Looking at a 2015 M4 convertible

[Balr14]

I sold my 09 335i a little while ago and I miss it. So, I'm thinking 2015 - 2016 M4 convertible. I am aware the convertible is on the heavy side, but there aren't many convertibles with a "rear seat" to choose from. Is there anything I should be aware of, major issues, etc?

[Eurosonly]

Originally Posted by Balr14

I sold my 09 335i a little while ago and I miss it. So, I'm thinking 2015 - 2016 M4 convertible. I am aware the convertible is on the heavy side, but there aren't many convertibles with a "rear seat" to choose from. Is there anything I should be aware of, major issues, etc?

I'm on my second f83 now and I've personally never had any problems with the tops but they are complicated so I'm sure they can break in some form. I know there's some top rail cover things that break off. Otherwise just normal m4 problems.

euros

[Grandeur]

For most cases, I don't think there will be any major issues as long as you're planning on keeping the vehicle stock. And of course, if you keep up with all the routine maintenance as well. And at least from what I've seen here on the forums, the S55 platform is pretty bulletproof.

Also, this might vary from who you ask but on top of routine maintenance, I like to condition all the seals twice a year 6 months in-between. Just to have the peace of mind that they won't dry out and cause leaks in the cabin. Some might tell you that it's unnecessary but it's better than potentially having to spend $$$ on replacing them.

Personally, I've only had my F83 for 10k miles (15k-25k) with nothing to complain about and smiles all around. The only thing I had to get taken care of though, is a damaged bushing on the rear driver side upper control arm. But other than that zero issues!

I hope this gives you a somewhat helpful insight into F83/X ownership!

[TrueLoyaltyInc]

Had my 2015 F83 for going on 4 years now… put about 55k miles on it and touching 80k soon… no problems and I have it stage 1 tuned but that's my only performance mod… you won't regret it

[icebiker]

Originally Posted by Balr14

I sold my 09 335i a little while ago and I miss it. So, I'm thinking 2015 - 2016 M4 convertible. I am aware the convertible is on the heavy side, but there aren't many convertibles with a "rear seat" to choose from. Is there anything I should be aware of, major issues, etc?

There are also very few convertibles available with a manual transmission either, if that's what you're looking for. I have a 2016 F83 6MT with 26k miles. While it's been great for me, here are a couple of F83-specific things that have come up on the forums that might be worth checking out. Note that these do not appear to be common or frequent issues, but a few posters have cited them in the past hence sharing with you:

1) rain water collecting in the body just forward of the rear wheel wells due to blocked drain holes. Easy fix
2) water entering the cabin from top of windshield due to bad seal

Hope this helps and good luck in your search!

[Balr14]

I appreciate the positive responses. I am surprised, too. The other BMWs I have owned or expressed interest in were met with lots of warnings about buying a used one. I think my 335i maintenance costs were a little high, but acceptable.

Please comment on stage 1 tune... requirements, result, etc. I would be interested.

My 09 335i had the manual transmission. It was one of the nicest manuals I have owned. But, I'm not fussy about transmissions. Modern automatics, especially with turbo engines, perform extremely well.

I have owned 8 convertibles and 3 BMWs with sunroofs. I know to look for drain hole being blocked. But, thanks for the reminder.

[Truvett]

I’ve had mine for 2 years and only issue outside of routine maintenance is the roof trim did just break off recently so getting that fixed. I also have a stage 1 tune (bootmod3) and love it. Night and day difference vs stock. Other mods I have done are all cosmetic (lip, spoiler, exhaust tips, diffuser, chrome delete (grill, fender grills, badge)).

[Fat Goose]

I absolutely love my F83 comp 6MT! For us manual folk, definitely recommend doing the Clutch Delay Valve (CDV) mod, makes 1st and 2nd gear engagement smooth.

@truvett What spoiler did you choose for the F83 trunk?

[Truvett]

basically a replica RKP one off ebay that another forum member had purchased as well.

I have not taken any pictures of it yet, but here was the thread from original poster and pics:
https://f80.bimmerpost.com/forums/sh...240686&page=51

[UNivek]

Originally Posted by Balr14

I sold my 09 335i a little while ago and I miss it. So, I'm thinking 2015 - 2016 M4 convertible. I am aware the convertible is on the heavy side, but there aren't many convertibles with a "rear seat" to choose from. Is there anything I should be aware of, major issues, etc?

Great set of suggestions already. Just one to add from me. Do not take your convertible to touchless car wash. The jets are powerful enough to get water in and potentially causing harm to that top. My 'convenience' switch — one that allow you to raise and lower the top when folded to access the trunk was damaged because of this.

[R8tedR]

Originally Posted by Eurosonly

I'm on my second f83 now and I've personally never had any problems with the tops but they are complicated so I'm sure they can break in some form. I know there's some top rail cover things that break off. Otherwise just normal m4 problems.

euros

Anyone know the name of the top rail cover thing? Mine just broke off the other day and can't find them anywhere...

[Truvett]

Roof trim center (right or left)

[Eurosonly]

Originally Posted by R8tedR

Anyone know the name of the top rail cover thing? Mine just broke off the other day and can't find them anywhere...

no idea sorry

[Truvett]

Part numbers:
54377184037: Center Roof Trim, Left
54377184038: Center Roof Trim, Right