Got some new rims for my w203..
I am surprise that with a 26mm shank you're still getting 17mm into the hub,... that's like around 8-9 full rotations.
Wow,... so everyone here who's putting SL (230) 18" Mercedes-Benz AMG multi-spoke "Style V" (aka "turbine") wheels on C-class (w203) are using R14 ball seats,... instead of the R13 ball seat I repeatedly stated you should be using
,.... hmmmm, maybe it's time for me to admit I'm wrong,... nah! 


Mercedes generally doesn't disclose ball seat size (R12, R13 or R14) for its various class of cars. Making it more difficult for those who want to use wheels from other class and essentially need hybrid lug bolts. McGard is OEM wheel lock manufacturer to over 30 car manufacturer including Mercedes-Benz,... thus McGard have access to the exact dimension of Mercedes-Benz lug bolts for various Mercedes-Benz models.

Let's look for SL-class (R230) on the McGard site to find McGard wheel locks lug bolts.

http://wheellockkeys.com/mcgard/e-suche_fahrzeug.php
- select car manufacturer: Mercedes-Benz
- select car model: SL (230) with alloy wheels
Then,... like most places they don't tell you the Ball Seat size,... but you have McGard part number: 28018

Another McGard site listing McGard part number with lug bolt dimension shows our McGard part number 28018 has the following dimensions: M14x1.5 thread, *** R13 ball seat ***, 26.7mm shank, 17mm hex
http://www.mcgard-europe.de/pdf/Mass...)%20150807.pdf
McGard (Mercedes-Benz wheel lock lug bolt OEM) says SL-Class (R230) should be using R13 ball seat and NOT R14.

If you're wondering why I'm using McGard site in Europe, it's because McGard & Mercedes-Benz have a deal where McGard OEM Mercedes-Benz wheel locks but can not market or sell them in North America, only Mercedes-Benz stealership can sell them in North America. McGard is allowed to market and sell their OEM Mercedes-Benz wheel locks in Europe.
But hey,.... if R14 works for you better than R13
,... go with R14. Also will I be able to fit 265 35 18s on the rear with these rims and a 5mm spacer?
The Best of Mercedes & AMG
Any conclusion here as to what the correct bolt size should be if NOT running spacers?
Someone correct me if I am wrong but this is what I am running and no issues. No spacers.









