Question about replacing the tires on a 2015 E400 convertible?

[MidnightMarauder]

Salutations everyone, I own a 19-inch wheeled E400 Cabriolet. The journey is horrible 😬. 235/35/R19 tires are mounted up front. I would like to enhance the tire's profile. Would the switch to 235/40/R19 be acceptable?

I have 255/30/R19 on the back tire. Are 255/35/R19 wheels an option?


Alright, according to my tyre guy. He also suggested checking the forum. I recently had these wheels recut, so I'd rather not switch to 18-inch alloys.

Helpful suggestions are welcome.
I want to thank everyone.

[Black_raven]

Your speedo's accuracy will be affected by the change you're suggesting.
Take a look at this:

[Black_raven]

https://www.willtheyfit.com/

[MidnightMarauder]

Hello, I appreciate that. An excellent resource. The next thing I need to know is whether or not the 12 mm claimed increase to my ride height is something I can live with. Also, I will have a 3.5% accuracy rate in my speedo. That means I'm actually going 28.9 miles per hour, even though the speedometer indicates 30. Since it's simply a little adjustment, do you think it will cause any issues? What a relief you were to me.

[KOOLCAR]

Your speedo will likely simply become more accurate as a result; they are all factory-read.
More importantly, while the vehicle is in full lock, I would be concerned about the clearance of the front tire arch liners.

[Black_raven]

If you want to raise the side wall, you should typically lower the tire size so you have almost the same rolling resistance and, as  points out, you won't have any problems with the tyre touching the wheel arches or liners.

Edited 1 hour ago by Black_raven

[rab60bit88]

I think it will work out okay.

For compression, inner arch, or suspension, the most important thing is to avoid catching the arch lip. Changing the ratio of rotational speed between the front and back axles has a slim chance of causing electronics to malfunction. It is also important to think about the insurance consequences and speedo reading.


As I mentioned before, everything should be fine. Just remember that you shouldn't be too upset if the ride comfort remains the same. Before you proceed, be sure the change was worthwhile by taking a large dose of placebo 😁.

[DMGRS]

Even with 18-inch wheels and tires, the ride quality won't be limousine quality.

[KWILB]

Could you tell me who makes the tires?

The journey could have been smoother, and my car arrived on Continental around 5 p.m.


After switching to Goodyear Assi 5, I felt much more in control and had a much more pleasant ride.Limousines will never be an option, as previously stated.

Changes in tyre size are not recommended by Mercedes.

The wheels on your vehicle should be the same size and have staggered tires.

I briefly experimented with a larger rear tire on my car, but I soon realised that it affected its handling, so I went back to the original size.

The automobile is something I really miss having.

My best wishes as you resolve the issue

[paulh2602601]

Just like I mentioned before, some tires provide a more comfortable ride.
Learn as much as you can from this and the web


You might also try lowering the pressure by one or two psi before you buy the tires.

How are the shocks and suspension?

I upgraded from 18s on my old E350 coupe to 19s on my new E400 coupe.

Although I do agree that the ride is somewhat rougher, I had to replace the worn tyres with Hankooks because the original ones weren't very good. I give them a piss under the table.

[Rudy7831]

In a staggered configuration, the back wheels are usually broader.