Steering wheel wobble/shaking

Hi!

I recently bought a 2017 jimny with about 25 000km on the meter and next to brand new condition, and overall i love it!

I have noted though that when i brake at 80-90 km/h the steering wheel wobbles/shakes. It’s only at speeds of 80-90 km/h and the shaking doesn’t occur with speeds over 90 or under 80.

Is this normal for a car with solid axles etc or should i be worried? I could take it back to the dealer and ask if they could take a look at it, but now during the summer i work a lot and i might not have time for it until the end of august.

The car is 100% stock.

Will i “break” anything driving around with this condition or should i be alright?

I may have occurred after I swapped from winter to summer tyres, but shouldn’t it wobble all the time if the tyres was the problem?

Thanks!

//Christoffer

Hi and welcome.
It's a fact that solid axle vehicles are susceptible to steering wobble, the Jimny is no exception. However if everything is working "as it left the factory" then it should not have any noticeable issues.
If it's only happening when you touch the brakes it's sounds like you may have a warped or rusty disk, or even a sticking caliper which is introducing the wobble to the axle. I would start by checking the calipers are free to slide and the disks are free of rust or pitting. After this put your winter tyres back just to eliminate the summer ones as a possible cause.
I am assuming the rest of the time you don't experience any wobble, it's only during braking. If you get it when you hit a bump or potholes then it may indicate worn kingpin bearings etc.
All the best
Mike

Edit - it's unlikely you will break anything driving with this issue, but it will eventually cause extra wear and it's just not comfortable as a driver, so it's best to find the cause and eliminate it.

Thank you for your answer!

Yes it’s only shaking/wobbling when braking.
I looked over the disks and i noticed that the wear was kinda rough, almost as if gravel had got stuck between the breakpads and disks and created tiny but a lot of ”bumbps” on the disk. Hard to get a good picture of but the picture below might illustrate what i mean!

//Christoffer

I had similar on the rear of my disks, it induced a pulsed feeling under light braking and a brief wobble under high speed braking, but my damper sorted it out so it never became a problem. I have subsequently changed both disks and now have smooth brakes, so it's likely this is your problem, but you can never be 100% sure. The good news is it's a very easy job to change the disks, but you are also going to need new pads if you go this route.
Mike

Definitely warped brake discs. Happens more often with the modern non-asbestos brake pads.
Cheap and easy fix.
Replace the brake pads as well, even if they look OK.