yesterday and then discovered that I have Land Departure Warning which occurs when crossing a white line at speed, unless the indicators are used. I didn't know that I had got it! It can only be turned off for the duration of the current journey.
